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authorMarc Zyngier <maz@kernel.org>2020-04-09 13:05:26 +0100
committerMarc Zyngier <maz@kernel.org>2020-04-23 16:26:31 +0100
commitba1ed9e17b581c9a204ec1d72d40472dd8557edd (patch)
treea0f2162a4222f19fbea3d2104042aa8910190aa7 /LICENSES
parent41ee52ecbcdc98eb2a03241923b1a7d46f476bb3 (diff)
KVM: arm: vgic-v2: Only use the virtual state when userspace accesses pending bits
There is no point in accessing the HW when writing to any of the ISPENDR/ICPENDR registers from userspace, as only the guest should be allowed to change the HW state. Introduce new userspace-specific accessors that deal solely with the virtual state. Note that the API differs from that of GICv3, where userspace exclusively uses ISPENDR to set the state. Too bad we can't reuse it. Fixes: 82e40f558de56 ("KVM: arm/arm64: vgic-v2: Handle SGI bits in GICD_I{S,C}PENDR0 as WI") Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
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