[Stable-7.2.8 15/24] hw/mips/malta: Fix the malta machine on big endian hosts

[Michael Tokarev]

From: Thomas Huth <thuth@redhat.com>

Booting a Linux kernel with the malta machine is currently broken
on big endian hosts. The cpu_to_gt32 macro wants to byteswap a value
for little endian targets only, but uses the wrong way to do this:
cpu_to_[lb]e32 works the other way round on big endian hosts! Fix
it by using the same ways on both, big and little endian hosts.

Fixes: 0c8427baf0 ("hw/mips/malta: Use bootloader helper to set BAR registers")
Cc: qemu-stable@nongnu.org
Message-Id: <20230330152613.232082-1-thuth@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit dc96009afd8cf2372fa1bbced0bcbcbb2c5d6f1b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: adjust context for before v7.2.0-677-g0e45355c5c)

diff --git a/hw/mips/malta.c b/hw/mips/malta.c
index c0a2e0ab04..da7c110b73 100644
--- a/hw/mips/malta.c
+++ b/hw/mips/malta.c
@@ -877,9 +877,9 @@ static void write_bootloader(uint8_t *base, uint64_t 
run_addr,
 
     /* Bus endianess is always reversed */
 #if TARGET_BIG_ENDIAN
-#define cpu_to_gt32 cpu_to_le32
+#define cpu_to_gt32(x) (x)
 #else
-#define cpu_to_gt32 cpu_to_be32
+#define cpu_to_gt32(x) bswap32(x)
 #endif
 
     /* move GT64120 registers from 0x14000000 to 0x1be00000 */
-- 
2.39.2