This allow running PPC64 little-endian in user mode if target is configured
that way. In PPC64 LE user mode we set MSR.LE during initialization.
Overhaul handling of byteswapping in code generation and mem helpers.
Signed-off-by: Doug Kwan <address@hidden>
---
target-ppc/mem_helper.c | 25 ++++++--
target-ppc/translate.c | 150 +++++++++++++++++---------------------------
target-ppc/translate_init.c | 9 +++
3 files changed, 89 insertions(+), 95 deletions(-)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 4d94015..84381ae 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8418,6 +8418,9 @@ static void ppc_cpu_reset(CPUState *s)
msr |= (target_ulong)1 << MSR_VR; /* Allow altivec usage */
msr |= (target_ulong)1 << MSR_SPE; /* Allow SPE usage */
msr |= (target_ulong)1 << MSR_PR;
+#if !defined(TARGET_WORDS_BIGENDIAN)
+ msr |= (target_ulong)1 << MSR_LE; /* Little-endian user mode */
+#endif
#endif
#if defined(TARGET_PPC64)
@@ -8461,6 +8464,12 @@ static void ppc_cpu_reset(CPUState *s)
/* Flush all TLBs */
tlb_flush(s, 1);
+
+#if defined(CONFIG_USER_ONLY) && !defined(TARGET_WORDS_BIGENDIAN)
+ if (!msr_le) {
+ cpu_abort(CPU(cpu), "Cannot set QEMU to little-endian user mode\n");