arm64: KVM: Disable virtual timer even if the guest is not using it

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commit c4cbba9fa0 upstream.

When running a guest with the architected timer disabled (with QEMU and
the kernel_irqchip=off option, for example), it is important to make
sure the timer gets turned off. Otherwise, the guest may try to
enable it anyway, leading to a screaming HW interrupt.

The fix is to unconditionally turn off the virtual timer on guest
exit.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Marc Zyngier 2015-09-16 16:18:59 +01:00 • committed by Luis Henriques

parent 9ecac394a8

commit c411802648

1 changed files with 3 additions and 2 deletions

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