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| author | Vladimir Murzin <vladimir.murzin@arm.com> | 2016-09-12 17:49:24 +0300 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-09-22 14:22:21 +0300 |
| commit | acda5430bee4621f218391d0bcfbe4412adb3554 (patch) | |
| tree | d279ce897d2666ca9481963dca9fc9aede6e85dd /arch/arm/include/asm/kvm_asm.h | |
| parent | a078bedf17c2e43819fea54bdfd5793845142e3a (diff) | |
| download | linux-acda5430bee4621f218391d0bcfbe4412adb3554.tar.xz | |
ARM: KVM: Support vgic-v3
This patch allows to build and use vgic-v3 in 32-bit mode.
Unfortunately, it can not be split in several steps without extra
stubs to keep patches independent and bisectable. For instance,
virt/kvm/arm/vgic/vgic-v3.c uses function from vgic-v3-sr.c, handling
access to GICv3 cpu interface from the guest requires vgic_v3.vgic_sre
to be already defined.
It is how support has been done:
* handle SGI requests from the guest
* report configured SRE on access to GICv3 cpu interface from the guest
* required vgic-v3 macros are provided via uapi.h
* static keys are used to select GIC backend
* to make vgic-v3 build KVM_ARM_VGIC_V3 guard is removed along with
the static inlines
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/include/asm/kvm_asm.h')
| -rw-r--r-- | arch/arm/include/asm/kvm_asm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h index 05e47faf96a1..d7ea6bcb29bf 100644 --- a/arch/arm/include/asm/kvm_asm.h +++ b/arch/arm/include/asm/kvm_asm.h @@ -72,6 +72,9 @@ extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu); extern void __init_stage2_translation(void); extern void __kvm_hyp_reset(unsigned long); + +extern u64 __vgic_v3_get_ich_vtr_el2(void); +extern void __vgic_v3_init_lrs(void); #endif #endif /* __ARM_KVM_ASM_H__ */ |