[PATCH v8 1/8] KVM: x86: Return -ENOENT on unimplemented MSRs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



When we find an MSR that we can not handle, bubble up that error code as
MSR error return code. Follow up patches will use that to expose the fact
that an MSR is not handled by KVM to user space.

Suggested-by: Aaron Lewis <aaronlewis@xxxxxxxxxx>
Signed-off-by: Alexander Graf <graf@xxxxxxxxxx>
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 17f4995e80a7..58d513c5e264 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -267,7 +267,7 @@ static int kvm_msr_ignored_check(struct kvm_vcpu *vcpu, u32 msr,
 	} else {
 		vcpu_debug_ratelimited(vcpu, "unhandled %s: 0x%x data 0x%llx\n",
 				       op, msr, data);
-		return 1;
+		return -ENOENT;
 	}
 }
 
-- 
2.28.0.394.ge197136389




Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879






[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux