[PULL 0/7] target-arm queue
[PULL 00/32] target-arm queue
1
Target-arm queue for rc2 -- just some minor bugfixes.
1
target-arm queue: the big stuff here is the final part of
2
rth's patches for Cortex-A76 and Neoverse-N1 support;
3
also present are Gavin's NUMA series and a few other things.
2
4
3
thanks
5
thanks
4
-- PMM
6
-- PMM
5
7
6
The following changes since commit 6e5d4999c761ffa082f60d72a14e5c953515b417:
8
The following changes since commit 554623226f800acf48a2ed568900c1c968ec9a8b:
7
9
8
Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2019-11-19' into staging (2019-11-19 11:29:01 +0000)
10
Merge tag 'qemu-sparc-20220508' of https://github.com/mcayland/qemu into staging (2022-05-08 17:03:26 -0500)
9
11
10
are available in the Git repository at:
12
are available in the Git repository at:
11
13
12
https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20191119
14
https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20220509
13
15
14
for you to fetch changes up to 04c9c81b8fa2ee33f59a26265700fae6fc646062:
16
for you to fetch changes up to ae9141d4a3265553503bf07d3574b40f84615a34:
15
17
16
target/arm: Support EL0 v7m msr/mrs for CONFIG_USER_ONLY (2019-11-19 13:20:28 +0000)
18
hw/acpi/aml-build: Use existing CPU topology to build PPTT table (2022-05-09 11:47:55 +0100)
17
19
18
----------------------------------------------------------------
20
----------------------------------------------------------------
19
target-arm queue:
21
target-arm queue:
20
* Support EL0 v7m msr/mrs for CONFIG_USER_ONLY
22
* MAINTAINERS/.mailmap: update email for Leif Lindholm
21
* Relax r13 restriction for ldrex/strex for v8.0
23
* hw/arm: add version information to sbsa-ref machine DT
22
* Do not reject rt == rt2 for strexd
24
* Enable new features for -cpu max:
23
* net/cadence_gem: Set PHY autonegotiation restart status
25
FEAT_Debugv8p2, FEAT_Debugv8p4, FEAT_RAS (minimal version only),
24
* ssi: xilinx_spips: Skip spi bus update for a few register writes
26
FEAT_IESB, FEAT_CSV2, FEAT_CSV2_2, FEAT_CSV3, FEAT_DGH
25
* pl031: Expose RTCICR as proper WC register
27
* Emulate Cortex-A76
28
* Emulate Neoverse-N1
29
* Fix the virt board default NUMA topology
26
30
27
----------------------------------------------------------------
31
----------------------------------------------------------------
28
Alexander Graf (1):
32
Gavin Shan (6):
29
pl031: Expose RTCICR as proper WC register
33
qapi/machine.json: Add cluster-id
34
qtest/numa-test: Specify CPU topology in aarch64_numa_cpu()
35
hw/arm/virt: Consider SMP configuration in CPU topology
36
qtest/numa-test: Correct CPU and NUMA association in aarch64_numa_cpu()
37
hw/arm/virt: Fix CPU's default NUMA node ID
38
hw/acpi/aml-build: Use existing CPU topology to build PPTT table
30
39
31
Linus Ziegert (1):
40
Leif Lindholm (2):
32
net/cadence_gem: Set PHY autonegotiation restart status
41
MAINTAINERS/.mailmap: update email for Leif Lindholm
42
hw/arm: add versioning to sbsa-ref machine DT
33
43
34
Richard Henderson (4):
44
Richard Henderson (24):
35
target/arm: Merge arm_cpu_vq_map_next_smaller into sole caller
45
target/arm: Handle cpreg registration for missing EL
36
target/arm: Do not reject rt == rt2 for strexd
46
target/arm: Drop EL3 no EL2 fallbacks
37
target/arm: Relax r13 restriction for ldrex/strex for v8.0
47
target/arm: Merge zcr reginfo
38
target/arm: Support EL0 v7m msr/mrs for CONFIG_USER_ONLY
48
target/arm: Adjust definition of CONTEXTIDR_EL2
49
target/arm: Move cortex impdef sysregs to cpu_tcg.c
50
target/arm: Update qemu-system-arm -cpu max to cortex-a57
51
target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max
52
target/arm: Split out aa32_max_features
53
target/arm: Annotate arm_max_initfn with FEAT identifiers
54
target/arm: Use field names for manipulating EL2 and EL3 modes
55
target/arm: Enable FEAT_Debugv8p2 for -cpu max
56
target/arm: Enable FEAT_Debugv8p4 for -cpu max
57
target/arm: Add minimal RAS registers
58
target/arm: Enable SCR and HCR bits for RAS
59
target/arm: Implement virtual SError exceptions
60
target/arm: Implement ESB instruction
61
target/arm: Enable FEAT_RAS for -cpu max
62
target/arm: Enable FEAT_IESB for -cpu max
63
target/arm: Enable FEAT_CSV2 for -cpu max
64
target/arm: Enable FEAT_CSV2_2 for -cpu max
65
target/arm: Enable FEAT_CSV3 for -cpu max
66
target/arm: Enable FEAT_DGH for -cpu max
67
target/arm: Define cortex-a76
68
target/arm: Define neoverse-n1
39
69
40
Sai Pavan Boddu (1):
70
docs/system/arm/emulation.rst | 10 +
41
ssi: xilinx_spips: Skip spi bus update for a few register writes
71
docs/system/arm/virt.rst | 2 +
42
72
qapi/machine.json | 6 +-
43
target/arm/cpu.h | 5 +--
73
target/arm/cpregs.h | 11 +
44
hw/net/cadence_gem.c | 9 ++--
74
target/arm/cpu.h | 23 ++
45
hw/rtc/pl031.c | 6 +--
75
target/arm/helper.h | 1 +
46
hw/ssi/xilinx_spips.c | 22 ++++++++--
76
target/arm/internals.h | 16 ++
47
target/arm/cpu64.c | 15 -------
77
target/arm/syndrome.h | 5 +
48
target/arm/helper.c | 9 +++-
78
target/arm/a32.decode | 16 +-
49
target/arm/m_helper.c | 114 ++++++++++++++++++++++++++++++-------------------
79
target/arm/t32.decode | 18 +-
50
target/arm/translate.c | 14 +++---
80
hw/acpi/aml-build.c | 111 ++++----
51
8 files changed, 113 insertions(+), 81 deletions(-)
81
hw/arm/sbsa-ref.c | 16 ++
52
82
hw/arm/virt.c | 21 +-
83
hw/core/machine-hmp-cmds.c | 4 +
84
hw/core/machine.c | 16 ++
85
target/arm/cpu.c | 66 ++++-
86
target/arm/cpu64.c | 353 ++++++++++++++-----------
87
target/arm/cpu_tcg.c | 227 +++++++++++-----
88
target/arm/helper.c | 600 +++++++++++++++++++++++++-----------------
89
target/arm/op_helper.c | 43 +++
90
target/arm/translate-a64.c | 18 ++
91
target/arm/translate.c | 23 ++
92
tests/qtest/numa-test.c | 19 +-
93
.mailmap | 3 +-
94
MAINTAINERS | 2 +-
95
25 files changed, 1068 insertions(+), 562 deletions(-)
diff view generated by jsdifflib
[PULL 4/7] net/cadence_gem: Set PHY autonegotiation restart status
[PULL 01/32] MAINTAINERS/.mailmap: update email for Leif Lindholm
1
From: Linus Ziegert <linus.ziegert+qemu@holoplot.com>
1
From: Leif Lindholm <quic_llindhol@quicinc.com>
2
2
3
The Linux kernel PHY driver sets AN_RESTART in the BMCR of the
3
NUVIA was acquired by Qualcomm in March 2021, but kept functioning on
4
PHY when autonegotiation is started.
4
separate infrastructure for a transitional period. We've now switched
5
Recently the kernel started to read back the PHY's AN_RESTART
5
over to contributing as Qualcomm Innovation Center (quicinc), so update
6
bit and now checks whether the autonegotiation is complete and
6
my email address to reflect this.
7
the bit was cleared [1]. Otherwise the link status is down.
8
7
9
The emulated PHY needs to clear AN_RESTART immediately to inform
8
Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
10
the kernel driver about the completion of autonegotiation phase.
9
Message-id: 20220505113740.75565-1-quic_llindhol@quicinc.com
11
10
Cc: Leif Lindholm <leif@nuviainc.com>
12
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c36757eb9dee
11
Cc: Peter Maydell <peter.maydell@linaro.org>
13
12
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
14
Signed-off-by: Linus Ziegert <linus.ziegert+qemu@holoplot.com>
13
[Fixed commit message typo]
15
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
16
Message-id: 20191104181604.21943-1-linus.ziegert+qemu@holoplot.com
17
Cc: qemu-stable@nongnu.org
18
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
19
---
15
---
20
hw/net/cadence_gem.c | 9 +++++----
16
.mailmap | 3 ++-
21
1 file changed, 5 insertions(+), 4 deletions(-)
17
MAINTAINERS | 2 +-
18
2 files changed, 3 insertions(+), 2 deletions(-)
22
19
23
diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c
20
diff --git a/.mailmap b/.mailmap
24
index XXXXXXX..XXXXXXX 100644
21
index XXXXXXX..XXXXXXX 100644
25
--- a/hw/net/cadence_gem.c
22
--- a/.mailmap
26
+++ b/hw/net/cadence_gem.c
23
+++ b/.mailmap
27
@@ -XXX,XX +XXX,XX @@
24
@@ -XXX,XX +XXX,XX @@ Greg Kurz <groug@kaod.org> <gkurz@linux.vnet.ibm.com>
28
#define PHY_REG_EXT_PHYSPCFC_ST 27
25
Huacai Chen <chenhuacai@kernel.org> <chenhc@lemote.com>
29
#define PHY_REG_CABLE_DIAG 28
26
Huacai Chen <chenhuacai@kernel.org> <chenhuacai@loongson.cn>
30
27
James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
31
-#define PHY_REG_CONTROL_RST 0x8000
28
-Leif Lindholm <leif@nuviainc.com> <leif.lindholm@linaro.org>
32
-#define PHY_REG_CONTROL_LOOP 0x4000
29
+Leif Lindholm <quic_llindhol@quicinc.com> <leif.lindholm@linaro.org>
33
-#define PHY_REG_CONTROL_ANEG 0x1000
30
+Leif Lindholm <quic_llindhol@quicinc.com> <leif@nuviainc.com>
34
+#define PHY_REG_CONTROL_RST 0x8000
31
Radoslaw Biernacki <rad@semihalf.com> <radoslaw.biernacki@linaro.org>
35
+#define PHY_REG_CONTROL_LOOP 0x4000
32
Paul Burton <paulburton@kernel.org> <paul.burton@mips.com>
36
+#define PHY_REG_CONTROL_ANEG 0x1000
33
Paul Burton <paulburton@kernel.org> <paul.burton@imgtec.com>
37
+#define PHY_REG_CONTROL_ANRESTART 0x0200
34
diff --git a/MAINTAINERS b/MAINTAINERS
38
35
index XXXXXXX..XXXXXXX 100644
39
#define PHY_REG_STATUS_LINK 0x0004
36
--- a/MAINTAINERS
40
#define PHY_REG_STATUS_ANEGCMPL 0x0020
37
+++ b/MAINTAINERS
41
@@ -XXX,XX +XXX,XX @@ static void gem_phy_write(CadenceGEMState *s, unsigned reg_num, uint16_t val)
38
@@ -XXX,XX +XXX,XX @@ F: include/hw/ssi/imx_spi.h
42
}
39
SBSA-REF
43
if (val & PHY_REG_CONTROL_ANEG) {
40
M: Radoslaw Biernacki <rad@semihalf.com>
44
/* Complete autonegotiation immediately */
41
M: Peter Maydell <peter.maydell@linaro.org>
45
- val &= ~PHY_REG_CONTROL_ANEG;
42
-R: Leif Lindholm <leif@nuviainc.com>
46
+ val &= ~(PHY_REG_CONTROL_ANEG | PHY_REG_CONTROL_ANRESTART);
43
+R: Leif Lindholm <quic_llindhol@quicinc.com>
47
s->phy_regs[PHY_REG_STATUS] |= PHY_REG_STATUS_ANEGCMPL;
44
L: qemu-arm@nongnu.org
48
}
45
S: Maintained
49
if (val & PHY_REG_CONTROL_LOOP) {
46
F: hw/arm/sbsa-ref.c
50
--
47
--
51
2.20.1
48
2.25.1
52
49
53
50
diff view generated by jsdifflib
New patch
[PULL 02/32] target/arm: Handle cpreg registration for missing EL
1
1
From: Richard Henderson <richard.henderson@linaro.org>
2
3
More gracefully handle cpregs when EL2 and/or EL3 are missing.
4
If the reg is entirely inaccessible, do not register it at all.
5
If the reg is for EL2, and EL3 is present but EL2 is not,
6
either discard, squash to res0, const, or keep unchanged.
7
8
Per rule RJFFP, mark the 4 aarch32 hypervisor access registers
9
with ARM_CP_EL3_NO_EL2_KEEP, and mark all of the EL2 address
10
translation and tlb invalidation "regs" ARM_CP_EL3_NO_EL2_UNDEF.
11
Mark the 2 virtualization processor id regs ARM_CP_EL3_NO_EL2_C_NZ.
12
13
This will simplify cpreg registration for conditional arm features.
14
15
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
16
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
17
Message-id: 20220506180242.216785-2-richard.henderson@linaro.org
18
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
19
---
20
target/arm/cpregs.h | 11 +++
21
target/arm/helper.c | 178 ++++++++++++++++++++++++++++++--------------
22
2 files changed, 133 insertions(+), 56 deletions(-)
23
24
diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h
25
index XXXXXXX..XXXXXXX 100644
26
--- a/target/arm/cpregs.h
27
+++ b/target/arm/cpregs.h
28
@@ -XXX,XX +XXX,XX @@ enum {
29
ARM_CP_SVE = 1 << 14,
30
/* Flag: Do not expose in gdb sysreg xml. */
31
ARM_CP_NO_GDB = 1 << 15,
32
+ /*
33
+ * Flags: If EL3 but not EL2...
34
+ * - UNDEF: discard the cpreg,
35
+ * - KEEP: retain the cpreg as is,
36
+ * - C_NZ: set const on the cpreg, but retain resetvalue,
37
+ * - else: set const on the cpreg, zero resetvalue, aka RES0.
38
+ * See rule RJFFP in section D1.1.3 of DDI0487H.a.
39
+ */
40
+ ARM_CP_EL3_NO_EL2_UNDEF = 1 << 16,
41
+ ARM_CP_EL3_NO_EL2_KEEP = 1 << 17,
42
+ ARM_CP_EL3_NO_EL2_C_NZ = 1 << 18,
43
};
44
45
/*
46
diff --git a/target/arm/helper.c b/target/arm/helper.c
47
index XXXXXXX..XXXXXXX 100644
48
--- a/target/arm/helper.c
49
+++ b/target/arm/helper.c
50
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
51
.access = PL1_RW, .readfn = spsel_read, .writefn = spsel_write },
52
{ .name = "FPEXC32_EL2", .state = ARM_CP_STATE_AA64,
53
.opc0 = 3, .opc1 = 4, .crn = 5, .crm = 3, .opc2 = 0,
54
- .access = PL2_RW, .type = ARM_CP_ALIAS | ARM_CP_FPU,
55
+ .access = PL2_RW,
56
+ .type = ARM_CP_ALIAS | ARM_CP_FPU | ARM_CP_EL3_NO_EL2_KEEP,
57
.fieldoffset = offsetof(CPUARMState, vfp.xregs[ARM_VFP_FPEXC]) },
58
{ .name = "DACR32_EL2", .state = ARM_CP_STATE_AA64,
59
.opc0 = 3, .opc1 = 4, .crn = 3, .crm = 0, .opc2 = 0,
60
- .access = PL2_RW, .resetvalue = 0,
61
+ .access = PL2_RW, .resetvalue = 0, .type = ARM_CP_EL3_NO_EL2_KEEP,
62
.writefn = dacr_write, .raw_writefn = raw_write,
63
.fieldoffset = offsetof(CPUARMState, cp15.dacr32_el2) },
64
{ .name = "IFSR32_EL2", .state = ARM_CP_STATE_AA64,
65
.opc0 = 3, .opc1 = 4, .crn = 5, .crm = 0, .opc2 = 1,
66
- .access = PL2_RW, .resetvalue = 0,
67
+ .access = PL2_RW, .resetvalue = 0, .type = ARM_CP_EL3_NO_EL2_KEEP,
68
.fieldoffset = offsetof(CPUARMState, cp15.ifsr32_el2) },
69
{ .name = "SPSR_IRQ", .state = ARM_CP_STATE_AA64,
70
.type = ARM_CP_ALIAS,
71
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
72
.writefn = tlbimva_hyp_is_write },
73
{ .name = "TLBI_ALLE2", .state = ARM_CP_STATE_AA64,
74
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 0,
75
- .type = ARM_CP_NO_RAW, .access = PL2_W,
76
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
77
.writefn = tlbi_aa64_alle2_write },
78
{ .name = "TLBI_VAE2", .state = ARM_CP_STATE_AA64,
79
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 1,
80
- .type = ARM_CP_NO_RAW, .access = PL2_W,
81
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
82
.writefn = tlbi_aa64_vae2_write },
83
{ .name = "TLBI_VALE2", .state = ARM_CP_STATE_AA64,
84
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 5,
85
- .access = PL2_W, .type = ARM_CP_NO_RAW,
86
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
87
.writefn = tlbi_aa64_vae2_write },
88
{ .name = "TLBI_ALLE2IS", .state = ARM_CP_STATE_AA64,
89
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 0,
90
- .access = PL2_W, .type = ARM_CP_NO_RAW,
91
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
92
.writefn = tlbi_aa64_alle2is_write },
93
{ .name = "TLBI_VAE2IS", .state = ARM_CP_STATE_AA64,
94
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 1,
95
- .type = ARM_CP_NO_RAW, .access = PL2_W,
96
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
97
.writefn = tlbi_aa64_vae2is_write },
98
{ .name = "TLBI_VALE2IS", .state = ARM_CP_STATE_AA64,
99
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 5,
100
- .access = PL2_W, .type = ARM_CP_NO_RAW,
101
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
102
.writefn = tlbi_aa64_vae2is_write },
103
#ifndef CONFIG_USER_ONLY
104
/* Unlike the other EL2-related AT operations, these must
105
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
106
{ .name = "AT_S1E2R", .state = ARM_CP_STATE_AA64,
107
.opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 0,
108
.access = PL2_W, .accessfn = at_s1e2_access,
109
- .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, .writefn = ats_write64 },
110
+ .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC | ARM_CP_EL3_NO_EL2_UNDEF,
111
+ .writefn = ats_write64 },
112
{ .name = "AT_S1E2W", .state = ARM_CP_STATE_AA64,
113
.opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1,
114
.access = PL2_W, .accessfn = at_s1e2_access,
115
- .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, .writefn = ats_write64 },
116
+ .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC | ARM_CP_EL3_NO_EL2_UNDEF,
117
+ .writefn = ats_write64 },
118
/* The AArch32 ATS1H* operations are CONSTRAINED UNPREDICTABLE
119
* if EL2 is not implemented; we choose to UNDEF. Behaviour at EL3
120
* with SCR.NS == 0 outside Monitor mode is UNPREDICTABLE; we choose
121
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = {
122
{ .name = "DBGVCR32_EL2", .state = ARM_CP_STATE_AA64,
123
.opc0 = 2, .opc1 = 4, .crn = 0, .crm = 7, .opc2 = 0,
124
.access = PL2_RW, .accessfn = access_tda,
125
- .type = ARM_CP_NOP },
126
+ .type = ARM_CP_NOP | ARM_CP_EL3_NO_EL2_KEEP },
127
/* Dummy MDCCINT_EL1, since we don't implement the Debug Communications
128
* Channel but Linux may try to access this register. The 32-bit
129
* alias is DBGDCCINT.
130
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo tlbirange_reginfo[] = {
131
.access = PL2_W, .type = ARM_CP_NOP },
132
{ .name = "TLBI_RVAE2IS", .state = ARM_CP_STATE_AA64,
133
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 2, .opc2 = 1,
134
- .access = PL2_W, .type = ARM_CP_NO_RAW,
135
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
136
.writefn = tlbi_aa64_rvae2is_write },
137
{ .name = "TLBI_RVALE2IS", .state = ARM_CP_STATE_AA64,
138
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 2, .opc2 = 5,
139
- .access = PL2_W, .type = ARM_CP_NO_RAW,
140
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
141
.writefn = tlbi_aa64_rvae2is_write },
142
{ .name = "TLBI_RIPAS2E1", .state = ARM_CP_STATE_AA64,
143
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 2,
144
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo tlbirange_reginfo[] = {
145
.access = PL2_W, .type = ARM_CP_NOP },
146
{ .name = "TLBI_RVAE2OS", .state = ARM_CP_STATE_AA64,
147
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 5, .opc2 = 1,
148
- .access = PL2_W, .type = ARM_CP_NO_RAW,
149
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
150
.writefn = tlbi_aa64_rvae2is_write },
151
{ .name = "TLBI_RVALE2OS", .state = ARM_CP_STATE_AA64,
152
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 5, .opc2 = 5,
153
- .access = PL2_W, .type = ARM_CP_NO_RAW,
154
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
155
.writefn = tlbi_aa64_rvae2is_write },
156
{ .name = "TLBI_RVAE2", .state = ARM_CP_STATE_AA64,
157
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 6, .opc2 = 1,
158
- .access = PL2_W, .type = ARM_CP_NO_RAW,
159
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
160
.writefn = tlbi_aa64_rvae2_write },
161
{ .name = "TLBI_RVALE2", .state = ARM_CP_STATE_AA64,
162
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 6, .opc2 = 5,
163
- .access = PL2_W, .type = ARM_CP_NO_RAW,
164
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
165
.writefn = tlbi_aa64_rvae2_write },
166
{ .name = "TLBI_RVAE3IS", .state = ARM_CP_STATE_AA64,
167
.opc0 = 1, .opc1 = 6, .crn = 8, .crm = 2, .opc2 = 1,
168
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo tlbios_reginfo[] = {
169
.writefn = tlbi_aa64_vae1is_write },
170
{ .name = "TLBI_ALLE2OS", .state = ARM_CP_STATE_AA64,
171
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 0,
172
- .access = PL2_W, .type = ARM_CP_NO_RAW,
173
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
174
.writefn = tlbi_aa64_alle2is_write },
175
{ .name = "TLBI_VAE2OS", .state = ARM_CP_STATE_AA64,
176
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 1,
177
- .access = PL2_W, .type = ARM_CP_NO_RAW,
178
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
179
.writefn = tlbi_aa64_vae2is_write },
180
{ .name = "TLBI_ALLE1OS", .state = ARM_CP_STATE_AA64,
181
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 4,
182
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo tlbios_reginfo[] = {
183
.writefn = tlbi_aa64_alle1is_write },
184
{ .name = "TLBI_VALE2OS", .state = ARM_CP_STATE_AA64,
185
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 5,
186
- .access = PL2_W, .type = ARM_CP_NO_RAW,
187
+ .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF,
188
.writefn = tlbi_aa64_vae2is_write },
189
{ .name = "TLBI_VMALLS12E1OS", .state = ARM_CP_STATE_AA64,
190
.opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 6,
191
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
192
{ .name = "VPIDR", .state = ARM_CP_STATE_AA32,
193
.cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0,
194
.access = PL2_RW, .accessfn = access_el3_aa32ns,
195
- .resetvalue = cpu->midr, .type = ARM_CP_ALIAS,
196
+ .resetvalue = cpu->midr,
197
+ .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_C_NZ,
198
.fieldoffset = offsetoflow32(CPUARMState, cp15.vpidr_el2) },
199
{ .name = "VPIDR_EL2", .state = ARM_CP_STATE_AA64,
200
.opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0,
201
.access = PL2_RW, .resetvalue = cpu->midr,
202
+ .type = ARM_CP_EL3_NO_EL2_C_NZ,
203
.fieldoffset = offsetof(CPUARMState, cp15.vpidr_el2) },
204
{ .name = "VMPIDR", .state = ARM_CP_STATE_AA32,
205
.cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5,
206
.access = PL2_RW, .accessfn = access_el3_aa32ns,
207
- .resetvalue = vmpidr_def, .type = ARM_CP_ALIAS,
208
+ .resetvalue = vmpidr_def,
209
+ .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_C_NZ,
210
.fieldoffset = offsetoflow32(CPUARMState, cp15.vmpidr_el2) },
211
{ .name = "VMPIDR_EL2", .state = ARM_CP_STATE_AA64,
212
.opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5,
213
- .access = PL2_RW,
214
- .resetvalue = vmpidr_def,
215
+ .access = PL2_RW, .resetvalue = vmpidr_def,
216
+ .type = ARM_CP_EL3_NO_EL2_C_NZ,
217
.fieldoffset = offsetof(CPUARMState, cp15.vmpidr_el2) },
218
};
219
define_arm_cp_regs(cpu, vpidr_regs);
220
@@ -XXX,XX +XXX,XX @@ static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r,
221
int crm, int opc1, int opc2,
222
const char *name)
223
{
224
+ CPUARMState *env = &cpu->env;
225
uint32_t key;
226
ARMCPRegInfo *r2;
227
bool is64 = r->type & ARM_CP_64BIT;
228
bool ns = secstate & ARM_CP_SECSTATE_NS;
229
int cp = r->cp;
230
- bool isbanked;
231
size_t name_len;
232
+ bool make_const;
233
234
switch (state) {
235
case ARM_CP_STATE_AA32:
236
@@ -XXX,XX +XXX,XX @@ static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r,
237
}
238
}
239
240
+ /*
241
+ * Eliminate registers that are not present because the EL is missing.
242
+ * Doing this here makes it easier to put all registers for a given
243
+ * feature into the same ARMCPRegInfo array and define them all at once.
244
+ */
245
+ make_const = false;
246
+ if (arm_feature(env, ARM_FEATURE_EL3)) {
247
+ /*
248
+ * An EL2 register without EL2 but with EL3 is (usually) RES0.
249
+ * See rule RJFFP in section D1.1.3 of DDI0487H.a.
250
+ */
251
+ int min_el = ctz32(r->access) / 2;
252
+ if (min_el == 2 && !arm_feature(env, ARM_FEATURE_EL2)) {
253
+ if (r->type & ARM_CP_EL3_NO_EL2_UNDEF) {
254
+ return;
255
+ }
256
+ make_const = !(r->type & ARM_CP_EL3_NO_EL2_KEEP);
257
+ }
258
+ } else {
259
+ CPAccessRights max_el = (arm_feature(env, ARM_FEATURE_EL2)
260
+ ? PL2_RW : PL1_RW);
261
+ if ((r->access & max_el) == 0) {
262
+ return;
263
+ }
264
+ }
265
+
266
/* Combine cpreg and name into one allocation. */
267
name_len = strlen(name) + 1;
268
r2 = g_malloc(sizeof(*r2) + name_len);
269
@@ -XXX,XX +XXX,XX @@ static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r,
270
r2->opaque = opaque;
271
}
272
273
- isbanked = r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1];
274
- if (isbanked) {
275
+ if (make_const) {
276
+ /* This should not have been a very special register to begin. */
277
+ int old_special = r2->type & ARM_CP_SPECIAL_MASK;
278
+ assert(old_special == 0 || old_special == ARM_CP_NOP);
279
/*
280
- * Register is banked (using both entries in array).
281
- * Overwriting fieldoffset as the array is only used to define
282
- * banked registers but later only fieldoffset is used.
283
+ * Set the special function to CONST, retaining the other flags.
284
+ * This is important for e.g. ARM_CP_SVE so that we still
285
+ * take the SVE trap if CPTR_EL3.EZ == 0.
286
*/
287
- r2->fieldoffset = r->bank_fieldoffsets[ns];
288
- }
289
+ r2->type = (r2->type & ~ARM_CP_SPECIAL_MASK) | ARM_CP_CONST;
290
+ /*
291
+ * Usually, these registers become RES0, but there are a few
292
+ * special cases like VPIDR_EL2 which have a constant non-zero
293
+ * value with writes ignored.
294
+ */
295
+ if (!(r->type & ARM_CP_EL3_NO_EL2_C_NZ)) {
296
+ r2->resetvalue = 0;
297
+ }
298
+ /*
299
+ * ARM_CP_CONST has precedence, so removing the callbacks and
300
+ * offsets are not strictly necessary, but it is potentially
301
+ * less confusing to debug later.
302
+ */
303
+ r2->readfn = NULL;
304
+ r2->writefn = NULL;
305
+ r2->raw_readfn = NULL;
306
+ r2->raw_writefn = NULL;
307
+ r2->resetfn = NULL;
308
+ r2->fieldoffset = 0;
309
+ r2->bank_fieldoffsets[0] = 0;
310
+ r2->bank_fieldoffsets[1] = 0;
311
+ } else {
312
+ bool isbanked = r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1];
313
314
- if (state == ARM_CP_STATE_AA32) {
315
if (isbanked) {
316
/*
317
- * If the register is banked then we don't need to migrate or
318
- * reset the 32-bit instance in certain cases:
319
- *
320
- * 1) If the register has both 32-bit and 64-bit instances then we
321
- * can count on the 64-bit instance taking care of the
322
- * non-secure bank.
323
- * 2) If ARMv8 is enabled then we can count on a 64-bit version
324
- * taking care of the secure bank. This requires that separate
325
- * 32 and 64-bit definitions are provided.
326
+ * Register is banked (using both entries in array).
327
+ * Overwriting fieldoffset as the array is only used to define
328
+ * banked registers but later only fieldoffset is used.
329
*/
330
- if ((r->state == ARM_CP_STATE_BOTH && ns) ||
331
- (arm_feature(&cpu->env, ARM_FEATURE_V8) && !ns)) {
332
+ r2->fieldoffset = r->bank_fieldoffsets[ns];
333
+ }
334
+ if (state == ARM_CP_STATE_AA32) {
335
+ if (isbanked) {
336
+ /*
337
+ * If the register is banked then we don't need to migrate or
338
+ * reset the 32-bit instance in certain cases:
339
+ *
340
+ * 1) If the register has both 32-bit and 64-bit instances
341
+ * then we can count on the 64-bit instance taking care
342
+ * of the non-secure bank.
343
+ * 2) If ARMv8 is enabled then we can count on a 64-bit
344
+ * version taking care of the secure bank. This requires
345
+ * that separate 32 and 64-bit definitions are provided.
346
+ */
347
+ if ((r->state == ARM_CP_STATE_BOTH && ns) ||
348
+ (arm_feature(env, ARM_FEATURE_V8) && !ns)) {
349
+ r2->type |= ARM_CP_ALIAS;
350
+ }
351
+ } else if ((secstate != r->secure) && !ns) {
352
+ /*
353
+ * The register is not banked so we only want to allow
354
+ * migration of the non-secure instance.
355
+ */
356
r2->type |= ARM_CP_ALIAS;
357
}
358
- } else if ((secstate != r->secure) && !ns) {
359
- /*
360
- * The register is not banked so we only want to allow migration
361
- * of the non-secure instance.
362
- */
363
- r2->type |= ARM_CP_ALIAS;
364
- }
365
366
- if (HOST_BIG_ENDIAN &&
367
- r->state == ARM_CP_STATE_BOTH && r2->fieldoffset) {
368
- r2->fieldoffset += sizeof(uint32_t);
369
+ if (HOST_BIG_ENDIAN &&
370
+ r->state == ARM_CP_STATE_BOTH && r2->fieldoffset) {
371
+ r2->fieldoffset += sizeof(uint32_t);
372
+ }
373
}
374
}
375
376
@@ -XXX,XX +XXX,XX @@ static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r,
377
* multiple times. Special registers (ie NOP/WFI) are
378
* never migratable and not even raw-accessible.
379
*/
380
- if (r->type & ARM_CP_SPECIAL_MASK) {
381
+ if (r2->type & ARM_CP_SPECIAL_MASK) {
382
r2->type |= ARM_CP_NO_RAW;
383
}
384
if (((r->crm == CP_ANY) && crm != 0) ||
385
--
386
2.25.1
diff view generated by jsdifflib
New patch
[PULL 03/32] target/arm: Drop EL3 no EL2 fallbacks
1
1
From: Richard Henderson <richard.henderson@linaro.org>
2
3
Drop el3_no_el2_cp_reginfo, el3_no_el2_v8_cp_reginfo, and the local
4
vpidr_regs definition, and rely on the squashing to ARM_CP_CONST
5
while registering for v8.
6
7
This is a behavior change for v7 cpus with Security Extensions and
8
without Virtualization Extensions, in that the virtualization cpregs
9
are now correctly not present. This would be a migration compatibility
10
break, except that we have an existing bug in which migration of 32-bit
11
cpus with Security Extensions enabled does not work.
12
13
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
14
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
15
Message-id: 20220506180242.216785-3-richard.henderson@linaro.org
16
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
17
---
18
target/arm/helper.c | 158 ++++----------------------------------------
19
1 file changed, 13 insertions(+), 145 deletions(-)
20
21
diff --git a/target/arm/helper.c b/target/arm/helper.c
22
index XXXXXXX..XXXXXXX 100644
23
--- a/target/arm/helper.c
24
+++ b/target/arm/helper.c
25
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
26
.fieldoffset = offsetoflow32(CPUARMState, cp15.mdcr_el3) },
27
};
28
29
-/* Used to describe the behaviour of EL2 regs when EL2 does not exist. */
30
-static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = {
31
- { .name = "VBAR_EL2", .state = ARM_CP_STATE_BOTH,
32
- .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 0,
33
- .access = PL2_RW,
34
- .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore },
35
- { .name = "HCR_EL2", .state = ARM_CP_STATE_BOTH,
36
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0,
37
- .access = PL2_RW,
38
- .type = ARM_CP_CONST, .resetvalue = 0 },
39
- { .name = "HACR_EL2", .state = ARM_CP_STATE_BOTH,
40
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 7,
41
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
42
- { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH,
43
- .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0,
44
- .access = PL2_RW,
45
- .type = ARM_CP_CONST, .resetvalue = 0 },
46
- { .name = "CPTR_EL2", .state = ARM_CP_STATE_BOTH,
47
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 2,
48
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
49
- { .name = "MAIR_EL2", .state = ARM_CP_STATE_BOTH,
50
- .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 0,
51
- .access = PL2_RW, .type = ARM_CP_CONST,
52
- .resetvalue = 0 },
53
- { .name = "HMAIR1", .state = ARM_CP_STATE_AA32,
54
- .cp = 15, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1,
55
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
56
- { .name = "AMAIR_EL2", .state = ARM_CP_STATE_BOTH,
57
- .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 0,
58
- .access = PL2_RW, .type = ARM_CP_CONST,
59
- .resetvalue = 0 },
60
- { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32,
61
- .cp = 15, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1,
62
- .access = PL2_RW, .type = ARM_CP_CONST,
63
- .resetvalue = 0 },
64
- { .name = "AFSR0_EL2", .state = ARM_CP_STATE_BOTH,
65
- .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 1, .opc2 = 0,
66
- .access = PL2_RW, .type = ARM_CP_CONST,
67
- .resetvalue = 0 },
68
- { .name = "AFSR1_EL2", .state = ARM_CP_STATE_BOTH,
69
- .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 1, .opc2 = 1,
70
- .access = PL2_RW, .type = ARM_CP_CONST,
71
- .resetvalue = 0 },
72
- { .name = "TCR_EL2", .state = ARM_CP_STATE_BOTH,
73
- .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 2,
74
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
75
- { .name = "VTCR_EL2", .state = ARM_CP_STATE_BOTH,
76
- .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2,
77
- .access = PL2_RW, .accessfn = access_el3_aa32ns,
78
- .type = ARM_CP_CONST, .resetvalue = 0 },
79
- { .name = "VTTBR", .state = ARM_CP_STATE_AA32,
80
- .cp = 15, .opc1 = 6, .crm = 2,
81
- .access = PL2_RW, .accessfn = access_el3_aa32ns,
82
- .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
83
- { .name = "VTTBR_EL2", .state = ARM_CP_STATE_AA64,
84
- .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 0,
85
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
86
- { .name = "SCTLR_EL2", .state = ARM_CP_STATE_BOTH,
87
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 0,
88
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
89
- { .name = "TPIDR_EL2", .state = ARM_CP_STATE_BOTH,
90
- .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 2,
91
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
92
- { .name = "TTBR0_EL2", .state = ARM_CP_STATE_AA64,
93
- .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 0,
94
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
95
- { .name = "HTTBR", .cp = 15, .opc1 = 4, .crm = 2,
96
- .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_CONST,
97
- .resetvalue = 0 },
98
- { .name = "CNTHCTL_EL2", .state = ARM_CP_STATE_BOTH,
99
- .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 1, .opc2 = 0,
100
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
101
- { .name = "CNTVOFF_EL2", .state = ARM_CP_STATE_AA64,
102
- .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 0, .opc2 = 3,
103
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
104
- { .name = "CNTVOFF", .cp = 15, .opc1 = 4, .crm = 14,
105
- .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_CONST,
106
- .resetvalue = 0 },
107
- { .name = "CNTHP_CVAL_EL2", .state = ARM_CP_STATE_AA64,
108
- .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 2,
109
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
110
- { .name = "CNTHP_CVAL", .cp = 15, .opc1 = 6, .crm = 14,
111
- .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_CONST,
112
- .resetvalue = 0 },
113
- { .name = "CNTHP_TVAL_EL2", .state = ARM_CP_STATE_BOTH,
114
- .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 0,
115
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
116
- { .name = "CNTHP_CTL_EL2", .state = ARM_CP_STATE_BOTH,
117
- .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 1,
118
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
119
- { .name = "MDCR_EL2", .state = ARM_CP_STATE_BOTH,
120
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 1,
121
- .access = PL2_RW, .accessfn = access_tda,
122
- .type = ARM_CP_CONST, .resetvalue = 0 },
123
- { .name = "HPFAR_EL2", .state = ARM_CP_STATE_BOTH,
124
- .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 4,
125
- .access = PL2_RW, .accessfn = access_el3_aa32ns,
126
- .type = ARM_CP_CONST, .resetvalue = 0 },
127
- { .name = "HSTR_EL2", .state = ARM_CP_STATE_BOTH,
128
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 3,
129
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
130
- { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH,
131
- .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0,
132
- .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
133
- { .name = "HIFAR", .state = ARM_CP_STATE_AA32,
134
- .type = ARM_CP_CONST,
135
- .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 2,
136
- .access = PL2_RW, .resetvalue = 0 },
137
-};
138
-
139
-/* Ditto, but for registers which exist in ARMv8 but not v7 */
140
-static const ARMCPRegInfo el3_no_el2_v8_cp_reginfo[] = {
141
- { .name = "HCR2", .state = ARM_CP_STATE_AA32,
142
- .cp = 15, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 4,
143
- .access = PL2_RW,
144
- .type = ARM_CP_CONST, .resetvalue = 0 },
145
-};
146
-
147
static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
148
{
149
ARMCPU *cpu = env_archcpu(env);
150
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
151
define_arm_cp_regs(cpu, v8_idregs);
152
define_arm_cp_regs(cpu, v8_cp_reginfo);
153
}
154
- if (arm_feature(env, ARM_FEATURE_EL2)) {
155
+
156
+ /*
157
+ * Register the base EL2 cpregs.
158
+ * Pre v8, these registers are implemented only as part of the
159
+ * Virtualization Extensions (EL2 present). Beginning with v8,
160
+ * if EL2 is missing but EL3 is enabled, mostly these become
161
+ * RES0 from EL3, with some specific exceptions.
162
+ */
163
+ if (arm_feature(env, ARM_FEATURE_EL2)
164
+ || (arm_feature(env, ARM_FEATURE_EL3)
165
+ && arm_feature(env, ARM_FEATURE_V8))) {
166
uint64_t vmpidr_def = mpidr_read_val(env);
167
ARMCPRegInfo vpidr_regs[] = {
168
{ .name = "VPIDR", .state = ARM_CP_STATE_AA32,
169
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
170
};
171
define_one_arm_cp_reg(cpu, &rvbar);
172
}
173
- } else {
174
- /* If EL2 is missing but higher ELs are enabled, we need to
175
- * register the no_el2 reginfos.
176
- */
177
- if (arm_feature(env, ARM_FEATURE_EL3)) {
178
- /* When EL3 exists but not EL2, VPIDR and VMPIDR take the value
179
- * of MIDR_EL1 and MPIDR_EL1.
180
- */
181
- ARMCPRegInfo vpidr_regs[] = {
182
- { .name = "VPIDR_EL2", .state = ARM_CP_STATE_BOTH,
183
- .opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0,
184
- .access = PL2_RW, .accessfn = access_el3_aa32ns,
185
- .type = ARM_CP_CONST, .resetvalue = cpu->midr,
186
- .fieldoffset = offsetof(CPUARMState, cp15.vpidr_el2) },
187
- { .name = "VMPIDR_EL2", .state = ARM_CP_STATE_BOTH,
188
- .opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5,
189
- .access = PL2_RW, .accessfn = access_el3_aa32ns,
190
- .type = ARM_CP_NO_RAW,
191
- .writefn = arm_cp_write_ignore, .readfn = mpidr_read },
192
- };
193
- define_arm_cp_regs(cpu, vpidr_regs);
194
- define_arm_cp_regs(cpu, el3_no_el2_cp_reginfo);
195
- if (arm_feature(env, ARM_FEATURE_V8)) {
196
- define_arm_cp_regs(cpu, el3_no_el2_v8_cp_reginfo);
197
- }
198
- }
199
}
200
+
201
+ /* Register the base EL3 cpregs. */
202
if (arm_feature(env, ARM_FEATURE_EL3)) {
203
define_arm_cp_regs(cpu, el3_cp_reginfo);
204
ARMCPRegInfo el3_regs[] = {
205
--
206
2.25.1
diff view generated by jsdifflib
New patch
[PULL 04/32] target/arm: Merge zcr reginfo
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Drop zcr_no_el2_reginfo and merge the 3 registers into one array,
4
now that ZCR_EL2 can be squashed to RES0 and ZCR_EL3 dropped
5
while registering.
6
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20220506180242.216785-4-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
target/arm/helper.c | 55 ++++++++++++++-------------------------------
13
1 file changed, 17 insertions(+), 38 deletions(-)
14
15
diff --git a/target/arm/helper.c b/target/arm/helper.c
16
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/helper.c
18
+++ b/target/arm/helper.c
19
@@ -XXX,XX +XXX,XX @@ static void zcr_write(CPUARMState *env, const ARMCPRegInfo *ri,
20
}
21
}
22
23
-static const ARMCPRegInfo zcr_el1_reginfo = {
24
- .name = "ZCR_EL1", .state = ARM_CP_STATE_AA64,
25
- .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 0,
26
- .access = PL1_RW, .type = ARM_CP_SVE,
27
- .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[1]),
28
- .writefn = zcr_write, .raw_writefn = raw_write
29
-};
30
-
31
-static const ARMCPRegInfo zcr_el2_reginfo = {
32
- .name = "ZCR_EL2", .state = ARM_CP_STATE_AA64,
33
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 0,
34
- .access = PL2_RW, .type = ARM_CP_SVE,
35
- .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[2]),
36
- .writefn = zcr_write, .raw_writefn = raw_write
37
-};
38
-
39
-static const ARMCPRegInfo zcr_no_el2_reginfo = {
40
- .name = "ZCR_EL2", .state = ARM_CP_STATE_AA64,
41
- .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 0,
42
- .access = PL2_RW, .type = ARM_CP_SVE,
43
- .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore
44
-};
45
-
46
-static const ARMCPRegInfo zcr_el3_reginfo = {
47
- .name = "ZCR_EL3", .state = ARM_CP_STATE_AA64,
48
- .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 2, .opc2 = 0,
49
- .access = PL3_RW, .type = ARM_CP_SVE,
50
- .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[3]),
51
- .writefn = zcr_write, .raw_writefn = raw_write
52
+static const ARMCPRegInfo zcr_reginfo[] = {
53
+ { .name = "ZCR_EL1", .state = ARM_CP_STATE_AA64,
54
+ .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 0,
55
+ .access = PL1_RW, .type = ARM_CP_SVE,
56
+ .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[1]),
57
+ .writefn = zcr_write, .raw_writefn = raw_write },
58
+ { .name = "ZCR_EL2", .state = ARM_CP_STATE_AA64,
59
+ .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 0,
60
+ .access = PL2_RW, .type = ARM_CP_SVE,
61
+ .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[2]),
62
+ .writefn = zcr_write, .raw_writefn = raw_write },
63
+ { .name = "ZCR_EL3", .state = ARM_CP_STATE_AA64,
64
+ .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 2, .opc2 = 0,
65
+ .access = PL3_RW, .type = ARM_CP_SVE,
66
+ .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[3]),
67
+ .writefn = zcr_write, .raw_writefn = raw_write },
68
};
69
70
void hw_watchpoint_update(ARMCPU *cpu, int n)
71
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
72
}
73
74
if (cpu_isar_feature(aa64_sve, cpu)) {
75
- define_one_arm_cp_reg(cpu, &zcr_el1_reginfo);
76
- if (arm_feature(env, ARM_FEATURE_EL2)) {
77
- define_one_arm_cp_reg(cpu, &zcr_el2_reginfo);
78
- } else {
79
- define_one_arm_cp_reg(cpu, &zcr_no_el2_reginfo);
80
- }
81
- if (arm_feature(env, ARM_FEATURE_EL3)) {
82
- define_one_arm_cp_reg(cpu, &zcr_el3_reginfo);
83
- }
84
+ define_arm_cp_regs(cpu, zcr_reginfo);
85
}
86
87
#ifdef TARGET_AARCH64
88
--
89
2.25.1
diff view generated by jsdifflib
New patch
[PULL 05/32] target/arm: Adjust definition of CONTEXTIDR_EL2
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
This register is present for either VHE or Debugv8p2.
4
5
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Message-id: 20220506180242.216785-5-richard.henderson@linaro.org
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
---
10
target/arm/helper.c | 15 +++++++++++----
11
1 file changed, 11 insertions(+), 4 deletions(-)
12
13
diff --git a/target/arm/helper.c b/target/arm/helper.c
14
index XXXXXXX..XXXXXXX 100644
15
--- a/target/arm/helper.c
16
+++ b/target/arm/helper.c
17
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo jazelle_regs[] = {
18
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
19
};
20
21
+static const ARMCPRegInfo contextidr_el2 = {
22
+ .name = "CONTEXTIDR_EL2", .state = ARM_CP_STATE_AA64,
23
+ .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 1,
24
+ .access = PL2_RW,
25
+ .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el[2])
26
+};
27
+
28
static const ARMCPRegInfo vhe_reginfo[] = {
29
- { .name = "CONTEXTIDR_EL2", .state = ARM_CP_STATE_AA64,
30
- .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 1,
31
- .access = PL2_RW,
32
- .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el[2]) },
33
{ .name = "TTBR1_EL2", .state = ARM_CP_STATE_AA64,
34
.opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 1,
35
.access = PL2_RW, .writefn = vmsa_tcr_ttbr_el2_write,
36
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
37
define_one_arm_cp_reg(cpu, &ssbs_reginfo);
38
}
39
40
+ if (cpu_isar_feature(aa64_vh, cpu) ||
41
+ cpu_isar_feature(aa64_debugv8p2, cpu)) {
42
+ define_one_arm_cp_reg(cpu, &contextidr_el2);
43
+ }
44
if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) {
45
define_arm_cp_regs(cpu, vhe_reginfo);
46
}
47
--
48
2.25.1
diff view generated by jsdifflib
New patch
[PULL 06/32] target/arm: Move cortex impdef sysregs to cpu_tcg.c
1
1
From: Richard Henderson <richard.henderson@linaro.org>
2
3
Previously we were defining some of these in user-only mode,
4
but none of them are accessible from user-only, therefore
5
define them only in system mode.
6
7
This will shortly be used from cpu_tcg.c also.
8
9
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
11
Message-id: 20220506180242.216785-6-richard.henderson@linaro.org
12
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
13
---
14
target/arm/internals.h | 6 ++++
15
target/arm/cpu64.c | 64 +++---------------------------------------
16
target/arm/cpu_tcg.c | 59 ++++++++++++++++++++++++++++++++++++++
17
3 files changed, 69 insertions(+), 60 deletions(-)
18
19
diff --git a/target/arm/internals.h b/target/arm/internals.h
20
index XXXXXXX..XXXXXXX 100644
21
--- a/target/arm/internals.h
22
+++ b/target/arm/internals.h
23
@@ -XXX,XX +XXX,XX @@ int aarch64_fpu_gdb_get_reg(CPUARMState *env, GByteArray *buf, int reg);
24
int aarch64_fpu_gdb_set_reg(CPUARMState *env, uint8_t *buf, int reg);
25
#endif
26
27
+#ifdef CONFIG_USER_ONLY
28
+static inline void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu) { }
29
+#else
30
+void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu);
31
+#endif
32
+
33
#endif
34
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
35
index XXXXXXX..XXXXXXX 100644
36
--- a/target/arm/cpu64.c
37
+++ b/target/arm/cpu64.c
38
@@ -XXX,XX +XXX,XX @@
39
#include "hvf_arm.h"
40
#include "qapi/visitor.h"
41
#include "hw/qdev-properties.h"
42
-#include "cpregs.h"
43
+#include "internals.h"
44
45
46
-#ifndef CONFIG_USER_ONLY
47
-static uint64_t a57_a53_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
48
-{
49
- ARMCPU *cpu = env_archcpu(env);
50
-
51
- /* Number of cores is in [25:24]; otherwise we RAZ */
52
- return (cpu->core_count - 1) << 24;
53
-}
54
-#endif
55
-
56
-static const ARMCPRegInfo cortex_a72_a57_a53_cp_reginfo[] = {
57
-#ifndef CONFIG_USER_ONLY
58
- { .name = "L2CTLR_EL1", .state = ARM_CP_STATE_AA64,
59
- .opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 2,
60
- .access = PL1_RW, .readfn = a57_a53_l2ctlr_read,
61
- .writefn = arm_cp_write_ignore },
62
- { .name = "L2CTLR",
63
- .cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 2,
64
- .access = PL1_RW, .readfn = a57_a53_l2ctlr_read,
65
- .writefn = arm_cp_write_ignore },
66
-#endif
67
- { .name = "L2ECTLR_EL1", .state = ARM_CP_STATE_AA64,
68
- .opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 3,
69
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
70
- { .name = "L2ECTLR",
71
- .cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 3,
72
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
73
- { .name = "L2ACTLR", .state = ARM_CP_STATE_BOTH,
74
- .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 0, .opc2 = 0,
75
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
76
- { .name = "CPUACTLR_EL1", .state = ARM_CP_STATE_AA64,
77
- .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 0,
78
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
79
- { .name = "CPUACTLR",
80
- .cp = 15, .opc1 = 0, .crm = 15,
81
- .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
82
- { .name = "CPUECTLR_EL1", .state = ARM_CP_STATE_AA64,
83
- .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 1,
84
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
85
- { .name = "CPUECTLR",
86
- .cp = 15, .opc1 = 1, .crm = 15,
87
- .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
88
- { .name = "CPUMERRSR_EL1", .state = ARM_CP_STATE_AA64,
89
- .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 2,
90
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
91
- { .name = "CPUMERRSR",
92
- .cp = 15, .opc1 = 2, .crm = 15,
93
- .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
94
- { .name = "L2MERRSR_EL1", .state = ARM_CP_STATE_AA64,
95
- .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 3,
96
- .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
97
- { .name = "L2MERRSR",
98
- .cp = 15, .opc1 = 3, .crm = 15,
99
- .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
100
-};
101
-
102
static void aarch64_a57_initfn(Object *obj)
103
{
104
ARMCPU *cpu = ARM_CPU(obj);
105
@@ -XXX,XX +XXX,XX @@ static void aarch64_a57_initfn(Object *obj)
106
cpu->gic_num_lrs = 4;
107
cpu->gic_vpribits = 5;
108
cpu->gic_vprebits = 5;
109
- define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
110
+ define_cortex_a72_a57_a53_cp_reginfo(cpu);
111
}
112
113
static void aarch64_a53_initfn(Object *obj)
114
@@ -XXX,XX +XXX,XX @@ static void aarch64_a53_initfn(Object *obj)
115
cpu->gic_num_lrs = 4;
116
cpu->gic_vpribits = 5;
117
cpu->gic_vprebits = 5;
118
- define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
119
+ define_cortex_a72_a57_a53_cp_reginfo(cpu);
120
}
121
122
static void aarch64_a72_initfn(Object *obj)
123
@@ -XXX,XX +XXX,XX @@ static void aarch64_a72_initfn(Object *obj)
124
cpu->gic_num_lrs = 4;
125
cpu->gic_vpribits = 5;
126
cpu->gic_vprebits = 5;
127
- define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
128
+ define_cortex_a72_a57_a53_cp_reginfo(cpu);
129
}
130
131
void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp)
132
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
133
index XXXXXXX..XXXXXXX 100644
134
--- a/target/arm/cpu_tcg.c
135
+++ b/target/arm/cpu_tcg.c
136
@@ -XXX,XX +XXX,XX @@
137
#endif
138
#include "cpregs.h"
139
140
+#ifndef CONFIG_USER_ONLY
141
+static uint64_t l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
142
+{
143
+ ARMCPU *cpu = env_archcpu(env);
144
+
145
+ /* Number of cores is in [25:24]; otherwise we RAZ */
146
+ return (cpu->core_count - 1) << 24;
147
+}
148
+
149
+static const ARMCPRegInfo cortex_a72_a57_a53_cp_reginfo[] = {
150
+ { .name = "L2CTLR_EL1", .state = ARM_CP_STATE_AA64,
151
+ .opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 2,
152
+ .access = PL1_RW, .readfn = l2ctlr_read,
153
+ .writefn = arm_cp_write_ignore },
154
+ { .name = "L2CTLR",
155
+ .cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 2,
156
+ .access = PL1_RW, .readfn = l2ctlr_read,
157
+ .writefn = arm_cp_write_ignore },
158
+ { .name = "L2ECTLR_EL1", .state = ARM_CP_STATE_AA64,
159
+ .opc0 = 3, .opc1 = 1, .crn = 11, .crm = 0, .opc2 = 3,
160
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
161
+ { .name = "L2ECTLR",
162
+ .cp = 15, .opc1 = 1, .crn = 9, .crm = 0, .opc2 = 3,
163
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
164
+ { .name = "L2ACTLR", .state = ARM_CP_STATE_BOTH,
165
+ .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 0, .opc2 = 0,
166
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
167
+ { .name = "CPUACTLR_EL1", .state = ARM_CP_STATE_AA64,
168
+ .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 0,
169
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
170
+ { .name = "CPUACTLR",
171
+ .cp = 15, .opc1 = 0, .crm = 15,
172
+ .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
173
+ { .name = "CPUECTLR_EL1", .state = ARM_CP_STATE_AA64,
174
+ .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 1,
175
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
176
+ { .name = "CPUECTLR",
177
+ .cp = 15, .opc1 = 1, .crm = 15,
178
+ .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
179
+ { .name = "CPUMERRSR_EL1", .state = ARM_CP_STATE_AA64,
180
+ .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 2,
181
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
182
+ { .name = "CPUMERRSR",
183
+ .cp = 15, .opc1 = 2, .crm = 15,
184
+ .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
185
+ { .name = "L2MERRSR_EL1", .state = ARM_CP_STATE_AA64,
186
+ .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 2, .opc2 = 3,
187
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
188
+ { .name = "L2MERRSR",
189
+ .cp = 15, .opc1 = 3, .crm = 15,
190
+ .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
191
+};
192
+
193
+void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu)
194
+{
195
+ define_arm_cp_regs(cpu, cortex_a72_a57_a53_cp_reginfo);
196
+}
197
+#endif /* !CONFIG_USER_ONLY */
198
+
199
/* CPU models. These are not needed for the AArch64 linux-user build. */
200
#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
201
202
--
203
2.25.1
diff view generated by jsdifflib
New patch
[PULL 07/32] target/arm: Update qemu-system-arm -cpu max to cortex-a57
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Instead of starting with cortex-a15 and adding v8 features to
4
a v7 cpu, begin with a v8 cpu stripped of its aarch64 features.
5
This fixes the long-standing to-do where we only enabled v8
6
features for user-only.
7
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10
Message-id: 20220506180242.216785-7-richard.henderson@linaro.org
11
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
12
---
13
target/arm/cpu_tcg.c | 151 ++++++++++++++++++++++++++-----------------
14
1 file changed, 92 insertions(+), 59 deletions(-)
15
16
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
17
index XXXXXXX..XXXXXXX 100644
18
--- a/target/arm/cpu_tcg.c
19
+++ b/target/arm/cpu_tcg.c
20
@@ -XXX,XX +XXX,XX @@ static void arm_v7m_class_init(ObjectClass *oc, void *data)
21
static void arm_max_initfn(Object *obj)
22
{
23
ARMCPU *cpu = ARM_CPU(obj);
24
+ uint32_t t;
25
26
- cortex_a15_initfn(obj);
27
+ /* aarch64_a57_initfn, advertising none of the aarch64 features */
28
+ cpu->dtb_compatible = "arm,cortex-a57";
29
+ set_feature(&cpu->env, ARM_FEATURE_V8);
30
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
31
+ set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
32
+ set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
33
+ set_feature(&cpu->env, ARM_FEATURE_EL2);
34
+ set_feature(&cpu->env, ARM_FEATURE_EL3);
35
+ set_feature(&cpu->env, ARM_FEATURE_PMU);
36
+ cpu->midr = 0x411fd070;
37
+ cpu->revidr = 0x00000000;
38
+ cpu->reset_fpsid = 0x41034070;
39
+ cpu->isar.mvfr0 = 0x10110222;
40
+ cpu->isar.mvfr1 = 0x12111111;
41
+ cpu->isar.mvfr2 = 0x00000043;
42
+ cpu->ctr = 0x8444c004;
43
+ cpu->reset_sctlr = 0x00c50838;
44
+ cpu->isar.id_pfr0 = 0x00000131;
45
+ cpu->isar.id_pfr1 = 0x00011011;
46
+ cpu->isar.id_dfr0 = 0x03010066;
47
+ cpu->id_afr0 = 0x00000000;
48
+ cpu->isar.id_mmfr0 = 0x10101105;
49
+ cpu->isar.id_mmfr1 = 0x40000000;
50
+ cpu->isar.id_mmfr2 = 0x01260000;
51
+ cpu->isar.id_mmfr3 = 0x02102211;
52
+ cpu->isar.id_isar0 = 0x02101110;
53
+ cpu->isar.id_isar1 = 0x13112111;
54
+ cpu->isar.id_isar2 = 0x21232042;
55
+ cpu->isar.id_isar3 = 0x01112131;
56
+ cpu->isar.id_isar4 = 0x00011142;
57
+ cpu->isar.id_isar5 = 0x00011121;
58
+ cpu->isar.id_isar6 = 0;
59
+ cpu->isar.dbgdidr = 0x3516d000;
60
+ cpu->clidr = 0x0a200023;
61
+ cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
62
+ cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
63
+ cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
64
+ define_cortex_a72_a57_a53_cp_reginfo(cpu);
65
66
- /* old-style VFP short-vector support */
67
- cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1);
68
+ /* Add additional features supported by QEMU */
69
+ t = cpu->isar.id_isar5;
70
+ t = FIELD_DP32(t, ID_ISAR5, AES, 2);
71
+ t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
72
+ t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
73
+ t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
74
+ t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
75
+ t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
76
+ cpu->isar.id_isar5 = t;
77
+
78
+ t = cpu->isar.id_isar6;
79
+ t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
80
+ t = FIELD_DP32(t, ID_ISAR6, DP, 1);
81
+ t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
82
+ t = FIELD_DP32(t, ID_ISAR6, SB, 1);
83
+ t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
84
+ t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
85
+ t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
86
+ cpu->isar.id_isar6 = t;
87
+
88
+ t = cpu->isar.mvfr1;
89
+ t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
90
+ t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
91
+ cpu->isar.mvfr1 = t;
92
+
93
+ t = cpu->isar.mvfr2;
94
+ t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
95
+ t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
96
+ cpu->isar.mvfr2 = t;
97
+
98
+ t = cpu->isar.id_mmfr3;
99
+ t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
100
+ cpu->isar.id_mmfr3 = t;
101
+
102
+ t = cpu->isar.id_mmfr4;
103
+ t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
104
+ t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
105
+ t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
106
+ t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
107
+ cpu->isar.id_mmfr4 = t;
108
+
109
+ t = cpu->isar.id_pfr0;
110
+ t = FIELD_DP32(t, ID_PFR0, DIT, 1);
111
+ cpu->isar.id_pfr0 = t;
112
+
113
+ t = cpu->isar.id_pfr2;
114
+ t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
115
+ cpu->isar.id_pfr2 = t;
116
117
#ifdef CONFIG_USER_ONLY
118
/*
119
- * We don't set these in system emulation mode for the moment,
120
- * since we don't correctly set (all of) the ID registers to
121
- * advertise them.
122
+ * Break with true ARMv8 and add back old-style VFP short-vector support.
123
+ * Only do this for user-mode, where -cpu max is the default, so that
124
+ * older v6 and v7 programs are more likely to work without adjustment.
125
*/
126
- set_feature(&cpu->env, ARM_FEATURE_V8);
127
- {
128
- uint32_t t;
129
-
130
- t = cpu->isar.id_isar5;
131
- t = FIELD_DP32(t, ID_ISAR5, AES, 2);
132
- t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
133
- t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
134
- t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
135
- t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
136
- t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
137
- cpu->isar.id_isar5 = t;
138
-
139
- t = cpu->isar.id_isar6;
140
- t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
141
- t = FIELD_DP32(t, ID_ISAR6, DP, 1);
142
- t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
143
- t = FIELD_DP32(t, ID_ISAR6, SB, 1);
144
- t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
145
- t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
146
- t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
147
- cpu->isar.id_isar6 = t;
148
-
149
- t = cpu->isar.mvfr1;
150
- t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
151
- t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
152
- cpu->isar.mvfr1 = t;
153
-
154
- t = cpu->isar.mvfr2;
155
- t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
156
- t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
157
- cpu->isar.mvfr2 = t;
158
-
159
- t = cpu->isar.id_mmfr3;
160
- t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
161
- cpu->isar.id_mmfr3 = t;
162
-
163
- t = cpu->isar.id_mmfr4;
164
- t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
165
- t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
166
- t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
167
- t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
168
- cpu->isar.id_mmfr4 = t;
169
-
170
- t = cpu->isar.id_pfr0;
171
- t = FIELD_DP32(t, ID_PFR0, DIT, 1);
172
- cpu->isar.id_pfr0 = t;
173
-
174
- t = cpu->isar.id_pfr2;
175
- t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
176
- cpu->isar.id_pfr2 = t;
177
- }
178
-#endif /* CONFIG_USER_ONLY */
179
+ cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1);
180
+#endif
181
}
182
#endif /* !TARGET_AARCH64 */
183
184
--
185
2.25.1
diff view generated by jsdifflib
New patch
[PULL 08/32] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
We set this for qemu-system-aarch64, but failed to do so
4
for the strictly 32-bit emulation.
5
6
Fixes: 3bec78447a9 ("target/arm: Provide ARMv8.4-PMU in '-cpu max'")
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20220506180242.216785-8-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
target/arm/cpu_tcg.c | 4 ++++
13
1 file changed, 4 insertions(+)
14
15
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
16
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/cpu_tcg.c
18
+++ b/target/arm/cpu_tcg.c
19
@@ -XXX,XX +XXX,XX @@ static void arm_max_initfn(Object *obj)
20
t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
21
cpu->isar.id_pfr2 = t;
22
23
+ t = cpu->isar.id_dfr0;
24
+ t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
25
+ cpu->isar.id_dfr0 = t;
26
+
27
#ifdef CONFIG_USER_ONLY
28
/*
29
* Break with true ARMv8 and add back old-style VFP short-vector support.
30
--
31
2.25.1
diff view generated by jsdifflib
New patch
[PULL 09/32] target/arm: Split out aa32_max_features
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Share the code to set AArch32 max features so that we no
4
longer have code drift between qemu{-system,}-{arm,aarch64}.
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20220506180242.216785-9-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
target/arm/internals.h | 2 +
12
target/arm/cpu64.c | 50 +-----------------
13
target/arm/cpu_tcg.c | 114 ++++++++++++++++++++++-------------------
14
3 files changed, 65 insertions(+), 101 deletions(-)
15
16
diff --git a/target/arm/internals.h b/target/arm/internals.h
17
index XXXXXXX..XXXXXXX 100644
18
--- a/target/arm/internals.h
19
+++ b/target/arm/internals.h
20
@@ -XXX,XX +XXX,XX @@ static inline void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu) { }
21
void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu);
22
#endif
23
24
+void aa32_max_features(ARMCPU *cpu);
25
+
26
#endif
27
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
28
index XXXXXXX..XXXXXXX 100644
29
--- a/target/arm/cpu64.c
30
+++ b/target/arm/cpu64.c
31
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
32
{
33
ARMCPU *cpu = ARM_CPU(obj);
34
uint64_t t;
35
- uint32_t u;
36
37
if (kvm_enabled() || hvf_enabled()) {
38
/* With KVM or HVF, '-cpu max' is identical to '-cpu host' */
39
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
40
t = FIELD_DP64(t, ID_AA64ZFR0, F64MM, 1);
41
cpu->isar.id_aa64zfr0 = t;
42
43
- /* Replicate the same data to the 32-bit id registers. */
44
- u = cpu->isar.id_isar5;
45
- u = FIELD_DP32(u, ID_ISAR5, AES, 2); /* AES + PMULL */
46
- u = FIELD_DP32(u, ID_ISAR5, SHA1, 1);
47
- u = FIELD_DP32(u, ID_ISAR5, SHA2, 1);
48
- u = FIELD_DP32(u, ID_ISAR5, CRC32, 1);
49
- u = FIELD_DP32(u, ID_ISAR5, RDM, 1);
50
- u = FIELD_DP32(u, ID_ISAR5, VCMA, 1);
51
- cpu->isar.id_isar5 = u;
52
-
53
- u = cpu->isar.id_isar6;
54
- u = FIELD_DP32(u, ID_ISAR6, JSCVT, 1);
55
- u = FIELD_DP32(u, ID_ISAR6, DP, 1);
56
- u = FIELD_DP32(u, ID_ISAR6, FHM, 1);
57
- u = FIELD_DP32(u, ID_ISAR6, SB, 1);
58
- u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
59
- u = FIELD_DP32(u, ID_ISAR6, BF16, 1);
60
- u = FIELD_DP32(u, ID_ISAR6, I8MM, 1);
61
- cpu->isar.id_isar6 = u;
62
-
63
- u = cpu->isar.id_pfr0;
64
- u = FIELD_DP32(u, ID_PFR0, DIT, 1);
65
- cpu->isar.id_pfr0 = u;
66
-
67
- u = cpu->isar.id_pfr2;
68
- u = FIELD_DP32(u, ID_PFR2, SSBS, 1);
69
- cpu->isar.id_pfr2 = u;
70
-
71
- u = cpu->isar.id_mmfr3;
72
- u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */
73
- cpu->isar.id_mmfr3 = u;
74
-
75
- u = cpu->isar.id_mmfr4;
76
- u = FIELD_DP32(u, ID_MMFR4, HPDS, 1); /* AA32HPD */
77
- u = FIELD_DP32(u, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
78
- u = FIELD_DP32(u, ID_MMFR4, CNP, 1); /* TTCNP */
79
- u = FIELD_DP32(u, ID_MMFR4, XNX, 1); /* TTS2UXN */
80
- cpu->isar.id_mmfr4 = u;
81
-
82
t = cpu->isar.id_aa64dfr0;
83
t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
84
cpu->isar.id_aa64dfr0 = t;
85
86
- u = cpu->isar.id_dfr0;
87
- u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
88
- cpu->isar.id_dfr0 = u;
89
-
90
- u = cpu->isar.mvfr1;
91
- u = FIELD_DP32(u, MVFR1, FPHP, 3); /* v8.2-FP16 */
92
- u = FIELD_DP32(u, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
93
- cpu->isar.mvfr1 = u;
94
+ /* Replicate the same data to the 32-bit id registers. */
95
+ aa32_max_features(cpu);
96
97
#ifdef CONFIG_USER_ONLY
98
/*
99
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
100
index XXXXXXX..XXXXXXX 100644
101
--- a/target/arm/cpu_tcg.c
102
+++ b/target/arm/cpu_tcg.c
103
@@ -XXX,XX +XXX,XX @@
104
#endif
105
#include "cpregs.h"
106
107
+
108
+/* Share AArch32 -cpu max features with AArch64. */
109
+void aa32_max_features(ARMCPU *cpu)
110
+{
111
+ uint32_t t;
112
+
113
+ /* Add additional features supported by QEMU */
114
+ t = cpu->isar.id_isar5;
115
+ t = FIELD_DP32(t, ID_ISAR5, AES, 2);
116
+ t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
117
+ t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
118
+ t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
119
+ t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
120
+ t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
121
+ cpu->isar.id_isar5 = t;
122
+
123
+ t = cpu->isar.id_isar6;
124
+ t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
125
+ t = FIELD_DP32(t, ID_ISAR6, DP, 1);
126
+ t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
127
+ t = FIELD_DP32(t, ID_ISAR6, SB, 1);
128
+ t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
129
+ t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
130
+ t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
131
+ cpu->isar.id_isar6 = t;
132
+
133
+ t = cpu->isar.mvfr1;
134
+ t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
135
+ t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
136
+ cpu->isar.mvfr1 = t;
137
+
138
+ t = cpu->isar.mvfr2;
139
+ t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
140
+ t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
141
+ cpu->isar.mvfr2 = t;
142
+
143
+ t = cpu->isar.id_mmfr3;
144
+ t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
145
+ cpu->isar.id_mmfr3 = t;
146
+
147
+ t = cpu->isar.id_mmfr4;
148
+ t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
149
+ t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
150
+ t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
151
+ t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
152
+ cpu->isar.id_mmfr4 = t;
153
+
154
+ t = cpu->isar.id_pfr0;
155
+ t = FIELD_DP32(t, ID_PFR0, DIT, 1);
156
+ cpu->isar.id_pfr0 = t;
157
+
158
+ t = cpu->isar.id_pfr2;
159
+ t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
160
+ cpu->isar.id_pfr2 = t;
161
+
162
+ t = cpu->isar.id_dfr0;
163
+ t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
164
+ cpu->isar.id_dfr0 = t;
165
+}
166
+
167
#ifndef CONFIG_USER_ONLY
168
static uint64_t l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
169
{
170
@@ -XXX,XX +XXX,XX @@ static void arm_v7m_class_init(ObjectClass *oc, void *data)
171
static void arm_max_initfn(Object *obj)
172
{
173
ARMCPU *cpu = ARM_CPU(obj);
174
- uint32_t t;
175
176
/* aarch64_a57_initfn, advertising none of the aarch64 features */
177
cpu->dtb_compatible = "arm,cortex-a57";
178
@@ -XXX,XX +XXX,XX @@ static void arm_max_initfn(Object *obj)
179
cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
180
define_cortex_a72_a57_a53_cp_reginfo(cpu);
181
182
- /* Add additional features supported by QEMU */
183
- t = cpu->isar.id_isar5;
184
- t = FIELD_DP32(t, ID_ISAR5, AES, 2);
185
- t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
186
- t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
187
- t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
188
- t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
189
- t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
190
- cpu->isar.id_isar5 = t;
191
-
192
- t = cpu->isar.id_isar6;
193
- t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
194
- t = FIELD_DP32(t, ID_ISAR6, DP, 1);
195
- t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
196
- t = FIELD_DP32(t, ID_ISAR6, SB, 1);
197
- t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
198
- t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
199
- t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
200
- cpu->isar.id_isar6 = t;
201
-
202
- t = cpu->isar.mvfr1;
203
- t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
204
- t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
205
- cpu->isar.mvfr1 = t;
206
-
207
- t = cpu->isar.mvfr2;
208
- t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
209
- t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
210
- cpu->isar.mvfr2 = t;
211
-
212
- t = cpu->isar.id_mmfr3;
213
- t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
214
- cpu->isar.id_mmfr3 = t;
215
-
216
- t = cpu->isar.id_mmfr4;
217
- t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
218
- t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
219
- t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
220
- t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
221
- cpu->isar.id_mmfr4 = t;
222
-
223
- t = cpu->isar.id_pfr0;
224
- t = FIELD_DP32(t, ID_PFR0, DIT, 1);
225
- cpu->isar.id_pfr0 = t;
226
-
227
- t = cpu->isar.id_pfr2;
228
- t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
229
- cpu->isar.id_pfr2 = t;
230
-
231
- t = cpu->isar.id_dfr0;
232
- t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
233
- cpu->isar.id_dfr0 = t;
234
+ aa32_max_features(cpu);
235
236
#ifdef CONFIG_USER_ONLY
237
/*
238
--
239
2.25.1
diff view generated by jsdifflib
New patch
[PULL 10/32] target/arm: Annotate arm_max_initfn with FEAT identifiers
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Update the legacy feature names to the current names.
4
Provide feature names for id changes that were not marked.
5
Sort the field updates into increasing bitfield order.
6
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20220506180242.216785-10-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
target/arm/cpu64.c | 100 +++++++++++++++++++++----------------------
13
target/arm/cpu_tcg.c | 48 ++++++++++-----------
14
2 files changed, 74 insertions(+), 74 deletions(-)
15
16
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
17
index XXXXXXX..XXXXXXX 100644
18
--- a/target/arm/cpu64.c
19
+++ b/target/arm/cpu64.c
20
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
21
cpu->midr = t;
22
23
t = cpu->isar.id_aa64isar0;
24
- t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2); /* AES + PMULL */
25
- t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1);
26
- t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2); /* SHA512 */
27
+ t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2); /* FEAT_PMULL */
28
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1); /* FEAT_SHA1 */
29
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 2); /* FEAT_SHA512 */
30
t = FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1);
31
- t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2);
32
- t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1);
33
- t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1);
34
- t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 1);
35
- t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 1);
36
- t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1);
37
- t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 1);
38
- t = FIELD_DP64(t, ID_AA64ISAR0, TS, 2); /* v8.5-CondM */
39
- t = FIELD_DP64(t, ID_AA64ISAR0, TLB, 2); /* FEAT_TLBIRANGE */
40
- t = FIELD_DP64(t, ID_AA64ISAR0, RNDR, 1);
41
+ t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2); /* FEAT_LSE */
42
+ t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1); /* FEAT_RDM */
43
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA3, 1); /* FEAT_SHA3 */
44
+ t = FIELD_DP64(t, ID_AA64ISAR0, SM3, 1); /* FEAT_SM3 */
45
+ t = FIELD_DP64(t, ID_AA64ISAR0, SM4, 1); /* FEAT_SM4 */
46
+ t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1); /* FEAT_DotProd */
47
+ t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 1); /* FEAT_FHM */
48
+ t = FIELD_DP64(t, ID_AA64ISAR0, TS, 2); /* FEAT_FlagM2 */
49
+ t = FIELD_DP64(t, ID_AA64ISAR0, TLB, 2); /* FEAT_TLBIRANGE */
50
+ t = FIELD_DP64(t, ID_AA64ISAR0, RNDR, 1); /* FEAT_RNG */
51
cpu->isar.id_aa64isar0 = t;
52
53
t = cpu->isar.id_aa64isar1;
54
- t = FIELD_DP64(t, ID_AA64ISAR1, DPB, 2);
55
- t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 1);
56
- t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1);
57
- t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1);
58
- t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1);
59
- t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1);
60
- t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1);
61
- t = FIELD_DP64(t, ID_AA64ISAR1, LRCPC, 2); /* ARMv8.4-RCPC */
62
- t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1);
63
+ t = FIELD_DP64(t, ID_AA64ISAR1, DPB, 2); /* FEAT_DPB2 */
64
+ t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 1); /* FEAT_JSCVT */
65
+ t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1); /* FEAT_FCMA */
66
+ t = FIELD_DP64(t, ID_AA64ISAR1, LRCPC, 2); /* FEAT_LRCPC2 */
67
+ t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1); /* FEAT_FRINTTS */
68
+ t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1); /* FEAT_SB */
69
+ t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1); /* FEAT_SPECRES */
70
+ t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1); /* FEAT_BF16 */
71
+ t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1); /* FEAT_I8MM */
72
cpu->isar.id_aa64isar1 = t;
73
74
t = cpu->isar.id_aa64pfr0;
75
+ t = FIELD_DP64(t, ID_AA64PFR0, FP, 1); /* FEAT_FP16 */
76
+ t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1); /* FEAT_FP16 */
77
t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
78
- t = FIELD_DP64(t, ID_AA64PFR0, FP, 1);
79
- t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
80
- t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1);
81
- t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1);
82
+ t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1); /* FEAT_SEL2 */
83
+ t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1); /* FEAT_DIT */
84
cpu->isar.id_aa64pfr0 = t;
85
86
t = cpu->isar.id_aa64pfr1;
87
- t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);
88
- t = FIELD_DP64(t, ID_AA64PFR1, SSBS, 2);
89
+ t = FIELD_DP64(t, ID_AA64PFR1, BT, 1); /* FEAT_BTI */
90
+ t = FIELD_DP64(t, ID_AA64PFR1, SSBS, 2); /* FEAT_SSBS2 */
91
/*
92
* Begin with full support for MTE. This will be downgraded to MTE=0
93
* during realize if the board provides no tag memory, much like
94
* we do for EL2 with the virtualization=on property.
95
*/
96
- t = FIELD_DP64(t, ID_AA64PFR1, MTE, 3);
97
+ t = FIELD_DP64(t, ID_AA64PFR1, MTE, 3); /* FEAT_MTE3 */
98
cpu->isar.id_aa64pfr1 = t;
99
100
t = cpu->isar.id_aa64mmfr0;
101
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
102
cpu->isar.id_aa64mmfr0 = t;
103
104
t = cpu->isar.id_aa64mmfr1;
105
- t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* HPD */
106
- t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1);
107
- t = FIELD_DP64(t, ID_AA64MMFR1, VH, 1);
108
- t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 2); /* ATS1E1 */
109
- t = FIELD_DP64(t, ID_AA64MMFR1, VMIDBITS, 2); /* VMID16 */
110
- t = FIELD_DP64(t, ID_AA64MMFR1, XNX, 1); /* TTS2UXN */
111
+ t = FIELD_DP64(t, ID_AA64MMFR1, VMIDBITS, 2); /* FEAT_VMID16 */
112
+ t = FIELD_DP64(t, ID_AA64MMFR1, VH, 1); /* FEAT_VHE */
113
+ t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* FEAT_HPDS */
114
+ t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1); /* FEAT_LOR */
115
+ t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 2); /* FEAT_PAN2 */
116
+ t = FIELD_DP64(t, ID_AA64MMFR1, XNX, 1); /* FEAT_XNX */
117
cpu->isar.id_aa64mmfr1 = t;
118
119
t = cpu->isar.id_aa64mmfr2;
120
- t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1);
121
- t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1); /* TTCNP */
122
- t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* TTST */
123
- t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1); /* FEAT_LVA */
124
- t = FIELD_DP64(t, ID_AA64MMFR2, TTL, 1); /* FEAT_TTL */
125
- t = FIELD_DP64(t, ID_AA64MMFR2, BBM, 2); /* FEAT_BBM at level 2 */
126
+ t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1); /* FEAT_TTCNP */
127
+ t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1); /* FEAT_UAO */
128
+ t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1); /* FEAT_LVA */
129
+ t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* FEAT_TTST */
130
+ t = FIELD_DP64(t, ID_AA64MMFR2, TTL, 1); /* FEAT_TTL */
131
+ t = FIELD_DP64(t, ID_AA64MMFR2, BBM, 2); /* FEAT_BBM at level 2 */
132
cpu->isar.id_aa64mmfr2 = t;
133
134
t = cpu->isar.id_aa64zfr0;
135
t = FIELD_DP64(t, ID_AA64ZFR0, SVEVER, 1);
136
- t = FIELD_DP64(t, ID_AA64ZFR0, AES, 2); /* PMULL */
137
- t = FIELD_DP64(t, ID_AA64ZFR0, BITPERM, 1);
138
- t = FIELD_DP64(t, ID_AA64ZFR0, BFLOAT16, 1);
139
- t = FIELD_DP64(t, ID_AA64ZFR0, SHA3, 1);
140
- t = FIELD_DP64(t, ID_AA64ZFR0, SM4, 1);
141
- t = FIELD_DP64(t, ID_AA64ZFR0, I8MM, 1);
142
- t = FIELD_DP64(t, ID_AA64ZFR0, F32MM, 1);
143
- t = FIELD_DP64(t, ID_AA64ZFR0, F64MM, 1);
144
+ t = FIELD_DP64(t, ID_AA64ZFR0, AES, 2); /* FEAT_SVE_PMULL128 */
145
+ t = FIELD_DP64(t, ID_AA64ZFR0, BITPERM, 1); /* FEAT_SVE_BitPerm */
146
+ t = FIELD_DP64(t, ID_AA64ZFR0, BFLOAT16, 1); /* FEAT_BF16 */
147
+ t = FIELD_DP64(t, ID_AA64ZFR0, SHA3, 1); /* FEAT_SVE_SHA3 */
148
+ t = FIELD_DP64(t, ID_AA64ZFR0, SM4, 1); /* FEAT_SVE_SM4 */
149
+ t = FIELD_DP64(t, ID_AA64ZFR0, I8MM, 1); /* FEAT_I8MM */
150
+ t = FIELD_DP64(t, ID_AA64ZFR0, F32MM, 1); /* FEAT_F32MM */
151
+ t = FIELD_DP64(t, ID_AA64ZFR0, F64MM, 1); /* FEAT_F64MM */
152
cpu->isar.id_aa64zfr0 = t;
153
154
t = cpu->isar.id_aa64dfr0;
155
- t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
156
+ t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* FEAT_PMUv3p4 */
157
cpu->isar.id_aa64dfr0 = t;
158
159
/* Replicate the same data to the 32-bit id registers. */
160
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
161
index XXXXXXX..XXXXXXX 100644
162
--- a/target/arm/cpu_tcg.c
163
+++ b/target/arm/cpu_tcg.c
164
@@ -XXX,XX +XXX,XX @@ void aa32_max_features(ARMCPU *cpu)
165
166
/* Add additional features supported by QEMU */
167
t = cpu->isar.id_isar5;
168
- t = FIELD_DP32(t, ID_ISAR5, AES, 2);
169
- t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
170
- t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
171
+ t = FIELD_DP32(t, ID_ISAR5, AES, 2); /* FEAT_PMULL */
172
+ t = FIELD_DP32(t, ID_ISAR5, SHA1, 1); /* FEAT_SHA1 */
173
+ t = FIELD_DP32(t, ID_ISAR5, SHA2, 1); /* FEAT_SHA256 */
174
t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
175
- t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
176
- t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
177
+ t = FIELD_DP32(t, ID_ISAR5, RDM, 1); /* FEAT_RDM */
178
+ t = FIELD_DP32(t, ID_ISAR5, VCMA, 1); /* FEAT_FCMA */
179
cpu->isar.id_isar5 = t;
180
181
t = cpu->isar.id_isar6;
182
- t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
183
- t = FIELD_DP32(t, ID_ISAR6, DP, 1);
184
- t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
185
- t = FIELD_DP32(t, ID_ISAR6, SB, 1);
186
- t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
187
- t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
188
- t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
189
+ t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1); /* FEAT_JSCVT */
190
+ t = FIELD_DP32(t, ID_ISAR6, DP, 1); /* Feat_DotProd */
191
+ t = FIELD_DP32(t, ID_ISAR6, FHM, 1); /* FEAT_FHM */
192
+ t = FIELD_DP32(t, ID_ISAR6, SB, 1); /* FEAT_SB */
193
+ t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1); /* FEAT_SPECRES */
194
+ t = FIELD_DP32(t, ID_ISAR6, BF16, 1); /* FEAT_AA32BF16 */
195
+ t = FIELD_DP32(t, ID_ISAR6, I8MM, 1); /* FEAT_AA32I8MM */
196
cpu->isar.id_isar6 = t;
197
198
t = cpu->isar.mvfr1;
199
- t = FIELD_DP32(t, MVFR1, FPHP, 3); /* v8.2-FP16 */
200
- t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* v8.2-FP16 */
201
+ t = FIELD_DP32(t, MVFR1, FPHP, 3); /* FEAT_FP16 */
202
+ t = FIELD_DP32(t, MVFR1, SIMDHP, 2); /* FEAT_FP16 */
203
cpu->isar.mvfr1 = t;
204
205
t = cpu->isar.mvfr2;
206
- t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
207
- t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
208
+ t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
209
+ t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */
210
cpu->isar.mvfr2 = t;
211
212
t = cpu->isar.id_mmfr3;
213
- t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
214
+ t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* FEAT_PAN2 */
215
cpu->isar.id_mmfr3 = t;
216
217
t = cpu->isar.id_mmfr4;
218
- t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
219
- t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
220
- t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
221
- t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
222
+ t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* FEAT_AA32HPD */
223
+ t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
224
+ t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* FEAT_TTCNP */
225
+ t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* FEAT_XNX*/
226
cpu->isar.id_mmfr4 = t;
227
228
t = cpu->isar.id_pfr0;
229
- t = FIELD_DP32(t, ID_PFR0, DIT, 1);
230
+ t = FIELD_DP32(t, ID_PFR0, DIT, 1); /* FEAT_DIT */
231
cpu->isar.id_pfr0 = t;
232
233
t = cpu->isar.id_pfr2;
234
- t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
235
+ t = FIELD_DP32(t, ID_PFR2, SSBS, 1); /* FEAT_SSBS */
236
cpu->isar.id_pfr2 = t;
237
238
t = cpu->isar.id_dfr0;
239
- t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
240
+ t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* FEAT_PMUv3p4 */
241
cpu->isar.id_dfr0 = t;
242
}
243
244
--
245
2.25.1
diff view generated by jsdifflib
New patch
[PULL 11/32] target/arm: Use field names for manipulating EL2 and EL3 modes
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Use FIELD_DP{32,64} to manipulate id_pfr1 and id_aa64pfr0
4
during arm_cpu_realizefn.
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20220506180242.216785-11-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
target/arm/cpu.c | 22 +++++++++++++---------
12
1 file changed, 13 insertions(+), 9 deletions(-)
13
14
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
15
index XXXXXXX..XXXXXXX 100644
16
--- a/target/arm/cpu.c
17
+++ b/target/arm/cpu.c
18
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
19
*/
20
unset_feature(env, ARM_FEATURE_EL3);
21
22
- /* Disable the security extension feature bits in the processor feature
23
- * registers as well. These are id_pfr1[7:4] and id_aa64pfr0[15:12].
24
+ /*
25
+ * Disable the security extension feature bits in the processor
26
+ * feature registers as well.
27
*/
28
- cpu->isar.id_pfr1 &= ~0xf0;
29
- cpu->isar.id_aa64pfr0 &= ~0xf000;
30
+ cpu->isar.id_pfr1 = FIELD_DP32(cpu->isar.id_pfr1, ID_PFR1, SECURITY, 0);
31
+ cpu->isar.id_aa64pfr0 = FIELD_DP64(cpu->isar.id_aa64pfr0,
32
+ ID_AA64PFR0, EL3, 0);
33
}
34
35
if (!cpu->has_el2) {
36
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
37
}
38
39
if (!arm_feature(env, ARM_FEATURE_EL2)) {
40
- /* Disable the hypervisor feature bits in the processor feature
41
- * registers if we don't have EL2. These are id_pfr1[15:12] and
42
- * id_aa64pfr0_el1[11:8].
43
+ /*
44
+ * Disable the hypervisor feature bits in the processor feature
45
+ * registers if we don't have EL2.
46
*/
47
- cpu->isar.id_aa64pfr0 &= ~0xf00;
48
- cpu->isar.id_pfr1 &= ~0xf000;
49
+ cpu->isar.id_aa64pfr0 = FIELD_DP64(cpu->isar.id_aa64pfr0,
50
+ ID_AA64PFR0, EL2, 0);
51
+ cpu->isar.id_pfr1 = FIELD_DP32(cpu->isar.id_pfr1,
52
+ ID_PFR1, VIRTUALIZATION, 0);
53
}
54
55
#ifndef CONFIG_USER_ONLY
56
--
57
2.25.1
diff view generated by jsdifflib
New patch
[PULL 12/32] target/arm: Enable FEAT_Debugv8p2 for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
The only portion of FEAT_Debugv8p2 that is relevant to QEMU
4
is CONTEXTIDR_EL2, which is also conditionally implemented
5
with FEAT_VHE. The rest of the debug extension concerns the
6
External debug interface, which is outside the scope of QEMU.
7
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10
Message-id: 20220506180242.216785-12-richard.henderson@linaro.org
11
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
12
---
13
docs/system/arm/emulation.rst | 1 +
14
target/arm/cpu.c | 1 +
15
target/arm/cpu64.c | 1 +
16
target/arm/cpu_tcg.c | 2 ++
17
4 files changed, 5 insertions(+)
18
19
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
20
index XXXXXXX..XXXXXXX 100644
21
--- a/docs/system/arm/emulation.rst
22
+++ b/docs/system/arm/emulation.rst
23
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
24
- FEAT_BTI (Branch Target Identification)
25
- FEAT_DIT (Data Independent Timing instructions)
26
- FEAT_DPB (DC CVAP instruction)
27
+- FEAT_Debugv8p2 (Debug changes for v8.2)
28
- FEAT_DotProd (Advanced SIMD dot product instructions)
29
- FEAT_FCMA (Floating-point complex number instructions)
30
- FEAT_FHM (Floating-point half-precision multiplication instructions)
31
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
32
index XXXXXXX..XXXXXXX 100644
33
--- a/target/arm/cpu.c
34
+++ b/target/arm/cpu.c
35
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
36
* feature registers as well.
37
*/
38
cpu->isar.id_pfr1 = FIELD_DP32(cpu->isar.id_pfr1, ID_PFR1, SECURITY, 0);
39
+ cpu->isar.id_dfr0 = FIELD_DP32(cpu->isar.id_dfr0, ID_DFR0, COPSDBG, 0);
40
cpu->isar.id_aa64pfr0 = FIELD_DP64(cpu->isar.id_aa64pfr0,
41
ID_AA64PFR0, EL3, 0);
42
}
43
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
44
index XXXXXXX..XXXXXXX 100644
45
--- a/target/arm/cpu64.c
46
+++ b/target/arm/cpu64.c
47
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
48
cpu->isar.id_aa64zfr0 = t;
49
50
t = cpu->isar.id_aa64dfr0;
51
+ t = FIELD_DP64(t, ID_AA64DFR0, DEBUGVER, 8); /* FEAT_Debugv8p2 */
52
t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* FEAT_PMUv3p4 */
53
cpu->isar.id_aa64dfr0 = t;
54
55
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
56
index XXXXXXX..XXXXXXX 100644
57
--- a/target/arm/cpu_tcg.c
58
+++ b/target/arm/cpu_tcg.c
59
@@ -XXX,XX +XXX,XX @@ void aa32_max_features(ARMCPU *cpu)
60
cpu->isar.id_pfr2 = t;
61
62
t = cpu->isar.id_dfr0;
63
+ t = FIELD_DP32(t, ID_DFR0, COPDBG, 8); /* FEAT_Debugv8p2 */
64
+ t = FIELD_DP32(t, ID_DFR0, COPSDBG, 8); /* FEAT_Debugv8p2 */
65
t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* FEAT_PMUv3p4 */
66
cpu->isar.id_dfr0 = t;
67
}
68
--
69
2.25.1
diff view generated by jsdifflib
New patch
[PULL 13/32] target/arm: Enable FEAT_Debugv8p4 for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
This extension concerns changes to the External Debug interface,
4
with Secure and Non-secure access to the debug registers, and all
5
of it is outside the scope of QEMU. Indicating support for this
6
is mandatory with FEAT_SEL2, which we do implement.
7
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10
Message-id: 20220506180242.216785-13-richard.henderson@linaro.org
11
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
12
---
13
docs/system/arm/emulation.rst | 1 +
14
target/arm/cpu64.c | 2 +-
15
target/arm/cpu_tcg.c | 4 ++--
16
3 files changed, 4 insertions(+), 3 deletions(-)
17
18
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
19
index XXXXXXX..XXXXXXX 100644
20
--- a/docs/system/arm/emulation.rst
21
+++ b/docs/system/arm/emulation.rst
22
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
23
- FEAT_DIT (Data Independent Timing instructions)
24
- FEAT_DPB (DC CVAP instruction)
25
- FEAT_Debugv8p2 (Debug changes for v8.2)
26
+- FEAT_Debugv8p4 (Debug changes for v8.4)
27
- FEAT_DotProd (Advanced SIMD dot product instructions)
28
- FEAT_FCMA (Floating-point complex number instructions)
29
- FEAT_FHM (Floating-point half-precision multiplication instructions)
30
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
31
index XXXXXXX..XXXXXXX 100644
32
--- a/target/arm/cpu64.c
33
+++ b/target/arm/cpu64.c
34
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
35
cpu->isar.id_aa64zfr0 = t;
36
37
t = cpu->isar.id_aa64dfr0;
38
- t = FIELD_DP64(t, ID_AA64DFR0, DEBUGVER, 8); /* FEAT_Debugv8p2 */
39
+ t = FIELD_DP64(t, ID_AA64DFR0, DEBUGVER, 9); /* FEAT_Debugv8p4 */
40
t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* FEAT_PMUv3p4 */
41
cpu->isar.id_aa64dfr0 = t;
42
43
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
44
index XXXXXXX..XXXXXXX 100644
45
--- a/target/arm/cpu_tcg.c
46
+++ b/target/arm/cpu_tcg.c
47
@@ -XXX,XX +XXX,XX @@ void aa32_max_features(ARMCPU *cpu)
48
cpu->isar.id_pfr2 = t;
49
50
t = cpu->isar.id_dfr0;
51
- t = FIELD_DP32(t, ID_DFR0, COPDBG, 8); /* FEAT_Debugv8p2 */
52
- t = FIELD_DP32(t, ID_DFR0, COPSDBG, 8); /* FEAT_Debugv8p2 */
53
+ t = FIELD_DP32(t, ID_DFR0, COPDBG, 9); /* FEAT_Debugv8p4 */
54
+ t = FIELD_DP32(t, ID_DFR0, COPSDBG, 9); /* FEAT_Debugv8p4 */
55
t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* FEAT_PMUv3p4 */
56
cpu->isar.id_dfr0 = t;
57
}
58
--
59
2.25.1
diff view generated by jsdifflib
[PULL 7/7] target/arm: Support EL0 v7m msr/mrs for CONFIG_USER_ONLY
[PULL 14/32] target/arm: Add minimal RAS registers
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Simply moving the non-stub helper_v7m_mrs/msr outside of
3
Add only the system registers required to implement zero error
4
!CONFIG_USER_ONLY is not an option, because of all of the
4
records. This means that all values for ERRSELR are out of range,
5
other system-mode helpers that are called.
5
which means that it and all of the indexed error record registers
6
need not be implemented.
6
7
7
But we can split out a few subroutines to handle the few
8
Add the EL2 registers required for injecting virtual SError.
8
EL0 accessible registers without duplicating code.
9
9
10
Reported-by: Christophe Lyon <christophe.lyon@linaro.org>
10
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
11
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
11
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
12
Message-id: 20191118194916.3670-1-richard.henderson@linaro.org
12
Message-id: 20220506180242.216785-14-richard.henderson@linaro.org
13
[PMM: deleted now-redundant comment; added a default case
14
to switch in v7m_msr helper]
15
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
16
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
17
---
14
---
18
target/arm/cpu.h | 2 +
15
target/arm/cpu.h | 5 +++
19
target/arm/m_helper.c | 114 ++++++++++++++++++++++++++----------------
16
target/arm/helper.c | 84 +++++++++++++++++++++++++++++++++++++++++++++
20
2 files changed, 73 insertions(+), 43 deletions(-)
17
2 files changed, 89 insertions(+)
21
18
22
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
19
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
23
index XXXXXXX..XXXXXXX 100644
20
index XXXXXXX..XXXXXXX 100644
24
--- a/target/arm/cpu.h
21
--- a/target/arm/cpu.h
25
+++ b/target/arm/cpu.h
22
+++ b/target/arm/cpu.h
26
@@ -XXX,XX +XXX,XX @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
23
@@ -XXX,XX +XXX,XX @@ typedef struct CPUArchState {
27
if (mask & XPSR_GE) {
24
uint64_t tfsr_el[4]; /* tfsre0_el1 is index 0. */
28
env->GE = (val & XPSR_GE) >> 16;
25
uint64_t gcr_el1;
29
}
26
uint64_t rgsr_el1;
30
+#ifndef CONFIG_USER_ONLY
27
+
31
if (mask & XPSR_T) {
28
+ /* Minimal RAS registers */
32
env->thumb = ((val & XPSR_T) != 0);
29
+ uint64_t disr_el1;
33
}
30
+ uint64_t vdisr_el2;
34
@@ -XXX,XX +XXX,XX @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
31
+ uint64_t vsesr_el2;
35
/* Note that this only happens on exception exit */
32
} cp15;
36
write_v7m_exception(env, val & XPSR_EXCP);
33
37
}
34
struct {
38
+#endif
35
diff --git a/target/arm/helper.c b/target/arm/helper.c
39
}
40
41
#define HCR_VM (1ULL << 0)
42
diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c
43
index XXXXXXX..XXXXXXX 100644
36
index XXXXXXX..XXXXXXX 100644
44
--- a/target/arm/m_helper.c
37
--- a/target/arm/helper.c
45
+++ b/target/arm/m_helper.c
38
+++ b/target/arm/helper.c
46
@@ -XXX,XX +XXX,XX @@
39
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_lpae_cp_reginfo[] = {
47
#include "exec/cpu_ldst.h"
40
.access = PL0_R, .type = ARM_CP_CONST|ARM_CP_64BIT, .resetvalue = 0 },
48
#endif
41
};
49
42
50
+static void v7m_msr_xpsr(CPUARMState *env, uint32_t mask,
43
+/*
51
+ uint32_t reg, uint32_t val)
44
+ * Check for traps to RAS registers, which are controlled
45
+ * by HCR_EL2.TERR and SCR_EL3.TERR.
46
+ */
47
+static CPAccessResult access_terr(CPUARMState *env, const ARMCPRegInfo *ri,
48
+ bool isread)
52
+{
49
+{
53
+ /* Only APSR is actually writable */
50
+ int el = arm_current_el(env);
54
+ if (!(reg & 4)) {
55
+ uint32_t apsrmask = 0;
56
+
51
+
57
+ if (mask & 8) {
52
+ if (el < 2 && (arm_hcr_el2_eff(env) & HCR_TERR)) {
58
+ apsrmask |= XPSR_NZCV | XPSR_Q;
53
+ return CP_ACCESS_TRAP_EL2;
59
+ }
60
+ if ((mask & 4) && arm_feature(env, ARM_FEATURE_THUMB_DSP)) {
61
+ apsrmask |= XPSR_GE;
62
+ }
63
+ xpsr_write(env, val, apsrmask);
64
+ }
54
+ }
55
+ if (el < 3 && (env->cp15.scr_el3 & SCR_TERR)) {
56
+ return CP_ACCESS_TRAP_EL3;
57
+ }
58
+ return CP_ACCESS_OK;
65
+}
59
+}
66
+
60
+
67
+static uint32_t v7m_mrs_xpsr(CPUARMState *env, uint32_t reg, unsigned el)
61
+static uint64_t disr_read(CPUARMState *env, const ARMCPRegInfo *ri)
68
+{
62
+{
69
+ uint32_t mask = 0;
63
+ int el = arm_current_el(env);
70
+
64
+
71
+ if ((reg & 1) && el) {
65
+ if (el < 2 && (arm_hcr_el2_eff(env) & HCR_AMO)) {
72
+ mask |= XPSR_EXCP; /* IPSR (unpriv. reads as zero) */
66
+ return env->cp15.vdisr_el2;
73
+ }
67
+ }
74
+ if (!(reg & 4)) {
68
+ if (el < 3 && (env->cp15.scr_el3 & SCR_EA)) {
75
+ mask |= XPSR_NZCV | XPSR_Q; /* APSR */
69
+ return 0; /* RAZ/WI */
76
+ if (arm_feature(env, ARM_FEATURE_THUMB_DSP)) {
77
+ mask |= XPSR_GE;
78
+ }
79
+ }
70
+ }
80
+ /* EPSR reads as zero */
71
+ return env->cp15.disr_el1;
81
+ return xpsr_read(env) & mask;
82
+}
72
+}
83
+
73
+
84
+static uint32_t v7m_mrs_control(CPUARMState *env, uint32_t secure)
74
+static void disr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val)
85
+{
75
+{
86
+ uint32_t value = env->v7m.control[secure];
76
+ int el = arm_current_el(env);
87
+
77
+
88
+ if (!secure) {
78
+ if (el < 2 && (arm_hcr_el2_eff(env) & HCR_AMO)) {
89
+ /* SFPA is RAZ/WI from NS; FPCA is stored in the M_REG_S bank */
79
+ env->cp15.vdisr_el2 = val;
90
+ value |= env->v7m.control[M_REG_S] & R_V7M_CONTROL_FPCA_MASK;
80
+ return;
91
+ }
81
+ }
92
+ return value;
82
+ if (el < 3 && (env->cp15.scr_el3 & SCR_EA)) {
83
+ return; /* RAZ/WI */
84
+ }
85
+ env->cp15.disr_el1 = val;
93
+}
86
+}
94
+
87
+
95
#ifdef CONFIG_USER_ONLY
88
+/*
96
89
+ * Minimal RAS implementation with no Error Records.
97
-/* These should probably raise undefined insn exceptions. */
90
+ * Which means that all of the Error Record registers:
98
-void HELPER(v7m_msr)(CPUARMState *env, uint32_t reg, uint32_t val)
91
+ * ERXADDR_EL1
99
+void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val)
92
+ * ERXCTLR_EL1
100
{
93
+ * ERXFR_EL1
101
- ARMCPU *cpu = env_archcpu(env);
94
+ * ERXMISC0_EL1
102
+ uint32_t mask = extract32(maskreg, 8, 4);
95
+ * ERXMISC1_EL1
103
+ uint32_t reg = extract32(maskreg, 0, 8);
96
+ * ERXMISC2_EL1
104
97
+ * ERXMISC3_EL1
105
- cpu_abort(CPU(cpu), "v7m_msr %d\n", reg);
98
+ * ERXPFGCDN_EL1 (RASv1p1)
106
+ switch (reg) {
99
+ * ERXPFGCTL_EL1 (RASv1p1)
107
+ case 0 ... 7: /* xPSR sub-fields */
100
+ * ERXPFGF_EL1 (RASv1p1)
108
+ v7m_msr_xpsr(env, mask, reg, val);
101
+ * ERXSTATUS_EL1
109
+ break;
102
+ * and
110
+ case 20: /* CONTROL */
103
+ * ERRSELR_EL1
111
+ /* There are no sub-fields that are actually writable from EL0. */
104
+ * may generate UNDEFINED, which is the effect we get by not
112
+ break;
105
+ * listing them at all.
113
+ default:
106
+ */
114
+ /* Unprivileged writes to other registers are ignored */
107
+static const ARMCPRegInfo minimal_ras_reginfo[] = {
115
+ break;
108
+ { .name = "DISR_EL1", .state = ARM_CP_STATE_BOTH,
109
+ .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 1, .opc2 = 1,
110
+ .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.disr_el1),
111
+ .readfn = disr_read, .writefn = disr_write, .raw_writefn = raw_write },
112
+ { .name = "ERRIDR_EL1", .state = ARM_CP_STATE_BOTH,
113
+ .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 3, .opc2 = 0,
114
+ .access = PL1_R, .accessfn = access_terr,
115
+ .type = ARM_CP_CONST, .resetvalue = 0 },
116
+ { .name = "VDISR_EL2", .state = ARM_CP_STATE_BOTH,
117
+ .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 1, .opc2 = 1,
118
+ .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.vdisr_el2) },
119
+ { .name = "VSESR_EL2", .state = ARM_CP_STATE_BOTH,
120
+ .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 3,
121
+ .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.vsesr_el2) },
122
+};
123
+
124
/* Return the exception level to which exceptions should be taken
125
* via SVEAccessTrap. If an exception should be routed through
126
* AArch64.AdvSIMDFPAccessTrap, return 0; fp_exception_el should
127
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
128
if (cpu_isar_feature(aa64_ssbs, cpu)) {
129
define_one_arm_cp_reg(cpu, &ssbs_reginfo);
130
}
131
+ if (cpu_isar_feature(any_ras, cpu)) {
132
+ define_arm_cp_regs(cpu, minimal_ras_reginfo);
116
+ }
133
+ }
117
}
134
118
135
if (cpu_isar_feature(aa64_vh, cpu) ||
119
uint32_t HELPER(v7m_mrs)(CPUARMState *env, uint32_t reg)
136
cpu_isar_feature(aa64_debugv8p2, cpu)) {
120
{
121
- ARMCPU *cpu = env_archcpu(env);
122
-
123
- cpu_abort(CPU(cpu), "v7m_mrs %d\n", reg);
124
- return 0;
125
+ switch (reg) {
126
+ case 0 ... 7: /* xPSR sub-fields */
127
+ return v7m_mrs_xpsr(env, reg, 0);
128
+ case 20: /* CONTROL */
129
+ return v7m_mrs_control(env, 0);
130
+ default:
131
+ /* Unprivileged reads others as zero. */
132
+ return 0;
133
+ }
134
}
135
136
void HELPER(v7m_bxns)(CPUARMState *env, uint32_t dest)
137
@@ -XXX,XX +XXX,XX @@ void arm_v7m_cpu_do_interrupt(CPUState *cs)
138
139
uint32_t HELPER(v7m_mrs)(CPUARMState *env, uint32_t reg)
140
{
141
- uint32_t mask;
142
unsigned el = arm_current_el(env);
143
144
/* First handle registers which unprivileged can read */
145
-
146
switch (reg) {
147
case 0 ... 7: /* xPSR sub-fields */
148
- mask = 0;
149
- if ((reg & 1) && el) {
150
- mask |= XPSR_EXCP; /* IPSR (unpriv. reads as zero) */
151
- }
152
- if (!(reg & 4)) {
153
- mask |= XPSR_NZCV | XPSR_Q; /* APSR */
154
- if (arm_feature(env, ARM_FEATURE_THUMB_DSP)) {
155
- mask |= XPSR_GE;
156
- }
157
- }
158
- /* EPSR reads as zero */
159
- return xpsr_read(env) & mask;
160
- break;
161
+ return v7m_mrs_xpsr(env, reg, el);
162
case 20: /* CONTROL */
163
- {
164
- uint32_t value = env->v7m.control[env->v7m.secure];
165
- if (!env->v7m.secure) {
166
- /* SFPA is RAZ/WI from NS; FPCA is stored in the M_REG_S bank */
167
- value |= env->v7m.control[M_REG_S] & R_V7M_CONTROL_FPCA_MASK;
168
- }
169
- return value;
170
- }
171
+ return v7m_mrs_control(env, env->v7m.secure);
172
case 0x94: /* CONTROL_NS */
173
/*
174
* We have to handle this here because unprivileged Secure code
175
@@ -XXX,XX +XXX,XX @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val)
176
177
switch (reg) {
178
case 0 ... 7: /* xPSR sub-fields */
179
- /* only APSR is actually writable */
180
- if (!(reg & 4)) {
181
- uint32_t apsrmask = 0;
182
-
183
- if (mask & 8) {
184
- apsrmask |= XPSR_NZCV | XPSR_Q;
185
- }
186
- if ((mask & 4) && arm_feature(env, ARM_FEATURE_THUMB_DSP)) {
187
- apsrmask |= XPSR_GE;
188
- }
189
- xpsr_write(env, val, apsrmask);
190
- }
191
+ v7m_msr_xpsr(env, mask, reg, val);
192
break;
193
case 8: /* MSP */
194
if (v7m_using_psp(env)) {
195
--
137
--
196
2.20.1
138
2.25.1
197
198
diff view generated by jsdifflib
New patch
[PULL 15/32] target/arm: Enable SCR and HCR bits for RAS
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Enable writes to the TERR and TEA bits when RAS is enabled.
4
These bits are otherwise RES0.
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20220506180242.216785-15-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
target/arm/helper.c | 9 +++++++++
12
1 file changed, 9 insertions(+)
13
14
diff --git a/target/arm/helper.c b/target/arm/helper.c
15
index XXXXXXX..XXXXXXX 100644
16
--- a/target/arm/helper.c
17
+++ b/target/arm/helper.c
18
@@ -XXX,XX +XXX,XX @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
19
}
20
valid_mask &= ~SCR_NET;
21
22
+ if (cpu_isar_feature(aa64_ras, cpu)) {
23
+ valid_mask |= SCR_TERR;
24
+ }
25
if (cpu_isar_feature(aa64_lor, cpu)) {
26
valid_mask |= SCR_TLOR;
27
}
28
@@ -XXX,XX +XXX,XX @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
29
}
30
} else {
31
valid_mask &= ~(SCR_RW | SCR_ST);
32
+ if (cpu_isar_feature(aa32_ras, cpu)) {
33
+ valid_mask |= SCR_TERR;
34
+ }
35
}
36
37
if (!arm_feature(env, ARM_FEATURE_EL2)) {
38
@@ -XXX,XX +XXX,XX @@ static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
39
if (cpu_isar_feature(aa64_vh, cpu)) {
40
valid_mask |= HCR_E2H;
41
}
42
+ if (cpu_isar_feature(aa64_ras, cpu)) {
43
+ valid_mask |= HCR_TERR | HCR_TEA;
44
+ }
45
if (cpu_isar_feature(aa64_lor, cpu)) {
46
valid_mask |= HCR_TLOR;
47
}
48
--
49
2.25.1
diff view generated by jsdifflib
[PULL 6/7] target/arm: Relax r13 restriction for ldrex/strex for v8.0
[PULL 16/32] target/arm: Implement virtual SError exceptions
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Armv8-A removes UNPREDICTABLE for R13 for these cases.
3
Virtual SError exceptions are raised by setting HCR_EL2.VSE,
4
and are routed to EL1 just like other virtual exceptions.
4
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
6
Message-id: 20191117090621.32425-3-richard.henderson@linaro.org
8
Message-id: 20220506180242.216785-16-richard.henderson@linaro.org
7
[PMM: changed ENABLE_ARCH_8 checks to check a new bool 'v8a',
8
since these cases are still UNPREDICTABLE for v8M]
9
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
10
---
12
target/arm/translate.c | 12 ++++++++----
11
target/arm/cpu.h | 2 ++
13
1 file changed, 8 insertions(+), 4 deletions(-)
12
target/arm/internals.h | 8 ++++++++
13
target/arm/syndrome.h | 5 +++++
14
target/arm/cpu.c | 38 +++++++++++++++++++++++++++++++++++++-
15
target/arm/helper.c | 40 +++++++++++++++++++++++++++++++++++++++-
16
5 files changed, 91 insertions(+), 2 deletions(-)
14
17
15
diff --git a/target/arm/translate.c b/target/arm/translate.c
18
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
16
index XXXXXXX..XXXXXXX 100644
19
index XXXXXXX..XXXXXXX 100644
17
--- a/target/arm/translate.c
20
--- a/target/arm/cpu.h
18
+++ b/target/arm/translate.c
21
+++ b/target/arm/cpu.h
19
@@ -XXX,XX +XXX,XX @@ static bool trans_SWPB(DisasContext *s, arg_SWP *a)
22
@@ -XXX,XX +XXX,XX @@
20
static bool op_strex(DisasContext *s, arg_STREX *a, MemOp mop, bool rel)
23
#define EXCP_LSERR 21 /* v8M LSERR SecureFault */
24
#define EXCP_UNALIGNED 22 /* v7M UNALIGNED UsageFault */
25
#define EXCP_DIVBYZERO 23 /* v7M DIVBYZERO UsageFault */
26
+#define EXCP_VSERR 24
27
/* NB: add new EXCP_ defines to the array in arm_log_exception() too */
28
29
#define ARMV7M_EXCP_RESET 1
30
@@ -XXX,XX +XXX,XX @@ enum {
31
#define CPU_INTERRUPT_FIQ CPU_INTERRUPT_TGT_EXT_1
32
#define CPU_INTERRUPT_VIRQ CPU_INTERRUPT_TGT_EXT_2
33
#define CPU_INTERRUPT_VFIQ CPU_INTERRUPT_TGT_EXT_3
34
+#define CPU_INTERRUPT_VSERR CPU_INTERRUPT_TGT_INT_0
35
36
/* The usual mapping for an AArch64 system register to its AArch32
37
* counterpart is for the 32 bit world to have access to the lower
38
diff --git a/target/arm/internals.h b/target/arm/internals.h
39
index XXXXXXX..XXXXXXX 100644
40
--- a/target/arm/internals.h
41
+++ b/target/arm/internals.h
42
@@ -XXX,XX +XXX,XX @@ void arm_cpu_update_virq(ARMCPU *cpu);
43
*/
44
void arm_cpu_update_vfiq(ARMCPU *cpu);
45
46
+/**
47
+ * arm_cpu_update_vserr: Update CPU_INTERRUPT_VSERR bit
48
+ *
49
+ * Update the CPU_INTERRUPT_VSERR bit in cs->interrupt_request,
50
+ * following a change to the HCR_EL2.VSE bit.
51
+ */
52
+void arm_cpu_update_vserr(ARMCPU *cpu);
53
+
54
/**
55
* arm_mmu_idx_el:
56
* @env: The cpu environment
57
diff --git a/target/arm/syndrome.h b/target/arm/syndrome.h
58
index XXXXXXX..XXXXXXX 100644
59
--- a/target/arm/syndrome.h
60
+++ b/target/arm/syndrome.h
61
@@ -XXX,XX +XXX,XX @@ static inline uint32_t syn_pcalignment(void)
62
return (EC_PCALIGNMENT << ARM_EL_EC_SHIFT) | ARM_EL_IL;
63
}
64
65
+static inline uint32_t syn_serror(uint32_t extra)
66
+{
67
+ return (EC_SERROR << ARM_EL_EC_SHIFT) | ARM_EL_IL | extra;
68
+}
69
+
70
#endif /* TARGET_ARM_SYNDROME_H */
71
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
72
index XXXXXXX..XXXXXXX 100644
73
--- a/target/arm/cpu.c
74
+++ b/target/arm/cpu.c
75
@@ -XXX,XX +XXX,XX @@ static bool arm_cpu_has_work(CPUState *cs)
76
return (cpu->power_state != PSCI_OFF)
77
&& cs->interrupt_request &
78
(CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD
79
- | CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ
80
+ | CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ | CPU_INTERRUPT_VSERR
81
| CPU_INTERRUPT_EXITTB);
82
}
83
84
@@ -XXX,XX +XXX,XX @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx,
85
return false;
86
}
87
return !(env->daif & PSTATE_I);
88
+ case EXCP_VSERR:
89
+ if (!(hcr_el2 & HCR_AMO) || (hcr_el2 & HCR_TGE)) {
90
+ /* VIRQs are only taken when hypervized. */
91
+ return false;
92
+ }
93
+ return !(env->daif & PSTATE_A);
94
default:
95
g_assert_not_reached();
96
}
97
@@ -XXX,XX +XXX,XX @@ static bool arm_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
98
goto found;
99
}
100
}
101
+ if (interrupt_request & CPU_INTERRUPT_VSERR) {
102
+ excp_idx = EXCP_VSERR;
103
+ target_el = 1;
104
+ if (arm_excp_unmasked(cs, excp_idx, target_el,
105
+ cur_el, secure, hcr_el2)) {
106
+ /* Taking a virtual abort clears HCR_EL2.VSE */
107
+ env->cp15.hcr_el2 &= ~HCR_VSE;
108
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_VSERR);
109
+ goto found;
110
+ }
111
+ }
112
return false;
113
114
found:
115
@@ -XXX,XX +XXX,XX @@ void arm_cpu_update_vfiq(ARMCPU *cpu)
116
}
117
}
118
119
+void arm_cpu_update_vserr(ARMCPU *cpu)
120
+{
121
+ /*
122
+ * Update the interrupt level for VSERR, which is the HCR_EL2.VSE bit.
123
+ */
124
+ CPUARMState *env = &cpu->env;
125
+ CPUState *cs = CPU(cpu);
126
+
127
+ bool new_state = env->cp15.hcr_el2 & HCR_VSE;
128
+
129
+ if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VSERR) != 0)) {
130
+ if (new_state) {
131
+ cpu_interrupt(cs, CPU_INTERRUPT_VSERR);
132
+ } else {
133
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_VSERR);
134
+ }
135
+ }
136
+}
137
+
138
#ifndef CONFIG_USER_ONLY
139
static void arm_cpu_set_irq(void *opaque, int irq, int level)
21
{
140
{
22
TCGv_i32 addr;
141
diff --git a/target/arm/helper.c b/target/arm/helper.c
23
+ /* Some cases stopped being UNPREDICTABLE in v8A (but not v8M) */
142
index XXXXXXX..XXXXXXX 100644
24
+ bool v8a = ENABLE_ARCH_8 && !arm_dc_feature(s, ARM_FEATURE_M);
143
--- a/target/arm/helper.c
25
144
+++ b/target/arm/helper.c
26
/* We UNDEF for these UNPREDICTABLE cases. */
145
@@ -XXX,XX +XXX,XX @@ static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri)
27
if (a->rd == 15 || a->rn == 15 || a->rt == 15
146
}
28
|| a->rd == a->rn || a->rd == a->rt
147
}
29
- || (s->thumb && (a->rd == 13 || a->rt == 13))
148
30
+ || (!v8a && s->thumb && (a->rd == 13 || a->rt == 13))
149
- /* External aborts are not possible in QEMU so A bit is always clear */
31
|| (mop == MO_64
150
+ if (hcr_el2 & HCR_AMO) {
32
&& (a->rt2 == 15
151
+ if (cs->interrupt_request & CPU_INTERRUPT_VSERR) {
33
|| a->rd == a->rt2
152
+ ret |= CPSR_A;
34
- || (s->thumb && a->rt2 == 13)))) {
153
+ }
35
+ || (!v8a && s->thumb && a->rt2 == 13)))) {
154
+ }
36
unallocated_encoding(s);
155
+
37
return true;
156
return ret;
38
}
157
}
39
@@ -XXX,XX +XXX,XX @@ static bool trans_STLH(DisasContext *s, arg_STL *a)
158
40
static bool op_ldrex(DisasContext *s, arg_LDREX *a, MemOp mop, bool acq)
159
@@ -XXX,XX +XXX,XX @@ static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
41
{
160
g_assert(qemu_mutex_iothread_locked());
42
TCGv_i32 addr;
161
arm_cpu_update_virq(cpu);
43
+ /* Some cases stopped being UNPREDICTABLE in v8A (but not v8M) */
162
arm_cpu_update_vfiq(cpu);
44
+ bool v8a = ENABLE_ARCH_8 && !arm_dc_feature(s, ARM_FEATURE_M);
163
+ arm_cpu_update_vserr(cpu);
45
164
}
46
/* We UNDEF for these UNPREDICTABLE cases. */
165
47
if (a->rn == 15 || a->rt == 15
166
static void hcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
48
- || (s->thumb && a->rt == 13)
167
@@ -XXX,XX +XXX,XX @@ void arm_log_exception(CPUState *cs)
49
+ || (!v8a && s->thumb && a->rt == 13)
168
[EXCP_LSERR] = "v8M LSERR UsageFault",
50
|| (mop == MO_64
169
[EXCP_UNALIGNED] = "v7M UNALIGNED UsageFault",
51
&& (a->rt2 == 15 || a->rt == a->rt2
170
[EXCP_DIVBYZERO] = "v7M DIVBYZERO UsageFault",
52
- || (s->thumb && a->rt2 == 13)))) {
171
+ [EXCP_VSERR] = "Virtual SERR",
53
+ || (!v8a && s->thumb && a->rt2 == 13)))) {
172
};
54
unallocated_encoding(s);
173
55
return true;
174
if (idx >= 0 && idx < ARRAY_SIZE(excnames)) {
175
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_do_interrupt_aarch32(CPUState *cs)
176
mask = CPSR_A | CPSR_I | CPSR_F;
177
offset = 4;
178
break;
179
+ case EXCP_VSERR:
180
+ {
181
+ /*
182
+ * Note that this is reported as a data abort, but the DFAR
183
+ * has an UNKNOWN value. Construct the SError syndrome from
184
+ * AET and ExT fields.
185
+ */
186
+ ARMMMUFaultInfo fi = { .type = ARMFault_AsyncExternal, };
187
+
188
+ if (extended_addresses_enabled(env)) {
189
+ env->exception.fsr = arm_fi_to_lfsc(&fi);
190
+ } else {
191
+ env->exception.fsr = arm_fi_to_sfsc(&fi);
192
+ }
193
+ env->exception.fsr |= env->cp15.vsesr_el2 & 0xd000;
194
+ A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr);
195
+ qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x\n",
196
+ env->exception.fsr);
197
+
198
+ new_mode = ARM_CPU_MODE_ABT;
199
+ addr = 0x10;
200
+ mask = CPSR_A | CPSR_I;
201
+ offset = 8;
202
+ }
203
+ break;
204
case EXCP_SMC:
205
new_mode = ARM_CPU_MODE_MON;
206
addr = 0x08;
207
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs)
208
case EXCP_VFIQ:
209
addr += 0x100;
210
break;
211
+ case EXCP_VSERR:
212
+ addr += 0x180;
213
+ /* Construct the SError syndrome from IDS and ISS fields. */
214
+ env->exception.syndrome = syn_serror(env->cp15.vsesr_el2 & 0x1ffffff);
215
+ env->cp15.esr_el[new_el] = env->exception.syndrome;
216
+ break;
217
default:
218
cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index);
56
}
219
}
57
--
220
--
58
2.20.1
221
2.25.1
59
60
diff view generated by jsdifflib
[PULL 5/7] target/arm: Do not reject rt == rt2 for strexd
[PULL 17/32] target/arm: Implement ESB instruction
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
There was too much cut and paste between ldrexd and strexd,
3
Check for and defer any pending virtual SError.
4
as ldrexd does prohibit two output registers the same.
5
4
6
Fixes: af288228995
5
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Reported-by: Michael Goffioul <michael.goffioul@gmail.com>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20191117090621.32425-2-richard.henderson@linaro.org
7
Message-id: 20220506180242.216785-17-richard.henderson@linaro.org
10
Reviewed-by: Robert Foley <robert.foley@linaro.org>
11
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
12
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
13
---
9
---
14
target/arm/translate.c | 2 +-
10
target/arm/helper.h | 1 +
15
1 file changed, 1 insertion(+), 1 deletion(-)
11
target/arm/a32.decode | 16 ++++++++------
12
target/arm/t32.decode | 18 ++++++++--------
13
target/arm/op_helper.c | 43 ++++++++++++++++++++++++++++++++++++++
14
target/arm/translate-a64.c | 17 +++++++++++++++
15
target/arm/translate.c | 23 ++++++++++++++++++++
16
6 files changed, 103 insertions(+), 15 deletions(-)
16
17
18
diff --git a/target/arm/helper.h b/target/arm/helper.h
19
index XXXXXXX..XXXXXXX 100644
20
--- a/target/arm/helper.h
21
+++ b/target/arm/helper.h
22
@@ -XXX,XX +XXX,XX @@ DEF_HELPER_1(wfe, void, env)
23
DEF_HELPER_1(yield, void, env)
24
DEF_HELPER_1(pre_hvc, void, env)
25
DEF_HELPER_2(pre_smc, void, env, i32)
26
+DEF_HELPER_1(vesb, void, env)
27
28
DEF_HELPER_3(cpsr_write, void, env, i32, i32)
29
DEF_HELPER_2(cpsr_write_eret, void, env, i32)
30
diff --git a/target/arm/a32.decode b/target/arm/a32.decode
31
index XXXXXXX..XXXXXXX 100644
32
--- a/target/arm/a32.decode
33
+++ b/target/arm/a32.decode
34
@@ -XXX,XX +XXX,XX @@ SMULTT .... 0001 0110 .... 0000 .... 1110 .... @rd0mn
35
36
{
37
{
38
- YIELD ---- 0011 0010 0000 1111 ---- 0000 0001
39
- WFE ---- 0011 0010 0000 1111 ---- 0000 0010
40
- WFI ---- 0011 0010 0000 1111 ---- 0000 0011
41
+ [
42
+ YIELD ---- 0011 0010 0000 1111 ---- 0000 0001
43
+ WFE ---- 0011 0010 0000 1111 ---- 0000 0010
44
+ WFI ---- 0011 0010 0000 1111 ---- 0000 0011
45
46
- # TODO: Implement SEV, SEVL; may help SMP performance.
47
- # SEV ---- 0011 0010 0000 1111 ---- 0000 0100
48
- # SEVL ---- 0011 0010 0000 1111 ---- 0000 0101
49
+ # TODO: Implement SEV, SEVL; may help SMP performance.
50
+ # SEV ---- 0011 0010 0000 1111 ---- 0000 0100
51
+ # SEVL ---- 0011 0010 0000 1111 ---- 0000 0101
52
+
53
+ ESB ---- 0011 0010 0000 1111 ---- 0001 0000
54
+ ]
55
56
# The canonical nop ends in 00000000, but the whole of the
57
# rest of the space executes as nop if otherwise unsupported.
58
diff --git a/target/arm/t32.decode b/target/arm/t32.decode
59
index XXXXXXX..XXXXXXX 100644
60
--- a/target/arm/t32.decode
61
+++ b/target/arm/t32.decode
62
@@ -XXX,XX +XXX,XX @@ CLZ 1111 1010 1011 ---- 1111 .... 1000 .... @rdm
63
[
64
# Hints, and CPS
65
{
66
- YIELD 1111 0011 1010 1111 1000 0000 0000 0001
67
- WFE 1111 0011 1010 1111 1000 0000 0000 0010
68
- WFI 1111 0011 1010 1111 1000 0000 0000 0011
69
+ [
70
+ YIELD 1111 0011 1010 1111 1000 0000 0000 0001
71
+ WFE 1111 0011 1010 1111 1000 0000 0000 0010
72
+ WFI 1111 0011 1010 1111 1000 0000 0000 0011
73
74
- # TODO: Implement SEV, SEVL; may help SMP performance.
75
- # SEV 1111 0011 1010 1111 1000 0000 0000 0100
76
- # SEVL 1111 0011 1010 1111 1000 0000 0000 0101
77
+ # TODO: Implement SEV, SEVL; may help SMP performance.
78
+ # SEV 1111 0011 1010 1111 1000 0000 0000 0100
79
+ # SEVL 1111 0011 1010 1111 1000 0000 0000 0101
80
81
- # For M-profile minimal-RAS ESB can be a NOP, which is the
82
- # default behaviour since it is in the hint space.
83
- # ESB 1111 0011 1010 1111 1000 0000 0001 0000
84
+ ESB 1111 0011 1010 1111 1000 0000 0001 0000
85
+ ]
86
87
# The canonical nop ends in 0000 0000, but the whole rest
88
# of the space is "reserved hint, behaves as nop".
89
diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c
90
index XXXXXXX..XXXXXXX 100644
91
--- a/target/arm/op_helper.c
92
+++ b/target/arm/op_helper.c
93
@@ -XXX,XX +XXX,XX @@ void HELPER(probe_access)(CPUARMState *env, target_ulong ptr,
94
access_type, mmu_idx, ra);
95
}
96
}
97
+
98
+/*
99
+ * This function corresponds to AArch64.vESBOperation().
100
+ * Note that the AArch32 version is not functionally different.
101
+ */
102
+void HELPER(vesb)(CPUARMState *env)
103
+{
104
+ /*
105
+ * The EL2Enabled() check is done inside arm_hcr_el2_eff,
106
+ * and will return HCR_EL2.VSE == 0, so nothing happens.
107
+ */
108
+ uint64_t hcr = arm_hcr_el2_eff(env);
109
+ bool enabled = !(hcr & HCR_TGE) && (hcr & HCR_AMO);
110
+ bool pending = enabled && (hcr & HCR_VSE);
111
+ bool masked = (env->daif & PSTATE_A);
112
+
113
+ /* If VSE pending and masked, defer the exception. */
114
+ if (pending && masked) {
115
+ uint32_t syndrome;
116
+
117
+ if (arm_el_is_aa64(env, 1)) {
118
+ /* Copy across IDS and ISS from VSESR. */
119
+ syndrome = env->cp15.vsesr_el2 & 0x1ffffff;
120
+ } else {
121
+ ARMMMUFaultInfo fi = { .type = ARMFault_AsyncExternal };
122
+
123
+ if (extended_addresses_enabled(env)) {
124
+ syndrome = arm_fi_to_lfsc(&fi);
125
+ } else {
126
+ syndrome = arm_fi_to_sfsc(&fi);
127
+ }
128
+ /* Copy across AET and ExT from VSESR. */
129
+ syndrome |= env->cp15.vsesr_el2 & 0xd000;
130
+ }
131
+
132
+ /* Set VDISR_EL2.A along with the syndrome. */
133
+ env->cp15.vdisr_el2 = syndrome | (1u << 31);
134
+
135
+ /* Clear pending virtual SError */
136
+ env->cp15.hcr_el2 &= ~HCR_VSE;
137
+ cpu_reset_interrupt(env_cpu(env), CPU_INTERRUPT_VSERR);
138
+ }
139
+}
140
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
141
index XXXXXXX..XXXXXXX 100644
142
--- a/target/arm/translate-a64.c
143
+++ b/target/arm/translate-a64.c
144
@@ -XXX,XX +XXX,XX @@ static void handle_hint(DisasContext *s, uint32_t insn,
145
gen_helper_autib(cpu_X[17], cpu_env, cpu_X[17], cpu_X[16]);
146
}
147
break;
148
+ case 0b10000: /* ESB */
149
+ /* Without RAS, we must implement this as NOP. */
150
+ if (dc_isar_feature(aa64_ras, s)) {
151
+ /*
152
+ * QEMU does not have a source of physical SErrors,
153
+ * so we are only concerned with virtual SErrors.
154
+ * The pseudocode in the ARM for this case is
155
+ * if PSTATE.EL IN {EL0, EL1} && EL2Enabled() then
156
+ * AArch64.vESBOperation();
157
+ * Most of the condition can be evaluated at translation time.
158
+ * Test for EL2 present, and defer test for SEL2 to runtime.
159
+ */
160
+ if (s->current_el <= 1 && arm_dc_feature(s, ARM_FEATURE_EL2)) {
161
+ gen_helper_vesb(cpu_env);
162
+ }
163
+ }
164
+ break;
165
case 0b11000: /* PACIAZ */
166
if (s->pauth_active) {
167
gen_helper_pacia(cpu_X[30], cpu_env, cpu_X[30],
17
diff --git a/target/arm/translate.c b/target/arm/translate.c
168
diff --git a/target/arm/translate.c b/target/arm/translate.c
18
index XXXXXXX..XXXXXXX 100644
169
index XXXXXXX..XXXXXXX 100644
19
--- a/target/arm/translate.c
170
--- a/target/arm/translate.c
20
+++ b/target/arm/translate.c
171
+++ b/target/arm/translate.c
21
@@ -XXX,XX +XXX,XX @@ static bool op_strex(DisasContext *s, arg_STREX *a, MemOp mop, bool rel)
172
@@ -XXX,XX +XXX,XX @@ static bool trans_WFI(DisasContext *s, arg_WFI *a)
22
|| (s->thumb && (a->rd == 13 || a->rt == 13))
173
return true;
23
|| (mop == MO_64
174
}
24
&& (a->rt2 == 15
175
25
- || a->rd == a->rt2 || a->rt == a->rt2
176
+static bool trans_ESB(DisasContext *s, arg_ESB *a)
26
+ || a->rd == a->rt2
177
+{
27
|| (s->thumb && a->rt2 == 13)))) {
178
+ /*
28
unallocated_encoding(s);
179
+ * For M-profile, minimal-RAS ESB can be a NOP.
29
return true;
180
+ * Without RAS, we must implement this as NOP.
181
+ */
182
+ if (!arm_dc_feature(s, ARM_FEATURE_M) && dc_isar_feature(aa32_ras, s)) {
183
+ /*
184
+ * QEMU does not have a source of physical SErrors,
185
+ * so we are only concerned with virtual SErrors.
186
+ * The pseudocode in the ARM for this case is
187
+ * if PSTATE.EL IN {EL0, EL1} && EL2Enabled() then
188
+ * AArch32.vESBOperation();
189
+ * Most of the condition can be evaluated at translation time.
190
+ * Test for EL2 present, and defer test for SEL2 to runtime.
191
+ */
192
+ if (s->current_el <= 1 && arm_dc_feature(s, ARM_FEATURE_EL2)) {
193
+ gen_helper_vesb(cpu_env);
194
+ }
195
+ }
196
+ return true;
197
+}
198
+
199
static bool trans_NOP(DisasContext *s, arg_NOP *a)
200
{
201
return true;
30
--
202
--
31
2.20.1
203
2.25.1
32
33
diff view generated by jsdifflib
New patch
[PULL 18/32] target/arm: Enable FEAT_RAS for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
4
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
5
Message-id: 20220506180242.216785-18-richard.henderson@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
docs/system/arm/emulation.rst | 1 +
9
target/arm/cpu64.c | 1 +
10
target/arm/cpu_tcg.c | 1 +
11
3 files changed, 3 insertions(+)
12
13
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
14
index XXXXXXX..XXXXXXX 100644
15
--- a/docs/system/arm/emulation.rst
16
+++ b/docs/system/arm/emulation.rst
17
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
18
- FEAT_PMULL (PMULL, PMULL2 instructions)
19
- FEAT_PMUv3p1 (PMU Extensions v3.1)
20
- FEAT_PMUv3p4 (PMU Extensions v3.4)
21
+- FEAT_RAS (Reliability, availability, and serviceability)
22
- FEAT_RDM (Advanced SIMD rounding double multiply accumulate instructions)
23
- FEAT_RNG (Random number generator)
24
- FEAT_SB (Speculation Barrier)
25
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
26
index XXXXXXX..XXXXXXX 100644
27
--- a/target/arm/cpu64.c
28
+++ b/target/arm/cpu64.c
29
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
30
t = cpu->isar.id_aa64pfr0;
31
t = FIELD_DP64(t, ID_AA64PFR0, FP, 1); /* FEAT_FP16 */
32
t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1); /* FEAT_FP16 */
33
+ t = FIELD_DP64(t, ID_AA64PFR0, RAS, 1); /* FEAT_RAS */
34
t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
35
t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1); /* FEAT_SEL2 */
36
t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1); /* FEAT_DIT */
37
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
38
index XXXXXXX..XXXXXXX 100644
39
--- a/target/arm/cpu_tcg.c
40
+++ b/target/arm/cpu_tcg.c
41
@@ -XXX,XX +XXX,XX @@ void aa32_max_features(ARMCPU *cpu)
42
43
t = cpu->isar.id_pfr0;
44
t = FIELD_DP32(t, ID_PFR0, DIT, 1); /* FEAT_DIT */
45
+ t = FIELD_DP32(t, ID_PFR0, RAS, 1); /* FEAT_RAS */
46
cpu->isar.id_pfr0 = t;
47
48
t = cpu->isar.id_pfr2;
49
--
50
2.25.1
diff view generated by jsdifflib
New patch
[PULL 19/32] target/arm: Enable FEAT_IESB for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
This feature is AArch64 only, and applies to physical SErrors,
4
which QEMU does not implement, thus the feature is a nop.
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20220506180242.216785-19-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
docs/system/arm/emulation.rst | 1 +
12
target/arm/cpu64.c | 1 +
13
2 files changed, 2 insertions(+)
14
15
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
16
index XXXXXXX..XXXXXXX 100644
17
--- a/docs/system/arm/emulation.rst
18
+++ b/docs/system/arm/emulation.rst
19
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
20
- FEAT_FlagM2 (Enhancements to flag manipulation instructions)
21
- FEAT_HPDS (Hierarchical permission disables)
22
- FEAT_I8MM (AArch64 Int8 matrix multiplication instructions)
23
+- FEAT_IESB (Implicit error synchronization event)
24
- FEAT_JSCVT (JavaScript conversion instructions)
25
- FEAT_LOR (Limited ordering regions)
26
- FEAT_LPA (Large Physical Address space)
27
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
28
index XXXXXXX..XXXXXXX 100644
29
--- a/target/arm/cpu64.c
30
+++ b/target/arm/cpu64.c
31
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
32
t = cpu->isar.id_aa64mmfr2;
33
t = FIELD_DP64(t, ID_AA64MMFR2, CNP, 1); /* FEAT_TTCNP */
34
t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1); /* FEAT_UAO */
35
+ t = FIELD_DP64(t, ID_AA64MMFR2, IESB, 1); /* FEAT_IESB */
36
t = FIELD_DP64(t, ID_AA64MMFR2, VARANGE, 1); /* FEAT_LVA */
37
t = FIELD_DP64(t, ID_AA64MMFR2, ST, 1); /* FEAT_TTST */
38
t = FIELD_DP64(t, ID_AA64MMFR2, TTL, 1); /* FEAT_TTL */
39
--
40
2.25.1
diff view generated by jsdifflib
New patch
[PULL 20/32] target/arm: Enable FEAT_CSV2 for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
This extension concerns branch speculation, which TCG does
4
not implement. Thus we can trivially enable this feature.
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20220506180242.216785-20-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
docs/system/arm/emulation.rst | 1 +
12
target/arm/cpu64.c | 1 +
13
target/arm/cpu_tcg.c | 1 +
14
3 files changed, 3 insertions(+)
15
16
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
17
index XXXXXXX..XXXXXXX 100644
18
--- a/docs/system/arm/emulation.rst
19
+++ b/docs/system/arm/emulation.rst
20
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
21
- FEAT_BBM at level 2 (Translation table break-before-make levels)
22
- FEAT_BF16 (AArch64 BFloat16 instructions)
23
- FEAT_BTI (Branch Target Identification)
24
+- FEAT_CSV2 (Cache speculation variant 2)
25
- FEAT_DIT (Data Independent Timing instructions)
26
- FEAT_DPB (DC CVAP instruction)
27
- FEAT_Debugv8p2 (Debug changes for v8.2)
28
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
29
index XXXXXXX..XXXXXXX 100644
30
--- a/target/arm/cpu64.c
31
+++ b/target/arm/cpu64.c
32
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
33
t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
34
t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1); /* FEAT_SEL2 */
35
t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1); /* FEAT_DIT */
36
+ t = FIELD_DP64(t, ID_AA64PFR0, CSV2, 1); /* FEAT_CSV2 */
37
cpu->isar.id_aa64pfr0 = t;
38
39
t = cpu->isar.id_aa64pfr1;
40
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
41
index XXXXXXX..XXXXXXX 100644
42
--- a/target/arm/cpu_tcg.c
43
+++ b/target/arm/cpu_tcg.c
44
@@ -XXX,XX +XXX,XX @@ void aa32_max_features(ARMCPU *cpu)
45
cpu->isar.id_mmfr4 = t;
46
47
t = cpu->isar.id_pfr0;
48
+ t = FIELD_DP32(t, ID_PFR0, CSV2, 2); /* FEAT_CVS2 */
49
t = FIELD_DP32(t, ID_PFR0, DIT, 1); /* FEAT_DIT */
50
t = FIELD_DP32(t, ID_PFR0, RAS, 1); /* FEAT_RAS */
51
cpu->isar.id_pfr0 = t;
52
--
53
2.25.1
diff view generated by jsdifflib
[PULL 2/7] target/arm: Merge arm_cpu_vq_map_next_smaller into sole caller
[PULL 21/32] target/arm: Enable FEAT_CSV2_2 for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
From: Richard Henderson <richard.henderson@linaro.org>
2
2
3
Coverity reports, in sve_zcr_get_valid_len,
3
There is no branch prediction in TCG, therefore there is no
4
need to actually include the context number into the predictor.
5
Therefore all we need to do is add the state for SCXTNUM_ELx.
4
6
5
"Subtract operation overflows on operands
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
6
arm_cpu_vq_map_next_smaller(cpu, start_vq + 1U) and 1U"
7
8
First, the aarch32 stub version of arm_cpu_vq_map_next_smaller,
9
returning 0, does exactly what Coverity reports. Remove it.
10
11
Second, the aarch64 version of arm_cpu_vq_map_next_smaller has
12
a set of asserts, but they don't cover the case in question.
13
Further, there is a fair amount of extra arithmetic needed to
14
convert from the 0-based zcr register, to the 1-base vq form,
15
to the 0-based bitmap, and back again. This can be simplified
16
by leaving the value in the 0-based form.
17
18
Finally, use test_bit to simplify the common case, where the
19
length in the zcr registers is in fact a supported length.
20
21
Reported-by: Coverity (CID 1407217)
22
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
23
Reviewed-by: Andrew Jones <drjones@redhat.com>
9
Message-id: 20220506180242.216785-21-richard.henderson@linaro.org
24
Message-id: 20191118091414.19440-1-richard.henderson@linaro.org
25
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
26
---
11
---
27
target/arm/cpu.h | 3 ---
12
docs/system/arm/emulation.rst | 3 ++
28
target/arm/cpu64.c | 15 ---------------
13
target/arm/cpu.h | 16 +++++++++
29
target/arm/helper.c | 9 +++++++--
14
target/arm/cpu.c | 5 +++
30
3 files changed, 7 insertions(+), 20 deletions(-)
15
target/arm/cpu64.c | 3 +-
16
target/arm/helper.c | 61 ++++++++++++++++++++++++++++++++++-
17
5 files changed, 86 insertions(+), 2 deletions(-)
31
18
19
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
20
index XXXXXXX..XXXXXXX 100644
21
--- a/docs/system/arm/emulation.rst
22
+++ b/docs/system/arm/emulation.rst
23
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
24
- FEAT_BF16 (AArch64 BFloat16 instructions)
25
- FEAT_BTI (Branch Target Identification)
26
- FEAT_CSV2 (Cache speculation variant 2)
27
+- FEAT_CSV2_1p1 (Cache speculation variant 2, version 1.1)
28
+- FEAT_CSV2_1p2 (Cache speculation variant 2, version 1.2)
29
+- FEAT_CSV2_2 (Cache speculation variant 2, version 2)
30
- FEAT_DIT (Data Independent Timing instructions)
31
- FEAT_DPB (DC CVAP instruction)
32
- FEAT_Debugv8p2 (Debug changes for v8.2)
32
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
33
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
33
index XXXXXXX..XXXXXXX 100644
34
index XXXXXXX..XXXXXXX 100644
34
--- a/target/arm/cpu.h
35
--- a/target/arm/cpu.h
35
+++ b/target/arm/cpu.h
36
+++ b/target/arm/cpu.h
36
@@ -XXX,XX +XXX,XX @@ typedef struct {
37
@@ -XXX,XX +XXX,XX @@ typedef struct CPUArchState {
37
#ifdef TARGET_AARCH64
38
ARMPACKey apdb;
38
# define ARM_MAX_VQ 16
39
ARMPACKey apga;
39
void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp);
40
} keys;
40
-uint32_t arm_cpu_vq_map_next_smaller(ARMCPU *cpu, uint32_t vq);
41
+
42
+ uint64_t scxtnum_el[4];
43
#endif
44
45
#if defined(CONFIG_USER_ONLY)
46
@@ -XXX,XX +XXX,XX @@ void pmu_init(ARMCPU *cpu);
47
#define SCTLR_WXN (1U << 19)
48
#define SCTLR_ST (1U << 20) /* up to ??, RAZ in v6 */
49
#define SCTLR_UWXN (1U << 20) /* v7 onward, AArch32 only */
50
+#define SCTLR_TSCXT (1U << 20) /* FEAT_CSV2_1p2, AArch64 only */
51
#define SCTLR_FI (1U << 21) /* up to v7, v8 RES0 */
52
#define SCTLR_IESB (1U << 21) /* v8.2-IESB, AArch64 only */
53
#define SCTLR_U (1U << 22) /* up to v6, RAO in v7 */
54
@@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_dit(const ARMISARegisters *id)
55
return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, DIT) != 0;
56
}
57
58
+static inline bool isar_feature_aa64_scxtnum(const ARMISARegisters *id)
59
+{
60
+ int key = FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, CSV2);
61
+ if (key >= 2) {
62
+ return true; /* FEAT_CSV2_2 */
63
+ }
64
+ if (key == 1) {
65
+ key = FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, CSV2_FRAC);
66
+ return key >= 2; /* FEAT_CSV2_1p2 */
67
+ }
68
+ return false;
69
+}
70
+
71
static inline bool isar_feature_aa64_ssbs(const ARMISARegisters *id)
72
{
73
return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, SSBS) != 0;
74
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
75
index XXXXXXX..XXXXXXX 100644
76
--- a/target/arm/cpu.c
77
+++ b/target/arm/cpu.c
78
@@ -XXX,XX +XXX,XX @@ static void arm_cpu_reset(DeviceState *dev)
79
*/
80
env->cp15.gcr_el1 = 0x1ffff;
81
}
82
+ /*
83
+ * Disable access to SCXTNUM_EL0 from CSV2_1p2.
84
+ * This is not yet exposed from the Linux kernel in any way.
85
+ */
86
+ env->cp15.sctlr_el[1] |= SCTLR_TSCXT;
41
#else
87
#else
42
# define ARM_MAX_VQ 1
88
/* Reset into the highest available EL */
43
static inline void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp) { }
89
if (arm_feature(env, ARM_FEATURE_EL3)) {
44
-static inline uint32_t arm_cpu_vq_map_next_smaller(ARMCPU *cpu, uint32_t vq)
45
-{ return 0; }
46
#endif
47
48
typedef struct ARMVectorReg {
49
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
90
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
50
index XXXXXXX..XXXXXXX 100644
91
index XXXXXXX..XXXXXXX 100644
51
--- a/target/arm/cpu64.c
92
--- a/target/arm/cpu64.c
52
+++ b/target/arm/cpu64.c
93
+++ b/target/arm/cpu64.c
53
@@ -XXX,XX +XXX,XX @@ void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp)
94
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
54
cpu->sve_max_vq = max_vq;
95
t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1);
55
}
96
t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1); /* FEAT_SEL2 */
56
97
t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1); /* FEAT_DIT */
57
-uint32_t arm_cpu_vq_map_next_smaller(ARMCPU *cpu, uint32_t vq)
98
- t = FIELD_DP64(t, ID_AA64PFR0, CSV2, 1); /* FEAT_CSV2 */
58
-{
99
+ t = FIELD_DP64(t, ID_AA64PFR0, CSV2, 2); /* FEAT_CSV2_2 */
59
- uint32_t bitnum;
100
cpu->isar.id_aa64pfr0 = t;
60
-
101
61
- /*
102
t = cpu->isar.id_aa64pfr1;
62
- * We allow vq == ARM_MAX_VQ + 1 to be input because the caller may want
103
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
63
- * to find the maximum vq enabled, which may be ARM_MAX_VQ, but this
104
* we do for EL2 with the virtualization=on property.
64
- * function always returns the next smaller than the input.
105
*/
65
- */
106
t = FIELD_DP64(t, ID_AA64PFR1, MTE, 3); /* FEAT_MTE3 */
66
- assert(vq && vq <= ARM_MAX_VQ + 1);
107
+ t = FIELD_DP64(t, ID_AA64PFR1, CSV2_FRAC, 0); /* FEAT_CSV2_2 */
67
-
108
cpu->isar.id_aa64pfr1 = t;
68
- bitnum = find_last_bit(cpu->sve_vq_map, vq - 1);
109
69
- return bitnum == vq - 1 ? 0 : bitnum + 1;
110
t = cpu->isar.id_aa64mmfr0;
70
-}
71
-
72
static void cpu_max_get_sve_max_vq(Object *obj, Visitor *v, const char *name,
73
void *opaque, Error **errp)
74
{
75
diff --git a/target/arm/helper.c b/target/arm/helper.c
111
diff --git a/target/arm/helper.c b/target/arm/helper.c
76
index XXXXXXX..XXXXXXX 100644
112
index XXXXXXX..XXXXXXX 100644
77
--- a/target/arm/helper.c
113
--- a/target/arm/helper.c
78
+++ b/target/arm/helper.c
114
+++ b/target/arm/helper.c
79
@@ -XXX,XX +XXX,XX @@ int sve_exception_el(CPUARMState *env, int el)
115
@@ -XXX,XX +XXX,XX @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
80
116
if (cpu_isar_feature(aa64_mte, cpu)) {
81
static uint32_t sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len)
117
valid_mask |= SCR_ATA;
82
{
118
}
83
- uint32_t start_vq = (start_len & 0xf) + 1;
119
+ if (cpu_isar_feature(aa64_scxtnum, cpu)) {
84
+ uint32_t end_len;
120
+ valid_mask |= SCR_ENSCXT;
85
121
+ }
86
- return arm_cpu_vq_map_next_smaller(cpu, start_vq + 1) - 1;
122
} else {
87
+ end_len = start_len &= 0xf;
123
valid_mask &= ~(SCR_RW | SCR_ST);
88
+ if (!test_bit(start_len, cpu->sve_vq_map)) {
124
if (cpu_isar_feature(aa32_ras, cpu)) {
89
+ end_len = find_last_bit(cpu->sve_vq_map, start_len);
125
@@ -XXX,XX +XXX,XX @@ static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
90
+ assert(end_len < start_len);
126
if (cpu_isar_feature(aa64_mte, cpu)) {
91
+ }
127
valid_mask |= HCR_ATA | HCR_DCT | HCR_TID5;
92
+ return end_len;
128
}
93
}
129
+ if (cpu_isar_feature(aa64_scxtnum, cpu)) {
94
130
+ valid_mask |= HCR_ENSCXT;
95
/*
131
+ }
132
}
133
134
/* Clear RES0 bits. */
135
@@ -XXX,XX +XXX,XX @@ static void define_arm_vh_e2h_redirects_aliases(ARMCPU *cpu)
136
{ K(3, 0, 5, 6, 0), K(3, 4, 5, 6, 0), K(3, 5, 5, 6, 0),
137
"TFSR_EL1", "TFSR_EL2", "TFSR_EL12", isar_feature_aa64_mte },
138
139
+ { K(3, 0, 13, 0, 7), K(3, 4, 13, 0, 7), K(3, 5, 13, 0, 7),
140
+ "SCXTNUM_EL1", "SCXTNUM_EL2", "SCXTNUM_EL12",
141
+ isar_feature_aa64_scxtnum },
142
+
143
/* TODO: ARMv8.2-SPE -- PMSCR_EL2 */
144
/* TODO: ARMv8.4-Trace -- TRFCR_EL2 */
145
};
146
@@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = {
147
},
148
};
149
150
-#endif
151
+static CPAccessResult access_scxtnum(CPUARMState *env, const ARMCPRegInfo *ri,
152
+ bool isread)
153
+{
154
+ uint64_t hcr = arm_hcr_el2_eff(env);
155
+ int el = arm_current_el(env);
156
+
157
+ if (el == 0 && !((hcr & HCR_E2H) && (hcr & HCR_TGE))) {
158
+ if (env->cp15.sctlr_el[1] & SCTLR_TSCXT) {
159
+ if (hcr & HCR_TGE) {
160
+ return CP_ACCESS_TRAP_EL2;
161
+ }
162
+ return CP_ACCESS_TRAP;
163
+ }
164
+ } else if (el < 2 && (env->cp15.sctlr_el[2] & SCTLR_TSCXT)) {
165
+ return CP_ACCESS_TRAP_EL2;
166
+ }
167
+ if (el < 2 && arm_is_el2_enabled(env) && !(hcr & HCR_ENSCXT)) {
168
+ return CP_ACCESS_TRAP_EL2;
169
+ }
170
+ if (el < 3
171
+ && arm_feature(env, ARM_FEATURE_EL3)
172
+ && !(env->cp15.scr_el3 & SCR_ENSCXT)) {
173
+ return CP_ACCESS_TRAP_EL3;
174
+ }
175
+ return CP_ACCESS_OK;
176
+}
177
+
178
+static const ARMCPRegInfo scxtnum_reginfo[] = {
179
+ { .name = "SCXTNUM_EL0", .state = ARM_CP_STATE_AA64,
180
+ .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 7,
181
+ .access = PL0_RW, .accessfn = access_scxtnum,
182
+ .fieldoffset = offsetof(CPUARMState, scxtnum_el[0]) },
183
+ { .name = "SCXTNUM_EL1", .state = ARM_CP_STATE_AA64,
184
+ .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 7,
185
+ .access = PL1_RW, .accessfn = access_scxtnum,
186
+ .fieldoffset = offsetof(CPUARMState, scxtnum_el[1]) },
187
+ { .name = "SCXTNUM_EL2", .state = ARM_CP_STATE_AA64,
188
+ .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 7,
189
+ .access = PL2_RW, .accessfn = access_scxtnum,
190
+ .fieldoffset = offsetof(CPUARMState, scxtnum_el[2]) },
191
+ { .name = "SCXTNUM_EL3", .state = ARM_CP_STATE_AA64,
192
+ .opc0 = 3, .opc1 = 6, .crn = 13, .crm = 0, .opc2 = 7,
193
+ .access = PL3_RW,
194
+ .fieldoffset = offsetof(CPUARMState, scxtnum_el[3]) },
195
+};
196
+#endif /* TARGET_AARCH64 */
197
198
static CPAccessResult access_predinv(CPUARMState *env, const ARMCPRegInfo *ri,
199
bool isread)
200
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
201
define_arm_cp_regs(cpu, mte_tco_ro_reginfo);
202
define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo);
203
}
204
+
205
+ if (cpu_isar_feature(aa64_scxtnum, cpu)) {
206
+ define_arm_cp_regs(cpu, scxtnum_reginfo);
207
+ }
208
#endif
209
210
if (cpu_isar_feature(any_predinv, cpu)) {
96
--
211
--
97
2.20.1
212
2.25.1
98
99
diff view generated by jsdifflib
New patch
[PULL 22/32] target/arm: Enable FEAT_CSV3 for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
This extension concerns cache speculation, which TCG does
4
not implement. Thus we can trivially enable this feature.
5
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20220506180242.216785-22-richard.henderson@linaro.org
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
---
11
docs/system/arm/emulation.rst | 1 +
12
target/arm/cpu64.c | 1 +
13
target/arm/cpu_tcg.c | 1 +
14
3 files changed, 3 insertions(+)
15
16
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
17
index XXXXXXX..XXXXXXX 100644
18
--- a/docs/system/arm/emulation.rst
19
+++ b/docs/system/arm/emulation.rst
20
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
21
- FEAT_CSV2_1p1 (Cache speculation variant 2, version 1.1)
22
- FEAT_CSV2_1p2 (Cache speculation variant 2, version 1.2)
23
- FEAT_CSV2_2 (Cache speculation variant 2, version 2)
24
+- FEAT_CSV3 (Cache speculation variant 3)
25
- FEAT_DIT (Data Independent Timing instructions)
26
- FEAT_DPB (DC CVAP instruction)
27
- FEAT_Debugv8p2 (Debug changes for v8.2)
28
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
29
index XXXXXXX..XXXXXXX 100644
30
--- a/target/arm/cpu64.c
31
+++ b/target/arm/cpu64.c
32
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
33
t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1); /* FEAT_SEL2 */
34
t = FIELD_DP64(t, ID_AA64PFR0, DIT, 1); /* FEAT_DIT */
35
t = FIELD_DP64(t, ID_AA64PFR0, CSV2, 2); /* FEAT_CSV2_2 */
36
+ t = FIELD_DP64(t, ID_AA64PFR0, CSV3, 1); /* FEAT_CSV3 */
37
cpu->isar.id_aa64pfr0 = t;
38
39
t = cpu->isar.id_aa64pfr1;
40
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
41
index XXXXXXX..XXXXXXX 100644
42
--- a/target/arm/cpu_tcg.c
43
+++ b/target/arm/cpu_tcg.c
44
@@ -XXX,XX +XXX,XX @@ void aa32_max_features(ARMCPU *cpu)
45
cpu->isar.id_pfr0 = t;
46
47
t = cpu->isar.id_pfr2;
48
+ t = FIELD_DP32(t, ID_PFR2, CSV3, 1); /* FEAT_CSV3 */
49
t = FIELD_DP32(t, ID_PFR2, SSBS, 1); /* FEAT_SSBS */
50
cpu->isar.id_pfr2 = t;
51
52
--
53
2.25.1
diff view generated by jsdifflib
New patch
[PULL 23/32] target/arm: Enable FEAT_DGH for -cpu max
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
This extension concerns not merging memory access, which TCG does
4
not implement. Thus we can trivially enable this feature.
5
Add a comment to handle_hint for the DGH instruction, but no code.
6
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Message-id: 20220506180242.216785-23-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
docs/system/arm/emulation.rst | 1 +
13
target/arm/cpu64.c | 1 +
14
target/arm/translate-a64.c | 1 +
15
3 files changed, 3 insertions(+)
16
17
diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst
18
index XXXXXXX..XXXXXXX 100644
19
--- a/docs/system/arm/emulation.rst
20
+++ b/docs/system/arm/emulation.rst
21
@@ -XXX,XX +XXX,XX @@ the following architecture extensions:
22
- FEAT_CSV2_1p2 (Cache speculation variant 2, version 1.2)
23
- FEAT_CSV2_2 (Cache speculation variant 2, version 2)
24
- FEAT_CSV3 (Cache speculation variant 3)
25
+- FEAT_DGH (Data gathering hint)
26
- FEAT_DIT (Data Independent Timing instructions)
27
- FEAT_DPB (DC CVAP instruction)
28
- FEAT_Debugv8p2 (Debug changes for v8.2)
29
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
30
index XXXXXXX..XXXXXXX 100644
31
--- a/target/arm/cpu64.c
32
+++ b/target/arm/cpu64.c
33
@@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj)
34
t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1); /* FEAT_SB */
35
t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1); /* FEAT_SPECRES */
36
t = FIELD_DP64(t, ID_AA64ISAR1, BF16, 1); /* FEAT_BF16 */
37
+ t = FIELD_DP64(t, ID_AA64ISAR1, DGH, 1); /* FEAT_DGH */
38
t = FIELD_DP64(t, ID_AA64ISAR1, I8MM, 1); /* FEAT_I8MM */
39
cpu->isar.id_aa64isar1 = t;
40
41
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
42
index XXXXXXX..XXXXXXX 100644
43
--- a/target/arm/translate-a64.c
44
+++ b/target/arm/translate-a64.c
45
@@ -XXX,XX +XXX,XX @@ static void handle_hint(DisasContext *s, uint32_t insn,
46
break;
47
case 0b00100: /* SEV */
48
case 0b00101: /* SEVL */
49
+ case 0b00110: /* DGH */
50
/* we treat all as NOP at least for now */
51
break;
52
case 0b00111: /* XPACLRI */
53
--
54
2.25.1
diff view generated by jsdifflib
New patch
[PULL 24/32] target/arm: Define cortex-a76
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Enable the a76 for virt and sbsa board use.
4
5
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Message-id: 20220506180242.216785-24-richard.henderson@linaro.org
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
---
10
docs/system/arm/virt.rst | 1 +
11
hw/arm/sbsa-ref.c | 1 +
12
hw/arm/virt.c | 1 +
13
target/arm/cpu64.c | 66 ++++++++++++++++++++++++++++++++++++++++
14
4 files changed, 69 insertions(+)
15
16
diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst
17
index XXXXXXX..XXXXXXX 100644
18
--- a/docs/system/arm/virt.rst
19
+++ b/docs/system/arm/virt.rst
20
@@ -XXX,XX +XXX,XX @@ Supported guest CPU types:
21
- ``cortex-a53`` (64-bit)
22
- ``cortex-a57`` (64-bit)
23
- ``cortex-a72`` (64-bit)
24
+- ``cortex-a76`` (64-bit)
25
- ``a64fx`` (64-bit)
26
- ``host`` (with KVM only)
27
- ``max`` (same as ``host`` for KVM; best possible emulation with TCG)
28
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
29
index XXXXXXX..XXXXXXX 100644
30
--- a/hw/arm/sbsa-ref.c
31
+++ b/hw/arm/sbsa-ref.c
32
@@ -XXX,XX +XXX,XX @@ static const int sbsa_ref_irqmap[] = {
33
static const char * const valid_cpus[] = {
34
ARM_CPU_TYPE_NAME("cortex-a57"),
35
ARM_CPU_TYPE_NAME("cortex-a72"),
36
+ ARM_CPU_TYPE_NAME("cortex-a76"),
37
ARM_CPU_TYPE_NAME("max"),
38
};
39
40
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
41
index XXXXXXX..XXXXXXX 100644
42
--- a/hw/arm/virt.c
43
+++ b/hw/arm/virt.c
44
@@ -XXX,XX +XXX,XX @@ static const char *valid_cpus[] = {
45
ARM_CPU_TYPE_NAME("cortex-a53"),
46
ARM_CPU_TYPE_NAME("cortex-a57"),
47
ARM_CPU_TYPE_NAME("cortex-a72"),
48
+ ARM_CPU_TYPE_NAME("cortex-a76"),
49
ARM_CPU_TYPE_NAME("a64fx"),
50
ARM_CPU_TYPE_NAME("host"),
51
ARM_CPU_TYPE_NAME("max"),
52
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
53
index XXXXXXX..XXXXXXX 100644
54
--- a/target/arm/cpu64.c
55
+++ b/target/arm/cpu64.c
56
@@ -XXX,XX +XXX,XX @@ static void aarch64_a72_initfn(Object *obj)
57
define_cortex_a72_a57_a53_cp_reginfo(cpu);
58
}
59
60
+static void aarch64_a76_initfn(Object *obj)
61
+{
62
+ ARMCPU *cpu = ARM_CPU(obj);
63
+
64
+ cpu->dtb_compatible = "arm,cortex-a76";
65
+ set_feature(&cpu->env, ARM_FEATURE_V8);
66
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
67
+ set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
68
+ set_feature(&cpu->env, ARM_FEATURE_AARCH64);
69
+ set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
70
+ set_feature(&cpu->env, ARM_FEATURE_EL2);
71
+ set_feature(&cpu->env, ARM_FEATURE_EL3);
72
+ set_feature(&cpu->env, ARM_FEATURE_PMU);
73
+
74
+ /* Ordered by B2.4 AArch64 registers by functional group */
75
+ cpu->clidr = 0x82000023;
76
+ cpu->ctr = 0x8444C004;
77
+ cpu->dcz_blocksize = 4;
78
+ cpu->isar.id_aa64dfr0 = 0x0000000010305408ull;
79
+ cpu->isar.id_aa64isar0 = 0x0000100010211120ull;
80
+ cpu->isar.id_aa64isar1 = 0x0000000000100001ull;
81
+ cpu->isar.id_aa64mmfr0 = 0x0000000000101122ull;
82
+ cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull;
83
+ cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull;
84
+ cpu->isar.id_aa64pfr0 = 0x1100000010111112ull; /* GIC filled in later */
85
+ cpu->isar.id_aa64pfr1 = 0x0000000000000010ull;
86
+ cpu->id_afr0 = 0x00000000;
87
+ cpu->isar.id_dfr0 = 0x04010088;
88
+ cpu->isar.id_isar0 = 0x02101110;
89
+ cpu->isar.id_isar1 = 0x13112111;
90
+ cpu->isar.id_isar2 = 0x21232042;
91
+ cpu->isar.id_isar3 = 0x01112131;
92
+ cpu->isar.id_isar4 = 0x00010142;
93
+ cpu->isar.id_isar5 = 0x01011121;
94
+ cpu->isar.id_isar6 = 0x00000010;
95
+ cpu->isar.id_mmfr0 = 0x10201105;
96
+ cpu->isar.id_mmfr1 = 0x40000000;
97
+ cpu->isar.id_mmfr2 = 0x01260000;
98
+ cpu->isar.id_mmfr3 = 0x02122211;
99
+ cpu->isar.id_mmfr4 = 0x00021110;
100
+ cpu->isar.id_pfr0 = 0x10010131;
101
+ cpu->isar.id_pfr1 = 0x00010000; /* GIC filled in later */
102
+ cpu->isar.id_pfr2 = 0x00000011;
103
+ cpu->midr = 0x414fd0b1; /* r4p1 */
104
+ cpu->revidr = 0;
105
+
106
+ /* From B2.18 CCSIDR_EL1 */
107
+ cpu->ccsidr[0] = 0x701fe01a; /* 64KB L1 dcache */
108
+ cpu->ccsidr[1] = 0x201fe01a; /* 64KB L1 icache */
109
+ cpu->ccsidr[2] = 0x707fe03a; /* 512KB L2 cache */
110
+
111
+ /* From B2.93 SCTLR_EL3 */
112
+ cpu->reset_sctlr = 0x30c50838;
113
+
114
+ /* From B4.23 ICH_VTR_EL2 */
115
+ cpu->gic_num_lrs = 4;
116
+ cpu->gic_vpribits = 5;
117
+ cpu->gic_vprebits = 5;
118
+
119
+ /* From B5.1 AdvSIMD AArch64 register summary */
120
+ cpu->isar.mvfr0 = 0x10110222;
121
+ cpu->isar.mvfr1 = 0x13211111;
122
+ cpu->isar.mvfr2 = 0x00000043;
123
+}
124
+
125
void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp)
126
{
127
/*
128
@@ -XXX,XX +XXX,XX @@ static const ARMCPUInfo aarch64_cpus[] = {
129
{ .name = "cortex-a57", .initfn = aarch64_a57_initfn },
130
{ .name = "cortex-a53", .initfn = aarch64_a53_initfn },
131
{ .name = "cortex-a72", .initfn = aarch64_a72_initfn },
132
+ { .name = "cortex-a76", .initfn = aarch64_a76_initfn },
133
{ .name = "a64fx", .initfn = aarch64_a64fx_initfn },
134
{ .name = "max", .initfn = aarch64_max_initfn },
135
#if defined(CONFIG_KVM) || defined(CONFIG_HVF)
136
--
137
2.25.1
diff view generated by jsdifflib
New patch
[PULL 25/32] target/arm: Define neoverse-n1
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Enable the n1 for virt and sbsa board use.
4
5
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
6
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
7
Message-id: 20220506180242.216785-25-richard.henderson@linaro.org
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
---
10
docs/system/arm/virt.rst | 1 +
11
hw/arm/sbsa-ref.c | 1 +
12
hw/arm/virt.c | 1 +
13
target/arm/cpu64.c | 66 ++++++++++++++++++++++++++++++++++++++++
14
4 files changed, 69 insertions(+)
15
16
diff --git a/docs/system/arm/virt.rst b/docs/system/arm/virt.rst
17
index XXXXXXX..XXXXXXX 100644
18
--- a/docs/system/arm/virt.rst
19
+++ b/docs/system/arm/virt.rst
20
@@ -XXX,XX +XXX,XX @@ Supported guest CPU types:
21
- ``cortex-a76`` (64-bit)
22
- ``a64fx`` (64-bit)
23
- ``host`` (with KVM only)
24
+- ``neoverse-n1`` (64-bit)
25
- ``max`` (same as ``host`` for KVM; best possible emulation with TCG)
26
27
Note that the default is ``cortex-a15``, so for an AArch64 guest you must
28
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
29
index XXXXXXX..XXXXXXX 100644
30
--- a/hw/arm/sbsa-ref.c
31
+++ b/hw/arm/sbsa-ref.c
32
@@ -XXX,XX +XXX,XX @@ static const char * const valid_cpus[] = {
33
ARM_CPU_TYPE_NAME("cortex-a57"),
34
ARM_CPU_TYPE_NAME("cortex-a72"),
35
ARM_CPU_TYPE_NAME("cortex-a76"),
36
+ ARM_CPU_TYPE_NAME("neoverse-n1"),
37
ARM_CPU_TYPE_NAME("max"),
38
};
39
40
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
41
index XXXXXXX..XXXXXXX 100644
42
--- a/hw/arm/virt.c
43
+++ b/hw/arm/virt.c
44
@@ -XXX,XX +XXX,XX @@ static const char *valid_cpus[] = {
45
ARM_CPU_TYPE_NAME("cortex-a72"),
46
ARM_CPU_TYPE_NAME("cortex-a76"),
47
ARM_CPU_TYPE_NAME("a64fx"),
48
+ ARM_CPU_TYPE_NAME("neoverse-n1"),
49
ARM_CPU_TYPE_NAME("host"),
50
ARM_CPU_TYPE_NAME("max"),
51
};
52
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
53
index XXXXXXX..XXXXXXX 100644
54
--- a/target/arm/cpu64.c
55
+++ b/target/arm/cpu64.c
56
@@ -XXX,XX +XXX,XX @@ static void aarch64_a76_initfn(Object *obj)
57
cpu->isar.mvfr2 = 0x00000043;
58
}
59
60
+static void aarch64_neoverse_n1_initfn(Object *obj)
61
+{
62
+ ARMCPU *cpu = ARM_CPU(obj);
63
+
64
+ cpu->dtb_compatible = "arm,neoverse-n1";
65
+ set_feature(&cpu->env, ARM_FEATURE_V8);
66
+ set_feature(&cpu->env, ARM_FEATURE_NEON);
67
+ set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
68
+ set_feature(&cpu->env, ARM_FEATURE_AARCH64);
69
+ set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
70
+ set_feature(&cpu->env, ARM_FEATURE_EL2);
71
+ set_feature(&cpu->env, ARM_FEATURE_EL3);
72
+ set_feature(&cpu->env, ARM_FEATURE_PMU);
73
+
74
+ /* Ordered by B2.4 AArch64 registers by functional group */
75
+ cpu->clidr = 0x82000023;
76
+ cpu->ctr = 0x8444c004;
77
+ cpu->dcz_blocksize = 4;
78
+ cpu->isar.id_aa64dfr0 = 0x0000000110305408ull;
79
+ cpu->isar.id_aa64isar0 = 0x0000100010211120ull;
80
+ cpu->isar.id_aa64isar1 = 0x0000000000100001ull;
81
+ cpu->isar.id_aa64mmfr0 = 0x0000000000101125ull;
82
+ cpu->isar.id_aa64mmfr1 = 0x0000000010212122ull;
83
+ cpu->isar.id_aa64mmfr2 = 0x0000000000001011ull;
84
+ cpu->isar.id_aa64pfr0 = 0x1100000010111112ull; /* GIC filled in later */
85
+ cpu->isar.id_aa64pfr1 = 0x0000000000000020ull;
86
+ cpu->id_afr0 = 0x00000000;
87
+ cpu->isar.id_dfr0 = 0x04010088;
88
+ cpu->isar.id_isar0 = 0x02101110;
89
+ cpu->isar.id_isar1 = 0x13112111;
90
+ cpu->isar.id_isar2 = 0x21232042;
91
+ cpu->isar.id_isar3 = 0x01112131;
92
+ cpu->isar.id_isar4 = 0x00010142;
93
+ cpu->isar.id_isar5 = 0x01011121;
94
+ cpu->isar.id_isar6 = 0x00000010;
95
+ cpu->isar.id_mmfr0 = 0x10201105;
96
+ cpu->isar.id_mmfr1 = 0x40000000;
97
+ cpu->isar.id_mmfr2 = 0x01260000;
98
+ cpu->isar.id_mmfr3 = 0x02122211;
99
+ cpu->isar.id_mmfr4 = 0x00021110;
100
+ cpu->isar.id_pfr0 = 0x10010131;
101
+ cpu->isar.id_pfr1 = 0x00010000; /* GIC filled in later */
102
+ cpu->isar.id_pfr2 = 0x00000011;
103
+ cpu->midr = 0x414fd0c1; /* r4p1 */
104
+ cpu->revidr = 0;
105
+
106
+ /* From B2.23 CCSIDR_EL1 */
107
+ cpu->ccsidr[0] = 0x701fe01a; /* 64KB L1 dcache */
108
+ cpu->ccsidr[1] = 0x201fe01a; /* 64KB L1 icache */
109
+ cpu->ccsidr[2] = 0x70ffe03a; /* 1MB L2 cache */
110
+
111
+ /* From B2.98 SCTLR_EL3 */
112
+ cpu->reset_sctlr = 0x30c50838;
113
+
114
+ /* From B4.23 ICH_VTR_EL2 */
115
+ cpu->gic_num_lrs = 4;
116
+ cpu->gic_vpribits = 5;
117
+ cpu->gic_vprebits = 5;
118
+
119
+ /* From B5.1 AdvSIMD AArch64 register summary */
120
+ cpu->isar.mvfr0 = 0x10110222;
121
+ cpu->isar.mvfr1 = 0x13211111;
122
+ cpu->isar.mvfr2 = 0x00000043;
123
+}
124
+
125
void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp)
126
{
127
/*
128
@@ -XXX,XX +XXX,XX @@ static const ARMCPUInfo aarch64_cpus[] = {
129
{ .name = "cortex-a72", .initfn = aarch64_a72_initfn },
130
{ .name = "cortex-a76", .initfn = aarch64_a76_initfn },
131
{ .name = "a64fx", .initfn = aarch64_a64fx_initfn },
132
+ { .name = "neoverse-n1", .initfn = aarch64_neoverse_n1_initfn },
133
{ .name = "max", .initfn = aarch64_max_initfn },
134
#if defined(CONFIG_KVM) || defined(CONFIG_HVF)
135
{ .name = "host", .initfn = aarch64_host_initfn },
136
--
137
2.25.1
diff view generated by jsdifflib
[PULL 1/7] pl031: Expose RTCICR as proper WC register
[PULL 26/32] hw/arm: add versioning to sbsa-ref machine DT
1
From: Alexander Graf <graf@amazon.com>
1
From: Leif Lindholm <quic_llindhol@quicinc.com>
2
2
3
The current PL031 RTCICR register implementation always clears the
3
The sbsa-ref machine is continuously evolving. Some of the changes we
4
IRQ pending status on a register write, regardless of the value the
4
want to make in the near future, to align with real components (e.g.
5
guest writes.
5
the GIC-700), will break compatibility for existing firmware.
6
6
7
To justify that behavior, it references the ARM926EJ-S Development
7
Introduce two new properties to the DT generated on machine generation:
8
Chip Reference Manual (DDI0287B) and indicates that said document
8
- machine-version-major
9
states that any write clears the internal IRQ state. It is indeed
9
To be incremented when a platform change makes the machine
10
true that in section 11.1 this document says:
10
incompatible with existing firmware.
11
- machine-version-minor
12
To be incremented when functionality is added to the machine
13
without causing incompatibility with existing firmware.
14
to be reset to 0 when machine-version-major is incremented.
11
15
12
"The interrupt is cleared by writing any data value to the
16
This versioning scheme is *neither*:
13
interrupt clear register RTCICR".
17
- A QEMU versioned machine type; a given version of QEMU will emulate
18
a given version of the platform.
19
- A reflection of level of SBSA (now SystemReady SR) support provided.
14
20
15
However, later in section 11.2.2 it contradicts itself by saying:
21
The version will increment on guest-visible functional changes only,
22
akin to a revision ID register found on a physical platform.
16
23
17
"Writing 1 to bit 0 of RTCICR clears the RTCINTR flag."
24
These properties are both introduced with the value 0.
25
(Hence, a machine where the DT is lacking these nodes is equivalent
26
to version 0.0.)
18
27
19
The latter statement matches the PL031 TRM (DDI0224C), which says:
28
Signed-off-by: Leif Lindholm <quic_llindhol@quicinc.com>
20
29
Message-id: 20220505113947.75714-1-quic_llindhol@quicinc.com
21
"Writing 1 to bit position 0 clears the corresponding interrupt.
30
Cc: Peter Maydell <peter.maydell@linaro.org>
22
Writing 0 has no effect."
31
Cc: Radoslaw Biernacki <rad@semihalf.com>
23
32
Cc: Cédric Le Goater <clg@kaod.org>
24
Let's assume that the self-contradictory DDI0287B is in error, and
25
follow the reference manual for the device itself, by making the
26
register write-one-to-clear.
27
28
Reported-by: Hendrik Borghorst <hborghor@amazon.de>
29
Signed-off-by: Alexander Graf <graf@amazon.com>
30
Message-id: 20191104115228.30745-1-graf@amazon.com
31
[PMM: updated commit message to note that DDI0287B says two
32
conflicting things]
33
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
33
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
34
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
34
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
35
---
35
---
36
hw/rtc/pl031.c | 6 +-----
36
hw/arm/sbsa-ref.c | 14 ++++++++++++++
37
1 file changed, 1 insertion(+), 5 deletions(-)
37
1 file changed, 14 insertions(+)
38
38
39
diff --git a/hw/rtc/pl031.c b/hw/rtc/pl031.c
39
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
40
index XXXXXXX..XXXXXXX 100644
40
index XXXXXXX..XXXXXXX 100644
41
--- a/hw/rtc/pl031.c
41
--- a/hw/arm/sbsa-ref.c
42
+++ b/hw/rtc/pl031.c
42
+++ b/hw/arm/sbsa-ref.c
43
@@ -XXX,XX +XXX,XX @@ static void pl031_write(void * opaque, hwaddr offset,
43
@@ -XXX,XX +XXX,XX @@ static void create_fdt(SBSAMachineState *sms)
44
pl031_update(s);
44
qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2);
45
break;
45
qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2);
46
case RTC_ICR:
46
47
- /* The PL031 documentation (DDI0224B) states that the interrupt is
47
+ /*
48
- cleared when bit 0 of the written value is set. However the
48
+ * This versioning scheme is for informing platform fw only. It is neither:
49
- arm926e documentation (DDI0287B) states that the interrupt is
49
+ * - A QEMU versioned machine type; a given version of QEMU will emulate
50
- cleared when any value is written. */
50
+ * a given version of the platform.
51
- s->is = 0;
51
+ * - A reflection of level of SBSA (now SystemReady SR) support provided.
52
+ s->is &= ~value;
52
+ *
53
pl031_update(s);
53
+ * machine-version-major: updated when changes breaking fw compatibility
54
break;
54
+ * are introduced.
55
case RTC_CR:
55
+ * machine-version-minor: updated when features are added that don't break
56
+ * fw compatibility.
57
+ */
58
+ qemu_fdt_setprop_cell(fdt, "/", "machine-version-major", 0);
59
+ qemu_fdt_setprop_cell(fdt, "/", "machine-version-minor", 0);
60
+
61
if (ms->numa_state->have_numa_distance) {
62
int size = nb_numa_nodes * nb_numa_nodes * 3 * sizeof(uint32_t);
63
uint32_t *matrix = g_malloc0(size);
56
--
64
--
57
2.20.1
65
2.25.1
58
66
59
67
diff view generated by jsdifflib
New patch
[PULL 27/32] qapi/machine.json: Add cluster-id
1
From: Gavin Shan <gshan@redhat.com>
1
2
3
This adds cluster-id in CPU instance properties, which will be used
4
by arm/virt machine. Besides, the cluster-id is also verified or
5
dumped in various spots:
6
7
* hw/core/machine.c::machine_set_cpu_numa_node() to associate
8
CPU with its NUMA node.
9
10
* hw/core/machine.c::machine_numa_finish_cpu_init() to record
11
CPU slots with no NUMA mapping set.
12
13
* hw/core/machine-hmp-cmds.c::hmp_hotpluggable_cpus() to dump
14
cluster-id.
15
16
Signed-off-by: Gavin Shan <gshan@redhat.com>
17
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
18
Acked-by: Igor Mammedov <imammedo@redhat.com>
19
Message-id: 20220503140304.855514-2-gshan@redhat.com
20
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
21
---
22
qapi/machine.json | 6 ++++--
23
hw/core/machine-hmp-cmds.c | 4 ++++
24
hw/core/machine.c | 16 ++++++++++++++++
25
3 files changed, 24 insertions(+), 2 deletions(-)
26
27
diff --git a/qapi/machine.json b/qapi/machine.json
28
index XXXXXXX..XXXXXXX 100644
29
--- a/qapi/machine.json
30
+++ b/qapi/machine.json
31
@@ -XXX,XX +XXX,XX @@
32
# @node-id: NUMA node ID the CPU belongs to
33
# @socket-id: socket number within node/board the CPU belongs to
34
# @die-id: die number within socket the CPU belongs to (since 4.1)
35
-# @core-id: core number within die the CPU belongs to
36
+# @cluster-id: cluster number within die the CPU belongs to (since 7.1)
37
+# @core-id: core number within cluster the CPU belongs to
38
# @thread-id: thread number within core the CPU belongs to
39
#
40
-# Note: currently there are 5 properties that could be present
41
+# Note: currently there are 6 properties that could be present
42
# but management should be prepared to pass through other
43
# properties with device_add command to allow for future
44
# interface extension. This also requires the filed names to be kept in
45
@@ -XXX,XX +XXX,XX @@
46
'data': { '*node-id': 'int',
47
'*socket-id': 'int',
48
'*die-id': 'int',
49
+ '*cluster-id': 'int',
50
'*core-id': 'int',
51
'*thread-id': 'int'
52
}
53
diff --git a/hw/core/machine-hmp-cmds.c b/hw/core/machine-hmp-cmds.c
54
index XXXXXXX..XXXXXXX 100644
55
--- a/hw/core/machine-hmp-cmds.c
56
+++ b/hw/core/machine-hmp-cmds.c
57
@@ -XXX,XX +XXX,XX @@ void hmp_hotpluggable_cpus(Monitor *mon, const QDict *qdict)
58
if (c->has_die_id) {
59
monitor_printf(mon, " die-id: \"%" PRIu64 "\"\n", c->die_id);
60
}
61
+ if (c->has_cluster_id) {
62
+ monitor_printf(mon, " cluster-id: \"%" PRIu64 "\"\n",
63
+ c->cluster_id);
64
+ }
65
if (c->has_core_id) {
66
monitor_printf(mon, " core-id: \"%" PRIu64 "\"\n", c->core_id);
67
}
68
diff --git a/hw/core/machine.c b/hw/core/machine.c
69
index XXXXXXX..XXXXXXX 100644
70
--- a/hw/core/machine.c
71
+++ b/hw/core/machine.c
72
@@ -XXX,XX +XXX,XX @@ void machine_set_cpu_numa_node(MachineState *machine,
73
return;
74
}
75
76
+ if (props->has_cluster_id && !slot->props.has_cluster_id) {
77
+ error_setg(errp, "cluster-id is not supported");
78
+ return;
79
+ }
80
+
81
if (props->has_socket_id && !slot->props.has_socket_id) {
82
error_setg(errp, "socket-id is not supported");
83
return;
84
@@ -XXX,XX +XXX,XX @@ void machine_set_cpu_numa_node(MachineState *machine,
85
continue;
86
}
87
88
+ if (props->has_cluster_id &&
89
+ props->cluster_id != slot->props.cluster_id) {
90
+ continue;
91
+ }
92
+
93
if (props->has_die_id && props->die_id != slot->props.die_id) {
94
continue;
95
}
96
@@ -XXX,XX +XXX,XX @@ static char *cpu_slot_to_string(const CPUArchId *cpu)
97
}
98
g_string_append_printf(s, "die-id: %"PRId64, cpu->props.die_id);
99
}
100
+ if (cpu->props.has_cluster_id) {
101
+ if (s->len) {
102
+ g_string_append_printf(s, ", ");
103
+ }
104
+ g_string_append_printf(s, "cluster-id: %"PRId64, cpu->props.cluster_id);
105
+ }
106
if (cpu->props.has_core_id) {
107
if (s->len) {
108
g_string_append_printf(s, ", ");
109
--
110
2.25.1
diff view generated by jsdifflib
[PULL 3/7] ssi: xilinx_spips: Skip spi bus update for a few register writes
[PULL 28/32] qtest/numa-test: Specify CPU topology in aarch64_numa_cpu()
1
From: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
1
From: Gavin Shan <gshan@redhat.com>
2
2
3
A few configuration register writes need not update the spi bus state, so just
3
The CPU topology isn't enabled on arm/virt machine yet, but we're
4
return after the register write.
4
going to do it in next patch. After the CPU topology is enabled by
5
next patch, "thread-id=1" becomes invalid because the CPU core is
6
preferred on arm/virt machine. It means these two CPUs have 0/1
7
as their core IDs, but their thread IDs are all 0. It will trigger
8
test failure as the following message indicates:
5
9
6
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
10
[14/21 qemu:qtest+qtest-aarch64 / qtest-aarch64/numa-test ERROR
7
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
11
1.48s killed by signal 6 SIGABRT
8
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
12
>>> G_TEST_DBUS_DAEMON=/home/gavin/sandbox/qemu.main/tests/dbus-vmstate-daemon.sh \
9
Tested-by: Francisco Iglesias <frasse.iglesias@gmail.com>
13
QTEST_QEMU_STORAGE_DAEMON_BINARY=./storage-daemon/qemu-storage-daemon \
10
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
14
QTEST_QEMU_BINARY=./qemu-system-aarch64 \
11
Message-id: 1573830705-14579-1-git-send-email-sai.pavan.boddu@xilinx.com
15
QTEST_QEMU_IMG=./qemu-img MALLOC_PERTURB_=83 \
16
/home/gavin/sandbox/qemu.main/build/tests/qtest/numa-test --tap -k
17
――――――――――――――――――――――――――――――――――――――――――――――
18
stderr:
19
qemu-system-aarch64: -numa cpu,node-id=0,thread-id=1: no match found
20
21
This fixes the issue by providing comprehensive SMP configurations
22
in aarch64_numa_cpu(). The SMP configurations aren't used before
23
the CPU topology is enabled in next patch.
24
25
Signed-off-by: Gavin Shan <gshan@redhat.com>
26
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
27
Message-id: 20220503140304.855514-3-gshan@redhat.com
12
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
28
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
13
---
29
---
14
hw/ssi/xilinx_spips.c | 22 ++++++++++++++++++----
30
tests/qtest/numa-test.c | 3 ++-
15
1 file changed, 18 insertions(+), 4 deletions(-)
31
1 file changed, 2 insertions(+), 1 deletion(-)
16
32
17
diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c
33
diff --git a/tests/qtest/numa-test.c b/tests/qtest/numa-test.c
18
index XXXXXXX..XXXXXXX 100644
34
index XXXXXXX..XXXXXXX 100644
19
--- a/hw/ssi/xilinx_spips.c
35
--- a/tests/qtest/numa-test.c
20
+++ b/hw/ssi/xilinx_spips.c
36
+++ b/tests/qtest/numa-test.c
21
@@ -XXX,XX +XXX,XX @@
37
@@ -XXX,XX +XXX,XX @@ static void aarch64_numa_cpu(const void *data)
22
#define R_GPIO (0x30 / 4)
38
QTestState *qts;
23
#define R_LPBK_DLY_ADJ (0x38 / 4)
39
g_autofree char *cli = NULL;
24
#define R_LPBK_DLY_ADJ_RESET (0x33)
40
25
+#define R_IOU_TAPDLY_BYPASS (0x3C / 4)
41
- cli = make_cli(data, "-machine smp.cpus=2 "
26
#define R_TXD1 (0x80 / 4)
42
+ cli = make_cli(data, "-machine "
27
#define R_TXD2 (0x84 / 4)
43
+ "smp.cpus=2,smp.sockets=1,smp.clusters=1,smp.cores=1,smp.threads=2 "
28
#define R_TXD3 (0x88 / 4)
44
"-numa node,nodeid=0,memdev=ram -numa node,nodeid=1 "
29
@@ -XXX,XX +XXX,XX @@
45
"-numa cpu,node-id=1,thread-id=0 "
30
#define R_LQSPI_STS (0xA4 / 4)
46
"-numa cpu,node-id=0,thread-id=1");
31
#define LQSPI_STS_WR_RECVD (1 << 1)
32
33
+#define R_DUMMY_CYCLE_EN (0xC8 / 4)
34
+#define R_ECO (0xF8 / 4)
35
#define R_MOD_ID (0xFC / 4)
36
37
#define R_GQSPI_SELECT (0x144 / 4)
38
@@ -XXX,XX +XXX,XX @@ static void xilinx_spips_write(void *opaque, hwaddr addr,
39
{
40
int mask = ~0;
41
XilinxSPIPS *s = opaque;
42
+ bool try_flush = true;
43
44
DB_PRINT_L(0, "addr=" TARGET_FMT_plx " = %x\n", addr, (unsigned)value);
45
addr >>= 2;
46
@@ -XXX,XX +XXX,XX @@ static void xilinx_spips_write(void *opaque, hwaddr addr,
47
tx_data_bytes(&s->tx_fifo, (uint32_t)value, 3,
48
s->regs[R_CONFIG] & R_CONFIG_ENDIAN);
49
goto no_reg_update;
50
+ /* Skip SPI bus update for below registers writes */
51
+ case R_GPIO:
52
+ case R_LPBK_DLY_ADJ:
53
+ case R_IOU_TAPDLY_BYPASS:
54
+ case R_DUMMY_CYCLE_EN:
55
+ case R_ECO:
56
+ try_flush = false;
57
+ break;
58
}
59
s->regs[addr] = (s->regs[addr] & ~mask) | (value & mask);
60
no_reg_update:
61
- xilinx_spips_update_cs_lines(s);
62
- xilinx_spips_check_flush(s);
63
- xilinx_spips_update_cs_lines(s);
64
- xilinx_spips_update_ixr(s);
65
+ if (try_flush) {
66
+ xilinx_spips_update_cs_lines(s);
67
+ xilinx_spips_check_flush(s);
68
+ xilinx_spips_update_cs_lines(s);
69
+ xilinx_spips_update_ixr(s);
70
+ }
71
}
72
73
static const MemoryRegionOps spips_ops = {
74
--
47
--
75
2.20.1
48
2.25.1
76
49
77
50
diff view generated by jsdifflib
New patch
[PULL 29/32] hw/arm/virt: Consider SMP configuration in CPU topology
1
From: Gavin Shan <gshan@redhat.com>
1
2
3
Currently, the SMP configuration isn't considered when the CPU
4
topology is populated. In this case, it's impossible to provide
5
the default CPU-to-NUMA mapping or association based on the socket
6
ID of the given CPU.
7
8
This takes account of SMP configuration when the CPU topology
9
is populated. The die ID for the given CPU isn't assigned since
10
it's not supported on arm/virt machine. Besides, the used SMP
11
configuration in qtest/numa-test/aarch64_numa_cpu() is corrcted
12
to avoid testing failure
13
14
Signed-off-by: Gavin Shan <gshan@redhat.com>
15
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
16
Acked-by: Igor Mammedov <imammedo@redhat.com>
17
Message-id: 20220503140304.855514-4-gshan@redhat.com
18
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
19
---
20
hw/arm/virt.c | 15 ++++++++++++++-
21
1 file changed, 14 insertions(+), 1 deletion(-)
22
23
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
24
index XXXXXXX..XXXXXXX 100644
25
--- a/hw/arm/virt.c
26
+++ b/hw/arm/virt.c
27
@@ -XXX,XX +XXX,XX @@ static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
28
int n;
29
unsigned int max_cpus = ms->smp.max_cpus;
30
VirtMachineState *vms = VIRT_MACHINE(ms);
31
+ MachineClass *mc = MACHINE_GET_CLASS(vms);
32
33
if (ms->possible_cpus) {
34
assert(ms->possible_cpus->len == max_cpus);
35
@@ -XXX,XX +XXX,XX @@ static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
36
ms->possible_cpus->cpus[n].type = ms->cpu_type;
37
ms->possible_cpus->cpus[n].arch_id =
38
virt_cpu_mp_affinity(vms, n);
39
+
40
+ assert(!mc->smp_props.dies_supported);
41
+ ms->possible_cpus->cpus[n].props.has_socket_id = true;
42
+ ms->possible_cpus->cpus[n].props.socket_id =
43
+ n / (ms->smp.clusters * ms->smp.cores * ms->smp.threads);
44
+ ms->possible_cpus->cpus[n].props.has_cluster_id = true;
45
+ ms->possible_cpus->cpus[n].props.cluster_id =
46
+ (n / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters;
47
+ ms->possible_cpus->cpus[n].props.has_core_id = true;
48
+ ms->possible_cpus->cpus[n].props.core_id =
49
+ (n / ms->smp.threads) % ms->smp.cores;
50
ms->possible_cpus->cpus[n].props.has_thread_id = true;
51
- ms->possible_cpus->cpus[n].props.thread_id = n;
52
+ ms->possible_cpus->cpus[n].props.thread_id =
53
+ n % ms->smp.threads;
54
}
55
return ms->possible_cpus;
56
}
57
--
58
2.25.1
diff view generated by jsdifflib
New patch
[PULL 30/32] qtest/numa-test: Correct CPU and NUMA association in aarch64_numa_cpu()
1
From: Gavin Shan <gshan@redhat.com>
1
2
3
In aarch64_numa_cpu(), the CPU and NUMA association is something
4
like below. Two threads in the same core/cluster/socket are
5
associated with two individual NUMA nodes, which is unreal as
6
Igor Mammedov mentioned. We don't expect the association to break
7
NUMA-to-socket boundary, which matches with the real world.
8
9
NUMA-node socket cluster core thread
10
------------------------------------------
11
0 0 0 0 0
12
1 0 0 0 1
13
14
This corrects the topology for CPUs and their association with
15
NUMA nodes. After this patch is applied, the CPU and NUMA
16
association becomes something like below, which looks real.
17
Besides, socket/cluster/core/thread IDs are all checked when
18
the NUMA node IDs are verified. It helps to check if the CPU
19
topology is properly populated or not.
20
21
NUMA-node socket cluster core thread
22
------------------------------------------
23
0 1 0 0 0
24
1 0 0 0 0
25
26
Suggested-by: Igor Mammedov <imammedo@redhat.com>
27
Signed-off-by: Gavin Shan <gshan@redhat.com>
28
Acked-by: Igor Mammedov <imammedo@redhat.com>
29
Message-id: 20220503140304.855514-5-gshan@redhat.com
30
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
31
---
32
tests/qtest/numa-test.c | 18 ++++++++++++------
33
1 file changed, 12 insertions(+), 6 deletions(-)
34
35
diff --git a/tests/qtest/numa-test.c b/tests/qtest/numa-test.c
36
index XXXXXXX..XXXXXXX 100644
37
--- a/tests/qtest/numa-test.c
38
+++ b/tests/qtest/numa-test.c
39
@@ -XXX,XX +XXX,XX @@ static void aarch64_numa_cpu(const void *data)
40
g_autofree char *cli = NULL;
41
42
cli = make_cli(data, "-machine "
43
- "smp.cpus=2,smp.sockets=1,smp.clusters=1,smp.cores=1,smp.threads=2 "
44
+ "smp.cpus=2,smp.sockets=2,smp.clusters=1,smp.cores=1,smp.threads=1 "
45
"-numa node,nodeid=0,memdev=ram -numa node,nodeid=1 "
46
- "-numa cpu,node-id=1,thread-id=0 "
47
- "-numa cpu,node-id=0,thread-id=1");
48
+ "-numa cpu,node-id=0,socket-id=1,cluster-id=0,core-id=0,thread-id=0 "
49
+ "-numa cpu,node-id=1,socket-id=0,cluster-id=0,core-id=0,thread-id=0");
50
qts = qtest_init(cli);
51
cpus = get_cpus(qts, &resp);
52
g_assert(cpus);
53
54
while ((e = qlist_pop(cpus))) {
55
QDict *cpu, *props;
56
- int64_t thread, node;
57
+ int64_t socket, cluster, core, thread, node;
58
59
cpu = qobject_to(QDict, e);
60
g_assert(qdict_haskey(cpu, "props"));
61
@@ -XXX,XX +XXX,XX @@ static void aarch64_numa_cpu(const void *data)
62
63
g_assert(qdict_haskey(props, "node-id"));
64
node = qdict_get_int(props, "node-id");
65
+ g_assert(qdict_haskey(props, "socket-id"));
66
+ socket = qdict_get_int(props, "socket-id");
67
+ g_assert(qdict_haskey(props, "cluster-id"));
68
+ cluster = qdict_get_int(props, "cluster-id");
69
+ g_assert(qdict_haskey(props, "core-id"));
70
+ core = qdict_get_int(props, "core-id");
71
g_assert(qdict_haskey(props, "thread-id"));
72
thread = qdict_get_int(props, "thread-id");
73
74
- if (thread == 0) {
75
+ if (socket == 0 && cluster == 0 && core == 0 && thread == 0) {
76
g_assert_cmpint(node, ==, 1);
77
- } else if (thread == 1) {
78
+ } else if (socket == 1 && cluster == 0 && core == 0 && thread == 0) {
79
g_assert_cmpint(node, ==, 0);
80
} else {
81
g_assert(false);
82
--
83
2.25.1
diff view generated by jsdifflib
New patch
[PULL 31/32] hw/arm/virt: Fix CPU's default NUMA node ID
1
From: Gavin Shan <gshan@redhat.com>
1
2
3
When CPU-to-NUMA association isn't explicitly provided by users,
4
the default one is given by mc->get_default_cpu_node_id(). However,
5
the CPU topology isn't fully considered in the default association
6
and this causes CPU topology broken warnings on booting Linux guest.
7
8
For example, the following warning messages are observed when the
9
Linux guest is booted with the following command lines.
10
11
/home/gavin/sandbox/qemu.main/build/qemu-system-aarch64 \
12
-accel kvm -machine virt,gic-version=host \
13
-cpu host \
14
-smp 6,sockets=2,cores=3,threads=1 \
15
-m 1024M,slots=16,maxmem=64G \
16
-object memory-backend-ram,id=mem0,size=128M \
17
-object memory-backend-ram,id=mem1,size=128M \
18
-object memory-backend-ram,id=mem2,size=128M \
19
-object memory-backend-ram,id=mem3,size=128M \
20
-object memory-backend-ram,id=mem4,size=128M \
21
-object memory-backend-ram,id=mem4,size=384M \
22
-numa node,nodeid=0,memdev=mem0 \
23
-numa node,nodeid=1,memdev=mem1 \
24
-numa node,nodeid=2,memdev=mem2 \
25
-numa node,nodeid=3,memdev=mem3 \
26
-numa node,nodeid=4,memdev=mem4 \
27
-numa node,nodeid=5,memdev=mem5
28
:
29
alternatives: patching kernel code
30
BUG: arch topology borken
31
the CLS domain not a subset of the MC domain
32
<the above error log repeats>
33
BUG: arch topology borken
34
the DIE domain not a subset of the NODE domain
35
36
With current implementation of mc->get_default_cpu_node_id(),
37
CPU#0 to CPU#5 are associated with NODE#0 to NODE#5 separately.
38
That's incorrect because CPU#0/1/2 should be associated with same
39
NUMA node because they're seated in same socket.
40
41
This fixes the issue by considering the socket ID when the default
42
CPU-to-NUMA association is provided in virt_possible_cpu_arch_ids().
43
With this applied, no more CPU topology broken warnings are seen
44
from the Linux guest. The 6 CPUs are associated with NODE#0/1, but
45
there are no CPUs associated with NODE#2/3/4/5.
46
47
Signed-off-by: Gavin Shan <gshan@redhat.com>
48
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
49
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
50
Message-id: 20220503140304.855514-6-gshan@redhat.com
51
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
52
---
53
hw/arm/virt.c | 4 +++-
54
1 file changed, 3 insertions(+), 1 deletion(-)
55
56
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
57
index XXXXXXX..XXXXXXX 100644
58
--- a/hw/arm/virt.c
59
+++ b/hw/arm/virt.c
60
@@ -XXX,XX +XXX,XX @@ virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index)
61
62
static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx)
63
{
64
- return idx % ms->numa_state->num_nodes;
65
+ int64_t socket_id = ms->possible_cpus->cpus[idx].props.socket_id;
66
+
67
+ return socket_id % ms->numa_state->num_nodes;
68
}
69
70
static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
71
--
72
2.25.1
diff view generated by jsdifflib
New patch
[PULL 32/32] hw/acpi/aml-build: Use existing CPU topology to build PPTT table
1
From: Gavin Shan <gshan@redhat.com>
1
2
3
When the PPTT table is built, the CPU topology is re-calculated, but
4
it's unecessary because the CPU topology has been populated in
5
virt_possible_cpu_arch_ids() on arm/virt machine.
6
7
This reworks build_pptt() to avoid by reusing the existing IDs in
8
ms->possible_cpus. Currently, the only user of build_pptt() is
9
arm/virt machine.
10
11
Signed-off-by: Gavin Shan <gshan@redhat.com>
12
Tested-by: Yanan Wang <wangyanan55@huawei.com>
13
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
14
Acked-by: Igor Mammedov <imammedo@redhat.com>
15
Acked-by: Michael S. Tsirkin <mst@redhat.com>
16
Message-id: 20220503140304.855514-7-gshan@redhat.com
17
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
18
---
19
hw/acpi/aml-build.c | 111 +++++++++++++++++++-------------------------
20
1 file changed, 48 insertions(+), 63 deletions(-)
21
22
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
23
index XXXXXXX..XXXXXXX 100644
24
--- a/hw/acpi/aml-build.c
25
+++ b/hw/acpi/aml-build.c
26
@@ -XXX,XX +XXX,XX @@ void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms,
27
const char *oem_id, const char *oem_table_id)
28
{
29
MachineClass *mc = MACHINE_GET_CLASS(ms);
30
- GQueue *list = g_queue_new();
31
- guint pptt_start = table_data->len;
32
- guint parent_offset;
33
- guint length, i;
34
- int uid = 0;
35
- int socket;
36
+ CPUArchIdList *cpus = ms->possible_cpus;
37
+ int64_t socket_id = -1, cluster_id = -1, core_id = -1;
38
+ uint32_t socket_offset = 0, cluster_offset = 0, core_offset = 0;
39
+ uint32_t pptt_start = table_data->len;
40
+ int n;
41
AcpiTable table = { .sig = "PPTT", .rev = 2,
42
.oem_id = oem_id, .oem_table_id = oem_table_id };
43
44
acpi_table_begin(&table, table_data);
45
46
- for (socket = 0; socket < ms->smp.sockets; socket++) {
47
- g_queue_push_tail(list,
48
- GUINT_TO_POINTER(table_data->len - pptt_start));
49
- build_processor_hierarchy_node(
50
- table_data,
51
- /*
52
- * Physical package - represents the boundary
53
- * of a physical package
54
- */
55
- (1 << 0),
56
- 0, socket, NULL, 0);
57
- }
58
-
59
- if (mc->smp_props.clusters_supported) {
60
- length = g_queue_get_length(list);
61
- for (i = 0; i < length; i++) {
62
- int cluster;
63
-
64
- parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list));
65
- for (cluster = 0; cluster < ms->smp.clusters; cluster++) {
66
- g_queue_push_tail(list,
67
- GUINT_TO_POINTER(table_data->len - pptt_start));
68
- build_processor_hierarchy_node(
69
- table_data,
70
- (0 << 0), /* not a physical package */
71
- parent_offset, cluster, NULL, 0);
72
- }
73
+ /*
74
+ * This works with the assumption that cpus[n].props.*_id has been
75
+ * sorted from top to down levels in mc->possible_cpu_arch_ids().
76
+ * Otherwise, the unexpected and duplicated containers will be
77
+ * created.
78
+ */
79
+ for (n = 0; n < cpus->len; n++) {
80
+ if (cpus->cpus[n].props.socket_id != socket_id) {
81
+ assert(cpus->cpus[n].props.socket_id > socket_id);
82
+ socket_id = cpus->cpus[n].props.socket_id;
83
+ cluster_id = -1;
84
+ core_id = -1;
85
+ socket_offset = table_data->len - pptt_start;
86
+ build_processor_hierarchy_node(table_data,
87
+ (1 << 0), /* Physical package */
88
+ 0, socket_id, NULL, 0);
89
}
90
- }
91
92
- length = g_queue_get_length(list);
93
- for (i = 0; i < length; i++) {
94
- int core;
95
-
96
- parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list));
97
- for (core = 0; core < ms->smp.cores; core++) {
98
- if (ms->smp.threads > 1) {
99
- g_queue_push_tail(list,
100
- GUINT_TO_POINTER(table_data->len - pptt_start));
101
- build_processor_hierarchy_node(
102
- table_data,
103
- (0 << 0), /* not a physical package */
104
- parent_offset, core, NULL, 0);
105
- } else {
106
- build_processor_hierarchy_node(
107
- table_data,
108
- (1 << 1) | /* ACPI Processor ID valid */
109
- (1 << 3), /* Node is a Leaf */
110
- parent_offset, uid++, NULL, 0);
111
+ if (mc->smp_props.clusters_supported) {
112
+ if (cpus->cpus[n].props.cluster_id != cluster_id) {
113
+ assert(cpus->cpus[n].props.cluster_id > cluster_id);
114
+ cluster_id = cpus->cpus[n].props.cluster_id;
115
+ core_id = -1;
116
+ cluster_offset = table_data->len - pptt_start;
117
+ build_processor_hierarchy_node(table_data,
118
+ (0 << 0), /* Not a physical package */
119
+ socket_offset, cluster_id, NULL, 0);
120
}
121
+ } else {
122
+ cluster_offset = socket_offset;
123
}
124
- }
125
126
- length = g_queue_get_length(list);
127
- for (i = 0; i < length; i++) {
128
- int thread;
129
+ if (ms->smp.threads == 1) {
130
+ build_processor_hierarchy_node(table_data,
131
+ (1 << 1) | /* ACPI Processor ID valid */
132
+ (1 << 3), /* Node is a Leaf */
133
+ cluster_offset, n, NULL, 0);
134
+ } else {
135
+ if (cpus->cpus[n].props.core_id != core_id) {
136
+ assert(cpus->cpus[n].props.core_id > core_id);
137
+ core_id = cpus->cpus[n].props.core_id;
138
+ core_offset = table_data->len - pptt_start;
139
+ build_processor_hierarchy_node(table_data,
140
+ (0 << 0), /* Not a physical package */
141
+ cluster_offset, core_id, NULL, 0);
142
+ }
143
144
- parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list));
145
- for (thread = 0; thread < ms->smp.threads; thread++) {
146
- build_processor_hierarchy_node(
147
- table_data,
148
+ build_processor_hierarchy_node(table_data,
149
(1 << 1) | /* ACPI Processor ID valid */
150
(1 << 2) | /* Processor is a Thread */
151
(1 << 3), /* Node is a Leaf */
152
- parent_offset, uid++, NULL, 0);
153
+ core_offset, n, NULL, 0);
154
}
155
}
156
157
- g_queue_free(list);
158
acpi_table_end(linker, &table);
159
}
160
161
--
162
2.25.1
diff view generated by jsdifflib

Patchew 2.1-devel-b67e4c2

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