From nobody Tue Apr 8 12:54:40 2025 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=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1739135665; cv=none; d=zohomail.com; s=zohoarc; b=F3hFYfLqtlqCU4/5l2YPI5yBoRTCXYcviAvoQMsuI01bu+yQam9R6k89dikdr4GetQW/iepv40zFnxNHGA+Z0CkLQeS56tTUWCeCgDKz5KRl49jznxy1oKegRaSAbqPc+m9KLe4n/DcLvtm5BhXh0G/JTNkxFJc1SjDZeLJVrkE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1739135665; 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=4mxNmu2xFcIw7eeu6rCjpzywjGDaWVjP/XkaZ/Tsld0=; b=hT5ApPlkSelHXKMoDXw5NjuDchWmJX1SNeqrFi6p0inejycdkmQU54uiRxH2zLonJ1Ftx+BuIv+ANztr1FviR5t/y/LwjT7P+dLsY2EAxP78EGo8XZTQYe8NRuYjpGKy1pU32Vfc7xCXJMVzCQZLoIyRcL2Jw50zecCB4e1IOSE= 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 1739135665668500.6360019097666; Sun, 9 Feb 2025 13:14:25 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1thEcS-0007J5-VN; Sun, 09 Feb 2025 16:13:37 -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 1thEcQ-0007Iu-LO for qemu-devel@nongnu.org; Sun, 09 Feb 2025 16:13:34 -0500 Received: from mail-wm1-x331.google.com ([2a00:1450:4864:20::331]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1thEcP-0003NN-5U for qemu-devel@nongnu.org; Sun, 09 Feb 2025 16:13:34 -0500 Received: by mail-wm1-x331.google.com with SMTP id 5b1f17b1804b1-4361815b96cso24436955e9.1 for ; Sun, 09 Feb 2025 13:13:32 -0800 (PST) Received: from localhost.localdomain (dynamic-077-012-237-182.77.12.pool.telefonica.de. [77.12.237.182]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4390d966faasm160357045e9.23.2025.02.09.13.13.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 09 Feb 2025 13:13:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1739135611; x=1739740411; 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=4mxNmu2xFcIw7eeu6rCjpzywjGDaWVjP/XkaZ/Tsld0=; b=RAdVa/buKD7PqvZZPJXkC6FlD3b/1mnkuz9Gwwh79lf9X01BVa7LHMwcudULEXMuIx PXk5QVayI/IG7SpU+kMOgDLr3rb8yToOX+s8IweTguzN3Uz72dAX8DrJUSfmIxSfKHq0 3Mv3OWtD8se9cETV7fIuP2ixsH7oppOqw7iDW16CTf7zmCQoe8tiaMeDH76fwIrsWNMm jb3j9a4Zy/3+ZvRiUQIOFcm/K56fG4F8+1Vda/bSOL5z3ccv+yqcD0TtGMjQ+F1otEGw N6Da9z/bCqOp1k3m+12q+Xi9lI7efxUv6GnA5A/RrQ7cdzwvmOiywU7Gx17mYE8psg+V mI7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739135611; x=1739740411; 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=4mxNmu2xFcIw7eeu6rCjpzywjGDaWVjP/XkaZ/Tsld0=; b=bUnYtWmaADIuh6MxDqQ0yJ3t0UzNhPhRd0SxekMOweUBnuxV+9O9yuC1WC6JbgdrMP CGp4zvg02ptchMFo3zatJIz3E2k71pG6BpPGNNoXfWcau+v6Y5cm3uGZNe0CKOV9AlZF 30tK3zoStD7jM4R0ib9ZvlKmVPYR0d6rbds3s4kNXE0XIAsYINFA7TkZCEp6njZdpSx6 mT5xxp8yLBiyPP0jAu0nz+UAZSt60TopxW823K4pbWcfqQ02Z922lHpLfHciVKg4eE+t CmgszOiUO5MFeHKgnqoqcFw+CFX06m4t/UNrTkKDrIkS1c4Y1GEkot/eZq5geMdXFDHK E4tQ== X-Gm-Message-State: AOJu0Yzm8KQ5HKMt+KjnlC+Sx/wxeePZLSbjIWGP3KkN8ko9p2vBkR3s ez0AEA6/EBr5Q81636n2ykMv98r4rVoQ42CZxiGZonz9D2sp5roAE0rcGAQO X-Gm-Gg: ASbGnctMn8UUlYQJX5pSMbgNJLc7EaBBNhuTsLo6YI8q1pMuz/dqTR9vPL7m/rg3Zr1 RtFlhcqrRzYziMrqDjygeHtzTYirby31UBB9pl/N05bnXy3k5YqgIShexHSmZyCakoSeS2MhAjV b27QDyGftlNaYm4avqQxkOb/k5Hcb5NAbRBSI4Fg37q/IUS49WieLErXcz5tAEAe4WCvo0of5kY 1vdiaywAXp7mOTylYXwWszOsHuLwoRG+UYy9WzycwGLI/xPmlg2AIsxFooTVGVVfd7nzIzlwgTM CLbGtAx9VmwMBkUc50vFZHXhb3VmLqVXuWLDAnZsuNHHOt+/2A5+WvSTAu09r2Fg7SL9vtmMz3B cPuXDbu0= X-Google-Smtp-Source: AGHT+IH+z5ZwmEYNze9Qd6b+uGIRoid1lrlidhxGorHbJ7cwRb/5G6DL4OPW8/NCm9zDF93/VcnhGQ== X-Received: by 2002:a05:600c:4754:b0:434:9e46:5bc with SMTP id 5b1f17b1804b1-4392498ac55mr97841765e9.10.1739135610774; Sun, 09 Feb 2025 13:13:30 -0800 (PST) From: Artyom Tarasenko To: qemu-devel@nongnu.org Cc: Artyom Tarasenko , Richard Henderson , Mark Cave-Ayland Subject: [PATCH v2] target/sparc: fake UltraSPARC T1 PCR and PIC registers Date: Sun, 9 Feb 2025 22:12:48 +0100 Message-ID: <20250209211248.50383-1-atar4qemu@gmail.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <99ea71e8-b978-41c6-8ba5-f056935ea39e@linaro.org> References: <99ea71e8-b978-41c6-8ba5-f056935ea39e@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=2a00:1450:4864:20::331; envelope-from=atar4qemu@gmail.com; helo=mail-wm1-x331.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1739135667064019100 Content-Type: text/plain; charset="utf-8" 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 --- target/sparc/insns.decode | 7 ++++++- target/sparc/translate.c | 19 +++++++++++++++++++ 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode index 989c20b44a..504147563c 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 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); --=20 2.43.5