diff options
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -2316,6 +2316,13 @@ static int memory_access_size(MemoryRegion *mr, unsigned l, hwaddr addr) return l; } +static void prepare_mmio_access(MemoryRegion *mr) +{ + if (mr->flush_coalesced_mmio) { + qemu_flush_coalesced_mmio_buffer(); + } +} + MemTxResult address_space_rw(AddressSpace *as, hwaddr addr, MemTxAttrs attrs, uint8_t *buf, int len, bool is_write) { @@ -2333,6 +2340,7 @@ MemTxResult address_space_rw(AddressSpace *as, hwaddr addr, MemTxAttrs attrs, if (is_write) { if (!memory_access_is_direct(mr, is_write)) { + prepare_mmio_access(mr); l = memory_access_size(mr, l, addr1); /* XXX: could force current_cpu to NULL to avoid potential bugs */ @@ -2374,6 +2382,7 @@ MemTxResult address_space_rw(AddressSpace *as, hwaddr addr, MemTxAttrs attrs, } else { if (!memory_access_is_direct(mr, is_write)) { /* I/O case */ + prepare_mmio_access(mr); l = memory_access_size(mr, l, addr1); switch (l) { case 8: @@ -2739,6 +2748,8 @@ static inline uint32_t address_space_ldl_internal(AddressSpace *as, hwaddr addr, rcu_read_lock(); mr = address_space_translate(as, addr, &addr1, &l, false); if (l < 4 || !memory_access_is_direct(mr, false)) { + prepare_mmio_access(mr); + /* I/O case */ r = memory_region_dispatch_read(mr, addr1, &val, 4, attrs); #if defined(TARGET_WORDS_BIGENDIAN) @@ -2828,6 +2839,8 @@ static inline uint64_t address_space_ldq_internal(AddressSpace *as, hwaddr addr, mr = address_space_translate(as, addr, &addr1, &l, false); if (l < 8 || !memory_access_is_direct(mr, false)) { + prepare_mmio_access(mr); + /* I/O case */ r = memory_region_dispatch_read(mr, addr1, &val, 8, attrs); #if defined(TARGET_WORDS_BIGENDIAN) @@ -2937,6 +2950,8 @@ static inline uint32_t address_space_lduw_internal(AddressSpace *as, mr = address_space_translate(as, addr, &addr1, &l, false); if (l < 2 || !memory_access_is_direct(mr, false)) { + prepare_mmio_access(mr); + /* I/O case */ r = memory_region_dispatch_read(mr, addr1, &val, 2, attrs); #if defined(TARGET_WORDS_BIGENDIAN) @@ -3026,6 +3041,8 @@ void address_space_stl_notdirty(AddressSpace *as, hwaddr addr, uint32_t val, mr = address_space_translate(as, addr, &addr1, &l, true); if (l < 4 || !memory_access_is_direct(mr, true)) { + prepare_mmio_access(mr); + r = memory_region_dispatch_write(mr, addr1, val, 4, attrs); } else { addr1 += memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK; @@ -3065,6 +3082,8 @@ static inline void address_space_stl_internal(AddressSpace *as, mr = address_space_translate(as, addr, &addr1, &l, true); if (l < 4 || !memory_access_is_direct(mr, true)) { + prepare_mmio_access(mr); + #if defined(TARGET_WORDS_BIGENDIAN) if (endian == DEVICE_LITTLE_ENDIAN) { val = bswap32(val); @@ -3169,6 +3188,8 @@ static inline void address_space_stw_internal(AddressSpace *as, rcu_read_lock(); mr = address_space_translate(as, addr, &addr1, &l, true); if (l < 2 || !memory_access_is_direct(mr, true)) { + prepare_mmio_access(mr); + #if defined(TARGET_WORDS_BIGENDIAN) if (endian == DEVICE_LITTLE_ENDIAN) { val = bswap16(val); |