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KVM on ARM currently masks the timer interrupt on the timer side when delivering an interrupt to the guest. This itself is a workaround for an issue where the interrupt is reraised and trapped by the host as soon as the guest is entered, resulting in the guest being starved. Work around this by calling ArmGenericTimerEnable () after servicing each interrupt. The virtual version of ArmGenericTimerCounterLib will then make sure to unmask the interrupt again. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-By: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16144 6f19259b-4bc3-4df7-8a09-765794883524