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KVM: VMX: fix halt emulation while emulating invalid guest sate
commit 8d76c49 upstream. The invalid guest state emulation loop does not check halt_request which causes 100% cpu loop while guest is in halt and in invalid state, but more serious issue is that this leaves halt_request set, so random instruction emulated by vm86 #GP exit can be interpreted as halt which causes guest hang. Fix both problems by handling halt_request in emulation loop. Reported-by: Tomas Papan <[email protected]> Tested-by: Tomas Papan <[email protected]> Reviewed-by: Paolo Bonzini <[email protected]> Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Kamal Mostafa <[email protected]>
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