* 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
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^ 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
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^ 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.
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2007-03-15 4:02 floating point state? Hollis Blanchard
2007-03-15 4:19 ` Hollis Blanchard
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