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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id id15-20020a05600ca18f00b003a31f1edfa7sm1805798wmb.41.2022.07.18.06.59.27 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Jul 2022 06:59:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=xMitL12ZlGpIhoJpUfgkcxUiDFlIMjfw25ZQQiFUOWg=; b=xWSUP0WISETDYST6Q8ZHYGhYUmF4hsbrNNWwQ5ndmeULWOKWINiv6JeLpmGZjpRrm7 nlAtvNMkslhryVzMh7Gn6fPJNUKrm3Sm3ZJjLzBGTjUbqunENdGK7Y3jpotiC90MtJNZ nZel2ENtxfnq2FX5NhHOIHvUuCFIVCBbcr/lyIgWu1GiTi69Gi60aZI3MsoemIWYUAa7 92wLJUAErb9mVi5JoYjFrp8aWqu14aNo5OBhJnd2nfmXmLzfkpJUEwpu2dfzq26LFbih fjGFE/hxkM1Oq9cEGupbf3aJ3etlnT4D6Fq1DJfMzebvAOAyCvulZbdpe30osK7yYQm9 FxrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xMitL12ZlGpIhoJpUfgkcxUiDFlIMjfw25ZQQiFUOWg=; b=YGEl2eThsHgw9sKroicOH0Dg6u3qiVbt5QnnHsn8XYgvXna8eRaakeAbRLQKlFBgZl lceCA64GeZ4rfnwP5qbcPZUWqy23tR2qpcVnwv7DofxiGGvWpK7c+gYjTk9+uNt00Wsh fPKsMOvJdBuIqY4YSH19rbRP7kAxZcHpgiyb1VlzTC6QusYJNQy4MMky31H6cd2PQXR4 F5ulhLV+2fqjEbnr7nQFjb2Fw0GXkvax3D3vYVGn7b7sM5xAbku8WHgUZAUxb9U37RwX lQHMrbGqzFhRZYYqijCH4UVG5Gkti39b+gjwuOh3oh/KqgvzmG3DEHgrXrxYisiu2ez0 57qw== X-Gm-Message-State: AJIora/c+3yZ7P4sVJ3AbG6kLH+4uZxf2ZFN4ogG4xBAGZBHva/8zFKD ltAH3hAbvG0iAkBkqPMo2YGJuhDnj7SK4Q== X-Google-Smtp-Source: AGRyM1uGDiBrDHD5B7fwP1qXgmcv7wL7SVLpBI5waHunayzaXOP5MVYBlHFlsCNqrHh29ARjY/Y/PQ== X-Received: by 2002:a05:600c:3b1d:b0:3a3:1fda:efcf with SMTP id m29-20020a05600c3b1d00b003a31fdaefcfmr1811505wms.49.1658152768376; Mon, 18 Jul 2022 06:59:28 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 06/15] target/arm: Calculate mask/base_mask in get_level1_table_address() Date: Mon, 18 Jul 2022 14:59:11 +0100 Message-Id: <20220718135920.13667-7-peter.maydell@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220718135920.13667-1-peter.maydell@linaro.org> References: <20220718135920.13667-1-peter.maydell@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::334; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x334.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" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1658154761812100003 Content-Type: text/plain; charset="utf-8" In get_level1_table_address(), instead of using precalculated values of mask and base_mask from the TCR struct, calculate them directly (in the same way we currently do in vmsa_ttbcr_raw_write() to populate the TCR struct fields). Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 20220714132303.1287193-3-peter.maydell@linaro.org --- target/arm/ptw.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/target/arm/ptw.c b/target/arm/ptw.c index 0d7e8ffa41b..16226d14233 100644 --- a/target/arm/ptw.c +++ b/target/arm/ptw.c @@ -315,20 +315,24 @@ static bool get_level1_table_address(CPUARMState *env= , ARMMMUIdx mmu_idx, uint32_t *table, uint32_t address) { /* Note that we can only get here for an AArch32 PL0/PL1 lookup */ - TCR *tcr =3D regime_tcr(env, mmu_idx); + uint64_t tcr =3D regime_tcr_value(env, mmu_idx); + int maskshift =3D extract32(tcr, 0, 3); + uint32_t mask =3D ~(((uint32_t)0xffffffffu) >> maskshift); + uint32_t base_mask; =20 - if (address & tcr->mask) { - if (tcr->raw_tcr & TTBCR_PD1) { + if (address & mask) { + if (tcr & TTBCR_PD1) { /* Translation table walk disabled for TTBR1 */ return false; } *table =3D regime_ttbr(env, mmu_idx, 1) & 0xffffc000; } else { - if (tcr->raw_tcr & TTBCR_PD0) { + if (tcr & TTBCR_PD0) { /* Translation table walk disabled for TTBR0 */ return false; } - *table =3D regime_ttbr(env, mmu_idx, 0) & tcr->base_mask; + base_mask =3D ~((uint32_t)0x3fffu >> maskshift); + *table =3D regime_ttbr(env, mmu_idx, 0) & base_mask; } *table |=3D (address >> 18) & 0x3ffc; return true; --=20 2.25.1