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[v4,07/19] arm/arm64: KVM: dont rely on a valid GICH base address

Message ID 1415959683-26027-8-git-send-email-andre.przywara@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Andre Przywara Nov. 14, 2014, 10:07 a.m. UTC 
To check whether the vGIC was already initialized, we currently check
the GICH base address for not being NULL. Since with GICv3 we may
get along without this address, lets use the irqchip_in_kernel()
function to detect an already initialized vGIC.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
---
Changelog v3...v4:
- add Acked-by

 virt/kvm/arm/vgic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index e8003ca..4aa0b2f 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -2082,7 +2082,7 @@  int kvm_vgic_create(struct kvm *kvm, u32 type)
 
 	mutex_lock(&kvm->lock);
 
-	if (kvm->arch.vgic.vctrl_base) {
+	if (irqchip_in_kernel(kvm)) {
 		ret = -EEXIST;
 		goto out;
 	}