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[174.21.142.130]) by smtp.gmail.com with ESMTPSA id g70-20020a636b49000000b003823dd39d41sm11569167pgc.64.2022.03.22.17.58.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Mar 2022 17:58:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=f+5z+wqi2rxnK6aMMyUHgsuTb072LmLznpqr7TVA2Ek=; b=rY01lwXIo8Zhx5tAVaR3PTWgGZvCxW1bfFi6rbDvFCsm6ML7tmAelPntDZuOXIvzco cagmpgmaG4oS9V9eGNLbMIqGZpo/6iz2O4WKkUZoHQRtTWr/qqG89lA79YvUzLLlzw2S YGb6kShyr0XINoi/ycWYnQiKPny9Z0kgbOJ1UuGPCHp7Qw8t/xuSvV+I6JPwxv6E+iPF ZxOQUEPjgE/Jv/60stgu8bzEw59ShVKA96Lrz/ML3vJmz8HrJx1pP5mFqWUpDRWQG3uk aXVQhKIrX5kImo9dbZDTJxd89gQqBcqdfYNDlWYG82uI7GqWNZUPbwud0uO11AIrVhBi h7Vw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=f+5z+wqi2rxnK6aMMyUHgsuTb072LmLznpqr7TVA2Ek=; b=YtPoNCfs/g1UJVGOYkDN2Uhug2BD57wgbHlbhVYE9t7lqCU+OsgNpOpRbPoK8qubXE 51QbhqBFovAL3HUXJf85vNYnwIg0RDNAJkk+wGvvvK/4EgMqCBeItcpXF0BW2DrilkG4 UuHMzMPpnvfxDOqn/qBPDWBBLny5wzuAPYmgngOXcYNtQLbrBB531Smi9eF7voUK8VHs QIppc0pkYUoIU0A4vvHAsOYsZv/V0j4NtRmFiGW4qmSLeM2bcmvby36SfruWsauQEz6i DHTxsAEe7som37DY9aRYxSRifZrMSWhsNWsrwfO8H37oGYoGMOVhHPhHB5iUx6m7R6op R7dg== X-Gm-Message-State: AOAM530w+SHmTYLVh5mSFxnsBidNIRBgr4D5NwAh0Vy7wl/i+aC37hay UHbu1VEN0oKOjzkSHrl5JWmhyAvAQgsGdg== X-Google-Smtp-Source: ABdhPJwk9/Iw1J/0jtA27hRIZdbIabnftOisNgfD1oh2+9GwEGFlVfOxjnl2UgU9Hryi/gx3j/1CBQ== X-Received: by 2002:a17:902:f54c:b0:154:8227:a387 with SMTP id h12-20020a170902f54c00b001548227a387mr6542544plf.42.1647997123188; Tue, 22 Mar 2022 17:58:43 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 1/3] linux-user/arm: Implement __kernel_memory_barrier Date: Tue, 22 Mar 2022 17:58:37 -0700 Message-Id: <20220323005839.94327-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220323005839.94327-1-richard.henderson@linaro.org> References: <20220323005839.94327-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::62a (failed) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62a; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62a.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Peter Maydell , laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1647997265880100003 Content-Type: text/plain; charset="utf-8" This fallback syscall was stubbed out. It would only matter for emulating pre-armv6. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- linux-user/arm/cpu_loop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c index 032e1ffddf..a0e43b261c 100644 --- a/linux-user/arm/cpu_loop.c +++ b/linux-user/arm/cpu_loop.c @@ -158,7 +158,7 @@ do_kernel_trap(CPUARMState *env) =20 switch (env->regs[15]) { case 0xffff0fa0: /* __kernel_memory_barrier */ - /* ??? No-op. Will need to do better for SMP. */ + smp_mb(); break; case 0xffff0fc0: /* __kernel_cmpxchg */ /* XXX: This only works between threads, not between processes. --=20 2.25.1