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Thu, 18 Mar 2021 13:34:36 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lMsnH-005Nms-RV for linux-arm-kernel@lists.infradead.org; Thu, 18 Mar 2021 13:34:33 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2A72864E27; Thu, 18 Mar 2021 13:34:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616074470; bh=d+aUNfWPxN/xxjxc8yYGr+7tZ50qw5UZwCakX/qmEk0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=AMKitB5VW/7PXIefSVUCNlKk3uz9eZlkxq3nB8HKwt24c/rwDd6rUUQU+6lNyau9X NMgBtb3f7NZsoJO9zV63kPQdB7x2LVb+96uwHd40xQhQh7zAEJ8wAJIZRoIIQ1+sbE 96R8JHHuIp5xr4pxwJtqHMJrF4WjB1kLDC/uIq6vxxjb4Avc04NiEF2VLR0wqix0i3 EZKOs6l3XRfLLGuYcsafB3MFGzwm9qwRQBk236hbyE4SlgfqhnPPXCfj0ni8oR8PdP Tf6aOHl7UnVgKSahhp0sBFHtFXgDLFXSziVTZIQuRfESWZqRaJUc6xvn+aP4G8Sc3w t+WQ6ajjAzMQQ== Date: Thu, 18 Mar 2021 13:34:25 +0000 From: Will Deacon To: Marc Zyngier Cc: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, dave.martin@arm.com, daniel.kiss@arm.com, Catalin Marinas , James Morse , Julien Thierry , Suzuki K Poulose , broonie@kernel.org, ascull@google.com, qperret@google.com, kernel-team@android.com Subject: Re: [PATCH v2 06/11] KVM: arm64: Rework SVE host-save/guest-restore Message-ID: <20210318133424.GC7055@willie-the-truck> References: <20210318122532.505263-1-maz@kernel.org> <20210318122532.505263-7-maz@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210318122532.505263-7-maz@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210318_133432_394526_C329F5A4 X-CRM114-Status: GOOD ( 12.34 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Mar 18, 2021 at 12:25:27PM +0000, Marc Zyngier wrote: > In order to keep the code readable, move the host-save/guest-restore > sequences in their own functions, with the following changes: > - the hypervisor ZCR is now set from C code > - ZCR_EL2 is always used as the EL2 accessor > > This results in some minor assembler macro rework. > No functional change intended. > > Acked-by: Will Deacon > Signed-off-by: Marc Zyngier > --- > arch/arm64/include/asm/fpsimdmacros.h | 8 +++-- > arch/arm64/include/asm/kvm_hyp.h | 2 +- > arch/arm64/kvm/hyp/fpsimd.S | 2 +- > arch/arm64/kvm/hyp/include/hyp/switch.h | 40 +++++++++++++++---------- > 4 files changed, 32 insertions(+), 20 deletions(-) Acked-by: Will Deacon Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel