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[81.231.232.130]) by smtp.gmail.com with ESMTPSA id d4-v6sm699133lfg.65.2018.04.19.04.21.37 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 19 Apr 2018 04:21:37 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Date: Thu, 19 Apr 2018 13:21:30 +0200 Message-Id: <20180419112131.16932-5-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180419112131.16932-1-edgar.iglesias@gmail.com> References: <20180419112131.16932-1-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::244 Subject: [Qemu-devel] [PATCH v1 4/5] target-microblaze: mmu: Make TLBSX write-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: sai.pavan.boddu@xilinx.com, peter.maydell@linaro.org, alistair@alistair23.me, edgar.iglesias@xilinx.com, frasse.iglesias@gmail.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: "Edgar E. Iglesias" Make TLBSX write-only and guest-error log reads from it. Signed-off-by: Edgar E. Iglesias Reviewed-by: Alistair Francis --- target/microblaze/mmu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/target/microblaze/mmu.c b/target/microblaze/mmu.c index a0f06758f8..8391811900 100644 --- a/target/microblaze/mmu.c +++ b/target/microblaze/mmu.c @@ -182,7 +182,7 @@ done: uint32_t mmu_read(CPUMBState *env, uint32_t rn) { unsigned int i; - uint32_t r; + uint32_t r = 0; if (env->mmu.c_mmu < 2 || !env->mmu.c_mmu_tlb_access) { qemu_log_mask(LOG_GUEST_ERROR, "MMU access on MMU-less system\n"); @@ -211,6 +211,9 @@ uint32_t mmu_read(CPUMBState *env, uint32_t rn) } r = env->mmu.regs[rn]; break; + case MMU_R_TLBSX: + qemu_log_mask(LOG_GUEST_ERROR, "TLBSX is write-only.\n"); + break; default: r = env->mmu.regs[rn]; break;