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Commit b66d8000 authored by Gui Jianfeng's avatar Gui Jianfeng Committed by Avi Kivity
Browse files

KVM: MMU: Don't calculate quadrant if tdp_enabled 



There's no need to calculate quadrant if tdp is enabled.

Signed-off-by: default avatarGui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 316b9521

arch/x86/kvm/mmu.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -1378,7 +1378,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, 
	if (role.direct)

	if (role.direct)

		role.cr4_pae = 0;

		role.cr4_pae = 0;

	role.access = access;

	role.access = access;

	if (vcpu->arch.mmu.root_level <= PT32_ROOT_LEVEL) {

	if (!tdp_enabled && vcpu->arch.mmu.root_level <= PT32_ROOT_LEVEL) {

		quadrant = gaddr >> (PAGE_SHIFT + (PT64_PT_BITS * level));

		quadrant = gaddr >> (PAGE_SHIFT + (PT64_PT_BITS * level));

		quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;

		quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;

		role.quadrant = quadrant;

		role.quadrant = quadrant;