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[5.69.146.176]) by smtp.gmail.com with ESMTPSA id f8-20020a05600c4e8800b003da28dfdedcsm6312144wmq.5.2023.02.10.08.39.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Feb 2023 08:39:40 -0800 (PST) From: Jean-Philippe Brucker To: eric.auger@redhat.com Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org, ola.hugosson@arm.com, Jean-Philippe Brucker Subject: [PATCH 2/2] hw/arm/smmu-common: Fix TTB1 handling Date: Fri, 10 Feb 2023 16:37:32 +0000 Message-Id: <20230210163731.970130-3-jean-philippe@linaro.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230210163731.970130-1-jean-philippe@linaro.org> References: <20230210163731.970130-1-jean-philippe@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=jean-philippe@linaro.org; helo=mail-wm1-x32c.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=unavailable 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 Addresses targeting the second translation table (TTB1) in the SMMU have all upper bits set (except for the top byte when TBI is enabled). Fix the TTB1 check. Reported-by: Ola Hugosson Signed-off-by: Jean-Philippe Brucker Reviewed-by: Richard Henderson Reviewed-by: Eric Auger --- hw/arm/smmu-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c index 2b8c67b9a1..0a5a60ca1e 100644 --- a/hw/arm/smmu-common.c +++ b/hw/arm/smmu-common.c @@ -249,7 +249,7 @@ SMMUTransTableInfo *select_tt(SMMUTransCfg *cfg, dma_addr_t iova) /* there is a ttbr0 region and we are in it (high bits all zero) */ return &cfg->tt[0]; } else if (cfg->tt[1].tsz && - !extract64(iova, 64 - cfg->tt[1].tsz, cfg->tt[1].tsz - tbi_byte)) { + sextract64(iova, 64 - cfg->tt[1].tsz, cfg->tt[1].tsz - tbi_byte) == -1) { /* there is a ttbr1 region and we are in it (high bits all one) */ return &cfg->tt[1]; } else if (!cfg->tt[0].tsz) {