[PATCH] KVM: x86/mmu: fix an incorrect comment in kvm_mmu_new_pgd

Wei Liu
2022-11-27T22:13:02Z

There is no function named kvm_mmu_ensure_valid_pgd.

Fix the comment and remove the pair of braces to conform to Linux kernel
coding style.

Signed-off-by: Wei Liu <wei.liu@kernel.org>
---
arch/x86/kvm/mmu/mmu.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index b6f96d47e596..361574124fbe 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4452,10 +4452,12 @@ void kvm_mmu_new_pgd(struct kvm_vcpu *vcpu, gpa_t new_pgd)
struct kvm_mmu *mmu = vcpu->arch.mmu;
union kvm_mmu_page_role new_role = mmu->root_role;

- if (!fast_pgd_switch(vcpu->kvm, mmu, new_pgd, new_role)) {
- /* kvm_mmu_ensure_valid_pgd will set up a new root. */
+ /*
+ * Return immediately if no usable root is found. A new root will be
+ * set up in vcpu_enter_guest prior to the next vmenter.
+ */
+ if (!fast_pgd_switch(vcpu->kvm, mmu, new_pgd, new_role))
return;
- }

/*
* It's possible that the cached previous root page is obsolete because
--
2.35.1