1 files changed, 0 insertions, 110 deletions
diff --git a/qemu/util/mmap-alloc.c b/qemu/util/mmap-alloc.c
deleted file mode 100644
index 0b4cc7f7f..000000000
--- a/qemu/util/mmap-alloc.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Support for RAM backed by mmaped host memory.
- *
- * Copyright (c) 2015 Red Hat, Inc.
- *
- * Authors:
- *  Michael S. Tsirkin <mst@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * later.  See the COPYING file in the top-level directory.
- */
-#include "qemu/osdep.h"
-#include <qemu/mmap-alloc.h>
-#include <sys/mman.h>
-
-#define HUGETLBFS_MAGIC       0x958458f6
-
-#ifdef CONFIG_LINUX
-#include <sys/vfs.h>
-#endif
-
-size_t qemu_fd_getpagesize(int fd)
-{
-#ifdef CONFIG_LINUX
-    struct statfs fs;
-    int ret;
-
-    if (fd != -1) {
-        do {
-            ret = fstatfs(fd, &fs);
-        } while (ret != 0 && errno == EINTR);
-
-        if (ret == 0 && fs.f_type == HUGETLBFS_MAGIC) {
-            return fs.f_bsize;
-        }
-    }
-#endif
-
-    return getpagesize();
-}
-
-void *qemu_ram_mmap(int fd, size_t size, size_t align, bool shared)
-{
-    /*
-     * Note: this always allocates at least one extra page of virtual address
-     * space, even if size is already aligned.
-     */
-    size_t total = size + align;
-#if defined(__powerpc64__) && defined(__linux__)
-    /* On ppc64 mappings in the same segment (aka slice) must share the same
-     * page size. Since we will be re-allocating part of this segment
-     * from the supplied fd, we should make sure to use the same page size, to
-     * this end we mmap the supplied fd.  In this case, set MAP_NORESERVE to
-     * avoid allocating backing store memory.
-     * We do this unless we are using the system page size, in which case
-     * anonymous memory is OK.
-     */
-    int anonfd = fd == -1 || qemu_fd_getpagesize(fd) == getpagesize() ? -1 : fd;
-    int flags = anonfd == -1 ? MAP_ANONYMOUS : MAP_NORESERVE;
-    void *ptr = mmap(0, total, PROT_NONE, flags | MAP_PRIVATE, anonfd, 0);
-#else
-    void *ptr = mmap(0, total, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
-#endif
-    size_t offset = QEMU_ALIGN_UP((uintptr_t)ptr, align) - (uintptr_t)ptr;
-    void *ptr1;
-
-    if (ptr == MAP_FAILED) {
-        return MAP_FAILED;
-    }
-
-    /* Make sure align is a power of 2 */
-    assert(!(align & (align - 1)));
-    /* Always align to host page size */
-    assert(align >= getpagesize());
-
-    ptr1 = mmap(ptr + offset, size, PROT_READ | PROT_WRITE,
-                MAP_FIXED |
-                (fd == -1 ? MAP_ANONYMOUS : 0) |
-                (shared ? MAP_SHARED : MAP_PRIVATE),
-                fd, 0);
-    if (ptr1 == MAP_FAILED) {
-        munmap(ptr, total);
-        return MAP_FAILED;
-    }
-
-    ptr += offset;
-    total -= offset;
-
-    if (offset > 0) {
-        munmap(ptr - offset, offset);
-    }
-
-    /*
-     * Leave a single PROT_NONE page allocated after the RAM block, to serve as
-     * a guard page guarding against potential buffer overflows.
-     */
-    if (total > size + getpagesize()) {
-        munmap(ptr + size + getpagesize(), total - size - getpagesize());
-    }
-
-    return ptr;
-}
-
-void qemu_ram_munmap(void *ptr, size_t size)
-{
-    if (ptr) {
-        /* Unmap both the RAM block and the guard page */
-        munmap(ptr, size + getpagesize());
-    }
-}