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xen-devel
Re: [Xen-devel] [PATCh][VT] do_block upon hlt instruction
On 21 Sep 2005, at 18:37, Nakajima, Jun wrote:
The major usage model of MONITOR/MWAIT is, the MONITOR instruction
specifies the address to watch, and MWAIT waits for any modification to
that address:
- The current VMX does not support VMExit upon the MONITOR instrucion,
so
we don't know which address the guest wants to minitor.
- even if it did, it's not efficient to check if modification is made
to that address range in shadow (so that we can unblock the guest
from
MWAIT).
Hmm yes, good point. :-)
-- Keir
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