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memory: move preallocation code out of exec.c

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So that backends can use it.

Since we need the page size for efficiency, move code to compute it
out of translate-all.c and into util/oslib-win32.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-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 17:43:21 +08:00 • committed by Michael S. Tsirkin
parent e1c57ab86f
commit 38183310be
6 changed files with 97 additions and 50 deletions
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7
translate-all.c
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@ -295,14 +295,7 @@ void page_size_init(void)
{
/* NOTE: we can always suppose that qemu_host_page_size >=
TARGET_PAGE_SIZE */
#ifdef _WIN32
SYSTEM_INFO system_info;
GetSystemInfo(&system_info);
qemu_real_host_page_size = system_info.dwPageSize;
#else
qemu_real_host_page_size = getpagesize();
#endif
if (qemu_host_page_size == 0) {
qemu_host_page_size = qemu_real_host_page_size;
}