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KVM: Don't allow lmsw to clear cr0.pe
authorAvi Kivity <avi@redhat.com>
Tue, 11 May 2010 21:28:44 +0000 (00:28 +0300)
committerAvi Kivity <avi@redhat.com>
Wed, 19 May 2010 08:41:08 +0000 (11:41 +0300)
The current lmsw implementation allows the guest to clear cr0.pe, contrary
to the manual, which breaks EMM386.EXE.

Fix by ORing the old cr0.pe with lmsw's operand.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

No differences found
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