From patchwork Thu Aug 29 23:34:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Deepak Gupta X-Patchwork-Id: 13784020 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 CE974C87FCB for ; Thu, 29 Aug 2024 23:36:20 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sjofG-0003sr-UN; Thu, 29 Aug 2024 19:34:55 -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 1sjofE-0003lm-MN for qemu-devel@nongnu.org; Thu, 29 Aug 2024 19:34:52 -0400 Received: from mail-pg1-x52e.google.com ([2607:f8b0:4864:20::52e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sjoez-00039C-Pn for qemu-devel@nongnu.org; Thu, 29 Aug 2024 19:34:52 -0400 Received: by mail-pg1-x52e.google.com with SMTP id 41be03b00d2f7-7cf5e179b68so797417a12.1 for ; Thu, 29 Aug 2024 16:34:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1724974476; x=1725579276; 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=zfvLnj6XNfSIT8sSl0+fnX4A6Nm3Jxdidu50F7PUqy8=; b=OlS6SvxV7mZDdbjhVB2sGMRBSNsHrmaHLAWXbe+/sVE+a43hEZBGhTtr0/Lu1soybc BSXuV03S6otKoQeorgbGeGmauZFbilzCVosQbdq1lMevsd7YcZs/UG8SyXuqf+hrKRjE GwwvVHln6CNSwgIWzg7QUR2dkTpklY0k5UtMwU1VZ5j4ehFtumrmW4D5c3WZ5kiV9Sr1 de7ebs0eioDesPO+894lIFR0dSBRBt+qCIccbXZeFZ2ymMr8Idi+9vMcypRccoUWAXnX W8cWAsOfez+zrOwG+ahzYXF9yCOErmnUrvg5vVSOnR37bYf1prarDr2+/1RFeHZR1wjR rksA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724974476; x=1725579276; 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=zfvLnj6XNfSIT8sSl0+fnX4A6Nm3Jxdidu50F7PUqy8=; b=SJmb95QubVf29TybOfyeDnvrS3qYSCZsZg7FYWcacBrholH3IPhAAp1dJCF977HVQp RhO3J1t68G5YmYj6ybU8QzpOy6moF0Rw8yKO9V//54p2CG4F3STaKK4HiYR8flezYdWF m9bKD/TGOKxgKcDtZvqSiCm+LQ8J/MXuPsdOs9nNjROwbL2IEwQ+8L7h4Lf9IYScHMWa yxiC0e79VTvfFZfZd9xdrThTu3O8nf1ifoZBKhVRX+Liw8l0a9qBDW3wD6lFxqmNBKlB Dynb/UKMDZ4tE9V098c7JU8Hpz2ctnjLhMCBIzEDlpIVcrBVjflwDfh8qR/e+2EKwSXb pEqg== X-Forwarded-Encrypted: i=1; AJvYcCWbFjI+vKVzttxCvGd47J0v85yJZrFrq+fcysD/RmBQhfq0ltbYRLRQBeRowcZOhCln/TGQG9vkFuJn@nongnu.org X-Gm-Message-State: AOJu0Yw0RyPIbSC5aDWMsxnBGHE03i7fGj4V01E4eBGYaV0hxEF/YzhG l3SVuDVJpRN0k4nZ3zmJqoh3d6y1wgatBdHvEjeWlCPTI+IiEV5+f7JcuRizBtc= X-Google-Smtp-Source: AGHT+IHN8P0/jUbIUm1VDG9O5kcp1SZ4HjYSM0a34Vkrcak0AFrSppIuV5zjncN2BEcQuM5/3bGAmg== X-Received: by 2002:a17:90a:4748:b0:2c9:35a6:e185 with SMTP id 98e67ed59e1d1-2d856889a6emr5868768a91.0.1724974476199; Thu, 29 Aug 2024 16:34:36 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2d85b13df55sm2331074a91.27.2024.08.29.16.34.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Aug 2024 16:34:35 -0700 (PDT) From: Deepak Gupta To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: palmer@dabbelt.com, Alistair.Francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jim.shu@sifive.com, andy.chiu@sifive.com, kito.cheng@sifive.com, Deepak Gupta , Richard Henderson , Alistair Francis Subject: [PATCH v12 05/20] target/riscv: additional code information for sw check Date: Thu, 29 Aug 2024 16:34:09 -0700 Message-ID: <20240829233425.1005029-6-debug@rivosinc.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240829233425.1005029-1-debug@rivosinc.com> References: <20240829233425.1005029-1-debug@rivosinc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::52e; envelope-from=debug@rivosinc.com; helo=mail-pg1-x52e.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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 sw check exception support was recently added. This patch further augments sw check exception by providing support for additional code which is provided in *tval. Adds `sw_check_code` field in cpuarchstate. Whenever sw check exception is raised *tval gets the value deposited in `sw_check_code`. Signed-off-by: Deepak Gupta Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/cpu.h | 2 ++ target/riscv/cpu_helper.c | 3 +++ target/riscv/csr.c | 1 + 3 files changed, 6 insertions(+) diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index a7c970e70c..a0f14c759e 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -224,6 +224,8 @@ struct CPUArchState { /* elp state for zicfilp extension */ bool elp; + /* sw check code for sw check exception */ + target_ulong sw_check_code; #ifdef CONFIG_USER_ONLY uint32_t elf_flags; #endif diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 5f38969aa6..fffd865cb4 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -1760,6 +1760,9 @@ void riscv_cpu_do_interrupt(CPUState *cs) cs->watchpoint_hit = NULL; } break; + case RISCV_EXCP_SW_CHECK: + tval = env->sw_check_code; + break; default: break; } diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 5771a14848..a5a969a377 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -1179,6 +1179,7 @@ static const uint64_t all_ints = M_MODE_INTERRUPTS | S_MODE_INTERRUPTS | (1ULL << (RISCV_EXCP_INST_PAGE_FAULT)) | \ (1ULL << (RISCV_EXCP_LOAD_PAGE_FAULT)) | \ (1ULL << (RISCV_EXCP_STORE_PAGE_FAULT)) | \ + (1ULL << (RISCV_EXCP_SW_CHECK)) | \ (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) | \ (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | \ (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | \