[PATCH v2 1/8] AArch64: Reserve two 64k pages for GIC CPU interface
Andre Przywara
andre.przywara at arm.com
Fri Jun 5 01:37:46 PDT 2015
From: Marc Zyngier <marc.zyngier at arm.com>
On AArch64 system with a GICv2, the GICC range can be aligned
to the last 4k block of a 64k page, ending up straddling two
64k pages. In order not to conflict with the distributor mapping,
allocate two 64k pages to the CPU interface.
Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
arm/aarch64/include/kvm/kvm-arch.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arm/aarch64/include/kvm/kvm-arch.h b/arm/aarch64/include/kvm/kvm-arch.h
index 2f08a26..4925736 100644
--- a/arm/aarch64/include/kvm/kvm-arch.h
+++ b/arm/aarch64/include/kvm/kvm-arch.h
@@ -2,7 +2,7 @@
#define KVM__KVM_ARCH_H
#define ARM_GIC_DIST_SIZE 0x10000
-#define ARM_GIC_CPUI_SIZE 0x10000
+#define ARM_GIC_CPUI_SIZE 0x20000
#define ARM_KERN_OFFSET(kvm) ((kvm)->cfg.arch.aarch32_guest ? \
0x8000 : \
--
2.3.5
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