From: AP Xen <apxeng@gmail.com>
To: xen-devel@lists.xensource.com
Subject: Question about xc_translate_foreign_address()
Date: Tue, 24 May 2011 21:47:51 -0700 [thread overview]
Message-ID: <BANLkTinhjVHP+phtS45vNWn0=_kZmbMkGg@mail.gmail.com> (raw)
I have a question about xc_translate_foreign_address(). When this call
is issued for VCPU1 in a 2 VCPU guest where VCPU1 is in a paused state
and VCPU0 is active, there is a possibility that VCPU0 could change
the page tables that VCPU1 is using. There is a window where the
function could return incorrect information. Is this true or there is
something that prevents it from happening?
Thanks,
AP
next reply other threads:[~2011-05-25 4:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-25 4:47 AP Xen [this message]
2011-05-25 6:16 ` Question about xc_translate_foreign_address() Keir Fraser
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