74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
|
|
* os-win32.c
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2010 Red Hat, Inc.
|
|
*
|
|
* QEMU library functions for win32 which are shared between QEMU and
|
|
* the QEMU tools.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
#include <windows.h>
|
|
#include "config-host.h"
|
|
#include "sysemu.h"
|
|
#include "trace.h"
|
|
|
|
static void *oom_check(void *ptr)
|
|
{
|
|
if (ptr == NULL) {
|
|
fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
|
|
abort();
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
void *qemu_memalign(size_t alignment, size_t size)
|
|
{
|
|
void *ptr;
|
|
|
|
if (!size) {
|
|
abort();
|
|
}
|
|
ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
|
|
trace_qemu_memalign(alignment, size, ptr);
|
|
return ptr;
|
|
}
|
|
|
|
void *qemu_vmalloc(size_t size)
|
|
{
|
|
void *ptr;
|
|
|
|
/* FIXME: this is not exactly optimal solution since VirtualAlloc
|
|
has 64Kb granularity, but at least it guarantees us that the
|
|
memory is page aligned. */
|
|
if (!size) {
|
|
abort();
|
|
}
|
|
ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
|
|
trace_qemu_vmalloc(size, ptr);
|
|
return ptr;
|
|
}
|
|
|
|
void qemu_vfree(void *ptr)
|
|
{
|
|
trace_qemu_vfree(ptr);
|
|
VirtualFree(ptr, 0, MEM_RELEASE);
|
|
}
|