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Mon, 11 May 2026 08:19:37 +0000 (GMT) Received: from Gautams-MacBook-Pro.local (unknown [9.43.41.100]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTPS; Mon, 11 May 2026 08:19:37 +0000 (GMT) Date: Mon, 11 May 2026 13:49:30 +0530 From: Gautam Menghani To: Gautam Menghani , maddy@linux.ibm.com, npiggin@gmail.com, mpe@ellerman.id.au, chleroy@kernel.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] KVM: PPC: Book3S HV: Add H_FAC_UNAVAIL mapping for tracing exits Message-ID: References: <20260428084534.49781-1-Gautam.Menghani@ibm.com> <20260507151014.fd9d5732-0f-amachhiw@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260507151014.fd9d5732-0f-amachhiw@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTExMDA4OCBTYWx0ZWRfX1gpDTzM0r7d6 f2LjosBx2SINSHDJkt3uzpuUt4Fc6cwujcOID0XkHvIOUfvdTpWMjKRT2IEV4lFTa0ZMyO+LIYp 8Dg9h856yV9qBKrHoKj9cGa71fT6sjxnk8VEr9uRJDEZzbMPLCBWOS+C06t3K0vy4mEUE2kxoC+ bkjzPAgRi+7NsO12JzOFZsvy/y79Nc5K8wBXSuNSMG8r3gZDro7yqZuJzh5iCLdqt/Gr+YAhGek vaD/cVHyCLLXdEVSoUaHlKoCdjJMG9UCN8zFws0JCaPuejxT8cBRULtsUXQox01tvZ4b6DjE+3K hMWkr9aV5x7HSWmxSEXK4avFCP+x0hBxxoFfmw+YUxA573rO1o7Lfn7HUThDJbFZ7byNNfksKk6 TZrtFiYQVqV27sBIxyS8RfK3Adb9yjKI5MKPPRrMEtVu2VVtQk+QrmBidU/EmJeSvcFb7zSo/eY PeSjvQGBXYgnVTs/7Qg== X-Authority-Analysis: v=2.4 cv=OaWoyBTY c=1 sm=1 tr=0 ts=6a01911e cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=kj9zAlcOel0A:10 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=kE01fTQ8JUY0VEJNiJkA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-ORIG-GUID: yL18fCqFpeXbY6sGqg3k971s9iYvblrW X-Proofpoint-GUID: 4J2kyQk9TNTqw_BBeXKri3kOw5BC5krV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-11_02,2026-05-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 spamscore=0 clxscore=1015 bulkscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605110088 On Thu, May 07, 2026 at 03:12:29PM +0530, Amit Machhiwal wrote: > On 2026/04/28 02:15 PM, Gautam Menghani wrote: > > From: Gautam Menghani > > > > 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 > > --- > > 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. 0xf60 is handled by OS when problem state tries to use a facility which is not available. So we won't exit to host for this. Thanks, Gautam