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spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ftVLKA82iD2XVZTJqFo7DdcWUzan8sc4wGnLYtvXVsg=; b=k9bnNKBDzWe0a4eIJWP5aXMDz o0iaSgDu7dwxS/wwb/4bjSR11t8MYJ44alsxfH+gyxrfSuFvR2pba7jyaa5I5yefwrXv7xu40ie+f wTPK3yqB+Z5eMMetjEZpdhm3S2qQpyiZTgBB3hJvCkobmYoquM8g0Z8HTOSXZO65qz6eg0Jng/xzG /frVmIrJiZdfP0L61G50ckFBk0XMm2pFchdzuqmWrVAuhbfbElEZGLEJD2t3VRxQKjymqdlS/ctsx ZT8HfjxCWGYjZIkCuJGTN3JBzXODr3Az1T3OkYgoL+Fd9/hwF72yJq5xAPusEKC1P3PfMV35f7abO P/C3hqZVA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOIhG-00BRqm-Kw; Mon, 22 Mar 2021 11:26:11 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lOIh6-00BRo5-WC for linux-arm-kernel@lists.infradead.org; Mon, 22 Mar 2021 11:26:05 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id BAA1E61984; Mon, 22 Mar 2021 11:25:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616412359; bh=PzLkd0Gp9jIBSRQCzJxuUu+Zrn0Xf64IlgL4+coMbzw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QJQ3wCuUvGBWF4pZF546GIrJMojyVKWgUqpt/xEtubgwefRVr/2s3NPpZKO1k8Ofa M1SJmXGhMdM/t7PZ/207GcxroaIx4feVCPUNwXNf6yebFiqnQYHCOLEJtvVheJyXg2 DSw+i0MCQPS/VsY4YQ0PqF7eIsCw4o4BKaUX9OChAUXj6VFYHNXXG8tL4Kl3uvIgav Fj7YKK2fFhskNfN8+Cs/UNVZGqlt0MMBujxt8i4dS9W95bI9OWkoE8mzVvlCYzgz6E nQtdgYwRCByxcqczfhmEcevstblWjGUlmU7OJA2XbYaKAFJC6fLlHSdFywvkJAHBaW P3BCZSWpUihIQ== Date: Mon, 22 Mar 2021 11:25:53 +0000 From: Will Deacon To: Quentin Perret Cc: catalin.marinas@arm.com, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com Subject: Re: [PATCH v6 14/38] KVM: arm64: Provide __flush_dcache_area at EL2 Message-ID: <20210322112553.GB10318@willie-the-truck> References: <20210319100146.1149909-1-qperret@google.com> <20210319100146.1149909-15-qperret@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210319100146.1149909-15-qperret@google.com> 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-20210322_112603_597385_101CB015 X-CRM114-Status: GOOD ( 11.50 ) 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 Fri, Mar 19, 2021 at 10:01:22AM +0000, Quentin Perret wrote: > We will need to do cache maintenance at EL2 soon, so compile a copy of > __flush_dcache_area at EL2, and provide a copy of arm64_ftr_reg_ctrel0 > as it is needed by the read_ctr macro. > > Signed-off-by: Quentin Perret > --- > arch/arm64/include/asm/kvm_cpufeature.h | 2 ++ > arch/arm64/kvm/hyp/nvhe/Makefile | 3 ++- > arch/arm64/kvm/hyp/nvhe/cache.S | 13 +++++++++++++ > arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 6 ++++++ > arch/arm64/kvm/sys_regs.c | 1 + > 5 files changed, 24 insertions(+), 1 deletion(-) > create mode 100644 arch/arm64/kvm/hyp/nvhe/cache.S 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