lkml.org 
[lkml]   [2022]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.16 186/186] KVM: x86/mmu: Passing up the error state of mmu_alloc_shadow_roots()
Date
From: Like Xu <likexu@tencent.com>

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@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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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
@@ -3573,7 +3573,7 @@ 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)

\
 
 \ /
  Last update: 2022-09-17 16:16    [W:0.391 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site