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From: Reiji Watanabe <reijiw@google.com>
To: Marc Zyngier <maz@kernel.org>,
	kvmarm@lists.cs.columbia.edu, kvmarm@lists.linux.dev
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Ricardo Koller <ricarkol@google.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Jing Zhang <jingzhangos@google.com>,
	Raghavendra Rao Anata <rananta@google.com>,
	Reiji Watanabe <reijiw@google.com>
Subject: [PATCH 2/7] KVM: arm64: PMU: Use reset_pmu_reg() for PMUSERENR_EL0 and PMCCFILTR_EL0
Date: Thu, 29 Dec 2022 19:59:23 -0800	[thread overview]
Message-ID: <20221230035928.3423990-3-reijiw@google.com> (raw)
In-Reply-To: <20221230035928.3423990-1-reijiw@google.com>

The default reset function for PMU registers (reset_pmu_reg())
now simply clears a specified register. Use that function for
PMUSERENR_EL0 and PMCCFILTR_EL0, since those registers should
simply be cleared on vCPU reset.

No functional change intended.

Signed-off-by: Reiji Watanabe <reijiw@google.com>
---
 arch/arm64/kvm/sys_regs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index ec4bdaf71a15..4959658b502c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1747,7 +1747,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * in 32bit mode. Here we choose to reset it as zero for consistency.
 	 */
 	{ PMU_SYS_REG(SYS_PMUSERENR_EL0), .access = access_pmuserenr,
-	  .reset = reset_val, .reg = PMUSERENR_EL0, .val = 0 },
+	  .reg = PMUSERENR_EL0 },
 	{ PMU_SYS_REG(SYS_PMOVSSET_EL0),
 	  .access = access_pmovs, .reg = PMOVSSET_EL0 },
 
@@ -1903,7 +1903,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * in 32bit mode. Here we choose to reset it as zero for consistency.
 	 */
 	{ PMU_SYS_REG(SYS_PMCCFILTR_EL0), .access = access_pmu_evtyper,
-	  .reset = reset_val, .reg = PMCCFILTR_EL0, .val = 0 },
+	  .reg = PMCCFILTR_EL0 },
 
 	{ SYS_DESC(SYS_DACR32_EL2), NULL, reset_unknown, DACR32_EL2 },
 	{ SYS_DESC(SYS_IFSR32_EL2), NULL, reset_unknown, IFSR32_EL2 },
-- 
2.39.0.314.g84b9a713c41-goog


WARNING: multiple messages have this Message-ID (diff)
From: Reiji Watanabe <reijiw@google.com>
To: Marc Zyngier <maz@kernel.org>,
	kvmarm@lists.cs.columbia.edu, kvmarm@lists.linux.dev
Cc: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/7] KVM: arm64: PMU: Use reset_pmu_reg() for PMUSERENR_EL0 and PMCCFILTR_EL0
Date: Thu, 29 Dec 2022 19:59:23 -0800	[thread overview]
Message-ID: <20221230035928.3423990-3-reijiw@google.com> (raw)
In-Reply-To: <20221230035928.3423990-1-reijiw@google.com>

The default reset function for PMU registers (reset_pmu_reg())
now simply clears a specified register. Use that function for
PMUSERENR_EL0 and PMCCFILTR_EL0, since those registers should
simply be cleared on vCPU reset.

No functional change intended.

Signed-off-by: Reiji Watanabe <reijiw@google.com>
---
 arch/arm64/kvm/sys_regs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index ec4bdaf71a15..4959658b502c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1747,7 +1747,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * in 32bit mode. Here we choose to reset it as zero for consistency.
 	 */
 	{ PMU_SYS_REG(SYS_PMUSERENR_EL0), .access = access_pmuserenr,
-	  .reset = reset_val, .reg = PMUSERENR_EL0, .val = 0 },
+	  .reg = PMUSERENR_EL0 },
 	{ PMU_SYS_REG(SYS_PMOVSSET_EL0),
 	  .access = access_pmovs, .reg = PMOVSSET_EL0 },
 
@@ -1903,7 +1903,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * in 32bit mode. Here we choose to reset it as zero for consistency.
 	 */
 	{ PMU_SYS_REG(SYS_PMCCFILTR_EL0), .access = access_pmu_evtyper,
-	  .reset = reset_val, .reg = PMCCFILTR_EL0, .val = 0 },
+	  .reg = PMCCFILTR_EL0 },
 
 	{ SYS_DESC(SYS_DACR32_EL2), NULL, reset_unknown, DACR32_EL2 },
 	{ SYS_DESC(SYS_IFSR32_EL2), NULL, reset_unknown, IFSR32_EL2 },
-- 
2.39.0.314.g84b9a713c41-goog

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Reiji Watanabe <reijiw@google.com>
To: Marc Zyngier <maz@kernel.org>,
	kvmarm@lists.cs.columbia.edu, kvmarm@lists.linux.dev
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	 James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	 Suzuki K Poulose <suzuki.poulose@arm.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	 Ricardo Koller <ricarkol@google.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	 Jing Zhang <jingzhangos@google.com>,
	Raghavendra Rao Anata <rananta@google.com>,
	 Reiji Watanabe <reijiw@google.com>
Subject: [PATCH 2/7] KVM: arm64: PMU: Use reset_pmu_reg() for PMUSERENR_EL0 and PMCCFILTR_EL0
Date: Thu, 29 Dec 2022 19:59:23 -0800	[thread overview]
Message-ID: <20221230035928.3423990-3-reijiw@google.com> (raw)
In-Reply-To: <20221230035928.3423990-1-reijiw@google.com>

The default reset function for PMU registers (reset_pmu_reg())
now simply clears a specified register. Use that function for
PMUSERENR_EL0 and PMCCFILTR_EL0, since those registers should
simply be cleared on vCPU reset.

No functional change intended.

Signed-off-by: Reiji Watanabe <reijiw@google.com>
---
 arch/arm64/kvm/sys_regs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index ec4bdaf71a15..4959658b502c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1747,7 +1747,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * in 32bit mode. Here we choose to reset it as zero for consistency.
 	 */
 	{ PMU_SYS_REG(SYS_PMUSERENR_EL0), .access = access_pmuserenr,
-	  .reset = reset_val, .reg = PMUSERENR_EL0, .val = 0 },
+	  .reg = PMUSERENR_EL0 },
 	{ PMU_SYS_REG(SYS_PMOVSSET_EL0),
 	  .access = access_pmovs, .reg = PMOVSSET_EL0 },
 
@@ -1903,7 +1903,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * in 32bit mode. Here we choose to reset it as zero for consistency.
 	 */
 	{ PMU_SYS_REG(SYS_PMCCFILTR_EL0), .access = access_pmu_evtyper,
-	  .reset = reset_val, .reg = PMCCFILTR_EL0, .val = 0 },
+	  .reg = PMCCFILTR_EL0 },
 
 	{ SYS_DESC(SYS_DACR32_EL2), NULL, reset_unknown, DACR32_EL2 },
 	{ SYS_DESC(SYS_IFSR32_EL2), NULL, reset_unknown, IFSR32_EL2 },
-- 
2.39.0.314.g84b9a713c41-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2022-12-30  4:00 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-30  3:59 [PATCH 0/7] KVM: arm64: PMU: Allow userspace to limit the number of PMCs on vCPU Reiji Watanabe
2022-12-30  3:59 ` Reiji Watanabe
2022-12-30  3:59 ` Reiji Watanabe
2022-12-30  3:59 ` [PATCH 1/7] KVM: arm64: PMU: Have reset_pmu_reg() to clear a register Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2023-01-08 19:07   ` Oliver Upton
2023-01-08 19:07     ` Oliver Upton
2023-01-10  5:50     ` Reiji Watanabe
2023-01-10  5:50       ` Reiji Watanabe
2022-12-30  3:59 ` Reiji Watanabe [this message]
2022-12-30  3:59   ` [PATCH 2/7] KVM: arm64: PMU: Use reset_pmu_reg() for PMUSERENR_EL0 and PMCCFILTR_EL0 Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2023-01-08 19:13   ` Oliver Upton
2023-01-08 19:13     ` Oliver Upton
2023-01-10  1:17     ` Reiji Watanabe
2023-01-10  1:17       ` Reiji Watanabe
2023-01-10  1:46       ` Oliver Upton
2023-01-10  1:46         ` Oliver Upton
2022-12-30  3:59 ` [PATCH 3/7] KVM: arm64: PMU: Preserve vCPU's PMCR_EL0.N value on vCPU reset Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59 ` [PATCH 4/7] tools: arm64: Import perf_event.h Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59 ` [PATCH 5/7] KVM: selftests: aarch64: Introduce vpmu_counter_access test Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59 ` [PATCH 6/7] KVM: selftests: aarch64: vPMU register test for implemented counters Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59 ` [PATCH 7/7] KVM: selftests: aarch64: vPMU register test for unimplemented counters Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2022-12-30  3:59   ` Reiji Watanabe
2023-01-03 12:40 ` [PATCH 0/7] KVM: arm64: PMU: Allow userspace to limit the number of PMCs on vCPU Jonathan Cameron
2023-01-03 12:40   ` Jonathan Cameron
2023-01-03 12:40   ` Jonathan Cameron
2023-01-03 12:47   ` Marc Zyngier
2023-01-03 12:47     ` Marc Zyngier
2023-01-03 12:47     ` Marc Zyngier
2023-01-05  2:59     ` Reiji Watanabe
2023-01-05  2:59       ` Reiji Watanabe
2023-01-05  2:59       ` Reiji Watanabe
2023-01-10  2:01 ` Oliver Upton
2023-01-10  2:01   ` Oliver Upton
2023-01-11  0:55   ` Reiji Watanabe
2023-01-11  0:55     ` Reiji Watanabe

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