On Sun, Apr 28, 2013 at 11:39 PM, Christoffer Dall cdall@cs.columbia.edu wrote:
On Sat, Apr 27, 2013 at 1:09 AM, Anup Patel anup.patel@linaro.org wrote:
This patch does arch_timer reset (i.e. kvm_timer_vcpu_reset()) when a vcpu resetted by kvm_reset_vcpu().
The kvm_reset_vcpu() also informs guest timer irq number to arch_timer code via kvm_timer_vcpu_reset().
Signed-off-by: Anup Patel anup.patel@linaro.org Signed-off-by: Pranavkumar Sawargaonkar pranavkumar@linaro.org
arch/arm64/include/asm/kvm_arch_timer.h | 2 ++ arch/arm64/kvm/reset.c | 11 ++++++++++- 2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/kvm_arch_timer.h b/arch/arm64/include/asm/kvm_arch_timer.h index eb02273..04949c6 100644 --- a/arch/arm64/include/asm/kvm_arch_timer.h +++ b/arch/arm64/include/asm/kvm_arch_timer.h @@ -50,6 +50,8 @@ struct arch_timer_cpu {
int kvm_timer_hyp_init(void); int kvm_timer_init(struct kvm *kvm); +int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
const struct kvm_irq_level *irq);void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu); void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu); void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu); diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index 64e0740..1e255a3 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -27,6 +27,7 @@ #include <asm/ptrace.h> #include <asm/kvm_arm.h> #include <asm/kvm_coproc.h> +#include <asm/kvm_arch_timer.h>
/*
- ARMv8 Reset Values
@@ -40,6 +41,11 @@ static struct kvm_regs default_regs_reset32 = { COMPAT_PSR_I_BIT | COMPAT_PSR_F_BIT), };
+static struct kvm_irq_level default_timer_irq = {
.irq = 27,.level = 1,+};
static bool cpu_has_32bit_el1(void) { u64 pfr0; @@ -75,6 +81,7 @@ int kvm_arch_dev_ioctl_check_extension(long ext) int kvm_reset_vcpu(struct kvm_vcpu *vcpu) { struct kvm_regs *cpu_reset;
const struct kvm_irq_level *cpu_irq; switch (vcpu->arch.target) { default:@@ -86,6 +93,7 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) } else { cpu_reset = &default_regs_reset; }
cpu_irq = &default_timer_irq;what's the reason for naming this cpu_irq?
seems to me it should be vtimer_irq or something to that affect...
oke, i'll name it cpu_vtimer_irq.
break; }@@ -95,5 +103,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) /* Reset system registers */ kvm_reset_sys_regs(vcpu);
return 0;
/* Reset arch_timer context */return kvm_timer_vcpu_reset(vcpu, cpu_irq);}
1.7.9.5
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--Anup