[PATCH -tip] x86: kvm replace MSR_IA32_TIME_STAMP_COUNTER with MSR_IA32_TSC of msr-index.h

Jaswinder Singh Rajput
2009-05-14T06:28:22Z

Use standard msr-index.h's MSR declaration.

MSR_IA32_TSC is better than MSR_IA32_TIME_STAMP_COUNTER as it also solves
80 column issue.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
arch/x86/include/asm/kvm_host.h | 2 --
arch/x86/kvm/svm.c | 4 ++--
arch/x86/kvm/vmx.c | 4 ++--
arch/x86/kvm/x86.c | 5 ++---
4 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index f0faf58..824f5e6 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -750,8 +750,6 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
}

-#define MSR_IA32_TIME_STAMP_COUNTER 0x010
-
#define TSS_IOPB_BASE_OFFSET 0x66
#define TSS_BASE_SIZE 0x68
#define TSS_IOPB_SIZE (65536 / 8)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 1821c20..f149d17 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1889,7 +1889,7 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
struct vcpu_svm *svm = to_svm(vcpu);

switch (ecx) {
- case MSR_IA32_TIME_STAMP_COUNTER: {
+ case MSR_IA32_TSC: {
u64 tsc;

rdtscll(tsc);
@@ -1979,7 +1979,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
struct vcpu_svm *svm = to_svm(vcpu);

switch (ecx) {
- case MSR_IA32_TIME_STAMP_COUNTER: {
+ case MSR_IA32_TSC: {
u64 tsc;

rdtscll(tsc);
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index bb48133..c8d3234 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -897,7 +897,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
case MSR_EFER:
return kvm_get_msr_common(vcpu, msr_index, pdata);
#endif
- case MSR_IA32_TIME_STAMP_COUNTER:
+ case MSR_IA32_TSC:
data = guest_read_tsc();
break;
case MSR_IA32_SYSENTER_CS:
@@ -957,7 +957,7 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
case MSR_IA32_SYSENTER_ESP:
vmcs_writel(GUEST_SYSENTER_ESP, data);
break;
- case MSR_IA32_TIME_STAMP_COUNTER:
+ case MSR_IA32_TSC:
rdtscll(host_tsc);
guest_write_tsc(data, host_tsc);
break;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8e4a0ef..db0fd7d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -465,7 +465,7 @@ static u32 msrs_to_save[] = {
#ifdef CONFIG_X86_64
MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
#endif
- MSR_IA32_TIME_STAMP_COUNTER, MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK,
+ MSR_IA32_TSC, MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK,
MSR_IA32_PERF_STATUS, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA
};

@@ -637,8 +637,7 @@ static void kvm_write_guest_time(struct kvm_vcpu *v)

/* Keep irq disabled to prevent changes to the clock */
local_irq_save(flags);
- kvm_get_msr(v, MSR_IA32_TIME_STAMP_COUNTER,
- &vcpu->hv_clock.tsc_timestamp);
+ kvm_get_msr(v, MSR_IA32_TSC, &vcpu->hv_clock.tsc_timestamp);
ktime_get_ts(&ts);
local_irq_restore(flags);

--
1.6.0.6