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| author | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2009-05-27 01:19:58 +0200 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2009-05-27 01:19:58 +0200 |
| commit | d0f3654f8346ac32953b3ca4bb3dce5e63517ab7 (patch) | |
| tree | 4b80e266c67c9a85577bd5a616b7e8c51cde6b34 /target-microblaze | |
| parent | 6b2fce907dda9f0355e968bfe6f868ae65f882e7 (diff) | |
| download | qemu-d0f3654f8346ac32953b3ca4bb3dce5e63517ab7.zip qemu-d0f3654f8346ac32953b3ca4bb3dce5e63517ab7.tar.gz qemu-d0f3654f8346ac32953b3ca4bb3dce5e63517ab7.tar.bz2 | |
microblaze: Make writes to MMU_ZPR flush the TLB.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-microblaze')
| -rw-r--r-- | target-microblaze/mmu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/target-microblaze/mmu.c b/target-microblaze/mmu.c index 72d3183..d14373c 100644 --- a/target-microblaze/mmu.c +++ b/target-microblaze/mmu.c @@ -220,6 +220,13 @@ void mmu_write(CPUState *env, uint32_t rn, uint32_t v) D(qemu_log("%s ram[%d][%d]=%x\n", __func__, rn & 1, i, v)); break; case MMU_R_ZPR: + /* Changes to the zone protection reg flush the QEMU TLB. + Fortunately, these are very uncommon. */ + if (v != env->mmu.regs[rn]) { + tlb_flush(env, 1); + } + env->mmu.regs[rn] = v; + break; case MMU_R_PID: if (v != env->mmu.regs[rn]) { mmu_change_pid(env, v); |