Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

[mirror_qemu.git] / hw / core / loader.c

diff --git a/hw/core/loader.c b/hw/core/loader.c
index 87287b6510f28e9aa04f0f5024c0b78687b611ad..5f3a8598c5bfd154210983df04703cca0af04f43 100644 (file)
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -89,6 +89,27 @@ int load_image(const char *filename, uint8_t *addr)
     return size;
 }
 
+/* return the size or -1 if error */
+ssize_t load_image_size(const char *filename, void *addr, size_t size)
+{
+    int fd;
+    ssize_t actsize;
+
+    fd = open(filename, O_RDONLY | O_BINARY);
+    if (fd < 0) {
+        return -1;
+    }
+
+    actsize = read(fd, addr, size);
+    if (actsize < 0) {
+        close(fd);
+        return -1;
+    }
+    close(fd);
+
+    return actsize;
+}
+
 /* read()-like version */
 ssize_t read_targphys(const char *name,
                       int fd, hwaddr dst_addr, size_t nbytes)