[PATCH-for-11.1 v2 3/9] accel/kvm: Remove TARGET_KVM_HAVE_GUEST_DEBUG

Philippe Mathieu-Daudé posted 9 patches 1 week, 2 days ago
Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Zhao Liu <zhao1.liu@intel.com>, Song Gao <gaosong@loongson.cn>, Bibo Mao <maobibo@loongson.cn>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <daniel.barboza@oss.qualcomm.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Chao Liu <chao.liu.zevorn@gmail.com>, Cornelia Huck <cohuck@redhat.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Alexander Graf <agraf@csgraf.de>, Peter Maydell <peter.maydell@linaro.org>, Pedro Barbuda <pbarbuda@microsoft.com>, Mohamed Mediouni <mohamed@unpredictable.fr>, Huacai Chen <chenhuacai@kernel.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Aleksandar Rikalo <arikalo@gmail.com>
[PATCH-for-11.1 v2 3/9] accel/kvm: Remove TARGET_KVM_HAVE_GUEST_DEBUG
Posted by Philippe Mathieu-Daudé 1 week, 2 days ago
All targets except MIPS have TARGET_KVM_HAVE_GUEST_DEBUG=y.
Declare the kvm_update_guest_debug() stub to MIPS and have
TARGET_KVM_HAVE_GUEST_DEBUG be the default.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 configs/targets/aarch64-softmmu.mak     |  1 -
 configs/targets/i386-softmmu.mak        |  1 -
 configs/targets/loongarch64-softmmu.mak |  1 -
 configs/targets/ppc-softmmu.mak         |  1 -
 configs/targets/ppc64-softmmu.mak       |  1 -
 configs/targets/riscv64-softmmu.mak     |  1 -
 configs/targets/s390x-softmmu.mak       |  1 -
 configs/targets/x86_64-softmmu.mak      |  1 -
 include/system/kvm.h                    |  7 -------
 include/system/kvm_int.h                |  2 --
 accel/kvm/kvm-accel-ops.c               |  4 ----
 accel/kvm/kvm-all.c                     | 13 ++-----------
 target/mips/kvm.c                       |  5 +++++
 13 files changed, 7 insertions(+), 32 deletions(-)

diff --git a/configs/targets/aarch64-softmmu.mak b/configs/targets/aarch64-softmmu.mak
index d34aead41c4..6f60ca6505c 100644
--- a/configs/targets/aarch64-softmmu.mak
+++ b/configs/targets/aarch64-softmmu.mak
@@ -1,6 +1,5 @@
 TARGET_ARCH=aarch64
 TARGET_BASE_ARCH=arm
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-vfp-sysregs.xml arm-neon.xml arm-m-profile.xml arm-m-profile-mve.xml aarch64-pauth.xml aarch64-sme2.xml
 # needed by boot.c
 TARGET_NEED_FDT=y
diff --git a/configs/targets/i386-softmmu.mak b/configs/targets/i386-softmmu.mak
index 38a8f85201f..2eef68dc55e 100644
--- a/configs/targets/i386-softmmu.mak
+++ b/configs/targets/i386-softmmu.mak
@@ -1,5 +1,4 @@
 TARGET_ARCH=i386
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_KVM_HAVE_RESET_PARKED_VCPU=y
 TARGET_XML_FILES= i386-32bit.xml
 TARGET_LONG_BITS=32
diff --git a/configs/targets/loongarch64-softmmu.mak b/configs/targets/loongarch64-softmmu.mak
index 476407f9413..7e0b1ab5d05 100644
--- a/configs/targets/loongarch64-softmmu.mak
+++ b/configs/targets/loongarch64-softmmu.mak
@@ -1,6 +1,5 @@
 TARGET_ARCH=loongarch64
 TARGET_BASE_ARCH=loongarch
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= loongarch-base32.xml loongarch-base64.xml loongarch-fpu.xml loongarch-lsx.xml loongarch-lasx.xml
 # all boards require libfdt
 TARGET_NEED_FDT=y
diff --git a/configs/targets/ppc-softmmu.mak b/configs/targets/ppc-softmmu.mak
index 867898bd47c..c47887f8992 100644
--- a/configs/targets/ppc-softmmu.mak
+++ b/configs/targets/ppc-softmmu.mak
@@ -1,5 +1,4 @@
 TARGET_ARCH=ppc
 TARGET_BIG_ENDIAN=y
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= power-core.xml power-fpu.xml power-altivec.xml power-spe.xml
 TARGET_LONG_BITS=32
diff --git a/configs/targets/ppc64-softmmu.mak b/configs/targets/ppc64-softmmu.mak
index 10d7a2681e7..8c6dc84b821 100644
--- a/configs/targets/ppc64-softmmu.mak
+++ b/configs/targets/ppc64-softmmu.mak
@@ -1,7 +1,6 @@
 TARGET_ARCH=ppc64
 TARGET_BASE_ARCH=ppc
 TARGET_BIG_ENDIAN=y
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml
 # all boards require libfdt
 TARGET_NEED_FDT=y
diff --git a/configs/targets/riscv64-softmmu.mak b/configs/targets/riscv64-softmmu.mak
index 5059c550480..e0d2c7032d6 100644
--- a/configs/targets/riscv64-softmmu.mak
+++ b/configs/targets/riscv64-softmmu.mak
@@ -1,6 +1,5 @@
 TARGET_ARCH=riscv64
 TARGET_BASE_ARCH=riscv
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-virtual.xml riscv-32bit-cpu.xml riscv-32bit-virtual.xml
 # needed by boot.c
 TARGET_NEED_FDT=y
diff --git a/configs/targets/s390x-softmmu.mak b/configs/targets/s390x-softmmu.mak
index e273075f1a9..699e5ced96f 100644
--- a/configs/targets/s390x-softmmu.mak
+++ b/configs/targets/s390x-softmmu.mak
@@ -1,6 +1,5 @@
 TARGET_ARCH=s390x
 TARGET_BIG_ENDIAN=y
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_XML_FILES= s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-virt-kvm.xml s390-gs.xml
 TARGET_LONG_BITS=64
 TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API=y
diff --git a/configs/targets/x86_64-softmmu.mak b/configs/targets/x86_64-softmmu.mak
index c7f8746b4f5..491173df466 100644
--- a/configs/targets/x86_64-softmmu.mak
+++ b/configs/targets/x86_64-softmmu.mak
@@ -1,6 +1,5 @@
 TARGET_ARCH=x86_64
 TARGET_BASE_ARCH=i386
-TARGET_KVM_HAVE_GUEST_DEBUG=y
 TARGET_KVM_HAVE_RESET_PARKED_VCPU=y
 TARGET_XML_FILES= i386-64bit.xml i386-64bit-apx.xml
 TARGET_LONG_BITS=64
diff --git a/include/system/kvm.h b/include/system/kvm.h
index b5763a562d7..9b722ad931a 100644
--- a/include/system/kvm.h
+++ b/include/system/kvm.h
@@ -237,14 +237,7 @@ void kvm_irqchip_change_notify(void);
  * calling down to kvm_arch_update_guest_debug after the generic
  * fields have been set.
  */
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap);
-#else
-static inline int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
-{
-    return -EINVAL;
-}
-#endif
 
 /* internal API */
 
diff --git a/include/system/kvm_int.h b/include/system/kvm_int.h
index 0876aac938d..9d1d3fd3deb 100644
--- a/include/system/kvm_int.h
+++ b/include/system/kvm_int.h
@@ -113,9 +113,7 @@ struct KVMState
     struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
     bool coalesced_flush_in_progress;
     int vcpu_events;
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
     QTAILQ_HEAD(, kvm_sw_breakpoint) kvm_sw_breakpoints;
-#endif
     int max_nested_state_len;
     int kvm_shadow_mem;
     bool kernel_irqchip_allowed;
diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c
index 6d9140e549f..d4af6b416c3 100644
--- a/accel/kvm/kvm-accel-ops.c
+++ b/accel/kvm/kvm-accel-ops.c
@@ -85,12 +85,10 @@ static bool kvm_cpus_are_resettable(void)
     return !kvm_enabled() || !kvm_state->guest_state_protected;
 }
 
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
 static int kvm_update_guest_debug_ops(CPUState *cpu)
 {
     return kvm_update_guest_debug(cpu, 0);
 }
-#endif
 
 static void kvm_accel_ops_class_init(ObjectClass *oc, const void *data)
 {
@@ -105,13 +103,11 @@ static void kvm_accel_ops_class_init(ObjectClass *oc, const void *data)
     ops->synchronize_pre_loadvm = kvm_cpu_synchronize_pre_loadvm;
     ops->handle_interrupt = generic_handle_interrupt;
 
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
     ops->update_guest_debug = kvm_update_guest_debug_ops;
     ops->supports_guest_debug = kvm_supports_guest_debug;
     ops->insert_breakpoint = kvm_insert_breakpoint;
     ops->remove_breakpoint = kvm_remove_breakpoint;
     ops->remove_all_breakpoints = kvm_remove_all_breakpoints;
-#endif
 }
 
 static const TypeInfo kvm_accel_ops_type = {
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 5df3fb90d88..91724b54cdf 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2920,9 +2920,7 @@ static int kvm_init(AccelState *as, MachineState *ms)
     s->sigmask_len = 8;
     accel_blocker_init();
 
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
     QTAILQ_INIT(&s->kvm_sw_breakpoints);
-#endif
     QLIST_INIT(&s->kvm_parked_vcpus);
     s->fd = qemu_open_old(s->device ?: "/dev/kvm", O_RDWR);
     if (s->fd == -1) {
@@ -3033,23 +3031,19 @@ static int kvm_init(AccelState *as, MachineState *ms)
     kvm_vm_attributes_allowed =
         (kvm_check_extension(s, KVM_CAP_VM_ATTRIBUTES) > 0);
 
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
     kvm_has_guest_debug =
         (kvm_check_extension(s, KVM_CAP_SET_GUEST_DEBUG) > 0);
-#endif
 
     kvm_sstep_flags = 0;
     if (kvm_has_guest_debug) {
-        kvm_sstep_flags = SSTEP_ENABLE;
-
-#if defined TARGET_KVM_HAVE_GUEST_DEBUG
         int guest_debug_flags =
             kvm_check_extension(s, KVM_CAP_SET_GUEST_DEBUG2);
 
+        kvm_sstep_flags = SSTEP_ENABLE;
+
         if (guest_debug_flags & KVM_GUESTDBG_BLOCKIRQ) {
             kvm_sstep_flags |= SSTEP_NOIRQ;
         }
-#endif
     }
 
     kvm_state = s;
@@ -3782,7 +3776,6 @@ bool kvm_arm_supports_user_irq(void)
     return kvm_check_extension(kvm_state, KVM_CAP_ARM_USER_IRQ);
 }
 
-#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu, vaddr pc)
 {
     struct kvm_sw_breakpoint *bp;
@@ -3942,8 +3935,6 @@ void kvm_remove_all_breakpoints(CPUState *cpu)
     }
 }
 
-#endif /* !TARGET_KVM_HAVE_GUEST_DEBUG */
-
 static int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
 {
     KVMState *s = kvm_state;
diff --git a/target/mips/kvm.c b/target/mips/kvm.c
index a85e162409c..49bff68b137 100644
--- a/target/mips/kvm.c
+++ b/target/mips/kvm.c
@@ -1262,6 +1262,11 @@ int kvm_arch_msi_data_to_gsi(uint32_t data)
     abort();
 }
 
+int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
+{
+    return -EINVAL;
+}
+
 int kvm_arch_get_default_type(MachineState *machine)
 {
 #if defined(KVM_CAP_MIPS_VZ)
-- 
2.53.0