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| author | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2010-07-05 10:24:56 +0200 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2010-07-05 10:24:56 +0200 |
| commit | 3c4fe427edc88b04bd528351f5ce1c8a2e14f5f8 (patch) | |
| tree | 4ef8918f3a2d0bfdc552796675da6d2a2dcfcdbd /target-cris/helper.c | |
| parent | 253248a3beb2440561bb28b48292ead9c2fd157f (diff) | |
cris: Dont clobber the MMU state across calls to cpu_get_phys_page_debug.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-cris/helper.c')
| -rw-r--r-- | target-cris/helper.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target-cris/helper.c b/target-cris/helper.c index 240bda056a..19c3755816 100644 --- a/target-cris/helper.c +++ b/target-cris/helper.c @@ -248,9 +248,26 @@ void do_interrupt(CPUState *env) target_phys_addr_t cpu_get_phys_page_debug(CPUState * env, target_ulong addr) { uint32_t phy = addr; + uint32_t r_cause, r_tlb_sel, rand_lfsr; struct cris_mmu_result res; int miss; + + /* Save MMU state. */ + r_tlb_sel = env->sregs[SFR_RW_MM_TLB_SEL]; + r_cause = env->sregs[SFR_R_MM_CAUSE]; + rand_lfsr = env->mmu_rand_lfsr; + miss = cris_mmu_translate(&res, env, addr, 0, 0); + /* If D TLB misses, try I TLB. */ + if (miss) { + miss = cris_mmu_translate(&res, env, addr, 2, 0); + } + + /* Restore MMU state. */ + env->sregs[SFR_RW_MM_TLB_SEL] = r_tlb_sel; + env->sregs[SFR_R_MM_CAUSE] = r_cause; + env->mmu_rand_lfsr = rand_lfsr; + if (!miss) phy = res.phy; D(fprintf(stderr, "%s %x -> %x\n", __func__, addr, phy)); |