[Qemu-devel] [PATCH 3/4] hw/arm/virt: Load bios image to MemoryRegion, not physaddr

[Peter Maydell <peter.maydell@linaro.org>]

If we're loading a BIOS image into the first flash device,
load it into the flash's memory region specifically, not
into the physical address where the flash resides. This will
make a difference when the flash might be in the Secure
address space rather than the Nonsecure one.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/virt.c | 39 ++++++++++++++++++++-------------------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 5bdfe0f..391cf3f 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -679,13 +679,14 @@ static void create_virtio_devices(const VirtBoardInfo *vbi, qemu_irq *pic)
 }
 
 static void create_one_flash(const char *name, hwaddr flashbase,
-                             hwaddr flashsize)
+                             hwaddr flashsize, const char *file)
 {
     /* Create and map a single flash device. We use the same
      * parameters as the flash devices on the Versatile Express board.
      */
     DriveInfo *dinfo = drive_get_next(IF_PFLASH);
     DeviceState *dev = qdev_create(NULL, "cfi.pflash01");
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     const uint64_t sectorlength = 256 * 1024;
 
     if (dinfo) {
@@ -705,19 +706,9 @@ static void create_one_flash(const char *name, hwaddr flashbase,
     qdev_prop_set_string(dev, "name", name);
     qdev_init_nofail(dev);
 
-    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, flashbase);
-}
-
-static void create_flash(const VirtBoardInfo *vbi)
-{
-    /* Create two flash devices to fill the VIRT_FLASH space in the memmap.
-     * Any file passed via -bios goes in the first of these.
-     */
-    hwaddr flashsize = vbi->memmap[VIRT_FLASH].size / 2;
-    hwaddr flashbase = vbi->memmap[VIRT_FLASH].base;
-    char *nodename;
+    sysbus_mmio_map(sbd, 0, flashbase);
 
-    if (bios_name) {
+    if (file) {
         char *fn;
         int image_size;
 
@@ -727,21 +718,31 @@ static void create_flash(const VirtBoardInfo *vbi)
                          "but you cannot use both options at once");
             exit(1);
         }
-        fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+        fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, file);
         if (!fn) {
-            error_report("Could not find ROM image '%s'", bios_name);
+            error_report("Could not find ROM image '%s'", file);
             exit(1);
         }
-        image_size = load_image_targphys(fn, flashbase, flashsize);
+        image_size = load_image_mr(fn, sysbus_mmio_get_region(sbd, 0));
         g_free(fn);
         if (image_size < 0) {
-            error_report("Could not load ROM image '%s'", bios_name);
+            error_report("Could not load ROM image '%s'", file);
             exit(1);
         }
     }
+}
+
+static void create_flash(const VirtBoardInfo *vbi)
+{
+    /* Create two flash devices to fill the VIRT_FLASH space in the memmap.
+     * Any file passed via -bios goes in the first of these.
+     */
+    hwaddr flashsize = vbi->memmap[VIRT_FLASH].size / 2;
+    hwaddr flashbase = vbi->memmap[VIRT_FLASH].base;
+    char *nodename;
 
-    create_one_flash("virt.flash0", flashbase, flashsize);
-    create_one_flash("virt.flash1", flashbase + flashsize, flashsize);
+    create_one_flash("virt.flash0", flashbase, flashsize, bios_name);
+    create_one_flash("virt.flash1", flashbase + flashsize, flashsize, NULL);
 
     nodename = g_strdup_printf("/flash@%" PRIx64, flashbase);
     qemu_fdt_add_subnode(vbi->fdt, nodename);
-- 
1.9.1