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Date: Mon, 8 Jan 2018 15:24:19 +0100
From: Christoph Hellwig <hch@lst.de>
Message-ID: <20180108142419.GA10273@lst.de>
References: <1514940265-18093-1-git-send-email-mjc@sifive.com>
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In-Reply-To: <1514940265-18093-1-git-send-email-mjc@sifive.com>
Subject: Re: [Qemu-devel] [PATCH v1 00/21] RISC-V QEMU Port Submission v1
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To: Michael Clark <mjc@sifive.com>
Cc: qemu-devel@nongnu.org, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Sagar Karandikar <sagark@eecs.berkeley.edu>

> The RISC-V QEMU port implements the following specifications:
> - RISC-V Instruction Set Manual Volume I: User-Level ISA Version 2.2
> - RISC-V Instruction Set Manual Volume II: Privileged ISA Version 1.9.1
> - RISC-V Instruction Set Manual Volume II: Privileged ISA Version 1.10

What is the reason to support the legacy 1.9.1 privileg spec?  That
support seems to make a mess of quite a lot of the code, and has been
superseded quite a while ago.