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[108.26.224.24]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4a435a8435esm112334771cf.78.2025.06.05.09.18.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jun 2025 09:18:07 -0700 (PDT) From: Jesse Taube To: kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Cc: Atish Patra , Anup Patel , Palmer Dabbelt , =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= , Himanshu Chauhan , Charlie Jenkins , Jesse Taube , Andrew Jones Subject: [kvm-unit-tests PATCH v3 1/2] riscv: Add RV_INSN_LEN to processor.h Date: Thu, 5 Jun 2025 09:18:05 -0700 Message-ID: <20250605161806.1206850-1-jesse@rivosinc.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250605_091809_712542_EB278711 X-CRM114-Status: UNSURE ( 7.92 ) X-CRM114-Notice: Please train this message. X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+kvm-riscv=archiver.kernel.org@lists.infradead.org When handeling traps and faults it is offten necessary to know the size of the instruction at epc. Add RV_INSN_LEN to calculate the instruction size. Signed-off-by: Jesse Taube --- lib/riscv/asm/processor.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/riscv/asm/processor.h b/lib/riscv/asm/processor.h index 40104272..631ce226 100644 --- a/lib/riscv/asm/processor.h +++ b/lib/riscv/asm/processor.h @@ -7,6 +7,8 @@ #define EXCEPTION_CAUSE_MAX 24 #define INTERRUPT_CAUSE_MAX 16 +#define RV_INSN_LEN(insn) ((((insn) & 0x3) < 0x3) ? 2 : 4) + typedef void (*exception_fn)(struct pt_regs *); struct thread_info { -- 2.43.0 -- kvm-riscv mailing list kvm-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kvm-riscv From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f181.google.com (mail-qt1-f181.google.com [209.85.160.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2EF5F1DA60F for ; Thu, 5 Jun 2025 16:18:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749140291; cv=none; b=FPwj9vh0Dz9n6KKm1FiZUWx/UAWNSTZusX3/3c0eSkp8CNgALWsPeeHw3WvHmEti26OdEj7q4iGbmM76B15X/U6WJ8c19Dglx9+Smuy2Fvekohf8W0rhqXSNj3fFcvWOR/fyftLkHA06oOeQLUUOUxVwiwMtxF7XO4tyXWCIL+g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749140291; c=relaxed/simple; bh=R17KALMsjjzAwfh5723HN1SLkUQzWPSnAKPnTmEEdPo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cZ6VoEnYLoQkvAtFzFnz0mb7ftnNBM955FJ6OYmtfqEJZlw2lU/7SEzgzCTQdcPLP6OdLsKrfHQwuT5IPkONneBoQwthyW14VYotxYypPKK0/S5PoeJgxICnzEiHi9OkGJ+OzPAu5bdQbO7jTCtAJS9yKe1pn9knIXXR4I7CxWU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com; spf=pass smtp.mailfrom=rivosinc.com; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b=BxfudR4A; arc=none smtp.client-ip=209.85.160.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b="BxfudR4A" Received: by mail-qt1-f181.google.com with SMTP id d75a77b69052e-48d71b77cc0so13475591cf.1 for ; Thu, 05 Jun 2025 09:18:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1749140288; x=1749745088; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=6bcQy7gPSkBnevmxMbb5LF8ShmOv1KLO/XGyCnpQumw=; b=BxfudR4ATzM5OnZQvEkDwv854ZhgS7hYRXPfjR8W9tblzpXaTfvgMGA1aIr50cn00B EN86fwYmjoYuR/SPE45sYzW6QjY+jGsh1ruzLA0aZDhlwek6g/pWem8mTWDusIfbiT7n 94zk/UduqfCQETkvSuOuVbER14TmggYvsf1f9cng3yR18AXpLU0AwH+PFd1ke7mdGfzL E4wPNCOeHZcgITFwmRI96+E59zDIg16zuRba/OTlQjxVhcNctwc5t8JcKfbWDxDjGSZe WnWAB1hdRq2lv6zuKH1muK8sl1wS8REqOyDS69+2GAOaN1T8I5JF6VstG+GGNPd5SSAG +kow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749140288; x=1749745088; 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=6bcQy7gPSkBnevmxMbb5LF8ShmOv1KLO/XGyCnpQumw=; b=WiBtSRu6vbuJiPDE/vUfeCYTizwcJoTHDnHyR1BXzMr8FN9ADo1CuGKpSUp5rDJOsW p+9AdIkmEqP6oxwwmThmI31OkL6d3f1/aJcr5PkyPQ9vPs63yFyjxOW5XLcPOmEhYL+v H5iD8T70cYK5nX7CTS9mMwF8urLxxftehYnIr/aZueD1UtyVg02KyFfXd5gBciasq4pe /JjJHrL3JsIRHBQ6b03A5lNSeAgH9et/0l7kN0MgkbFvgoWHv82vPkBwoEl5hjl4t3TR zEAPacqBBzkUVIb00I7KyjqVQ+V8FmlxEACy6W6CIDyQFiBX+vYHv8CyWALkc7FdVx3M bhPQ== X-Gm-Message-State: AOJu0YxKiZzoBBT6K/gr8+kuEuuouqXFXsCusUtjn6xEFDVIlVBJ//yo hMSEqT3CywJRzYe4Ebqp+pdrC+JBLxkeCNj/LfaubX4tupI0IXOPNUhbKm/oHx/+0B9t8t3Bbd+ DWbYP X-Gm-Gg: ASbGncugaRlju6MeaYwV3itkHo8u38rMywjxhh++99uKswH7rvgOuHWWj883uCNOFfL H2Ev53dp+3QhQFcn48u1D88IOMRAQtO/9lzWt4DL6N6bYihb075uMNM6kuKaM51pdVfUTEzexdJ L0ouS5YRa1pF8KsvNtZe38EOjta+At5PouIJf5rScjYhS0H4x4eqvQKo3ZjgqVLjW0PqVrOnV9X 18YeGmz/CcmFoL1kJRolwEQk1JWR4YbkAzJfQJBz/njsr1AWFuedkWEIZzp9SdXg3AG7jBt8qD0 l61rC7UYGqp4S0HsIK1h2TWnJCl9ffzJu45hV7u5zTsOu8tK7K005QpIQH7G3tmYQlOm8M87y2E WUO2Rc4KQJafU0FdydWQI2+LYFd/ogVty8ICd9A== X-Google-Smtp-Source: AGHT+IGagtTXHkeQ0OodJZSC8xG5sdbF/6dv3bvtybwawwSAoeJrgu7/hP6ErOxbMaXTuJabouxgmg== X-Received: by 2002:a05:622a:551b:b0:4a4:22a1:dab8 with SMTP id d75a77b69052e-4a5b9e0048fmr6122691cf.11.1749140287803; Thu, 05 Jun 2025 09:18:07 -0700 (PDT) Received: from jesse-lt.ba.rivosinc.com (pool-108-26-224-24.bstnma.fios.verizon.net. [108.26.224.24]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4a435a8435esm112334771cf.78.2025.06.05.09.18.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jun 2025 09:18:07 -0700 (PDT) From: Jesse Taube To: kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Cc: Atish Patra , Anup Patel , Palmer Dabbelt , =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= , Himanshu Chauhan , Charlie Jenkins , Jesse Taube , Andrew Jones Subject: [kvm-unit-tests PATCH v3 1/2] riscv: Add RV_INSN_LEN to processor.h Date: Thu, 5 Jun 2025 09:18:05 -0700 Message-ID: <20250605161806.1206850-1-jesse@rivosinc.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When handeling traps and faults it is offten necessary to know the size of the instruction at epc. Add RV_INSN_LEN to calculate the instruction size. Signed-off-by: Jesse Taube --- lib/riscv/asm/processor.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/riscv/asm/processor.h b/lib/riscv/asm/processor.h index 40104272..631ce226 100644 --- a/lib/riscv/asm/processor.h +++ b/lib/riscv/asm/processor.h @@ -7,6 +7,8 @@ #define EXCEPTION_CAUSE_MAX 24 #define INTERRUPT_CAUSE_MAX 16 +#define RV_INSN_LEN(insn) ((((insn) & 0x3) < 0x3) ? 2 : 4) + typedef void (*exception_fn)(struct pt_regs *); struct thread_info { -- 2.43.0