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Tue, 23 May 2023 17:49:12 +0100 (BST) References: <20230523134733.678646-1-richard.henderson@linaro.org> <20230523134733.678646-23-richard.henderson@linaro.org> User-agent: mu4e 1.11.6; emacs 29.0.91 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: Richard Henderson Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org Subject: Re: [PATCH v2 22/27] qemu/atomic128: Split atomic16_read Date: Tue, 23 May 2023 17:49:07 +0100 In-reply-to: <20230523134733.678646-23-richard.henderson@linaro.org> Message-ID: <878rdfyovr.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::32f; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Richard Henderson writes: > Create both atomic16_read_ro and atomic16_read_rw. > Previously we pretended that we had atomic16_read in system mode, > because we "know" that all ram is always writable to the host. > Now, expose read-only and read-write versions all of the time. > > For aarch64, do not fall back to __atomic_read_16 even if > supported by the compiler, to work around a clang bug. > > Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro