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Re: [Xen-ia64-devel] [PATCH 2/9] [P2M/VP step 1] xen: introduce P2M conversion
On Wed, Apr 26, 2006 at 05:16:21PM +0200, Tristan Gingold wrote:
> why does domain_page_flush purge TC entries ?
> These entries map virtual addr to mp addr. If you remove a page from the
> domain, the next access will be trapped.
I feared the race between ia64_do_page_fault() and removing page.
Smp isn't supported yet for now, it doesn't make sense yet.
Actually I'm not sure and I felt some consideration is necessary
so that I added the comment, "XXX SMP", there.
Presumably xenLinux doesn't issue such a racy operation,
but it is possible in theory.
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