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memory: split memory_region_from_host from qemu_ram_addr_from_host

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Move the old qemu_ram_addr_from_host to memory_region_from_host and
make it return an offset within the region.  For qemu_ram_addr_from_host
return the ram_addr_t directly, similar to what it was before
commit 1b5ec23 ("memory: return MemoryRegion from qemu_ram_addr_from_host",
2013-07-04).

Reviewed-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-03-25 12:55:08 +01:00
parent f615f39616
commit 07bdaa4196
7 changed files with 51 additions and 20 deletions
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14
memory.c
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@ -33,8 +33,6 @@
//#define DEBUG_UNASSIGNED
#define RAM_ADDR_INVALID (~(ram_addr_t)0)
static unsigned memory_region_transaction_depth;
static bool memory_region_update_pending;
static bool ioeventfd_update_pending;
@ -1665,6 +1663,18 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr)
return ptr + offset;
}
MemoryRegion *memory_region_from_host(void *ptr, ram_addr_t *offset)
{
RAMBlock *block;
block = qemu_ram_block_from_host(ptr, false, offset);
if (!block) {
return NULL;
}
return block->mr;
}
ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr)
{
return mr->ram_block ? mr->ram_block->offset : RAM_ADDR_INVALID;