diff options
| -rw-r--r-- | system/physmem.c | 63 |
1 files changed, 57 insertions, 6 deletions
diff --git a/system/physmem.c b/system/physmem.c index 737869a3f5..6cfb7a80ab 100644 --- a/system/physmem.c +++ b/system/physmem.c @@ -3370,6 +3370,59 @@ static inline MemoryRegion *address_space_translate_cached( return section.mr; } +/* Called within RCU critical section. */ +static MemTxResult address_space_write_continue_cached(MemTxAttrs attrs, + const void *ptr, + hwaddr len, + hwaddr mr_addr, + hwaddr l, + MemoryRegion *mr) +{ + MemTxResult result = MEMTX_OK; + const uint8_t *buf = ptr; + + for (;;) { + result |= flatview_write_continue_step(attrs, buf, len, mr_addr, &l, + mr); + + len -= l; + buf += l; + mr_addr += l; + + if (!len) { + break; + } + + l = len; + } + + return result; +} + +/* Called within RCU critical section. */ +static MemTxResult address_space_read_continue_cached(MemTxAttrs attrs, + void *ptr, hwaddr len, + hwaddr mr_addr, hwaddr l, + MemoryRegion *mr) +{ + MemTxResult result = MEMTX_OK; + uint8_t *buf = ptr; + + for (;;) { + result |= flatview_read_continue_step(attrs, buf, len, mr_addr, &l, mr); + len -= l; + buf += l; + mr_addr += l; + + if (!len) { + break; + } + l = len; + } + + return result; +} + /* Called from RCU critical section. address_space_read_cached uses this * out of line function when the target is an MMIO or IOMMU region. */ @@ -3383,9 +3436,8 @@ address_space_read_cached_slow(MemoryRegionCache *cache, hwaddr addr, l = len; mr = address_space_translate_cached(cache, addr, &mr_addr, &l, false, MEMTXATTRS_UNSPECIFIED); - return flatview_read_continue(cache->fv, - addr, MEMTXATTRS_UNSPECIFIED, buf, len, - mr_addr, l, mr); + return address_space_read_continue_cached(MEMTXATTRS_UNSPECIFIED, + buf, len, mr_addr, l, mr); } /* Called from RCU critical section. address_space_write_cached uses this @@ -3401,9 +3453,8 @@ address_space_write_cached_slow(MemoryRegionCache *cache, hwaddr addr, l = len; mr = address_space_translate_cached(cache, addr, &mr_addr, &l, true, MEMTXATTRS_UNSPECIFIED); - return flatview_write_continue(cache->fv, - addr, MEMTXATTRS_UNSPECIFIED, buf, len, - mr_addr, l, mr); + return address_space_write_continue_cached(MEMTXATTRS_UNSPECIFIED, + buf, len, mr_addr, l, mr); } #define ARG1_DECL MemoryRegionCache *cache |