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Iglesias" To: qemu-devel@nongnu.org Date: Mon, 30 Apr 2018 17:08:37 +0200 Message-Id: <20180430150837.20470-6-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180430150837.20470-1-edgar.iglesias@gmail.com> References: <20180430150837.20470-1-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] [PULL v1 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: 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" Make the TLBX MISS bit read-only. Reviewed-by: Alistair Francis Reviewed-by: Richard Henderson Signed-off-by: Edgar E. Iglesias --- 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] =3D v; } break; + case MMU_R_TLBX: + /* Bit 31 is read-only. */ + env->mmu.regs[rn] =3D deposit32(env->mmu.regs[rn], 0, 31, v); + break; case MMU_R_TLBSX: { struct microblaze_mmu_lookup lu; --=20 2.14.1