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[77.179.165.240]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ab7010f4d2asm145444166b.75.2025.01.31.13.46.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Jan 2025 13:46:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1738359988; x=1738964788; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=66Bo2gEeNzLllo0jczJ1SMGFCw0a04TJcr0F/2HYI5s=; b=mVxtucuf7NRR93DQ93KE6YYoBnlpgom6sjYXOpEOk+1VLW75yd9ae8pvZgMp/O1KZD KBqCHpJKro2lPYO+0eWybQnH8+7iBngq77f5k0aQkhksOwUmZxgHl+zyAcZxMkIcmsSg aqVwib7+k9qijhluwVJP0tLkJQPR8472Q42MWasV+Zjyh4L/3RGjm9MxejcDAM2//rD7 w53HwDdA52E59ZEfas+er9KZIqK4brTeQ2zwyGBp1UlqQu/J2+t6pIq6f2mPvjYxOEcd BZsu4SxeuTyQNaIKczzDG80HaDaooyMqKht+dxG+P5guE8gMuu/GezmZgnwH22/75zY5 LKZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738359988; x=1738964788; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=66Bo2gEeNzLllo0jczJ1SMGFCw0a04TJcr0F/2HYI5s=; b=G2SEtEf7nayMzC8YC0RZEXDGG6jJax7XF6FD49i+XMuGu0vAE1tcT2V+7324WP2UN3 t133xsjGE1t6e0/pNGdxXMiKziQLYLLi4fRJChYmMsnI8D3+ocK287Y94wdAeXgqPM71 e7BvbQgllyisvYz3r+bMzSII5+7PAiiAMAiIIMpCAQmXc9iavyPNocUABKu4ZMf/l+ln YDMrZh8kV+CQtlwuOsyrpyMiRuyiazhuQ43/0t9PaUymMTXBzpFZWsikKzRDPkpjw4A+ eCooXwHj+ugmfKDFu6qern1dZ0kHr+sKvJNmlPnt767IY5kRCMLMn5gfneU2QBmiJSBg up8A== X-Gm-Message-State: AOJu0YztHEbuLkrTUEenpSl6iIDm9TcTPnwqBiXnkKG9vLZtWtu4tubG VKQmihEYx2Zl1DIFfPYgqSlvi7E5ATeYTdjNw54I0nMOiZ7SIpNDc8jp4hPz X-Gm-Gg: ASbGnctP6IQ8bMTY2b22DMA1V1F2NjouBVOVSyJbFWrR5zY3dA12V0z7m8HJIx9fpqx zoV2MG6X8wUQowBTWzF5KpAGQY6c9oFselMsVp5MWNkWw9B+WCPhCDs4sfJddfsBeOEY1zZ+lmY P2HIjkC5q/6Gpy2VSueT+TqRplo8Zq+QDX5xYZtqSj2DB7ArvFbRtX3uXjslQKxeU3XmRTOpYVu cqNkaKiVpHRssDbF6bfHpM8oasxTe/168GirIISLrMiA6OM8vsItL/37WR3pxPXnShcV4/jlBVO kUsFHZyg2Yy1V9GpAqdNoDdarNcRf87rqQYXexmkfsCy5i0Pix03cvBu7Y8HBqtDTiyYNtSJbNd 1La6RGdticw== X-Google-Smtp-Source: AGHT+IHHeAip7CzkWDE7Lz/Aj8Czsh2z1RQ0uelORzqWc+5RrV4p7TZlhJ/bAEk1AXYWorEHSqguJQ== X-Received: by 2002:a17:907:2ce3:b0:aa6:6a52:970 with SMTP id a640c23a62f3a-ab6cfcb3b92mr1456491966b.1.1738359987612; Fri, 31 Jan 2025 13:46:27 -0800 (PST) From: Artyom Tarasenko To: qemu-devel@nongnu.org Cc: Artyom Tarasenko , Richard Henderson , Mark Cave-Ayland Subject: [PATCH] target/sparc: fake UltraSPARC T1 PCR and PIC registers Date: Fri, 31 Jan 2025 22:44:15 +0100 Message-ID: <20250131214528.117846-1-atar4qemu@gmail.com> X-Mailer: git-send-email 2.43.5 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::634; envelope-from=atar4qemu@gmail.com; helo=mail-ej1-x634.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: 1738360019227019000 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 --- target/sparc/insns.decode | 7 ++++++- target/sparc/translate.c | 20 ++++++++++++++++++++ 2 files changed, 26 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..285c9b0a59 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -2882,6 +2882,15 @@ 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) +{ + tcg_gen_movi_tl(dst, 0UL); + return dst; +} + +TRANS(RDPIC, HYPV, do_rd_special, true, a->rd, do_rdpic) + + static TCGv do_rdccr(DisasContext *dc, TCGv dst) { gen_helper_rdccr(dst, tcg_env); @@ -3315,6 +3324,17 @@ 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