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From: Greg Kurz <gkurz@linux.vnet.ibm.com>
Date: Fri, 15 Jan 2016 16:00:44 +0100
Subject: [PATCH] target-ppc: gdbstub: fix spe registers for little-endian
 guests

Let's reuse the ppc_maybe_bswap_register() helper, like we already do
with the general registers.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
(cherry picked from commit 95f5b540abd964ac3bc9c63434d07681a5a175eb)
---
 target-ppc/translate_init.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index a72e4b6..879d283 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8852,6 +8852,7 @@ static int gdb_get_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
     if (n < 32) {
 #if defined(TARGET_PPC64)
         stl_p(mem_buf, env->gpr[n] >> 32);
+        ppc_maybe_bswap_register(env, mem_buf, 4);
 #else
         stl_p(mem_buf, env->gprh[n]);
 #endif
@@ -8859,10 +8860,12 @@ static int gdb_get_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
     }
     if (n == 32) {
         stq_p(mem_buf, env->spe_acc);
+        ppc_maybe_bswap_register(env, mem_buf, 8);
         return 8;
     }
     if (n == 33) {
         stl_p(mem_buf, env->spe_fscr);
+        ppc_maybe_bswap_register(env, mem_buf, 4);
         return 4;
     }
     return 0;
@@ -8873,7 +8876,11 @@ static int gdb_set_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
     if (n < 32) {
 #if defined(TARGET_PPC64)
         target_ulong lo = (uint32_t)env->gpr[n];
-        target_ulong hi = (target_ulong)ldl_p(mem_buf) << 32;
+        target_ulong hi;
+
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+
+        hi = (target_ulong)ldl_p(mem_buf) << 32;
         env->gpr[n] = lo | hi;
 #else
         env->gprh[n] = ldl_p(mem_buf);
@@ -8881,10 +8888,12 @@ static int gdb_set_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
         return 4;
     }
     if (n == 32) {
+        ppc_maybe_bswap_register(env, mem_buf, 8);
         env->spe_acc = ldq_p(mem_buf);
         return 8;
     }
     if (n == 33) {
+        ppc_maybe_bswap_register(env, mem_buf, 4);
         env->spe_fscr = ldl_p(mem_buf);
         return 4;
     }