Messages in this thread Patch in this message | | | From | KarimAllah Ahmed <> | Subject | [PATCH] KVM: arm64: Use the correct timer for accessing CNT | Date | Mon, 16 Mar 2020 10:39:06 +0100 |
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Use the physical timer object when reading the physical timer counter instead of using the virtual timer object. This is only visible when reading it from user-space as kvm_arm_timer_get_reg() is only executed on the get register patch from user-space.
Cc: Marc Zyngier <maz@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Julien Thierry <julien.thierry.kdev@gmail.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: kvmarm@lists.cs.columbia.edu Cc: linux-kernel@vger.kernel.org Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de> --- virt/kvm/arm/arch_timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 0d9438e..93bd59b 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -788,7 +788,7 @@ u64 kvm_arm_timer_get_reg(struct kvm_vcpu *vcpu, u64 regid) vcpu_ptimer(vcpu), TIMER_REG_CTL); case KVM_REG_ARM_PTIMER_CNT: return kvm_arm_timer_read(vcpu, - vcpu_vtimer(vcpu), TIMER_REG_CNT); + vcpu_ptimer(vcpu), TIMER_REG_CNT); case KVM_REG_ARM_PTIMER_CVAL: return kvm_arm_timer_read(vcpu, vcpu_ptimer(vcpu), TIMER_REG_CVAL); -- 2.7.4
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