KVM: Workaround vmx inability to virtualize the reset state

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The reset state has cs.selector == 0xf000 and cs.base == 0xffff0000,
which aren't compatible with vm86 mode, which is used for real mode
virtualization.

When we create a vcpu, we set cs.base to 0xf0000, but if we get there by
way of a reset, the values are inconsistent and vmx refuses to enter
guest mode.

Workaround by detecting the state and munging it appropriately.

Signed-off-by: Avi Kivity <avi@qumranet.com>

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This commit is contained in:

Avi Kivity 2007-03-20 18:40:40 +02:00

parent aac012245a

commit 8cb5b03332

1 changed files with 2 additions and 0 deletions

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drivers/kvm/vmx.c

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