From: Hemanth Selam <hemanth.selam@gmail.com>
To: seanjc@google.com, pbonzini@redhat.com, shuah@kernel.org
Cc: sashiko-reviews@lists.linux.dev, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] KVM: selftests: Test the PV_UNHALT feature, not just its CPUID bit
Date: Wed, 26 Aug 2026 17:29:44 +0530 [thread overview]
Message-ID: <20260826115944.2882320-1-hemanth.selam@gmail.com> (raw)
In-Reply-To: <20260826101627.2873660-1-hemanth.selam@gmail.com>
Please ignore this version, the report about the hypercall arguments is
correct. KVM takes the APIC ID to kick in a1, as kvm_kick_cpu() does, so
this asked for APIC ID 0 to be kicked and only passed because the halting
vCPU was vCPU 0.
v2 halts on a vCPU with a non-zero APIC ID so that a kick sent to the wrong
vCPU can no longer pass by accident, and I confirmed that reintroducing the
v1 argument order makes it fail:
https://lore.kernel.org/all/20260826115900.2882139-1-hemanth.selam@gmail.com
Sorry for the noise.
Hemanth
prev parent reply other threads:[~2026-08-26 12:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-26 10:16 [PATCH] KVM: selftests: Test the PV_UNHALT feature, not just its CPUID bit Hemanth Selam
2026-08-26 10:27 ` sashiko-bot
2026-08-26 11:59 ` Hemanth Selam [this message]
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