From bd9e66086b93a0a908a70a2679819d2d080d87b4 Mon Sep 17 00:00:00 2001 From: "Edgar E. Iglesias" Date: Sun, 15 Apr 2018 23:05:22 +0200 Subject: [PATCH] target-microblaze: mmu: Make TLBSX write-only Make TLBSX write-only and guest-error log reads from it. Reviewed-by: Alistair Francis Reviewed-by: Richard Henderson Signed-off-by: Edgar E. Iglesias --- 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;