From patchwork Sat May 18 09:31:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 13667540 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1F3C9C25B79 for ; Sat, 18 May 2024 09:33:46 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s8GQj-0006Tz-Cj; Sat, 18 May 2024 05:32:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s8GQg-0006ST-3z; Sat, 18 May 2024 05:32:38 -0400 Received: from mail-pl1-x632.google.com ([2607:f8b0:4864:20::632]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1s8GQb-0005qX-Tp; Sat, 18 May 2024 05:32:37 -0400 Received: by mail-pl1-x632.google.com with SMTP id d9443c01a7336-1ec69e3dbcfso34485645ad.0; Sat, 18 May 2024 02:32:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1716024745; x=1716629545; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FHqcueLBkS8ANZ0j7fPRW9oemlEK95KWCnXRcDNjUxA=; b=d8179XgBD5n2d5A3VH/r076SXiYkRlqDFqX7t/bw7bP2R5sYpiH20HeOxiOxWpc+33 B58z4h3NNfopdwVPk5Xl2Ytu+8tuDgLYuz0hgh09U8KC6pwGksrH15cD6Fp9JXfoeT1p FzCj82jukhLVj5fR81OcQc1Cgs5L5878i3aze6JwdemDFBqrZbSXKxXaas+UPsdwwPUY MIJXSXE6FjwLSkE+Rt68mHMdmeJC5LvnTGgN/z04GOvOGAPxtZEDXtMOFC3dHAK0tRVZ 1+GQyfg6GDJ4jnhmCJPFgsQ03pLaKioZgfFGkD4j40ipQZrL8GaSy9+v7u8RV7rFdLfB 5vOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716024745; x=1716629545; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=FHqcueLBkS8ANZ0j7fPRW9oemlEK95KWCnXRcDNjUxA=; b=KSWBbJ7KcRnMDP+AiIxcGd2fKaXknaZLsu8hkS2eGk76YCSUyioNQ72/EbtOsjMgLV EC9niNa9z6oAuiS6rEhVDeYCcSpmbBHZQB/eVLZ1P39ZpPAPep8VpfJJqDMabBw0ZpFj xO91WXu8Rt1a+2gwaNriRCq2kOFWqgidM/uYsoXxd4YN9IylEC1vJ3NaPwZrXbYdeHyb y7sMKbDwylktZyM52p4nb5yx+hvZ3INyLnEWbo2gJW5FpfGrogEsETe7HzXMXcm6KGmL h7BZDnQGMP5vw8i1mEvoHCr+yJWUdd4NnnE+5jc02mWHLSbs/YosnfxyAjaRPj/W0bSt ZLlw== X-Forwarded-Encrypted: i=1; AJvYcCW5jzm841YjmGfkGmQR5dD48CkXtWSlCtQwJ3osC7T4l1CRm4p8kpboqL2e4Dg3Zwu+xsTe7SO6rdJ3fU1G3EQ2DPNDT2w= X-Gm-Message-State: AOJu0YwZc78qWhkXkQcd06xzJ8n1HIwZEsKhSWEtzQhvdtkm89Asu8A0 1awPUec6NoQCapX040PHiZ3U5JfeqpFPH9G4wgpY6nQi5GxJghauXGmYkA== X-Google-Smtp-Source: AGHT+IFHZ9zR0H59QpBiHaMQuvzRswhK7g4oaBUabLGqBSKQwbrJMHMUfD5loJOSMgpqlXurVXXPhw== X-Received: by 2002:a05:6a20:9709:b0:1af:6a37:3cfd with SMTP id adf61e73a8af0-1afde0d5439mr19060628637.24.1716024744629; Sat, 18 May 2024 02:32:24 -0700 (PDT) Received: from wheely.local0.net (110-175-65-7.tpgi.com.au. [110.175.65.7]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2b628ea6a05sm18518901a91.52.2024.05.18.02.32.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 May 2024 02:32:24 -0700 (PDT) From: Nicholas Piggin To: qemu-ppc@nongnu.org Cc: Nicholas Piggin , qemu-devel@nongnu.org, Daniel Henrique Barboza , Glenn Miles Subject: [PATCH 05/14] target/ppc: Implement attn instruction on BookS 64-bit processors Date: Sat, 18 May 2024 19:31:47 +1000 Message-ID: <20240518093157.407144-6-npiggin@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240518093157.407144-1-npiggin@gmail.com> References: <20240518093157.407144-1-npiggin@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::632; envelope-from=npiggin@gmail.com; helo=mail-pl1-x632.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 --- 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),