diff options
Diffstat (limited to 'util/oslib-posix.c')
| -rw-r--r-- | util/oslib-posix.c | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 40249183e6..914cef5c2c 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -72,6 +72,8 @@ extern int daemon(int, int); #include <sys/sysctl.h> #endif +#include <qemu/mmap-alloc.h> + int qemu_get_thread_id(void) { #if defined(__linux__) @@ -128,10 +130,7 @@ void *qemu_memalign(size_t alignment, size_t size) void *qemu_anon_ram_alloc(size_t size, uint64_t *alignment) { size_t align = QEMU_VMALLOC_ALIGN; - size_t total = size + align; - void *ptr = mmap(0, total, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); - size_t offset = QEMU_ALIGN_UP((uintptr_t)ptr, align) - (uintptr_t)ptr; - void *ptr1; + void *ptr = qemu_ram_mmap(-1, size, align, false); if (ptr == MAP_FAILED) { return NULL; @@ -141,23 +140,6 @@ void *qemu_anon_ram_alloc(size_t size, uint64_t *alignment) *alignment = align; } - ptr1 = mmap(ptr + offset, size, PROT_READ | PROT_WRITE, - MAP_FIXED | MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); - if (ptr1 == MAP_FAILED) { - munmap(ptr, total); - return NULL; - } - - ptr += offset; - total -= offset; - - if (offset > 0) { - munmap(ptr - offset, offset); - } - if (total > size + getpagesize()) { - munmap(ptr + size + getpagesize(), total - size - getpagesize()); - } - trace_qemu_anon_ram_alloc(size, ptr); return ptr; } @@ -171,9 +153,7 @@ void qemu_vfree(void *ptr) void qemu_anon_ram_free(void *ptr, size_t size) { trace_qemu_anon_ram_free(ptr, size); - if (ptr) { - munmap(ptr, size + getpagesize()); - } + qemu_ram_munmap(ptr, size); } void qemu_set_block(int fd) |