From: Like Xu <likexu@xxxxxxxxxxx>
commit c6c937d673aaa1d603f62f134e1ca9c173eeeed3 upstream.
Just like on the optional mmu_alloc_direct_roots() path, once shadow
path reaches "r = -EIO" somewhere, the caller needs to know the actual
state in order to enter error handling and avoid something worse.
Fixes: 4a38162ee9f1 ("KVM: MMU: load PDPTRs outside mmu_lock")
Signed-off-by: Like Xu <likexu@xxxxxxxxxxx>
Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Message-Id: <20220301124941.48412-1-likexu@xxxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/mmu/mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -3579,7 +3579,7 @@ set_root_pgd:
out_unlock:
write_unlock(&vcpu->kvm->mmu_lock);
- return 0;
+ return r;
}
static int mmu_alloc_special_roots(struct kvm_vcpu *vcpu)
