From: Marc Zyngier <maz@kernel.org>
To: Fuad Tabba <fuad.tabba@linux.dev>
Cc: Oliver Upton <oupton@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Steffen Eiden <seiden@linux.ibm.com>,
kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
kvm@vger.kernel.org, Fuad Tabba <tabba@google.com>
Subject: Re: [PATCH 5/7] KVM: arm64: Add helpers to halt a vCPU
Date: Thu, 15 Oct 2026 14:13:00 +0100 [thread overview]
Message-ID: <86ld7z150j.wl-maz@kernel.org> (raw)
In-Reply-To: <20261015125716.2650737-1-fuad.tabba@linux.dev>
On Thu, 15 Oct 2026 13:57:16 +0100,
Fuad Tabba <fuad.tabba@linux.dev> wrote:
>
> Hi Marc,
>
> On Thu, 15 Oct 2026 11:05:37 +0100, Oliver Upton <oupton@kernel.org> wrote:
> [...]
> > Signed-off-by: Oliver Upton <oupton@kernel.org>
> > Link: https://patch.msgid.link/20260929212925.31775-2-oupton@kernel.org
> > Signed-off-by: Marc Zyngier <maz@kernel.org>
>
> Should this one have a Cc: stable too? Patch 6 is tagged for stable and
> calls kvm_pause_vcpu() and kvm_resume_vcpu(), so it won't build in
> stable without this patch.
My take is that there is no need to backport this patch at all. A
valid backport of patch #6 should simply halt the full VM, not just a
single vcpu.
Thanks,
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2026-10-15 13:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 10:05 [PATCH 0/7] KVM: arm64: Fix cross-CPU vcpu pausing Marc Zyngier
2026-10-15 10:05 ` [PATCH 1/7] KVM: arm64: nv: Move L2->L1 switch on interrupt early Marc Zyngier
2026-10-15 10:05 ` [PATCH 2/7] KVM: arm64: Move OUTSIDE_GUEST_MODE publication past context being saved Marc Zyngier
2026-10-15 12:57 ` Fuad Tabba
2026-10-15 13:52 ` Marc Zyngier
2026-10-15 13:59 ` Fuad Tabba
2026-10-15 10:05 ` [PATCH 3/7] KVM: arm64: Move IN_GUEST_MODE ahead of state being loaded Marc Zyngier
2026-10-15 10:05 ` [PATCH 4/7] KVM: arm64: Turn vcpu->arch.pause into a counter Marc Zyngier
2026-10-15 10:05 ` [PATCH 5/7] KVM: arm64: Add helpers to halt a vCPU Marc Zyngier
2026-10-15 12:57 ` Fuad Tabba
2026-10-15 13:13 ` Marc Zyngier [this message]
2026-10-15 13:15 ` Fuad Tabba
2026-10-15 10:05 ` [PATCH 6/7] KVM: arm64: vgic: Stop the target vcpu when disabling LPIs Marc Zyngier
2026-10-15 10:05 ` [PATCH 7/7] KVM: arm64: vgic-its: Stop the VM when handling MOVALL Marc Zyngier
2026-10-15 12:57 ` [PATCH 0/7] KVM: arm64: Fix cross-CPU vcpu pausing Fuad Tabba
2026-10-15 13:30 ` Marc Zyngier
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