diff options
| author | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2009-10-10 17:34:27 +0200 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2009-10-10 17:34:27 +0200 |
| commit | 218951ef4dc8e973cd27f934fab34c6e78ed2941 (patch) | |
| tree | e9434dde22bf8f613b68cf3443891a94f7a87014 | |
| parent | cef290b8782b8363e80cc368a554125c5f24ec04 (diff) | |
CRIS: Segmented addressing only for kernel mode.
Segmented translation through the CRIS MMU is only done for
accesses in kernel mode. In user-mode, all accesses are treated
as paged regardless of the mode config in RW_MM_CFG.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
| -rw-r--r-- | target-cris/helper.c | 6 | ||||
| -rw-r--r-- | target-cris/mmu.c | 2 |
2 files changed, 5 insertions, 3 deletions
diff --git a/target-cris/helper.c b/target-cris/helper.c index a12ac10ee0..ff4f2fe1da 100644 --- a/target-cris/helper.c +++ b/target-cris/helper.c @@ -172,8 +172,6 @@ void do_interrupt(CPUState *env) env->dslot = 0; } - env->pc = ldl_code(env->pregs[PR_EBP] + ex_vec * 4); - if (env->pregs[PR_CCS] & U_FLAG) { /* Swap stack pointers. */ env->pregs[PR_USP] = env->regs[R_SP]; @@ -182,6 +180,10 @@ void do_interrupt(CPUState *env) /* Apply the CRIS CCS shift. Clears U if set. */ cris_shift_ccs(env); + + /* Now that we are in kernel mode, load the handlers address. */ + env->pc = ldl_code(env->pregs[PR_EBP] + ex_vec * 4); + D_LOG("%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n", __func__, env->pc, ex_vec, env->pregs[PR_CCS], diff --git a/target-cris/mmu.c b/target-cris/mmu.c index bc5b7105d1..b6892bbbf2 100644 --- a/target-cris/mmu.c +++ b/target-cris/mmu.c @@ -345,7 +345,7 @@ int cris_mmu_translate(struct cris_mmu_result *res, } seg = vaddr >> 28; - if (cris_mmu_segmented_addr(seg, env->sregs[SFR_RW_MM_CFG])) + if (!is_user && cris_mmu_segmented_addr(seg, env->sregs[SFR_RW_MM_CFG])) { uint32_t base; |