* floating point state? @ 2007-03-15 4:02 Hollis Blanchard 2007-03-15 4:19 ` Hollis Blanchard 2007-03-15 8:24 ` Avi Kivity 0 siblings, 2 replies; 3+ messages in thread From: Hollis Blanchard @ 2007-03-15 4:02 UTC (permalink / raw) To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f This may just be my unfamiliarity with x86, but I can't see where the floating point state is being saved, and it doesn't seem to be part of the KVM_GET_REGS or KVM_GET_SREGS interfaces. It's being saved and restored fine, but since it's not part of the userspace interface I guess that would mean FP state is inaccessible to host tools and will be lost across save/resume? I don't see where MMX state is being handled at all. Does that work? -Hollis ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: floating point state? 2007-03-15 4:02 floating point state? Hollis Blanchard @ 2007-03-15 4:19 ` Hollis Blanchard 2007-03-15 8:24 ` Avi Kivity 1 sibling, 0 replies; 3+ messages in thread From: Hollis Blanchard @ 2007-03-15 4:19 UTC (permalink / raw) To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f On Wed, 2007-03-14 at 23:02 -0500, Hollis Blanchard wrote: > > I don't see where MMX state is being handled at all. Does that work? Oops, forgot that MMX uses the floating point registers. I was just trying to think of any other "extra" register state that might have been overlooked. -Hollis ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: floating point state? 2007-03-15 4:02 floating point state? Hollis Blanchard 2007-03-15 4:19 ` Hollis Blanchard @ 2007-03-15 8:24 ` Avi Kivity 1 sibling, 0 replies; 3+ messages in thread From: Avi Kivity @ 2007-03-15 8:24 UTC (permalink / raw) To: Hollis Blanchard; +Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f Hollis Blanchard wrote: > This may just be my unfamiliarity with x86, but I can't see where the > floating point state is being saved, and it doesn't seem to be part of > the KVM_GET_REGS or KVM_GET_SREGS interfaces. > > Oops. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2007-03-15 8:24 UTC | newest] Thread overview: 3+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2007-03-15 4:02 floating point state? Hollis Blanchard 2007-03-15 4:19 ` Hollis Blanchard 2007-03-15 8:24 ` Avi Kivity
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