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memory: reorganize file-based allocation

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Split the internal interface in exec.c to a separate function, and
push the check on mem_path up to memory_region_init_ram.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-05-14 17:43:18 +08:00 • committed by Michael S. Tsirkin
parent dfabb8b916
commit e1c57ab86f
5 changed files with 73 additions and 46 deletions
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3
include/exec/cpu-all.h
View file

@ -325,9 +325,6 @@ typedef struct RAMList {
} RAMList;
extern RAMList ram_list;
extern const char *mem_path;
extern int mem_prealloc;
/* Flags stored in the low bits of the TLB virtual address. These are
defined so that fast path ram access is all zeros. */
/* Zero if TLB entry is valid. */

2
include/exec/ram_addr.h
View file

@ -22,6 +22,8 @@
#ifndef CONFIG_USER_ONLY
#include "hw/xen/xen.h"
ram_addr_t qemu_ram_alloc_from_file(ram_addr_t size, MemoryRegion *mr,
const char *mem_path);
ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
MemoryRegion *mr);
ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr);