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PPC: Add PIR register to POWER7 CPU

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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 <nwhitehorn@freebsd.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Nathan Whitehorn 2012-03-03 06:36:36 +00:00 committed by Alexander Graf
parent 76ab9583ce
commit 2e06214f22
1 changed files with 5 additions and 0 deletions
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5
target-ppc/translate_init.c
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@ -6588,6 +6588,11 @@ static void init_proc_POWER7 (CPUPPCState *env)
gen_spr_7xx(env);
/* Time base */
gen_tbl(env);
/* Processor identification */
spr_register(env, SPR_PIR, "PIR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_pir,
0x00000000);
#if !defined(CONFIG_USER_ONLY)
/* PURR & SPURR: Hack - treat these as aliases for the TB for now */
spr_register(env, SPR_PURR, "PURR",