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| author | Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 2018-04-15 23:05:22 +0200 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 2018-04-30 16:43:20 +0200 |
| commit | bd9e66086b93a0a908a70a2679819d2d080d87b4 (patch) | |
| tree | ce217e88f21aa99c46b4b859e4a3bf9d7fb5852e /target/microblaze | |
| parent | df1e528aad265a5c6ad7c84ef2861a5e4b2913bf (diff) | |
| download | qemu-bd9e66086b93a0a908a70a2679819d2d080d87b4.tar.gz | |
target-microblaze: mmu: Make TLBSX write-only
Make TLBSX write-only and guest-error log reads from it.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Diffstat (limited to 'target/microblaze')
| -rw-r--r-- | target/microblaze/mmu.c | 5 |
1 files changed, 4 insertions, 1 deletions
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; |