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target-ppc: disable unsupported modes for SPR_CTRL/SPR_UCTRL 

The Figure 17 "SPR encodings" of the PowerISA 2.07 describes CTRL SPR as:

                       priviledged
#   spr5-9 spr0-4 name mtspr mfspr len cat
136 00100  01000  CTRL   -    no    32  S
152 00100  11000  CTRL  yes    -    32  S

According to this chart, the hypervisor's CTRL (#152) does not support
reading, the user-space's CTRL (UCTRL, #136) does not support writing.

This replaces unsupported operations with the default SPR_NOACCESS hook.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexey Kardashevskiy 2013-12-23 13:42:22 +11:00 committed by Alexander Graf
parent 3052f0d594
commit 4e38181979
1 changed files with 6 additions and 6 deletions
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12
target-ppc/translate_init.c
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@ -6739,11 +6739,11 @@ static void init_proc_970FX (CPUPPCState *env)
0x00000000);
spr_register(env, SPR_CTRL, "SPR_CTRL",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
SPR_NOACCESS, &spr_write_generic,
0x00000000);
spr_register(env, SPR_UCTRL, "SPR_UCTRL",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, SPR_NOACCESS,
0x00000000);
spr_register(env, SPR_VRSAVE, "SPR_VRSAVE",
&spr_read_generic, &spr_write_generic,
@ -6909,11 +6909,11 @@ static void init_proc_power5plus(CPUPPCState *env)
0x00000000);
spr_register(env, SPR_CTRL, "SPR_CTRL",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
SPR_NOACCESS, &spr_write_generic,
0x00000000);
spr_register(env, SPR_UCTRL, "SPR_UCTRL",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, SPR_NOACCESS,
0x00000000);
spr_register(env, SPR_VRSAVE, "SPR_VRSAVE",
&spr_read_generic, &spr_write_generic,
@ -7014,11 +7014,11 @@ static void init_proc_POWER7 (CPUPPCState *env)
/* XXX : not implemented */
spr_register(env, SPR_CTRL, "SPR_CTRLT",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
SPR_NOACCESS, &spr_write_generic,
0x80800000);
spr_register(env, SPR_UCTRL, "SPR_CTRLF",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_generic, SPR_NOACCESS,
0x80800000);
spr_register(env, SPR_VRSAVE, "SPR_VRSAVE",
&spr_read_generic, &spr_write_generic,