From: Manali Shukla <manali.shukla@amd.com>
To: <seanjc@google.com>, <pbonzini@redhat.com>
Cc: <mingo@redhat.com>, <bp@alien8.de>, <kvm@vger.kernel.org>,
<x86@kernel.org>, <santosh.shukla@amd.com>,
<nikunj.dadhania@amd.com>, <Naveen.Rao@amd.com>,
<dapeng1.mi@linux.intel.com>, <ravi.bangoria@amd.com>,
<peterz@infradead.org>, <Sandipan.Das@amd.com>
Subject: [PATCH v3 8/9] perf/x86/amd: Remove exclude_guest check from perf_ibs_init()
Date: Tue, 10 Mar 2026 06:00:20 +0000 [thread overview]
Message-ID: <20260310060022.15120-9-manali.shukla@amd.com> (raw)
In-Reply-To: <20260310060022.15120-1-manali.shukla@amd.com>
Currently IBS driver doesn't allow the creation of IBS event with
exclude_guest set. As a result, amd_ibs_init() returns -EINVAL if
IBS event is created with exclude_guest set.
With the introduction of mediated PMU support, software-based handling
of exclude_guest is permitted for PMUs that have the
PERF_PMU_CAP_MEDIATED_VPMU capability.
Since ibs_op and ibs_fetch pmus has PERF_PMU_CAP_MEDIATED_VPMU
capability set, update perf_ibs_init() to remove exclude_guest check.
Signed-off-by: Manali Shukla <manali.shukla@amd.com>
---
arch/x86/events/amd/ibs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index 034a992bbfe3..7da06c143b32 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -327,8 +327,7 @@ static int perf_ibs_init(struct perf_event *event)
return -EOPNOTSUPP;
/* handle exclude_{user,kernel} in the IRQ handler */
- if (event->attr.exclude_host || event->attr.exclude_guest ||
- event->attr.exclude_idle)
+ if (event->attr.exclude_host || event->attr.exclude_idle)
return -EINVAL;
ret = validate_group(event);
--
2.43.0
next prev parent reply other threads:[~2026-03-10 6:00 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-10 6:00 [PATCH v3 0/9] Implement support for IBS virtualization Manali Shukla
2026-03-10 6:00 ` [PATCH v3 1/9] perf/amd/ibs: Fix race condition in IBS Manali Shukla
2026-10-08 17:19 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 2/9] x86/cpufeatures: Add CPUID feature bit for VIBS in SVM/SEV guests Manali Shukla
2026-10-08 17:28 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 3/9] KVM: x86/cpuid: Add a KVM-only leaf for IBS capabilities Manali Shukla
2026-10-08 17:44 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 4/9] KVM: x86: Extend CPUID range to include new leaf Manali Shukla
2026-10-08 17:59 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 5/9] KVM: SVM: Extend VMCB area for virtualized IBS registers Manali Shukla
2026-10-08 18:01 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 6/9] KVM: SVM: Add support for IBS Virtualization Manali Shukla
2026-10-08 19:19 ` Jim Mattson
2026-10-08 21:28 ` Jim Mattson
2026-03-10 6:00 ` [PATCH v3 7/9] perf/x86/amd: Enable VPMU passthrough capability for IBS PMU Manali Shukla
2026-10-08 19:32 ` Jim Mattson
2026-03-10 6:00 ` Manali Shukla [this message]
2026-10-08 19:38 ` [PATCH v3 8/9] perf/x86/amd: Remove exclude_guest check from perf_ibs_init() Jim Mattson
2026-03-10 6:00 ` [PATCH v3 9/9] KVM: SVM: Add newly added IBS capabilities and MSRs Manali Shukla
2026-10-08 21:03 ` Jim Mattson
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