From: Sean Christopherson <seanjc@google.com>
To: Manali Shukla <manali.shukla@amd.com>
Cc: pbonzini@redhat.com, mingo@redhat.com, bp@alien8.de,
kvm@vger.kernel.org, x86@kernel.org, nikunj.dadhania@amd.com,
Naveen.Rao@amd.com, ravi.bangoria@amd.com, peterz@infradead.org,
dave.hansen@linux.intel.com, tglx@kernel.org
Subject: Re: [RFC PATCH v1] x86/split_lock: Provide KVM helper to log guest bus lock exits
Date: Tue, 31 Mar 2026 10:34:26 -0700 [thread overview]
Message-ID: <acwFolDAoqlY2ok8@google.com> (raw)
In-Reply-To: <20260324124002.7670-1-manali.shukla@amd.com>
On Tue, Mar 24, 2026, Manali Shukla wrote:
> The intent is purely observational — give hypervisor owners
> visibility into which guest is generating bus locks so they can act
> accordingly. No policy enforcement is done in the kernel. Suggestions
> on the approach are welcome.
This makes no sense. KVM is exiting to userspace, the hypervisor owner doesn't
need to grep dmesg to understand *exactly* what vCPU is generating bus locks.
next prev parent reply other threads:[~2026-03-31 17:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-24 12:40 [RFC PATCH v1] x86/split_lock: Provide KVM helper to log guest bus lock exits Manali Shukla
2026-03-24 18:04 ` Borislav Petkov
2026-03-25 9:32 ` Manali Shukla
2026-03-25 9:54 ` Borislav Petkov
2026-03-31 17:34 ` Sean Christopherson [this message]
2026-04-08 5:09 ` Manali Shukla
2026-04-09 20:56 ` Sean Christopherson
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