From: Joerg Roedel <[EMAIL PROTECTED]>
This patch makes the EFER register accessible on a 32bit KVM host. This is
necessary to boot 32 bit PAE guests under SVM.
Signed-off-by: Joerg Roedel <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b774bc2..0987191 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -429,8 +429,6 @@ static u32 emulated_msrs[] = {
MSR_IA32_MISC_ENABLE,
};
-#ifdef CONFIG_X86_64
-
static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
{
if (efer & efer_reserved_bits) {
@@ -455,8 +453,6 @@ static void set_efer(struct kvm_vcpu *vcpu, u64 efer)
vcpu->arch.shadow_efer = efer;
}
-#endif
-
void kvm_enable_efer_bits(u64 mask)
{
efer_reserved_bits &= ~mask;
@@ -486,11 +482,9 @@ static int do_set_msr(struct kvm_vcpu *vcpu, unsigned
index, u64 *data)
int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
{
switch (msr) {
-#ifdef CONFIG_X86_64
case MSR_EFER:
set_efer(vcpu, data);
break;
-#endif
case MSR_IA32_MC0_STATUS:
pr_unimpl(vcpu, "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n",
__FUNCTION__, data);
@@ -563,11 +557,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64
*pdata)
case MSR_IA32_MISC_ENABLE:
data = vcpu->arch.ia32_misc_enable_msr;
break;
-#ifdef CONFIG_X86_64
case MSR_EFER:
data = vcpu->arch.shadow_efer;
break;
-#endif
default:
pr_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr);
return 1;
@@ -2868,9 +2860,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
set_cr8(vcpu, sregs->cr8);
mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer;
-#ifdef CONFIG_X86_64
kvm_x86_ops->set_efer(vcpu, sregs->efer);
-#endif
kvm_set_apic_base(vcpu, sregs->apic_base);
kvm_x86_ops->decache_cr4_guest_bits(vcpu);
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