KVM: arm/arm64: Ensure vcpu target is unset on reset failure
authorAndrew Jones <drjones@redhat.com>
Thu, 4 Apr 2019 17:42:30 +0000 (19:42 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 25 May 2019 16:23:44 +0000 (18:23 +0200)
commita1251522a522be96a8050d444285b2b1c0f50b98
tree64c6572510ddba5146949e702d0b31eba113b6f6
parent36ae546a0046ebf3d9f38aceb70286ebf6127147
KVM: arm/arm64: Ensure vcpu target is unset on reset failure

[ Upstream commit 811328fc3222f7b55846de0cd0404339e2e1e6d7 ]

A failed KVM_ARM_VCPU_INIT should not set the vcpu target,
as the vcpu target is used by kvm_vcpu_initialized() to
determine if other vcpu ioctls may proceed. We need to set
the target before calling kvm_reset_vcpu(), but if that call
fails, we should then unset it and clear the feature bitmap
while we're at it.

Signed-off-by: Andrew Jones <drjones@redhat.com>
[maz: Simplified patch, completed commit message]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
virt/kvm/arm/arm.c