* [PATCH v2] KVM: PPC: Book3S HV: Add H_FAC_UNAVAIL mapping for tracing exits
@ 2026-04-28 8:45 Gautam Menghani
2026-05-07 5:24 ` Harsh Prateek Bora
2026-05-07 9:42 ` Amit Machhiwal
0 siblings, 2 replies; 3+ messages in thread
From: Gautam Menghani @ 2026-04-28 8:45 UTC (permalink / raw)
To: maddy, npiggin, mpe, chleroy
Cc: Gautam Menghani, linuxppc-dev, kvm, linux-kernel
From: Gautam Menghani <gautam@linux.ibm.com>
The macro kvm_trace_symbol_exit is used for providing the mappings
for the trap vectors and their names. Add mapping for H_FAC_UNAVAIL so that
trap reason is displayed as string instead of a vector number when using
the kvm_guest_exit tracepoint.
Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
---
v2:
1. Remove the trailing comma after last element
arch/powerpc/kvm/trace_book3s.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/trace_book3s.h b/arch/powerpc/kvm/trace_book3s.h
index 9260ddbd557f..5d272c115331 100644
--- a/arch/powerpc/kvm/trace_book3s.h
+++ b/arch/powerpc/kvm/trace_book3s.h
@@ -28,6 +28,7 @@
{0xea0, "H_VIRT"}, \
{0xf00, "PERFMON"}, \
{0xf20, "ALTIVEC"}, \
- {0xf40, "VSX"}
+ {0xf40, "VSX"}, \
+ {0xf80, "H_FAC_UNAVAIL"}
#endif
--
2.52.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] KVM: PPC: Book3S HV: Add H_FAC_UNAVAIL mapping for tracing exits
2026-04-28 8:45 [PATCH v2] KVM: PPC: Book3S HV: Add H_FAC_UNAVAIL mapping for tracing exits Gautam Menghani
@ 2026-05-07 5:24 ` Harsh Prateek Bora
2026-05-07 9:42 ` Amit Machhiwal
1 sibling, 0 replies; 3+ messages in thread
From: Harsh Prateek Bora @ 2026-05-07 5:24 UTC (permalink / raw)
To: Gautam Menghani, maddy, npiggin, mpe, chleroy
Cc: Gautam Menghani, linuxppc-dev, kvm, linux-kernel
On 28/04/26 2:15 pm, Gautam Menghani wrote:
> From: Gautam Menghani <gautam@linux.ibm.com>
>
> The macro kvm_trace_symbol_exit is used for providing the mappings
> for the trap vectors and their names. Add mapping for H_FAC_UNAVAIL so that
> trap reason is displayed as string instead of a vector number when using
> the kvm_guest_exit tracepoint.
>
> Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
> ---
> v2:
> 1. Remove the trailing comma after last element
>
> arch/powerpc/kvm/trace_book3s.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kvm/trace_book3s.h b/arch/powerpc/kvm/trace_book3s.h
> index 9260ddbd557f..5d272c115331 100644
> --- a/arch/powerpc/kvm/trace_book3s.h
> +++ b/arch/powerpc/kvm/trace_book3s.h
> @@ -28,6 +28,7 @@
> {0xea0, "H_VIRT"}, \
> {0xf00, "PERFMON"}, \
> {0xf20, "ALTIVEC"}, \
> - {0xf40, "VSX"}
> + {0xf40, "VSX"}, \
> + {0xf80, "H_FAC_UNAVAIL"}
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
>
> #endif
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] KVM: PPC: Book3S HV: Add H_FAC_UNAVAIL mapping for tracing exits
2026-04-28 8:45 [PATCH v2] KVM: PPC: Book3S HV: Add H_FAC_UNAVAIL mapping for tracing exits Gautam Menghani
2026-05-07 5:24 ` Harsh Prateek Bora
@ 2026-05-07 9:42 ` Amit Machhiwal
1 sibling, 0 replies; 3+ messages in thread
From: Amit Machhiwal @ 2026-05-07 9:42 UTC (permalink / raw)
To: Gautam Menghani
Cc: maddy, npiggin, mpe, chleroy, Gautam Menghani, linuxppc-dev, kvm,
linux-kernel
On 2026/04/28 02:15 PM, Gautam Menghani wrote:
> From: Gautam Menghani <gautam@linux.ibm.com>
>
> The macro kvm_trace_symbol_exit is used for providing the mappings
> for the trap vectors and their names. Add mapping for H_FAC_UNAVAIL so that
> trap reason is displayed as string instead of a vector number when using
> the kvm_guest_exit tracepoint.
>
> Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
> ---
> v2:
> 1. Remove the trailing comma after last element
>
> arch/powerpc/kvm/trace_book3s.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kvm/trace_book3s.h b/arch/powerpc/kvm/trace_book3s.h
> index 9260ddbd557f..5d272c115331 100644
> --- a/arch/powerpc/kvm/trace_book3s.h
> +++ b/arch/powerpc/kvm/trace_book3s.h
> @@ -28,6 +28,7 @@
> {0xea0, "H_VIRT"}, \
> {0xf00, "PERFMON"}, \
> {0xf20, "ALTIVEC"}, \
> - {0xf40, "VSX"}
> + {0xf40, "VSX"}, \
> + {0xf80, "H_FAC_UNAVAIL"}
While we are at it, should we also consider adding 0xf60 for Facility
Unavailable? Anyways, LGTM.
Reviewed-by: Amit Machhiwal <amachhiw@linux.ibm.com>
>
> #endif
> --
> 2.52.0
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2026-05-07 5:24 ` Harsh Prateek Bora
2026-05-07 9:42 ` Amit Machhiwal
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