Now that we have the host gdt conveniently stored in a variable, make use
of it instead of querying the cpu.
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/kvm/vmx.c | 15 ++++++---------
1 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 27a0222..cf56462 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -706,11 +706,10 @@ static void reload_tss(void)
/*
* VT restores TR but not its size. Useless.
*/
- struct desc_ptr gdt;
+ struct desc_ptr *gdt = &__get_cpu_var(host_gdt);
struct desc_struct *descs;
- native_store_gdt(&gdt);
- descs = (void *)gdt.address;
+ descs = (void *)gdt->address;
descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
load_TR_desc();
}
@@ -753,7 +752,7 @@ static bool update_transition_efer(struct vcpu_vmx *vmx, int efer_offset)
static unsigned long segment_base(u16 selector)
{
- struct desc_ptr gdt;
+ struct desc_ptr *gdt = &__get_cpu_var(host_gdt);
struct desc_struct *d;
unsigned long table_base;
unsigned long v;
@@ -761,8 +760,7 @@ static unsigned long segment_base(u16 selector)
if (!(selector & ~3))
return 0;
- native_store_gdt(&gdt);
- table_base = gdt.address;
+ table_base = gdt->address;
if (selector & 4) { /* from ldt */
u16 ldt_selector = kvm_read_ldt();
@@ -903,7 +901,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
}
if (vcpu->cpu != cpu) {
- struct desc_ptr dt;
+ struct desc_ptr *gdt = &__get_cpu_var(host_gdt);
unsigned long sysenter_esp;
kvm_migrate_timers(vcpu);
@@ -919,8 +917,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
* processors.
*/
vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
- native_store_gdt(&dt);
- vmcs_writel(HOST_GDTR_BASE, dt.address); /* 22.2.4 */
+ vmcs_writel(HOST_GDTR_BASE, gdt->address); /* 22.2.4 */
rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
--
1.7.1
--
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