Re: [Xen-devel] [RFC XEN PATCH 00/23] xen: beginning support for RISC-V

[Bobby Eshleman <bobbyeshleman@xxxxxxxxx>]

On Sat, Jan 25, 2020 at 05:11:18PM +0000, Andrew Cooper wrote:
> On 25/01/2020 03:26, Bobby Eshleman wrote:
> > On Fri, Jan 24, 2020 at 01:41:38PM +0000, Andrew Cooper wrote:
> >> Other areas where you can reduce the minimum build would be to put some
> >> defaults into the defconfig, such as disabling grant tables and mem
> >> access.  There are almost certainly others which will help, so have a
> >> search around menuconfig.
> > Taking note of these, I can definitely do that.
> 
> To fore-warn you, there probably will be more things like this which
> become apparent on further review.
> 
> While I don't expect you to do all the cleanup (some will almost
> certainly be quicker for others to do), I would like to take the
> opportunity to do the obvious bits of cleanup, given the rare
> opportunity of seeing the minimum viable set of things to make a new
> arch compile.

This sounds very reasonable.

> This looks to be the same as what we've chosen to do in x86, give or
> take a fencepost.
> 
> I'd recommend using L{3..0} for similarity with the spec (you surely
> don't want an off-by-one difference between code in Xen and the spec). 
> Whatever you end up choosing, put a description at the top of mm.h (or
> wherever appropriate) which briefly introduces the terminology in Xen,
> and cross references any differences with the spec.

Roger that.

Thanks again for the feedback.

-Bobby

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