From: Dushyant Bansal <cs5070214@cse.iitd.ac.in>
To: kvm-ppc@vger.kernel.org
Subject: Patching instructions with PV versions
Date: Sat, 26 Feb 2011 12:17:17 +0000 [thread overview]
Message-ID: <4D68EC7D.3040100@cse.iitd.ac.in> (raw)
Hi,
I understand that in order to improve performance by reducing vm
exits, kvm uses one shared page between kvm and guest. Now, guest can
map this page and access its fields using load, store instructions.
Then, it patches instructions with their paravirtualized versions
(inside kvm_use_magic_page). I have a few questions.
Is patching, by default enabled for every guest?
When is this patching done? Does it target only guest kernel code?
Thanks,
Dushyant
next reply other threads:[~2011-02-26 12:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-26 12:17 Dushyant Bansal [this message]
2011-02-28 14:13 ` Patching instructions with PV versions Sethi Varun-B16395
2011-03-02 16:46 ` Dushyant Bansal
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