[Qemu-devel] [PATCH 3/3] target-xtensa: treat uImage load address as virtual

[Max Filippov <jcmvbkbc@gmail.com>]

U-boot for xtensa always treats uImage load address as virtual address.
This is important when booting uImage on xtensa core with MMUv2, because
MMUv2 has fixed non-identity virtual-to-physical mapping after reset.

Always do virtual-to-physical translation of uImage load address and
load uImage at the translated address. This fixes booting uImage kernels
on dc232b and other MMUv2 cores.

Cc: qemu-stable@nongnu.org
Reported-by: Waldemar Brodkorb <mail@waldemar-brodkorb.de>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 hw/xtensa/xtfpga.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index a2dff5a..71be863 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -323,9 +323,16 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
         if (success > 0) {
             entry_point = elf_entry;
         } else {
+            uboot_image_header_t hdr;
             hwaddr ep;
             int is_linux;
-            success = load_uimage(kernel_filename, &ep, NULL, &is_linux);
+
+            success = load_uboot_image_header(kernel_filename, &hdr);
+            if (success == 0) {
+                success = load_uimage_at(kernel_filename, &ep,
+                                         translate_phys_addr(cpu, hdr.ih_load),
+                                         &is_linux);
+            }
             if (success > 0 && is_linux) {
                 entry_point = ep;
             } else {
-- 
1.8.1.4