From: Luiz Capitulino <lcapitul...@redhat.com>
The TSC offset can now be read directly from struct kvm_arch_vcpu.
Signed-off-by: Luiz Capitulino <lcapitul...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
(cherry-picked from commit 3e3f50262eb441d0fd1de4dce06739e9c0fe7c61)
Signed-off-by: Denis Plotnikov <dplotni...@virtuozzo.com>
Signed-off-by: Roman Kagan <rka...@virtuozzo.com>
---
arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/kvm/svm.c | 8 --------
arch/x86/kvm/vmx.c | 6 ------
arch/x86/kvm/x86.c | 2 +-
4 files changed, 1 insertion(+), 16 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 1166dc5..aa86551 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -829,7 +829,6 @@ struct kvm_x86_ops {
bool (*has_wbinvd_exit)(void);
- u64 (*read_tsc_offset)(struct kvm_vcpu *vcpu);
void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
u64 (*read_l1_tsc)(struct kvm_vcpu *vcpu, u64 host_tsc);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 6636074..9021e79 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -956,13 +956,6 @@ static void init_sys_seg(struct vmcb_seg *seg, uint32_t
type)
seg->base = 0;
}
-static u64 svm_read_tsc_offset(struct kvm_vcpu *vcpu)
-{
- struct vcpu_svm *svm = to_svm(vcpu);
-
- return svm->vmcb->control.tsc_offset;
-}
-
static void svm_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
{
struct vcpu_svm *svm = to_svm(vcpu);
@@ -4347,7 +4340,6 @@ static struct kvm_x86_ops svm_x86_ops = {
.has_wbinvd_exit = svm_has_wbinvd_exit,
- .read_tsc_offset = svm_read_tsc_offset,
.write_tsc_offset = svm_write_tsc_offset,
.adjust_tsc_offset_guest = svm_adjust_tsc_offset_guest,
.read_l1_tsc = svm_read_l1_tsc,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index a03e7d9..45007f1 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2202,11 +2202,6 @@ static u64 vmx_read_l1_tsc(struct kvm_vcpu *vcpu, u64
host_tsc)
return host_tsc + tsc_offset;
}
-static u64 vmx_read_tsc_offset(struct kvm_vcpu *vcpu)
-{
- return vmcs_read64(TSC_OFFSET);
-}
-
/*
* writes 'offset' into guest's timestamp counter offset register
*/
@@ -9855,7 +9850,6 @@ static struct kvm_x86_ops vmx_x86_ops = {
.has_wbinvd_exit = cpu_has_vmx_wbinvd_exit,
- .read_tsc_offset = vmx_read_tsc_offset,
.write_tsc_offset = vmx_write_tsc_offset,
.adjust_tsc_offset_guest = vmx_adjust_tsc_offset_guest,
.read_l1_tsc = vmx_read_l1_tsc,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bd8e822..5ec55b1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1339,7 +1339,7 @@ static void kvm_track_tsc_matching(struct kvm_vcpu *vcpu)
static void update_ia32_tsc_adjust_msr(struct kvm_vcpu *vcpu, s64 offset)
{
- u64 curr_offset = kvm_x86_ops->read_tsc_offset(vcpu);
+ u64 curr_offset = vcpu->arch.tsc_offset;
vcpu->arch.ia32_tsc_adjust_msr += offset - curr_offset;
}
--
2.7.4
_______________________________________________
Devel mailing list
Devel@openvz.org
https://lists.openvz.org/mailman/listinfo/devel
