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[81.231.232.130]) by smtp.gmail.com with ESMTPSA id x76-v6sm2830394lfb.63.2018.04.23.05.32.34 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 23 Apr 2018 05:32:34 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Date: Mon, 23 Apr 2018 14:32:25 +0200 Message-Id: <20180423123225.30503-6-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180423123225.30503-1-edgar.iglesias@gmail.com> References: <20180423123225.30503-1-edgar.iglesias@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4010:c07::243 Subject: [Qemu-devel] [PATCH v2 5/5] target-microblaze: mmu: Make the TLBX MISS bit read-only X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: edgar.iglesias@xilinx.com, peter.maydell@linaro.org, sai.pavan.boddu@xilinx.com, frasse.iglesias@gmail.com, alistair@alistair23.me, richard.henderson@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: "Edgar E. Iglesias" Make the TLBX MISS bit read-only. Reviewed-by: Alistair Francis Signed-off-by: Edgar E. Iglesias Reviewed-by: Richard Henderson --- target/microblaze/mmu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/microblaze/mmu.c b/target/microblaze/mmu.c index 8391811900..9d5e6aa8a5 100644 --- a/target/microblaze/mmu.c +++ b/target/microblaze/mmu.c @@ -273,6 +273,10 @@ void mmu_write(CPUMBState *env, uint32_t rn, uint32_t v) env->mmu.regs[rn] = v; } break; + case MMU_R_TLBX: + /* Bit 31 is read-only. */ + env->mmu.regs[rn] = deposit32(env->mmu.regs[rn], 0, 31, v); + break; case MMU_R_TLBSX: { struct microblaze_mmu_lookup lu;