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[Qemu-devel] [PATCH] PPC: Add PIR register to POWER7 CPU
From: |
Nathan Whitehorn |
Subject: |
[Qemu-devel] [PATCH] PPC: Add PIR register to POWER7 CPU |
Date: |
Sat, 03 Mar 2012 10:36:36 -0600 |
User-agent: |
Mozilla/5.0 (X11; FreeBSD amd64; rv:10.0) Gecko/20120212 Thunderbird/10.0 |
The POWER7 emulation is missing the Processor Identification Register,
mandatory in recent POWER CPUs, that is required for SMP on at least
some operating systems (e.g. FreeBSD) to function properly. This patch
copies the existing PIR code from the other CPUs that implement it.
Signed-off-by: Nathan Whitehorn <address@hidden>
---
target-ppc/translate_init.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 8a7233f..01f4030 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -6537,6 +6537,11 @@ static void init_proc_POWER7 (CPUPPCState *env)
/* Time base */
gen_tbl(env);
#if !defined(CONFIG_USER_ONLY)
+ /* Processor identification */
+ spr_register(env, SPR_PIR, "PIR",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_pir,
+ 0x00000000);
/* PURR & SPURR: Hack - treat these as aliases for the TB for now */
spr_register(env, SPR_PURR, "PURR",
&spr_read_purr, SPR_NOACCESS,
--
1.7.9
- [Qemu-devel] [PATCH] PPC: Add PIR register to POWER7 CPU,
Nathan Whitehorn <=