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Fri, 11 Sep 2026 05:47:48 +0000 (UTC) Received: from sm-arm-grace07 (unknown [10.124.178.20]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by az2nlsmom1.o.css.fujitsu.com (Postfix) with ESMTPS id 216CE829F12; Fri, 11 Sep 2026 05:47:42 +0000 (UTC) Date: Fri, 11 Sep 2026 14:47:40 +0900 From: Itaru Kitayama To: Marc Zyngier Cc: Shuai Xue , Wei-Lin Chang , Wang Han , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, oupton@kernel.org, tabba@google.com, joey.gouly@arm.com, seiden@linux.ibm.com, suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org, ljs@kernel.org Subject: Re: [PATCH v5 0/6] KVM: arm64: nv: Implement nested stage-2 reverse map (new data structure) Message-ID: References: <20260810205038.118843-1-weilin.chang@arm.com> <20260902163500.1841671-1-wanghan@linux.alibaba.com> <877bl26aqg.wl-maz@kernel.org> <46342b48-550e-42c1-9d9f-e800c72269c2@linux.alibaba.com> <874ig55u5h.wl-maz@kernel.org> <87o6ea4q67.wl-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87o6ea4q67.wl-maz@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260910_224751_832670_FBCFB0BF X-CRM114-Status: GOOD ( 14.96 ) 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 Sun, Sep 06, 2026 at 11:42:08AM +0100, Marc Zyngier wrote: > That's an interesting remark. I guess we could add some extra tracking > for that, but let's see what we can do about the above first. > > I've hacked something together and pushed the result at [1] > (compile-tested only). I'd appreciate it if you could put it to the > test with your setup. > > Thanks, > > M. > > [1] https://web.git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=kvm-arm64/unmap-vmall On Neoverse-V2 though, with NUMA balancing on, the WIP kernel from yesterday brought up the Ubuntu 7.0.0-31-generic kernel online without an issue. I will test the host kernel again when the new code is merged to kvmarm/next. Thanks, Itaru. > > -- > Jazz isn't dead. It just smells funny.