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[2a02:3100:af35:1901:81da:eee8:c2d0:ee3b]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48b380f0661sm6839400f8f.14.2026.10.02.10.45.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Oct 2026 10:45:23 -0700 (PDT) Date: Fri, 2 Oct 2026 19:45:21 +0200 From: Karl Mehltretter To: Marc Zyngier , Oliver Upton , kvmarm@lists.linux.dev Cc: Fuad Tabba , Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Paolo Bonzini , Shuah Khan , Eric Auger , Christoffer Dall , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v4 0/4] KVM: arm64: fix VGICv3 redistributor rollback Message-ID: References: <20260831081005.41346-1-kmehltretter@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260831081005.41346-1-kmehltretter@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261002_104527_242098_7AB9CA7D X-CRM114-Status: GOOD ( 12.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Aug 31, 2026 at 10:10:00AM +0100, Karl Mehltretter wrote: > Changes since v3: > - Dropped the REDIST/REDIST_REGION serialization and VGIC init/destroy > rework, keeping the fix close to v2. (Marc) > - Limited rollback to assignments from the new region so an older-region > assignment cannot be missed during concurrent vCPU creation. > - Added Fuad's Reviewed-by tags to patches 1, 3 and 4. These are otherwise > unchanged from v3 (formerly patches 1, 4 and 5). > > Previous version: > v3: https://lore.kernel.org/r/20260822095346.53882-1-kmehltretter@gmail.com > > Karl Mehltretter (4): > KVM: arm64: vgic-v3: Undo assignment on iodev registration failure > KVM: arm64: vgic-v3: Roll back assignments from the new region > KVM: arm64: selftests: Pass guest code to vm_gic_create_with_vcpus() > KVM: arm64: selftests: Test VGICv3 redistributor region retry > > arch/arm64/kvm/vgic/vgic-mmio-v3.c | 54 ++++++-- > tools/testing/selftests/kvm/arm64/vgic_init.c | 116 ++++++++++++++++-- > 2 files changed, 151 insertions(+), 19 deletions(-) A friendly ping on v4. Patches 1, 3, and 4 have Fuad's Reviewed-by; patch 2 was revised following Marc's feedback. Thanks, Karl