diff options
Diffstat (limited to 'accel/tcg/user-exec.c')
| -rw-r--r-- | accel/tcg/user-exec.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 8fbcbf9771..d95b875a6a 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -745,6 +745,10 @@ static int probe_access_internal(CPUArchState *env, vaddr addr, if (guest_addr_valid_untagged(addr)) { int page_flags = page_get_flags(addr); if (page_flags & acc_flag) { + if ((acc_flag == PAGE_READ || acc_flag == PAGE_WRITE) + && cpu_plugin_mem_cbs_enabled(env_cpu(env))) { + return TLB_MMIO; + } return 0; /* success */ } maperr = !(page_flags & PAGE_VALID); @@ -767,7 +771,7 @@ int probe_access_flags(CPUArchState *env, vaddr addr, int size, g_assert(-(addr | TARGET_PAGE_MASK) >= size); flags = probe_access_internal(env, addr, size, access_type, nonfault, ra); - *phost = flags ? NULL : g2h(env_cpu(env), addr); + *phost = (flags & TLB_INVALID_MASK) ? NULL : g2h(env_cpu(env), addr); return flags; } @@ -778,7 +782,7 @@ void *probe_access(CPUArchState *env, vaddr addr, int size, g_assert(-(addr | TARGET_PAGE_MASK) >= size); flags = probe_access_internal(env, addr, size, access_type, false, ra); - g_assert(flags == 0); + g_assert((flags & ~TLB_MMIO) == 0); return size ? g2h(env_cpu(env), addr) : NULL; } |