diff options
Diffstat (limited to 'memory.c')
| -rw-r--r-- | memory.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -311,6 +311,9 @@ static void memory_region_read_accessor(void *opaque, MemoryRegion *mr = opaque; uint64_t tmp; + if (mr->flush_coalesced_mmio) { + qemu_flush_coalesced_mmio_buffer(); + } tmp = mr->ops->read(mr->opaque, addr, size); *value |= (tmp & mask) << shift; } @@ -325,6 +328,9 @@ static void memory_region_write_accessor(void *opaque, MemoryRegion *mr = opaque; uint64_t tmp; + if (mr->flush_coalesced_mmio) { + qemu_flush_coalesced_mmio_buffer(); + } tmp = (*value >> shift) & mask; mr->ops->write(mr->opaque, addr, tmp, size); } @@ -826,6 +832,7 @@ void memory_region_init(MemoryRegion *mr, mr->dirty_log_mask = 0; mr->ioeventfd_nb = 0; mr->ioeventfds = NULL; + mr->flush_coalesced_mmio = false; } static bool memory_region_access_valid(MemoryRegion *mr, @@ -1176,12 +1183,16 @@ void memory_region_add_coalescing(MemoryRegion *mr, cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); memory_region_update_coalesced_range(mr); + memory_region_set_flush_coalesced(mr); } void memory_region_clear_coalescing(MemoryRegion *mr) { CoalescedMemoryRange *cmr; + qemu_flush_coalesced_mmio_buffer(); + mr->flush_coalesced_mmio = false; + while (!QTAILQ_EMPTY(&mr->coalesced)) { cmr = QTAILQ_FIRST(&mr->coalesced); QTAILQ_REMOVE(&mr->coalesced, cmr, link); @@ -1190,6 +1201,19 @@ void memory_region_clear_coalescing(MemoryRegion *mr) memory_region_update_coalesced_range(mr); } +void memory_region_set_flush_coalesced(MemoryRegion *mr) +{ + mr->flush_coalesced_mmio = true; +} + +void memory_region_clear_flush_coalesced(MemoryRegion *mr) +{ + qemu_flush_coalesced_mmio_buffer(); + if (QTAILQ_EMPTY(&mr->coalesced)) { + mr->flush_coalesced_mmio = false; + } +} + void memory_region_add_eventfd(MemoryRegion *mr, target_phys_addr_t addr, unsigned size, |