* [PATCH] svm: Add warning message for AVIC IPI invalid target
@ 2019-01-22 10:24 Suthikulpanit, Suravee
2019-01-25 17:51 ` Paolo Bonzini
0 siblings, 1 reply; 2+ messages in thread
From: Suthikulpanit, Suravee @ 2019-01-22 10:24 UTC (permalink / raw)
To: linux-kernel, kvm, x86
Cc: joro, rkrcmar, pbonzini, tglx, mingo, bp, hpa, Suthikulpanit, Suravee
From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Print warning message when IPI target ID is invalid due to one of
the following reasons:
* In logical mode: cluster > max_cluster (64)
* In physical mode: target > max_physical (512)
* Address is not present in the physical or logical ID tables
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
arch/x86/kvm/svm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index a157ca5b6869..2aff835a65ed 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -4526,6 +4526,8 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
break;
}
case AVIC_IPI_FAILURE_INVALID_TARGET:
+ WARN_ONCE(1, "Invalid IPI target: index=%u, vcpu=%d, icr=%#0x:%#0x\n",
+ index, svm->vcpu.vcpu_id, icrh, icrl);
break;
case AVIC_IPI_FAILURE_INVALID_BACKING_PAGE:
WARN_ONCE(1, "Invalid backing page\n");
--
2.17.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] svm: Add warning message for AVIC IPI invalid target
2019-01-22 10:24 [PATCH] svm: Add warning message for AVIC IPI invalid target Suthikulpanit, Suravee
@ 2019-01-25 17:51 ` Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2019-01-25 17:51 UTC (permalink / raw)
To: Suthikulpanit, Suravee, linux-kernel, kvm, x86
Cc: joro, rkrcmar, tglx, mingo, bp, hpa
On 22/01/19 11:24, Suthikulpanit, Suravee wrote:
> From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
>
> Print warning message when IPI target ID is invalid due to one of
> the following reasons:
> * In logical mode: cluster > max_cluster (64)
> * In physical mode: target > max_physical (512)
> * Address is not present in the physical or logical ID tables
>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> ---
> arch/x86/kvm/svm.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index a157ca5b6869..2aff835a65ed 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -4526,6 +4526,8 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
> break;
> }
> case AVIC_IPI_FAILURE_INVALID_TARGET:
> + WARN_ONCE(1, "Invalid IPI target: index=%u, vcpu=%d, icr=%#0x:%#0x\n",
> + index, svm->vcpu.vcpu_id, icrh, icrl);
> break;
> case AVIC_IPI_FAILURE_INVALID_BACKING_PAGE:
> WARN_ONCE(1, "Invalid backing page\n");
>
Queued, thanks.
Paolo
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-01-22 10:24 [PATCH] svm: Add warning message for AVIC IPI invalid target Suthikulpanit, Suravee
2019-01-25 17:51 ` Paolo Bonzini
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