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| author | Joel Stanley <joel@jms.id.au> | 2023-07-19 14:59:20 +0930 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2023-09-06 11:19:32 +0200 |
| commit | 99837aa88ce0494f8adb0ebf6bc7ce951f048a8d (patch) | |
| tree | aeefd2d0a32298f70e0cf57950831c3b1871ab04 /target/ppc | |
| parent | 0fdf05d774a5f6b701459d61e7875229667cacbd (diff) | |
| download | qemu-99837aa88ce0494f8adb0ebf6bc7ce951f048a8d.zip qemu-99837aa88ce0494f8adb0ebf6bc7ce951f048a8d.tar.gz qemu-99837aa88ce0494f8adb0ebf6bc7ce951f048a8d.tar.bz2 | |
ppc: Add stub implementation of TRIG SPRs
Linux sets these to control cache flush behaviour on Power9. Supervisor
and hypervisor are allowed to write, and reads are noops.
Add implementations to avoid noisy messages when booting Linux under the
pseries machine with guest_errors enabled.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'target/ppc')
| -rw-r--r-- | target/ppc/cpu.h | 2 | ||||
| -rw-r--r-- | target/ppc/cpu_init.c | 10 |
2 files changed, 12 insertions, 0 deletions
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 25fac95..6826702 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1897,7 +1897,9 @@ void ppc_compat_add_property(Object *obj, const char *name, #define SPR_PSSCR (0x357) #define SPR_440_INV0 (0x370) #define SPR_440_INV1 (0x371) +#define SPR_TRIG1 (0x371) #define SPR_440_INV2 (0x372) +#define SPR_TRIG2 (0x372) #define SPR_440_INV3 (0x373) #define SPR_440_ITV0 (0x374) #define SPR_440_ITV1 (0x375) diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 02b7aad..3b6ccb5 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -5660,6 +5660,16 @@ static void register_power_common_book4_sprs(CPUPPCState *env) SPR_NOACCESS, SPR_NOACCESS, &spr_read_tfmr, &spr_write_tfmr, 0x00000000); + spr_register_hv(env, SPR_TRIG1, "TRIG1", + SPR_NOACCESS, SPR_NOACCESS, + &spr_access_nop, &spr_write_generic, + &spr_access_nop, &spr_write_generic, + 0x00000000); + spr_register_hv(env, SPR_TRIG2, "TRIG2", + SPR_NOACCESS, SPR_NOACCESS, + &spr_access_nop, &spr_write_generic, + &spr_access_nop, &spr_write_generic, + 0x00000000); #endif } |