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From: Rusty Russell <rusty@rustcorp.com.au>
To: qemu-devel@nongnu.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Subject: [Qemu-devel] [PATCH 2/8] target-ppc: ppc64 target's virtio can be either endian.
Date: Mon, 12 Aug 2013 17:29:22 +0930	[thread overview]
Message-ID: <1376294363-4650-3-git-send-email-rusty@rustcorp.com.au> (raw)
In-Reply-To: <1376294363-4650-1-git-send-email-rusty@rustcorp.com.au>

We base it on the OS endian, as reflected by the endianness of the
interrupt vectors.

Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 target-ppc/misc_helper.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/target-ppc/misc_helper.c b/target-ppc/misc_helper.c
index 616aab6..6c97c81 100644
--- a/target-ppc/misc_helper.c
+++ b/target-ppc/misc_helper.c
@@ -20,6 +20,7 @@
 #include "helper.h"
 
 #include "helper_regs.h"
+#include "hw/virtio/virtio.h"
 
 /*****************************************************************************/
 /* SPR accesses */
@@ -116,3 +117,11 @@ void ppc_store_msr(CPUPPCState *env, target_ulong value)
 {
     hreg_store_msr(env, value, 0);
 }
+
+bool virtio_get_byteswap(void)
+{
+    PowerPCCPU *cp = POWERPC_CPU(first_cpu);
+    CPUPPCState *env = &cp->env;
+
+    return env->spr[SPR_LPCR] & LPCR_ILE;
+}
-- 
1.8.1.2

  parent reply	other threads:[~2013-08-12  8:01 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-12  7:59 [Qemu-devel] [PATCH 0/8] virtio for endian curious guests Take #2 Rusty Russell
2013-08-12  7:59 ` [Qemu-devel] [PATCH 1/8] virtio_get_byteswap: function for endian-ambivalent targets using virtio Rusty Russell
2013-08-12  9:28   ` Benjamin Herrenschmidt
2013-08-12  9:39     ` Peter Maydell
2013-08-12  9:43       ` Benjamin Herrenschmidt
2013-08-12  9:45         ` Peter Maydell
2013-08-12  9:50           ` Benjamin Herrenschmidt
2013-08-12  9:52             ` Peter Maydell
2013-08-12  9:56               ` Benjamin Herrenschmidt
2013-08-12 10:36                 ` Peter Maydell
2013-08-12 12:56     ` Anthony Liguori
2013-08-13  4:20       ` Rusty Russell
2013-08-13  5:30         ` Benjamin Herrenschmidt
2013-08-14  0:03           ` Rusty Russell
2013-09-06  2:27     ` Rusty Russell
2013-08-12  7:59 ` Rusty Russell [this message]
2013-08-12  7:59 ` [Qemu-devel] [PATCH 3/8] virtio: allow byte swapping for vring and config access Rusty Russell
2013-09-09 12:44   ` [Qemu-devel] [PATCH] hw/9pfs/virtio_9p_device: use virtio wrappers to access headers Greg Kurz
2013-09-10  5:21     ` Rusty Russell

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