arm/arm64: KVM: vgic: Check for !irqchip_in_kernel() when mapping resources

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commit c2f58514cf upstream.

Until b26e5fdac4 ("arm/arm64: KVM: introduce per-VM ops"),
kvm_vgic_map_resources() used to include a check on irqchip_in_kernel(),
and vgic_v2_map_resources() still has it.

But now vm_ops are not initialized until we call kvm_vgic_create().
Therefore kvm_vgic_map_resources() can being called without a VGIC,
and we die because vm_ops.map_resources is NULL.

Fixing this restores QEMU's kernel-irqchip=off option to a working state,
allowing to use GIC emulation in userspace.

Fixes: b26e5fdac4 ("arm/arm64: KVM: introduce per-VM ops")
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
[maz: reworked commit message]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Pavel Fedin 2015-08-05 11:53:57 +01:00 • committed by Greg Kroah-Hartman

parent 1feed3799f

commit 26550ff8f2

1 changed files with 1 additions and 1 deletions

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arch/arm/kvm/arm.c

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