From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
kvm@vger.kernel.org
Cc: Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Zenghui Yu <yuzenghui@huawei.com>
Subject: [PATCH 07/13] KVM: arm64: Move CNT*_CVAL_EL0 userspace accessors to generic infrastructure
Date: Mon, 29 Sep 2025 17:04:51 +0100 [thread overview]
Message-ID: <20250929160458.3351788-8-maz@kernel.org> (raw)
In-Reply-To: <20250929160458.3351788-1-maz@kernel.org>
As for the control registers, move the comparator registers to
the common infrastructure.
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/kvm/guest.c | 4 ----
arch/arm64/kvm/sys_regs.c | 8 ++++----
2 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index dea648706fd52..c23ec9be4ce27 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -593,9 +593,7 @@ static unsigned long num_core_regs(const struct kvm_vcpu *vcpu)
static const u64 timer_reg_list[] = {
KVM_REG_ARM_TIMER_CNT,
- KVM_REG_ARM_TIMER_CVAL,
KVM_REG_ARM_PTIMER_CNT,
- KVM_REG_ARM_PTIMER_CVAL,
};
#define NUM_TIMER_REGS ARRAY_SIZE(timer_reg_list)
@@ -604,9 +602,7 @@ static bool is_timer_reg(u64 index)
{
switch (index) {
case KVM_REG_ARM_TIMER_CNT:
- case KVM_REG_ARM_TIMER_CVAL:
case KVM_REG_ARM_PTIMER_CNT:
- case KVM_REG_ARM_PTIMER_CVAL:
return true;
}
return false;
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index d97aacf4c1dc9..68e88d5c0dfb5 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -3512,11 +3512,11 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_CNTVCTSS_EL0), access_arch_timer },
{ SYS_DESC(SYS_CNTP_TVAL_EL0), access_arch_timer },
TIMER_REG(CNTP_CTL_EL0, NULL),
- { SYS_DESC(SYS_CNTP_CVAL_EL0), access_arch_timer },
+ TIMER_REG(CNTP_CVAL_EL0, NULL),
{ SYS_DESC(SYS_CNTV_TVAL_EL0), access_arch_timer },
TIMER_REG(CNTV_CTL_EL0, NULL),
- { SYS_DESC(SYS_CNTV_CVAL_EL0), access_arch_timer },
+ TIMER_REG(CNTV_CVAL_EL0, NULL),
/* PMEVCNTRn_EL0 */
PMU_PMEVCNTR_EL0(0),
@@ -3715,11 +3715,11 @@ static const struct sys_reg_desc sys_reg_descs[] = {
EL2_REG(CNTHCTL_EL2, access_rw, reset_val, 0),
{ SYS_DESC(SYS_CNTHP_TVAL_EL2), access_arch_timer },
TIMER_REG(CNTHP_CTL_EL2, el2_visibility),
- EL2_REG(CNTHP_CVAL_EL2, access_arch_timer, reset_val, 0),
+ TIMER_REG(CNTHP_CVAL_EL2, el2_visibility),
{ SYS_DESC(SYS_CNTHV_TVAL_EL2), access_arch_timer, .visibility = cnthv_visibility },
TIMER_REG(CNTHV_CTL_EL2, cnthv_visibility),
- EL2_REG_FILTERED(CNTHV_CVAL_EL2, access_arch_timer, reset_val, 0, cnthv_visibility),
+ TIMER_REG(CNTHV_CVAL_EL2, cnthv_visibility),
{ SYS_DESC(SYS_CNTKCTL_EL12), access_cntkctl_el12 },
--
2.47.3
next prev parent reply other threads:[~2025-09-29 16:05 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-29 16:04 [PATCH 00/13] KVM: arm64: De-specialise the timer UAPI Marc Zyngier
2025-09-29 16:04 ` [PATCH 01/13] KVM: arm64: Hide CNTHV_*_EL2 from userspace for nVHE guests Marc Zyngier
2025-09-30 0:35 ` Oliver Upton
2025-09-30 7:44 ` Marc Zyngier
2025-09-29 16:04 ` [PATCH 02/13] KVM: arm64: Introduce timer_context_to_vcpu() helper Marc Zyngier
2025-09-29 16:04 ` [PATCH 03/13] KVM: arm64: Replace timer context vcpu pointer with timer_id Marc Zyngier
2025-09-30 10:13 ` Joey Gouly
2025-09-29 16:04 ` [PATCH 04/13] KVM: arm64: Make timer_set_offset() generally accessible Marc Zyngier
2025-09-29 16:04 ` [PATCH 05/13] KVM: arm64: Add timer UAPI workaround to sysreg infrastructure Marc Zyngier
2025-09-30 0:41 ` Oliver Upton
2025-09-30 7:48 ` Marc Zyngier
2025-09-29 16:04 ` [PATCH 06/13] KVM: arm64: Move CNT*_CTL_EL0 userspace accessors to generic infrastructure Marc Zyngier
2025-09-29 16:04 ` Marc Zyngier [this message]
2025-09-29 16:04 ` [PATCH 08/13] KVM: arm64: Move CNT*CT_EL0 " Marc Zyngier
2025-09-30 10:45 ` Joey Gouly
2025-09-30 12:05 ` Marc Zyngier
2025-09-30 12:41 ` Joey Gouly
2025-09-29 16:04 ` [PATCH 09/13] KVM: arm64: Fix WFxT handling of nested virt Marc Zyngier
2025-09-29 16:04 ` [PATCH 10/13] KVM: arm64: Kill leftovers of ad-hoc timer userspace access Marc Zyngier
2025-09-29 16:04 ` [PATCH 11/13] KVM: arm64: selftests: Make dependencies on VHE-specific registers explicit Marc Zyngier
2025-09-29 16:04 ` [PATCH 12/13] KVM: arm64: selftests: Add an E2H=0-specific configuration to get_reg_list Marc Zyngier
2025-09-29 16:04 ` [PATCH 13/13] KVM: arm64: selftest: Fix misleading comment about virtual timer encoding Marc Zyngier
2025-10-13 16:55 ` [PATCH 00/13] KVM: arm64: De-specialise the timer UAPI Marc Zyngier
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