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target-ppc: Add more stubs for POWER7 PMU registers

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In addition to the performance monitor registers found on nearly all
6xx chips, the POWER7 has two additional counters (PMC5 & PMC6) and an
extra control register (MMCRA).  This patch adds stub support for them to
qemu - the registers won't do anything, but with this change won't cause
illegal instruction traps accessing them.  They're also registered with
their ONE_REG ids, so their value will be kept in sync with KVM where
appropriate.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2013-04-07 19:08:20 +00:00 committed by Alexander Graf
parent 0cbad81f70
commit 702763fa32
2 changed files with 13 additions and 0 deletions
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1
target-ppc/cpu.h
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@ -1445,6 +1445,7 @@ static inline void cpu_clone_regs(CPUPPCState *env, target_ulong newsp)
#define SPR_PERF2 (0x302)
#define SPR_RCPU_MI_RBA2 (0x302)
#define SPR_MPC_MI_AP (0x302)
#define SPR_MMCRA (0x302)
#define SPR_PERF3 (0x303)
#define SPR_RCPU_MI_RBA3 (0x303)
#define SPR_MPC_MI_EPN (0x303)

12
target-ppc/translate_init.c
View File

@ -6977,6 +6977,18 @@ static void init_proc_POWER7 (CPUPPCState *env)
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
KVM_REG_PPC_DSCR, 0x00000000);
spr_register_kvm(env, SPR_MMCRA, "SPR_MMCRA",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
KVM_REG_PPC_MMCRA, 0x00000000);
spr_register_kvm(env, SPR_PMC5, "SPR_PMC5",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
KVM_REG_PPC_PMC5, 0x00000000);
spr_register_kvm(env, SPR_PMC6, "SPR_PMC6",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
KVM_REG_PPC_PMC6, 0x00000000);
#endif /* !CONFIG_USER_ONLY */
/* Memory management */
/* XXX : not implemented */