Message ID | 20210203190010.759771-3-richard.henderson@linaro.org |
---|---|
State | New |
Headers | show
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[66.27.222.29]) by smtp.gmail.com with ESMTPSA id l2sm2906666pju.25.2021.02.03.11.00.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Feb 2021 11:00:18 -0800 (PST) From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Subject: [PATCH v5 02/31] linux-user: Introduce PAGE_ANON Date: Wed, 3 Feb 2021 08:59:41 -1000 Message-Id: <20210203190010.759771-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210203190010.759771-1-richard.henderson@linaro.org> References: <20210203190010.759771-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1029; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1029.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 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
target-arm: Implement ARMv8.5-MemTag, user mode
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expand
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diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 99a09ee137..c23c77589b 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -275,6 +275,8 @@ extern intptr_t qemu_host_page_mask; #define PAGE_WRITE_INV 0x0020 /* For use with page_set_flags: page is being replaced; target_data cleared. */ #define PAGE_RESET 0x0040 +/* For linux-user, indicates that the page is MAP_ANON. */ +#define PAGE_ANON 0x0080 #if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY) /* FIXME: Code that sets/uses this is broken and needs to go away. */ diff --git a/linux-user/mmap.c b/linux-user/mmap.c index c693505b60..7fb4c628e1 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -599,6 +599,9 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int target_prot, } } the_end1: + if (flags & MAP_ANONYMOUS) { + page_flags |= PAGE_ANON; + } page_flags |= PAGE_RESET; page_set_flags(start, start + len, page_flags); the_end: