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Re: [PATCH v3 3/4] RISC-V: support vector extension csr

From: Richard Henderson
Subject: Re: [PATCH v3 3/4] RISC-V: support vector extension csr
Date: Sat, 4 Jan 2020 10:14:03 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2

On 1/3/20 2:33 PM, LIU Zhiwei wrote:
> Until v0.7.1 specification, vector status is still not defined for
> mstatus.

Using "until" imples that v0.7.1 *does* define the vector status.

Better said as "The v0.7.1 specification does not define vector status within
mstatus.  A future revision will define the privileged portion of the vector

Although lack of a privileged spec does suggest to me that perhaps we ought to
support the vector extension only for CONFIG_USER_ONLY for now.


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