[PATCH 08/15] KVM: SVM: Remove useless check in svm_load_mmu_pgd()

Lai Jiangshan
2021-11-08T12:45:03Z

From: Lai Jiangshan <laijs@linux.alibaba.com>

VCPU_EXREG_CR3 is never cleared from vcpu->arch.regs_avail in SVM so
the if-branch is always false and useless, just remove it.

Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
---
arch/x86/kvm/svm/svm.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index e3607fa025d3..b7da66935e72 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4000,8 +4000,6 @@ static void svm_load_mmu_pgd(struct kvm_vcpu *vcpu, hpa_t root_hpa,

hv_track_root_tdp(vcpu, root_hpa);

- if (!test_bit(VCPU_EXREG_CR3, (ulong *)&vcpu->arch.regs_avail))
- return;
cr3 = vcpu->arch.cr3;
} else if (vcpu->arch.mmu->shadow_root_level >= PT64_ROOT_4LEVEL) {
cr3 = __sme_set(root_hpa) | kvm_get_active_pcid(vcpu);
--
2.19.1.6.gb485710b