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KVM: x86/mmu: Passing up the error state of mmu_alloc_shadow_roots()

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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@tencent.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220301124941.48412-1-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Like Xu 2022-03-01 20:49:41 +08:00 committed by Paolo Bonzini
parent 9ee83635d8
commit c6c937d673
1 changed files with 1 additions and 1 deletions
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arch/x86/kvm/mmu/mmu.c
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@ -3565,7 +3565,7 @@ 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)