Messages in this thread Patch in this message | | | From | Xiao Guangrong <> | Subject | [PATCH v3 10/10] KVM: x86: do not reset mmu if CR0.CD and CR0.NW are changed | Date | Wed, 13 May 2015 14:42:28 +0800 |
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CR0.CD and CR0.NW are not used by shadow page table so that need not adjust mmu if these two bit are changed
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> --- arch/x86/kvm/x86.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bbe184f..457b908 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -572,8 +572,7 @@ out: int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) { unsigned long old_cr0 = kvm_read_cr0(vcpu); - unsigned long update_bits = X86_CR0_PG | X86_CR0_WP | - X86_CR0_CD | X86_CR0_NW; + unsigned long update_bits = X86_CR0_PG | X86_CR0_WP; cr0 |= X86_CR0_ET; -- 2.1.0
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