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linux/virt/kvm/arm
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Marc Zyngier da75b45af7 KVM: arm/arm64: vgic: Avoid injecting reserved IRQ numbers 
commit 4839ddc27b upstream.

Commit fd1d0ddf2a (KVM: arm/arm64: check IRQ number on userland
injection) rightly limited the range of interrupts userspace can
inject in a guest, but failed to consider the (unlikely) case where
a guest is configured with 1024 interrupts.

In this case, interrupts ranging from 1020 to 1023 are unuseable,
as they have a special meaning for the GIC CPU interface.

Make sure that these number cannot be used as an IRQ. Also delete
a redundant (and similarily buggy) check in kvm_set_irq.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2015-07-10 09:49:37 -07:00
..
arch_timer.c arm/arm64: KVM: Fix migration race in the arch timer 2015-03-14 13:48:00 +01:00
vgic-v2-emul.c KVM: arm/arm64: rework MMIO abort handling to use KVM MMIO bus 2015-03-30 17:07:19 +01:00
vgic-v2.c arm/arm64: KVM: Keep elrsr/aisr in sync with software model 2015-03-14 13:42:07 +01:00
vgic-v3-emul.c KVM: arm/arm64: rework MMIO abort handling to use KVM MMIO bus 2015-03-30 17:07:19 +01:00
vgic-v3.c arm/arm64: KVM: Keep elrsr/aisr in sync with software model 2015-03-14 13:42:07 +01:00
vgic.c KVM: arm/arm64: vgic: Avoid injecting reserved IRQ numbers 2015-07-10 09:49:37 -07:00
vgic.h KVM: arm/arm64: rework MMIO abort handling to use KVM MMIO bus 2015-03-30 17:07:19 +01:00