[4/6] mips_malta: cap BIOS endian swap length at 0x3e0000 bytes

Submitted by Leon Alrae on June 14, 2013, 7:30 a.m.

Details

Message ID 1371195048-19618-5-git-send-email-leon.alrae@imgtec.com
State New
Headers show

Commit Message

Leon Alrae June 14, 2013, 7:30 a.m.
From: Paul Burton <paul.burton@imgtec.com>

This preserves the final sector of the pflash which is used by YAMON to
hold environment variables. If the endianness of the environment data
is swapped then YAMON will fail to load environment variables from
pflash.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
---
 hw/mips/mips_malta.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

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diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index 116a2f8..6d43e86 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -974,7 +974,7 @@  void mips_malta_init(QEMUMachineInitArgs *args)
             if (!addr) {
                 addr = memory_region_get_ram_ptr(bios);
             }
-            end = (void *)addr + bios_size;
+            end = (void *)addr + MIN(bios_size, 0x3e0000);
             while (addr < end) {
                 bswap32s(addr);
                 addr++;