From: "Edgar E. Iglesias" <edgar.igles...@xilinx.com>
Make the TLBX MISS bit read-only.
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com>
Signed-off-by: Edgar E. Iglesias <edgar.igles...@xilinx.com>
---
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;
--
2.14.1
