KVM: SVM: Move fs/gs/ldt save/restore to heavyweight exit path

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ldt is never used in the kernel context; same goes for fs (x86_64) and gs
(i386).  So save/restore them in the heavyweight exit path instead
of the lightweight path.

By itself, this doesn't buy us much, but it paves the way for moving vmload
and vmsave to the heavyweight exit path, since they modify the same registers.

[jan: fix copy/pase mistake on i386]

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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This commit is contained in:

Avi Kivity 2010-10-21 12:20:33 +02:00

parent afe9e66f82

commit dacccfdd6b

1 changed files with 21 additions and 14 deletions

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arch/x86/kvm/svm.c

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