From: Nicholas Piggin <npiggin@gmail.com>
To: qemu-ppc@nongnu.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
qemu-devel@nongnu.org,
Daniel Henrique Barboza <danielhb413@gmail.com>,
Glenn Miles <milesg@linux.vnet.ibm.com>
Subject: [PATCH 05/14] target/ppc: Implement attn instruction on BookS 64-bit processors
Date: Sat, 18 May 2024 19:31:47 +1000 [thread overview]
Message-ID: <20240518093157.407144-6-npiggin@gmail.com> (raw)
In-Reply-To: <20240518093157.407144-1-npiggin@gmail.com>
attn is an implementation-specific instruction that on POWER (and G5/
970) can be enabled with a HID bit (disabled = illegal), and executing
it causes the host processor to stop and the service processor to be
notified. Generally used for debugging.
Implement attn and make it checkstop the system, which should be good
enough for QEMU debugging.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
target/ppc/cpu.h | 16 +++++++-
target/ppc/helper.h | 1 +
target/ppc/cpu_init.c | 82 +++++++++++++++++++++++++++++++++++++---
target/ppc/excp_helper.c | 39 +++++++++++++++----
target/ppc/translate.c | 11 ++++++
5 files changed, 135 insertions(+), 14 deletions(-)
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index c358927211..2f7fab22ba 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1375,6 +1375,9 @@ struct CPUArchState {
/* Power management */
int (*check_pow)(CPUPPCState *env);
+ /* attn instruction enable */
+ int (*check_attn)(CPUPPCState *env);
+
#if !defined(CONFIG_USER_ONLY)
void *load_info; /* holds boot loading state */
#endif
@@ -1523,6 +1526,7 @@ struct PowerPCCPUClass {
int n_host_threads;
void (*init_proc)(CPUPPCState *env);
int (*check_pow)(CPUPPCState *env);
+ int (*check_attn)(CPUPPCState *env);
};
ObjectClass *ppc_cpu_class_by_name(const char *name);
@@ -2320,6 +2324,8 @@ void ppc_compat_add_property(Object *obj, const char *name,
#define HID0_NAP (1 << 22) /* pre-2.06 */
#define HID0_HILE PPC_BIT(19) /* POWER8 */
#define HID0_POWER9_HILE PPC_BIT(4)
+#define HID0_ENABLE_ATTN PPC_BIT(31) /* POWER8 */
+#define HID0_POWER9_ENABLE_ATTN PPC_BIT(3)
/*****************************************************************************/
/* PowerPC Instructions types definitions */
@@ -2516,6 +2522,8 @@ enum {
PPC2_MEM_LWSYNC = 0x0000000000200000ULL,
/* ISA 2.06 BCD assist instructions */
PPC2_BCDA_ISA206 = 0x0000000000400000ULL,
+ /* attn instruction found in IBM POWER (including 970) */
+ PPC2_ATTN = 0x0000000000800000ULL,
#define PPC_TCG_INSNS2 (PPC2_BOOKE206 | PPC2_VSX | PPC2_PRCNTL | PPC2_DBRX | \
PPC2_ISA205 | PPC2_VSX207 | PPC2_PERM_ISA206 | \
@@ -2525,7 +2533,7 @@ enum {
PPC2_ALTIVEC_207 | PPC2_ISA207S | PPC2_DFP | \
PPC2_FP_CVT_S64 | PPC2_TM | PPC2_PM_ISA206 | \
PPC2_ISA300 | PPC2_ISA310 | PPC2_MEM_LWSYNC | \
- PPC2_BCDA_ISA206)
+ PPC2_BCDA_ISA206 | PPC2_ATTN)
};
/*****************************************************************************/
@@ -3025,6 +3033,12 @@ static inline int check_pow_nocheck(CPUPPCState *env)
return 1;
}
+/* attn enable check */
+static inline int check_attn_none(CPUPPCState *env)
+{
+ return 0;
+}
+
/*****************************************************************************/
/* PowerPC implementations definitions */
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index 55293e20a9..09d50f9b76 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -825,5 +825,6 @@ DEF_HELPER_FLAGS_1(fixup_thrm, TCG_CALL_NO_RWG, void, env)
#if defined(TARGET_PPC64)
DEF_HELPER_1(clrbhrb, void, env)
DEF_HELPER_FLAGS_2(mfbhrbe, TCG_CALL_NO_WG, i64, env, i32)
+DEF_HELPER_1(attn, noreturn, env)
#endif
#endif
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 1ec84b5ddc..71da8d4856 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -2107,6 +2107,26 @@ static int check_pow_hid0_74xx(CPUPPCState *env)
return 0;
}
+#if defined(TARGET_PPC64)
+static int check_attn_hid0(CPUPPCState *env)
+{
+ if (env->spr[SPR_HID0] & HID0_ENABLE_ATTN) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static int check_attn_hid0_power9(CPUPPCState *env)
+{
+ if (env->spr[SPR_HID0] & HID0_POWER9_ENABLE_ATTN) {
+ return 1;
+ }
+
+ return 0;
+}
+#endif
+
static void init_proc_405(CPUPPCState *env)
{
register_40x_sprs(env);
@@ -2138,6 +2158,7 @@ POWERPC_FAMILY(405)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 405";
pcc->init_proc = init_proc_405;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_DCR | PPC_WRTEE |
PPC_CACHE | PPC_CACHE_ICBI | PPC_40x_ICBT |
@@ -2210,6 +2231,7 @@ POWERPC_FAMILY(440EP)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 440 EP";
pcc->init_proc = init_proc_440EP;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_FLOAT | PPC_FLOAT_FRES | PPC_FLOAT_FSEL |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -2248,6 +2270,7 @@ POWERPC_FAMILY(460EX)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 460 EX";
pcc->init_proc = init_proc_440EP;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_FLOAT | PPC_FLOAT_FRES | PPC_FLOAT_FSEL |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -2308,6 +2331,7 @@ POWERPC_FAMILY(440GP)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 440 GP";
pcc->init_proc = init_proc_440GP;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_DCR | PPC_DCRX | PPC_WRTEE | PPC_MFAPIDI |
PPC_CACHE | PPC_CACHE_ICBI |
@@ -2382,6 +2406,7 @@ POWERPC_FAMILY(440x5)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 440x5";
pcc->init_proc = init_proc_440x5;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_DCR | PPC_WRTEE | PPC_RFMCI |
PPC_CACHE | PPC_CACHE_ICBI |
@@ -2417,6 +2442,7 @@ POWERPC_FAMILY(440x5wDFPU)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 440x5 with double precision FPU";
pcc->init_proc = init_proc_440x5;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_FLOAT | PPC_FLOAT_FSQRT |
PPC_FLOAT_STFIWX |
@@ -2465,6 +2491,7 @@ POWERPC_FAMILY(MPC5xx)(ObjectClass *oc, void *data)
dc->desc = "Freescale 5xx cores (aka RCPU)";
pcc->init_proc = init_proc_MPC5xx;
pcc->check_pow = check_pow_none;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_MEM_EIEIO | PPC_MEM_SYNC |
PPC_CACHE_ICBI | PPC_FLOAT | PPC_FLOAT_STFIWX |
@@ -2507,6 +2534,7 @@ POWERPC_FAMILY(MPC8xx)(ObjectClass *oc, void *data)
dc->desc = "Freescale 8xx cores (aka PowerQUICC)";
pcc->init_proc = init_proc_MPC8xx;
pcc->check_pow = check_pow_none;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING |
PPC_MEM_EIEIO | PPC_MEM_SYNC |
PPC_CACHE_ICBI | PPC_MFTB;
@@ -2557,6 +2585,7 @@ POWERPC_FAMILY(G2)(ObjectClass *oc, void *data)
dc->desc = "PowerPC G2";
pcc->init_proc = init_proc_G2;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_STFIWX |
@@ -2595,6 +2624,7 @@ POWERPC_FAMILY(G2LE)(ObjectClass *oc, void *data)
dc->desc = "PowerPC G2LE";
pcc->init_proc = init_proc_G2;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_STFIWX |
@@ -2741,6 +2771,7 @@ POWERPC_FAMILY(e200)(ObjectClass *oc, void *data)
dc->desc = "e200 core";
pcc->init_proc = init_proc_e200;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
/*
* XXX: unimplemented instructions:
* dcblc
@@ -3029,6 +3060,7 @@ POWERPC_FAMILY(e500v1)(ObjectClass *oc, void *data)
dc->desc = "e500v1 core";
pcc->init_proc = init_proc_e500v1;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL |
PPC_SPE | PPC_SPE_SINGLE |
PPC_WRTEE | PPC_RFDI |
@@ -3072,6 +3104,7 @@ POWERPC_FAMILY(e500v2)(ObjectClass *oc, void *data)
dc->desc = "e500v2 core";
pcc->init_proc = init_proc_e500v2;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL |
PPC_SPE | PPC_SPE_SINGLE | PPC_SPE_DOUBLE |
PPC_WRTEE | PPC_RFDI |
@@ -3115,6 +3148,7 @@ POWERPC_FAMILY(e500mc)(ObjectClass *oc, void *data)
dc->desc = "e500mc core";
pcc->init_proc = init_proc_e500mc;
pcc->check_pow = check_pow_none;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_MFTB |
PPC_WRTEE | PPC_RFDI | PPC_RFMCI |
PPC_CACHE | PPC_CACHE_LOCK | PPC_CACHE_ICBI |
@@ -3161,6 +3195,7 @@ POWERPC_FAMILY(e5500)(ObjectClass *oc, void *data)
dc->desc = "e5500 core";
pcc->init_proc = init_proc_e5500;
pcc->check_pow = check_pow_none;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_MFTB |
PPC_WRTEE | PPC_RFDI | PPC_RFMCI |
PPC_CACHE | PPC_CACHE_LOCK | PPC_CACHE_ICBI |
@@ -3209,6 +3244,7 @@ POWERPC_FAMILY(e6500)(ObjectClass *oc, void *data)
dc->desc = "e6500 core";
pcc->init_proc = init_proc_e6500;
pcc->check_pow = check_pow_none;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_MFTB |
PPC_WRTEE | PPC_RFDI | PPC_RFMCI |
PPC_CACHE | PPC_CACHE_LOCK | PPC_CACHE_ICBI |
@@ -3271,6 +3307,7 @@ POWERPC_FAMILY(603)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 603";
pcc->init_proc = init_proc_603;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3310,6 +3347,7 @@ POWERPC_FAMILY(603E)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 603e";
pcc->init_proc = init_proc_603;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3355,6 +3393,7 @@ POWERPC_FAMILY(e300)(ObjectClass *oc, void *data)
dc->desc = "e300 core";
pcc->init_proc = init_proc_e300;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_STFIWX |
@@ -3410,6 +3449,7 @@ POWERPC_FAMILY(604)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 604";
pcc->init_proc = init_proc_604;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3455,6 +3495,7 @@ POWERPC_FAMILY(604E)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 604E";
pcc->init_proc = init_proc_604E;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3511,6 +3552,7 @@ POWERPC_FAMILY(740)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 740";
pcc->init_proc = init_proc_740;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3576,6 +3618,7 @@ POWERPC_FAMILY(750)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 750";
pcc->init_proc = init_proc_750;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3722,6 +3765,7 @@ POWERPC_FAMILY(750cl)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 750 CL";
pcc->init_proc = init_proc_750cl;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
/*
* XXX: not implemented:
* cache lock instructions:
@@ -3829,6 +3873,7 @@ POWERPC_FAMILY(750cx)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 750CX";
pcc->init_proc = init_proc_750cx;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3901,6 +3946,7 @@ POWERPC_FAMILY(750fx)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 750FX";
pcc->init_proc = init_proc_750fx;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -3973,6 +4019,7 @@ POWERPC_FAMILY(750gx)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 750GX";
pcc->init_proc = init_proc_750gx;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -4032,6 +4079,7 @@ POWERPC_FAMILY(745)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 745";
pcc->init_proc = init_proc_745;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -4077,6 +4125,7 @@ POWERPC_FAMILY(755)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 755";
pcc->init_proc = init_proc_755;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
@@ -4143,6 +4192,7 @@ POWERPC_FAMILY(7400)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7400 (aka G4)";
pcc->init_proc = init_proc_7400;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4222,6 +4272,7 @@ POWERPC_FAMILY(7410)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7410 (aka G4)";
pcc->init_proc = init_proc_7410;
pcc->check_pow = check_pow_hid0;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4322,6 +4373,7 @@ POWERPC_FAMILY(7440)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7440 (aka G4)";
pcc->init_proc = init_proc_7440;
pcc->check_pow = check_pow_hid0_74xx;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4444,6 +4496,7 @@ POWERPC_FAMILY(7450)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7450 (aka G4)";
pcc->init_proc = init_proc_7450;
pcc->check_pow = check_pow_hid0_74xx;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4573,6 +4626,7 @@ POWERPC_FAMILY(7445)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7445 (aka G4)";
pcc->init_proc = init_proc_7445;
pcc->check_pow = check_pow_hid0_74xx;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4704,6 +4758,7 @@ POWERPC_FAMILY(7455)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7455 (aka G4)";
pcc->init_proc = init_proc_7455;
pcc->check_pow = check_pow_hid0_74xx;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4855,6 +4910,7 @@ POWERPC_FAMILY(7457)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 7457 (aka G4)";
pcc->init_proc = init_proc_7457;
pcc->check_pow = check_pow_hid0_74xx;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -4989,6 +5045,7 @@ POWERPC_FAMILY(e600)(ObjectClass *oc, void *data)
dc->desc = "PowerPC e600";
pcc->init_proc = init_proc_e600;
pcc->check_pow = check_pow_hid0_74xx;
+ pcc->check_attn = check_attn_none;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -5904,6 +5961,7 @@ POWERPC_FAMILY(970)(ObjectClass *oc, void *data)
dc->desc = "PowerPC 970";
pcc->init_proc = init_proc_970;
pcc->check_pow = check_pow_970;
+ pcc->check_attn = check_attn_hid0;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -5913,7 +5971,7 @@ POWERPC_FAMILY(970)(ObjectClass *oc, void *data)
PPC_MEM_TLBIE | PPC_MEM_TLBSYNC |
PPC_64B | PPC_ALTIVEC |
PPC_SEGMENT_64B | PPC_SLBI;
- pcc->insns_flags2 = PPC2_FP_CVT_S64 | PPC2_MEM_LWSYNC;
+ pcc->insns_flags2 = PPC2_FP_CVT_S64 | PPC2_MEM_LWSYNC | PPC2_ATTN;
pcc->msr_mask = (1ull << MSR_SF) |
(1ull << MSR_VR) |
(1ull << MSR_POW) |
@@ -5979,6 +6037,7 @@ POWERPC_FAMILY(POWER5P)(ObjectClass *oc, void *data)
dc->desc = "POWER5+";
pcc->init_proc = init_proc_power5plus;
pcc->check_pow = check_pow_970;
+ pcc->check_attn = check_attn_hid0;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -5990,7 +6049,7 @@ POWERPC_FAMILY(POWER5P)(ObjectClass *oc, void *data)
PPC_64B |
PPC_POPCNTB |
PPC_SEGMENT_64B | PPC_SLBI;
- pcc->insns_flags2 = PPC2_FP_CVT_S64 | PPC2_MEM_LWSYNC;
+ pcc->insns_flags2 = PPC2_FP_CVT_S64 | PPC2_MEM_LWSYNC | PPC2_ATTN;
pcc->msr_mask = (1ull << MSR_SF) |
(1ull << MSR_VR) |
(1ull << MSR_POW) |
@@ -6086,6 +6145,7 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
pcc->pcr_supported = PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
pcc->init_proc = init_proc_POWER7;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_hid0;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -6103,7 +6163,8 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 |
PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206 |
PPC2_FP_TST_ISA206 | PPC2_FP_CVT_S64 |
- PPC2_PM_ISA206 | PPC2_MEM_LWSYNC | PPC2_BCDA_ISA206;
+ PPC2_PM_ISA206 | PPC2_MEM_LWSYNC | PPC2_BCDA_ISA206 |
+ PPC2_ATTN;
pcc->msr_mask = (1ull << MSR_SF) |
(1ull << MSR_VR) |
(1ull << MSR_VSX) |
@@ -6247,6 +6308,7 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
pcc->pcr_supported = PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
pcc->init_proc = init_proc_POWER8;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_hid0;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -6267,7 +6329,7 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 |
PPC2_TM | PPC2_PM_ISA206 | PPC2_MEM_LWSYNC |
- PPC2_BCDA_ISA206;
+ PPC2_BCDA_ISA206 | PPC2_ATTN;
pcc->msr_mask = (1ull << MSR_SF) |
(1ull << MSR_HV) |
(1ull << MSR_TM) |
@@ -6439,6 +6501,7 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
PCR_COMPAT_2_05;
pcc->init_proc = init_proc_POWER9;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_hid0_power9;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -6459,7 +6522,7 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 |
PPC2_TM | PPC2_ISA300 | PPC2_PRCNTL | PPC2_MEM_LWSYNC |
- PPC2_BCDA_ISA206;
+ PPC2_BCDA_ISA206 | PPC2_ATTN;
pcc->msr_mask = (1ull << MSR_SF) |
(1ull << MSR_HV) |
(1ull << MSR_TM) |
@@ -6618,6 +6681,7 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
pcc->init_proc = init_proc_POWER10;
pcc->check_pow = check_pow_nocheck;
+ pcc->check_attn = check_attn_hid0_power9;
pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
@@ -6638,7 +6702,7 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 |
PPC2_ISA300 | PPC2_PRCNTL | PPC2_ISA310 |
- PPC2_MEM_LWSYNC | PPC2_BCDA_ISA206;
+ PPC2_MEM_LWSYNC | PPC2_BCDA_ISA206 | PPC2_ATTN;
pcc->msr_mask = (1ull << MSR_SF) |
(1ull << MSR_HV) |
(1ull << MSR_VR) |
@@ -6856,6 +6920,11 @@ static void init_ppc_proc(PowerPCCPU *cpu)
warn_report("no power management check handler registered."
" Attempt QEMU to crash very soon !");
}
+
+ if (env->check_attn == NULL) {
+ warn_report("no attn check handler registered."
+ " Attempt QEMU to crash very soon !");
+ }
}
@@ -7317,6 +7386,7 @@ static void ppc_cpu_instance_init(Object *obj)
env->flags = pcc->flags;
env->bfd_mach = pcc->bfd_mach;
env->check_pow = pcc->check_pow;
+ env->check_attn = pcc->check_attn;
/*
* Mark HV mode as supported if the CPU has an MSR_HV bit in the
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index a283c97717..28f2ab4583 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -154,6 +154,7 @@ static uint32_t ppc_ldl_code(CPUArchState *env, target_ulong addr)
return insn;
}
+
#endif
static void ppc_excp_debug_sw_tlb(CPUPPCState *env, int excp)
@@ -425,17 +426,17 @@ static void powerpc_set_excp_state(PowerPCCPU *cpu, target_ulong vector,
env->reserve_addr = -1;
}
-static void powerpc_mcheck_checkstop(CPUPPCState *env)
-{
- /* KVM guests always have MSR[ME] enabled */
#ifdef CONFIG_TCG
+/*
+ * This stops the machine and logs CPU state without killing QEMU (like
+ * cpu_abort()) because it is often a guest error as opposed to a QEMU error,
+ * so the machine can still be debugged.
+ */
+static G_NORETURN void powerpc_checkstop(CPUPPCState *env, const char *reason)
+{
CPUState *cs = env_cpu(env);
FILE *f;
- if (FIELD_EX64(env->msr, MSR, ME)) {
- return;
- }
-
f = qemu_log_trylock();
if (f) {
fprintf(f, "Entering checkstop state: "
@@ -451,6 +452,30 @@ static void powerpc_mcheck_checkstop(CPUPPCState *env)
*/
qemu_system_guest_panicked(NULL);
cpu_loop_exit_noexc(cs);
+}
+
+#ifdef TARGET_PPC64
+void helper_attn(CPUPPCState *env)
+{
+ if ((*env->check_attn)(env)) {
+ powerpc_checkstop(env, "host executed attn");
+ } else {
+ raise_exception_err(env, POWERPC_EXCP_HV_EMU,
+ POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
+ }
+}
+#endif
+#endif /* CONFIG_TCG */
+
+static void powerpc_mcheck_checkstop(CPUPPCState *env)
+{
+ /* KVM guests always have MSR[ME] enabled */
+#ifdef CONFIG_TCG
+ if (FIELD_EX64(env->msr, MSR, ME)) {
+ return;
+ }
+
+ powerpc_checkstop(env, "machine check with MSR[ME]=0");
#endif
}
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index cf2404330b..ee7f3ee5a2 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -5668,6 +5668,16 @@ static void gen_dform3D(DisasContext *ctx)
}
#if defined(TARGET_PPC64)
+/* attn */
+static void gen_attn(DisasContext *ctx)
+{
+#if defined(CONFIG_USER_ONLY)
+ GEN_PRIV(ctx);
+#else
+ gen_helper_attn(tcg_env);
+#endif
+}
+
/* brd */
static void gen_brd(DisasContext *ctx)
{
@@ -5699,6 +5709,7 @@ static void gen_brh(DisasContext *ctx)
static opcode_t opcodes[] = {
#if defined(TARGET_PPC64)
+GEN_HANDLER_E(attn, 0x00, 0x00, 0x08, 0xFFFFFDFF, PPC_NONE, PPC2_ATTN),
GEN_HANDLER_E(brd, 0x1F, 0x1B, 0x05, 0x0000F801, PPC_NONE, PPC2_ISA310),
GEN_HANDLER_E(brw, 0x1F, 0x1B, 0x04, 0x0000F801, PPC_NONE, PPC2_ISA310),
GEN_HANDLER_E(brh, 0x1F, 0x1B, 0x06, 0x0000F801, PPC_NONE, PPC2_ISA310),
--
2.43.0
next prev parent reply other threads:[~2024-05-18 9:33 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-18 9:31 [PATCH 00/14] target/ppc: Various TCG emulation patches Nicholas Piggin
2024-05-18 9:31 ` [PATCH 01/14] target/ppc: larx/stcx generation need only apply DEF_MEMOP() once Nicholas Piggin
2024-05-18 10:58 ` Richard Henderson
2024-05-18 9:31 ` [PATCH 02/14] target/ppc: Remove redundant MEMOP_GET_SIZE macro Nicholas Piggin
2024-05-18 9:57 ` BALATON Zoltan
2024-05-18 10:59 ` Richard Henderson
2024-05-18 9:31 ` [PATCH 03/14] target/ppc: Make checkstop actually stop the system Nicholas Piggin
2024-05-18 9:31 ` [PATCH 04/14] target/ppc: improve checkstop logging Nicholas Piggin
2024-05-18 9:31 ` Nicholas Piggin [this message]
2024-05-18 11:05 ` [PATCH 05/14] target/ppc: Implement attn instruction on BookS 64-bit processors Richard Henderson
2024-05-20 7:18 ` Nicholas Piggin
2024-05-18 11:07 ` Richard Henderson
2024-05-20 7:22 ` Nicholas Piggin
2024-05-18 9:31 ` [PATCH 06/14] target/ppc: BookE DECAR SPR is 32-bit Nicholas Piggin
2024-05-18 9:31 ` [PATCH 07/14] target/ppc: Wire up BookE ATB registers for e500 family Nicholas Piggin
2024-05-18 9:31 ` [PATCH 08/14] target/ppc: Add PPR32 SPR Nicholas Piggin
2024-05-18 9:31 ` [PATCH 09/14] target/ppc: add helper to write per-LPAR SPRs Nicholas Piggin
2024-05-18 11:26 ` Richard Henderson
2024-05-20 7:23 ` Nicholas Piggin
2024-05-18 9:31 ` [PATCH 10/14] target/ppc: Add SMT support to simple SPRs Nicholas Piggin
2024-05-18 9:31 ` [PATCH 11/14] target/ppc: Add SMT support to PTCR SPR Nicholas Piggin
2024-05-18 9:31 ` [PATCH 12/14] target/ppc: Implement LDBAR, TTR SPRs Nicholas Piggin
2024-05-18 9:31 ` [PATCH 13/14] target/ppc: Implement SPRC/SPRD SPRs Nicholas Piggin
2024-05-18 9:31 ` [PATCH 14/14] target/ppc: add SMT support to msgsnd broadcast Nicholas Piggin
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