File 0126-target-ppc-enable-virtio-endian-amb.patch of Package qemu.820

Overview Repositories Revisions Requests Users Attributes Meta

File 0126-target-ppc-enable-virtio-endian-amb.patch of Package qemu.820

From 41503a567a9dcd01c24731b19069289f54e7be00 Mon Sep 17 00:00:00 2001
From: Greg Kurz <gkurz@linux.vnet.ibm.com>
Date: Tue, 24 Jun 2014 19:51:19 +0200
Subject: [PATCH] target-ppc: enable virtio endian ambivalent support

The device endianness is the cpu endianness at device reset time.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 7826c2b2a46988c278fbea5e1e376cf783f8bc46)
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 target-ppc/cpu.h            |  2 ++
 target-ppc/translate_init.c | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index b8af711..d447318 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -29,6 +29,8 @@
 #define TARGET_LONG_BITS 64
 #define TARGET_PAGE_BITS 12
 
+#define TARGET_IS_BIENDIAN 1
+
 /* Note that the official physical address space bits is 62-M where M
    is implementation dependent.  I've not looked up M for the set of
    cpus we emulate at the system level.  */
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 2b95fe7..86ce3d3 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8638,6 +8638,18 @@ static void ppc_cpu_reset(CPUState *s)
     tlb_flush(s, 1);
 }
 
+#ifndef CONFIG_USER_ONLY
+static bool ppc_cpu_is_big_endian(CPUState *cs)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
+    CPUPPCState *env = &cpu->env;
+
+    cpu_synchronize_state(cs);
+
+    return !msr_le;
+}
+#endif
+
 static void ppc_cpu_initfn(Object *obj)
 {
     CPUState *cs = CPU(obj);
@@ -8726,6 +8738,9 @@ static void ppc_cpu_class_init(ObjectClass *oc, void *data)
 #else
     cc->gdb_core_xml_file = "power-core.xml";
 #endif
+#ifndef CONFIG_USER_ONLY
+    cc->virtio_is_big_endian = ppc_cpu_is_big_endian;
+#endif
 
     dc->fw_name = "PowerPC,UNKNOWN";
 }

Places

File 0126-target-ppc-enable-virtio-endian-amb.patch of Package qemu.820

Places