On Thu, Apr 19, 2018 at 4:21 AM, Edgar E. Iglesias
<edgar.igles...@gmail.com> wrote:
> From: "Edgar E. Iglesias" <edgar.igles...@xilinx.com>
>
> Make the TLBX MISS bit read-only.
>
> Signed-off-by: Edgar E. Iglesias <edgar.igles...@xilinx.com>
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com>
Alistair
> ---
> 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
>
>
