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KVM: arm/arm64: vgic-new: Add GICv3 world switch backend

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As the GICv3 virtual interface registers differ from their GICv2
siblings, we need different handlers for processing maintenance
interrupts and reading/writing to the LRs.
Implement the respective handler functions and connect them to
existing code to be called if the host is using a GICv3.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Marc Zyngier
2015-11-30 13:09:53 +00:00
committed by Christoffer Dall
parent 140b086dd1
commit 59529f69f5
4 changed files with 212 additions and 5 deletions
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include/linux/irqchip/arm-gic-v3.h
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@@ -275,6 +275,7 @@
#define ICH_LR_ACTIVE_BIT (1ULL << 63)
#define ICH_LR_PHYS_ID_SHIFT 32
#define ICH_LR_PHYS_ID_MASK (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
#define ICH_LR_PRIORITY_SHIFT 48
/* These are for GICv2 emulation only */
#define GICH_LR_VIRTUALID (0x3ffUL << 0)