From: Juergen Gross <jgross@suse.com>
To: Julien Grall <julien@xen.org>, Jan Beulich <jbeulich@suse.com>
Cc: Julien Grall <jgrall@amazon.com>,
Ian Jackson <iwj@xenproject.org>, Wei Liu <wl@xen.org>,
xen-devel@lists.xenproject.org,
Andrew Cooper <andrew.cooper3@citrix.com>,
Costin Lupu <costin.lupu@cs.pub.ro>
Subject: Re: [PATCH] stubdom: foreignmemory: Fix build after 0dbb4be739c5
Date: Tue, 13 Jul 2021 16:23:31 +0200 [thread overview]
Message-ID: <69c62b4c-b46f-9eab-8dfd-742c07423424@suse.com> (raw)
In-Reply-To: <d7cbedf3-bb67-1eda-70e2-d15c5649c0cd@xen.org>
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On 13.07.21 16:19, Julien Grall wrote:
> Hi Jan,
>
> On 13/07/2021 15:14, Jan Beulich wrote:
>>> And I don't think it should be named XC_PAGE_*, but rather XEN_PAGE_*.
>>
>> Even that doesn't seem right to me, at least in principle. There
>> shouldn't
>> be a build time setting when it may vary at runtime. IOW on Arm I think a
>> runtime query to the hypervisor would be needed instead.
>
> Yes, we want to be able to use the same userspace/OS without rebuilding
> to a specific hypervisor page size.
This define is used for accessing data of other domains. See the define
for XEN_PAGE_SIZE in xen/include/public/io/ring.h
So it should be a constant (minimal) page size for all hypervisors and
guests of an architecture.
Juergen
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next prev parent reply other threads:[~2021-07-13 14:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-13 9:20 [PATCH] stubdom: foreignmemory: Fix build after 0dbb4be739c5 Julien Grall
2021-07-13 9:25 ` Andrew Cooper
2021-07-13 9:27 ` Juergen Gross
2021-07-13 9:31 ` Julien Grall
2021-07-13 10:35 ` Juergen Gross
2021-07-13 9:35 ` Andrew Cooper
2021-07-13 11:21 ` Julien Grall
2021-07-13 11:23 ` Andrew Cooper
2021-07-13 11:53 ` Julien Grall
2021-07-13 12:39 ` Andrew Cooper
2021-07-13 13:00 ` Julien Grall
2021-07-13 13:46 ` Costin Lupu
2021-07-13 14:00 ` Juergen Gross
2021-07-13 14:14 ` Jan Beulich
2021-07-13 14:19 ` Julien Grall
2021-07-13 14:23 ` Jan Beulich
2021-07-13 14:33 ` Julien Grall
2021-07-13 15:52 ` Jan Beulich
2021-07-13 16:15 ` Julien Grall
2021-07-13 16:27 ` Jan Beulich
2021-07-13 16:33 ` Julien Grall
2021-07-14 6:11 ` Jan Beulich
2021-07-14 8:51 ` Julien Grall
2021-07-13 14:23 ` Juergen Gross [this message]
2021-07-13 14:28 ` Jan Beulich
2021-07-13 14:33 ` Juergen Gross
2021-07-13 14:38 ` Julien Grall
2021-07-13 15:09 ` Juergen Gross
2021-07-13 15:15 ` Julien Grall
2021-07-13 15:20 ` Juergen Gross
2021-07-16 18:28 ` Costin Lupu
2021-07-27 13:36 ` Andrew Cooper
2021-07-30 9:18 ` Costin Lupu
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