From nobody Wed Feb 11 02:14:50 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1739664308; cv=none; d=zohomail.com; s=zohoarc; b=a5I5Twg2ONwunbWokBxu+FuEr1s8GWK77913Bw0id07NEPjJo90u3BLisRJ8VnsUMG8lyGm52y0WvAxDxRIzrumEHebrzFx/WYi6OubxaUVWS9n3GIncxPHmM8yasbQdmnqipgbwnlxNj2kiuSS7H5a9Fl1gR9GDNByZqhqApVE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1739664308; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=jFWOgm7cwZ/f43Ltoxf8K/SGg9Wf6xR2m2O9XTNwnuM=; b=bICoPTGnhv2Trya0V6uUtkY9l4mLgbz6ThfkB10y8epgRf37dMtuSOYGVIP+wNnGvSJFUhLaeQlQEbTeLlm7JSlmegqE0zAgIXAZZx8qyCRq4xcbFezoFXih64TkraUqnbh3t/7KCWlFrg6QREM5bV3heDhQjsMVuFoNOzv9ATc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1739664308904192.26994995634948; Sat, 15 Feb 2025 16:05:08 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tjS6g-0007mH-Tf; Sat, 15 Feb 2025 19:01:58 -0500 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 1tjS6L-0007fW-RS for qemu-devel@nongnu.org; Sat, 15 Feb 2025 19:01:37 -0500 Received: from mail-pl1-x633.google.com ([2607:f8b0:4864:20::633]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tjS6J-0006Ik-NN for qemu-devel@nongnu.org; Sat, 15 Feb 2025 19:01:37 -0500 Received: by mail-pl1-x633.google.com with SMTP id d9443c01a7336-221206dbd7eso1308555ad.2 for ; Sat, 15 Feb 2025 16:01:30 -0800 (PST) Received: from stoup.. (71-212-39-66.tukw.qwest.net. [71.212.39.66]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-220d5366729sm48960315ad.79.2025.02.15.16.01.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Feb 2025 16:01:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1739664089; x=1740268889; 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=jFWOgm7cwZ/f43Ltoxf8K/SGg9Wf6xR2m2O9XTNwnuM=; b=Du3YMUDDAU9DHfAYt+BZigKH+MB0+ix3jczOLTtlya4pEGPQDfYgfxtlKoFVzeLbyC sXGLPSXseRkifvZSye8y982p3JBorLEVENCPbDBK5WqLlJoEt9AFMHwIXxajRWNyhAFx yQed3YCwggUKEcYMy8qK6s5bH7WNA609lys5myRHcGGLo14YKcqFtOIariv1bktSjy5Z rAU8SuW4FwB7hBuswAuiLWecUUzq7JQOfnS3olxtz3CEouJRFRv3WVvLL5QmbTi276Cg WO23XEvUhGyHQnFLiw/Ex+9/BmAGPOvIIyZF7K9qIL8CGSm4gsZoccr2gYEYc8f2clTa OIdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739664089; x=1740268889; 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=jFWOgm7cwZ/f43Ltoxf8K/SGg9Wf6xR2m2O9XTNwnuM=; b=u9QmtcYuABt5Me8jlw7kmLdRj3ba6Ad+5w7Lz7pmGn7104+HEvbvnxiJkcwzbb4ayW inCp0aNCufD/86Uwu+xAcr2oQYcW0o78SI9BLCWcNOQY08MZ3KWOGloPJCxENT6qZJgr RkoI7mAkyEPb5TXSkHvnsJdWI4yAzqg+XququYTBPcnmY58vy1w8C1uvN8e9k6RfMSr9 +87UKXftZLNKWvRPWI4tD1fdcizy8Nkva8Wdm3Tr7x7FfKhThNbGat8wQBE0u9mbicuP +BbJ+7R2y/y4dBH9aAF4lLyGs+4Acz7szfWduInPJEFfDuXRhRuO19+Zpx/+kA/Exi88 nAlw== X-Gm-Message-State: AOJu0Yyn+0QQbEij0LbgiNPlmMpHX7NHYNF8m85AWWWeuV4zj1r9a5Gf xKfjR8k+YbeiMFQ3mhqcn6Xmo6BXTCqWjpJ9dnbodlLn/dPDoSeJTYjIcGZMeuEzuLsRFdcrUfA X X-Gm-Gg: ASbGnctqxM3nrs6IaETQvj2x2Gy6Il26XtroM6UecY0YXg8gVm7aO4d+4lijNejPOSL rEsMznO6+ZGsX0QRK7jlH0xa9qdi4GDCZuTA/WHOr6BSxzKSqRpXQCodXy8FBG6hiDIB8Gfz1/H XgerIblhWN/+YEDmds0r/96ojwx9D/wTf0VuJsHFjFQtF2TCgieAgzhOqaJCSx1sUy+LcTtSdHo FXSUiZPgo6y6xlVhhPUtsGrMm9HwhkTyCUk8VNZA5xSn18+f+0DQyzzQl7F/EVbdDKW2D+ughyT V8nf1kyLNzAAfrOwmT+wuhJJF9yNc6rFQa6x0nSq+PLTxkc= X-Google-Smtp-Source: AGHT+IEgmlM7dSBRSe+FEzP7ch77BG1EulgN0F9u7MqTNzIYkQxXVfxcLZQ7t7mogSb2zXsd7iyvlg== X-Received: by 2002:a17:902:fc4e:b0:216:7926:8d69 with SMTP id d9443c01a7336-2210409d456mr80105305ad.47.1739664089098; Sat, 15 Feb 2025 16:01:29 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Artyom Tarasenko Subject: [PULL 24/24] target/sparc: fake UltraSPARC T1 PCR and PIC registers Date: Sat, 15 Feb 2025 16:01:08 -0800 Message-ID: <20250216000109.2606518-25-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250216000109.2606518-1-richard.henderson@linaro.org> References: <20250216000109.2606518-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::633; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x633.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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1739664309548019000 Content-Type: text/plain; charset="utf-8" From: Artyom Tarasenko Fake access to PCR Performance Control Register and PIC Performance Instrumentation Counter. Ignore writes in privileged mode, and return 0 on reads. This allows booting Tribblix, MilaX and v9os under Niagara target. Signed-off-by: Artyom Tarasenko Reviewed-by: Richard Henderson Signed-off-by: Richard Henderson Message-ID: <20250209211248.50383-1-atar4qemu@gmail.com> --- target/sparc/translate.c | 19 +++++++++++++++++++ target/sparc/insns.decode | 7 ++++++- 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/target/sparc/translate.c b/target/sparc/translate.c index 7e5c7351cb..bfe63649db 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -2882,6 +2882,14 @@ static TCGv do_rd_leon3_config(DisasContext *dc, TCG= v dst) =20 TRANS(RDASR17, ASR17, do_rd_special, true, a->rd, do_rd_leon3_config) =20 +static TCGv do_rdpic(DisasContext *dc, TCGv dst) +{ + return tcg_constant_tl(0); +} + +TRANS(RDPIC, HYPV, do_rd_special, supervisor(dc), a->rd, do_rdpic) + + static TCGv do_rdccr(DisasContext *dc, TCGv dst) { gen_helper_rdccr(dst, tcg_env); @@ -3315,6 +3323,17 @@ static void do_wrfprs(DisasContext *dc, TCGv src) =20 TRANS(WRFPRS, 64, do_wr_special, a, true, do_wrfprs) =20 +static bool do_priv_nop(DisasContext *dc, bool priv) +{ + if (!priv) { + return raise_priv(dc); + } + return advance_pc(dc); +} + +TRANS(WRPCR, HYPV, do_priv_nop, supervisor(dc)) +TRANS(WRPIC, HYPV, do_priv_nop, supervisor(dc)) + static void do_wrgsr(DisasContext *dc, TCGv src) { gen_trap_ifnofpu(dc); diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode index cfcdf6690e..9e39d23273 100644 --- a/target/sparc/insns.decode +++ b/target/sparc/insns.decode @@ -96,7 +96,10 @@ CALL 01 i:s30 RDTICK 10 rd:5 101000 00100 0 0000000000000 RDPC 10 rd:5 101000 00101 0 0000000000000 RDFPRS 10 rd:5 101000 00110 0 0000000000000 - RDASR17 10 rd:5 101000 10001 0 0000000000000 + { + RDASR17 10 rd:5 101000 10001 0 0000000000000 + RDPIC 10 rd:5 101000 10001 0 0000000000000 + } RDGSR 10 rd:5 101000 10011 0 0000000000000 RDSOFTINT 10 rd:5 101000 10110 0 0000000000000 RDTICK_CMPR 10 rd:5 101000 10111 0 0000000000000 @@ -114,6 +117,8 @@ CALL 01 i:s30 WRCCR 10 00010 110000 ..... . ............. @n_r_ri WRASI 10 00011 110000 ..... . ............. @n_r_ri WRFPRS 10 00110 110000 ..... . ............. @n_r_ri + WRPCR 10 10000 110000 01000 0 0000000000000 + WRPIC 10 10001 110000 01000 0 0000000000000 { WRGSR 10 10011 110000 ..... . ............. @n_r_ri WRPOWERDOWN 10 10011 110000 ..... . ............. @n_r_ri --=20 2.43.0