diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2014-06-04 22:50:56 +1000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-06-16 13:24:44 +0200 |
| commit | 7019cb3d883c5fdd8e4e75d753eded288d94b592 (patch) | |
| tree | 866dc05ccd1fe023a1782ff6fb2bc0cad5f3a685 /target-ppc/translate_init.c | |
| parent | d1a721ab816d1b954c0988aafdec4e109b953a9f (diff) | |
target-ppc: Add POWER8's FSCR SPR
This adds an FSCR (Facility Status and Control Register) SPR. This defines
names for FSCR bits.
This defines new exception type - POWERPC_EXCP_FU - "facility unavailable" (FU).
This registers an interrupt vector for it at 0xF60 as PowerISA defines.
This adds a TCG helper_fscr_facility_check() helper to raise an exception
if the facility is not enabled. It updates the interrupt cause field
in FSCR. This adds a TCG translation block generation code. The helper
may be used for HFSCR too as it has the same format.
The helper raising FU exceptions is not used by this patch but will be
in the next ones.
This adds gen_update_current_nip() to update NIP in DisasContext.
This helper is not used now and will be called before checking for
a condition for throwing an FU exception.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/translate_init.c')
| -rw-r--r-- | target-ppc/translate_init.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index 1df69e0cfd..4e139b42cb 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -3080,6 +3080,7 @@ static void init_excp_POWER7 (CPUPPCState *env) env->excp_vectors[POWERPC_EXCP_PERFM] = 0x00000F00; env->excp_vectors[POWERPC_EXCP_VPU] = 0x00000F20; env->excp_vectors[POWERPC_EXCP_VSXU] = 0x00000F40; + env->excp_vectors[POWERPC_EXCP_FU] = 0x00000F60; env->excp_vectors[POWERPC_EXCP_IABR] = 0x00001300; env->excp_vectors[POWERPC_EXCP_MAINT] = 0x00001600; env->excp_vectors[POWERPC_EXCP_VPUA] = 0x00001700; @@ -7586,6 +7587,14 @@ static void gen_spr_power8_tce_address_control(CPUPPCState *env) 0x00000000); } +static void gen_spr_power8_fscr(CPUPPCState *env) +{ + spr_register_kvm(env, SPR_FSCR, "FSCR", + SPR_NOACCESS, SPR_NOACCESS, + &spr_read_generic, &spr_write_generic, + KVM_REG_PPC_FSCR, 0x00000000); +} + static void init_proc_book3s_64(CPUPPCState *env, int version) { gen_spr_ne_601(env); @@ -7631,6 +7640,7 @@ static void init_proc_book3s_64(CPUPPCState *env, int version) if (version >= BOOK3S_CPU_POWER8) { gen_spr_power8_tce_address_control(env); gen_spr_power8_ids(env); + gen_spr_power8_fscr(env); } #if !defined(CONFIG_USER_ONLY) switch (version) { |