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Fri, 30 Jun 2023 06:22:17 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: mjt@tls.msk.ru, laurent@vivier.eu Subject: [PATCH 21/24] accel/tcg: Accept more page flags in page_check_range Date: Fri, 30 Jun 2023 15:21:56 +0200 Message-Id: <20230630132159.376995-22-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230630132159.376995-1-richard.henderson@linaro.org> References: <20230630132159.376995-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2a00:1450:4864:20::435; envelope-from=richard.henderson@linaro.org; helo=mail-wr1-x435.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1688131672993100003 Content-Type: text/plain; charset="utf-8" Only PAGE_WRITE needs special attention, all others can be handled as we do for PAGE_READ. Adjust the mask. Signed-off-by: Richard Henderson --- accel/tcg/user-exec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index dee4931f86..7a36f95bbc 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -561,8 +561,8 @@ int page_check_range(target_ulong start, target_ulong l= en, int flags) } =20 missing =3D flags & ~p->flags; - if (missing & PAGE_READ) { - ret =3D -1; /* page not readable */ + if (missing & ~PAGE_WRITE) { + ret =3D -1; /* page doesn't match */ break; } if (missing & PAGE_WRITE) { --=20 2.34.1