From: Oliver Upton <oupton@kernel.org>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oupton@kernel.org>,
Steffen Eiden <seiden@linux.ibm.com>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Fuad Tabba <fuad.tabba@linux.dev>,
Hyunwoo Kim <imv4bel@gmail.com>,
Yao Yuan <yaoyuan@linux.alibaba.com>,
ljs@kernel.org
Subject: Re: [PATCH v2 0/8] KVM: arm64: VNCR TLB invalidation fixes
Date: Sat, 8 Aug 2026 11:35:39 -0700 [thread overview]
Message-ID: <178621413203.380376.242769068720524648.b4-ty@kernel.org> (raw)
In-Reply-To: <20260806091026.620700-1-maz@kernel.org>
On Thu, 06 Aug 2026 10:10:18 +0100, Marc Zyngier wrote:
> Prompted by a patch [0] from Hyunwoo Kim which was addressing a pretty
> annoying corner case, I spent some time looking at what was wrong in
> our VNCR TLBI code. And there was a few things to say about it...
>
> - The TLB tracking to get into the slow path is wrong. It tracks what
> is mapped, but not the established TLBs. Kind of annoying.
>
> [...]
Applied to next, thanks!
[1/8] KVM: arm64: Remove VM-wide VNCR mapping counter
https://git.kernel.org/kvmarm/kvmarm/c/c55bc773b6e8
[2/8] KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation
https://git.kernel.org/kvmarm/kvmarm/c/8053393680d4
[3/8] KVM: arm64: Consider SCTLR_EL2.M when mapping the L1 VNCR page
https://git.kernel.org/kvmarm/kvmarm/c/8c774604b6ec
[4/8] KVM: arm64: Correctly handle end of VA space TLBI invalidation
https://git.kernel.org/kvmarm/kvmarm/c/34af2c3e31f9
[5/8] KVM: arm64: Handle VNCR TLB invalidation race with vcpu_put() VNCR unmapping
https://git.kernel.org/kvmarm/kvmarm/c/38640bc32be3
[6/8] KVM: arm64: Sign-extend VA for range-based TLBI invalidation
https://git.kernel.org/kvmarm/kvmarm/c/239347008564
[7/8] KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry
https://git.kernel.org/kvmarm/kvmarm/c/2b7324f3a0c1
[8/8] KVM: arm64: Add VNCR TLB tracking again
https://git.kernel.org/kvmarm/kvmarm/c/62e3bb894a6e
--
Best,
Oliver
prev parent reply other threads:[~2026-08-08 18:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-06 9:10 [PATCH v2 0/8] KVM: arm64: VNCR TLB invalidation fixes Marc Zyngier
2026-08-06 9:10 ` [PATCH v2 1/8] KVM: arm64: Remove VM-wide VNCR mapping counter Marc Zyngier
2026-08-07 16:45 ` Lorenzo Stoakes (ARM)
2026-08-08 8:43 ` Marc Zyngier
2026-08-06 9:10 ` [PATCH v2 2/8] KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Marc Zyngier
2026-08-07 17:12 ` Lorenzo Stoakes (ARM)
2026-08-08 9:06 ` Marc Zyngier
2026-08-06 9:10 ` [PATCH v2 3/8] KVM: arm64: Consider SCTLR_EL2.M when mapping the L1 VNCR page Marc Zyngier
2026-08-06 9:10 ` [PATCH v2 4/8] KVM: arm64: Correctly handle end of VA space TLBI invalidation Marc Zyngier
2026-08-08 21:41 ` Wei-Lin Chang
2026-08-09 18:13 ` Marc Zyngier
2026-08-09 21:10 ` Wei-Lin Chang
2026-08-06 9:10 ` [PATCH v2 5/8] KVM: arm64: Handle VNCR TLB invalidation race with vcpu_put() VNCR unmapping Marc Zyngier
2026-08-07 6:03 ` Yao Yuan
2026-08-06 9:10 ` [PATCH v2 6/8] KVM: arm64: Sign-extend VA for range-based TLBI invalidation Marc Zyngier
2026-08-06 9:10 ` [PATCH v2 7/8] KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry Marc Zyngier
2026-08-06 9:10 ` [PATCH v2 8/8] KVM: arm64: Add VNCR TLB tracking again Marc Zyngier
2026-08-08 18:35 ` Oliver Upton [this message]
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