falso
/
qemu-irix
mirror of https://github.com/n64decomp/qemu-irix.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

exec: check MRU in qemu_ram_addr_from_host 

This function is not used outside the iothread mutex, so it
can use ram_list.mru_block.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-05-06 14:28:39 +02:00
parent dfde4e6e1a
commit 23887b79df
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
exec.c
View File

@ -1400,18 +1400,26 @@ int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr)
return 0; return 0;
} }
block = ram_list.mru_block;
if (block && block->host && host - block->host < block->length) {
goto found;
}
QTAILQ_FOREACH(block, &ram_list.blocks, next) { QTAILQ_FOREACH(block, &ram_list.blocks, next) {
/* This case append when the block is not mapped. */ /* This case append when the block is not mapped. */
if (block->host == NULL) { if (block->host == NULL) {
continue; continue;
} }
if (host - block->host < block->length) { if (host - block->host < block->length) {
*ram_addr = block->offset + (host - block->host); goto found;
return 0;
} }
} }
return -1; return -1;
found:
*ram_addr = block->offset + (host - block->host);
return 0;
} }
/* Some of the softmmu routines need to translate from a host pointer /* Some of the softmmu routines need to translate from a host pointer