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| author | Jia Liu <proljc@gmail.com> | 2012-07-20 15:50:40 +0800 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2012-07-27 21:12:56 +0000 |
| commit | 726fe04572093504e7bf4ea56e0b2de559063787 (patch) | |
| tree | 745326a010bcfcac3b4134f7675e4e7be96cd72d /target-openrisc/mmu_helper.c | |
| parent | e67db06e9f6d7e514ee2a9b9b769ecd42977f6fb (diff) | |
| download | qemu-726fe04572093504e7bf4ea56e0b2de559063787.zip qemu-726fe04572093504e7bf4ea56e0b2de559063787.tar.gz qemu-726fe04572093504e7bf4ea56e0b2de559063787.tar.bz2 | |
target-or32: Add MMU support
Add OpenRISC MMU support.
Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-openrisc/mmu_helper.c')
| -rw-r--r-- | target-openrisc/mmu_helper.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target-openrisc/mmu_helper.c b/target-openrisc/mmu_helper.c index 7c28079..59ed371 100644 --- a/target-openrisc/mmu_helper.c +++ b/target-openrisc/mmu_helper.c @@ -39,5 +39,25 @@ void tlb_fill(CPUOpenRISCState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { + TranslationBlock *tb; + unsigned long pc; + int ret; + + ret = cpu_openrisc_handle_mmu_fault(env, addr, is_write, mmu_idx); + + if (ret) { + if (retaddr) { + /* now we have a real cpu fault. */ + pc = (unsigned long)retaddr; + tb = tb_find_pc(pc); + if (tb) { + /* the PC is inside the translated code. It means that we + have a virtual CPU fault. */ + cpu_restore_state(tb, env, pc); + } + } + /* Raise Exception. */ + cpu_loop_exit(env); + } } #endif |