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[PATCH] KVM: Simplify is_long_mode()

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Instead of doing tricky stuff with the arch dependent virtualization
registers, take a peek at the guest's efer.

This simlifies some code, and fixes some confusion in the mmu branch.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Avi Kivity
2006-12-29 16:49:37 -08:00
committed by Linus Torvalds
parent 1e885461f0
commit a9058ecd3c
6 changed files with 14 additions and 18 deletions
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6
drivers/kvm/svm.c
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@@ -166,11 +166,6 @@ static inline void write_dr7(unsigned long val)
asm volatile ("mov %0, %%dr7" :: "r" (val));
}
static inline int svm_is_long_mode(struct kvm_vcpu *vcpu)
{
return vcpu->svm->vmcb->save.efer & KVM_EFER_LMA;
}
static inline void force_new_asid(struct kvm_vcpu *vcpu)
{
vcpu->svm->asid_generation--;
@@ -1609,7 +1604,6 @@ static struct kvm_arch_ops svm_arch_ops = {
.get_segment_base = svm_get_segment_base,
.get_segment = svm_get_segment,
.set_segment = svm_set_segment,
.is_long_mode = svm_is_long_mode,
.get_cs_db_l_bits = svm_get_cs_db_l_bits,
.set_cr0 = svm_set_cr0,
.set_cr0_no_modeswitch = svm_set_cr0,