diff options
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 33 |
1 files changed, 21 insertions, 12 deletions
@@ -1941,8 +1941,8 @@ static const MemoryRegionOps watch_mem_ops = { .endianness = DEVICE_NATIVE_ENDIAN, }; -static uint64_t subpage_read(void *opaque, hwaddr addr, - unsigned len) +static MemTxResult subpage_read(void *opaque, hwaddr addr, uint64_t *data, + unsigned len, MemTxAttrs attrs) { subpage_t *subpage = opaque; uint8_t buf[8]; @@ -1951,23 +1951,29 @@ static uint64_t subpage_read(void *opaque, hwaddr addr, printf("%s: subpage %p len %u addr " TARGET_FMT_plx "\n", __func__, subpage, len, addr); #endif - address_space_read(subpage->as, addr + subpage->base, buf, len); + if (address_space_read(subpage->as, addr + subpage->base, buf, len)) { + return MEMTX_DECODE_ERROR; + } switch (len) { case 1: - return ldub_p(buf); + *data = ldub_p(buf); + return MEMTX_OK; case 2: - return lduw_p(buf); + *data = lduw_p(buf); + return MEMTX_OK; case 4: - return ldl_p(buf); + *data = ldl_p(buf); + return MEMTX_OK; case 8: - return ldq_p(buf); + *data = ldq_p(buf); + return MEMTX_OK; default: abort(); } } -static void subpage_write(void *opaque, hwaddr addr, - uint64_t value, unsigned len) +static MemTxResult subpage_write(void *opaque, hwaddr addr, + uint64_t value, unsigned len, MemTxAttrs attrs) { subpage_t *subpage = opaque; uint8_t buf[8]; @@ -1993,7 +1999,10 @@ static void subpage_write(void *opaque, hwaddr addr, default: abort(); } - address_space_write(subpage->as, addr + subpage->base, buf, len); + if (address_space_write(subpage->as, addr + subpage->base, buf, len)) { + return MEMTX_DECODE_ERROR; + } + return MEMTX_OK; } static bool subpage_accepts(void *opaque, hwaddr addr, @@ -2010,8 +2019,8 @@ static bool subpage_accepts(void *opaque, hwaddr addr, } static const MemoryRegionOps subpage_ops = { - .read = subpage_read, - .write = subpage_write, + .read_with_attrs = subpage_read, + .write_with_attrs = subpage_write, .impl.min_access_size = 1, .impl.max_access_size = 8, .valid.min_access_size = 1, |