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Mon, 21 Jul 2025 05:54:18 -0700 (PDT) From: James Clark Date: Mon, 21 Jul 2025 13:53:38 +0100 Subject: [PATCH v4 07/12] KVM: arm64: Add trap configs for PMSDSFR_EL1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250721-james-perf-feat_spe_eft-v4-7-0a527410f8fd@linaro.org> References: <20250721-james-perf-feat_spe_eft-v4-0-0a527410f8fd@linaro.org> In-Reply-To: <20250721-james-perf-feat_spe_eft-v4-0-0a527410f8fd@linaro.org> To: Catalin Marinas , Will Deacon , Mark Rutland , Jonathan Corbet , Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev, Leo Yan , James Clark X-Mailer: b4 0.14.0 SPE data source filtering (SPE_FEAT_FDS) adds a new register PMSDSFR_EL1, add the trap configs for it. PMSNEVFR_EL1 was also missing its VNCR offset so add it along with PMSDSFR_EL1. Tested-by: Leo Yan Signed-off-by: James Clark --- arch/arm64/include/asm/vncr_mapping.h | 2 ++ arch/arm64/kvm/emulate-nested.c | 1 + arch/arm64/kvm/sys_regs.c | 1 + 3 files changed, 4 insertions(+) diff --git a/arch/arm64/include/asm/vncr_mapping.h b/arch/arm64/include/asm= /vncr_mapping.h index 6f556e993644..dba0e58a5fac 100644 --- a/arch/arm64/include/asm/vncr_mapping.h +++ b/arch/arm64/include/asm/vncr_mapping.h @@ -92,6 +92,8 @@ #define VNCR_PMSICR_EL1 0x838 #define VNCR_PMSIRR_EL1 0x840 #define VNCR_PMSLATFR_EL1 0x848 +#define VNCR_PMSNEVFR_EL1 0x850 +#define VNCR_PMSDSFR_EL1 0x858 #define VNCR_TRFCR_EL1 0x880 #define VNCR_MPAM1_EL1 0x900 #define VNCR_MPAMHCR_EL2 0x930 diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-neste= d.c index 3a384e9660b8..60bd8b7f0e5b 100644 --- a/arch/arm64/kvm/emulate-nested.c +++ b/arch/arm64/kvm/emulate-nested.c @@ -1174,6 +1174,7 @@ static const struct encoding_to_trap_config encoding_= to_cgt[] __initconst =3D { SR_TRAP(SYS_PMSIRR_EL1, CGT_MDCR_TPMS), SR_TRAP(SYS_PMSLATFR_EL1, CGT_MDCR_TPMS), SR_TRAP(SYS_PMSNEVFR_EL1, CGT_MDCR_TPMS), + SR_TRAP(SYS_PMSDSFR_EL1, CGT_MDCR_TPMS), SR_TRAP(SYS_TRFCR_EL1, CGT_MDCR_TTRF), SR_TRAP(SYS_TRBBASER_EL1, CGT_MDCR_E2TB), SR_TRAP(SYS_TRBLIMITR_EL1, CGT_MDCR_E2TB), diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index c20bd6f21e60..82bddd631b47 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -3010,6 +3010,7 @@ static const struct sys_reg_desc sys_reg_descs[] =3D { { SYS_DESC(SYS_PMBLIMITR_EL1), undef_access }, { SYS_DESC(SYS_PMBPTR_EL1), undef_access }, { SYS_DESC(SYS_PMBSR_EL1), undef_access }, + { SYS_DESC(SYS_PMSDSFR_EL1), undef_access }, /* PMBIDR_EL1 is not trapped */ =20 { PMU_SYS_REG(PMINTENSET_EL1), --=20 2.34.1