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| author | Eric Auger <eric.auger@linaro.org> | 2015-12-21 15:04:42 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-05-20 15:40:07 +0200 |
| commit | b0442ee227e826afc4df16cdfb8bd6eef6a8f425 (patch) | |
| tree | a04cc19ffafb2067309337f6dba14032e34da403 /virt/kvm/arm/vgic/vgic.h | |
| parent | KVM: arm/arm64: vgic-new: vgic_init: implement vgic_init (diff) | |
| download | linux-b0442ee227e826afc4df16cdfb8bd6eef6a8f425.tar.xz linux-b0442ee227e826afc4df16cdfb8bd6eef6a8f425.zip | |
KVM: arm/arm64: vgic-new: vgic_init: implement map_resources
map_resources is the last initialization step. It is executed on
first VCPU run. At that stage the code checks that userspace has provided
the base addresses for the relevant VGIC regions, which depend on the
type of VGIC that is exposed to the guest. Also we check if the two
regions overlap.
If the checks succeeded, we register the respective register frames with
the kvm_io_bus framework.
If we emulate a GICv2, the function also forces vgic_init execution if
it has not been executed yet. Also we map the virtual GIC CPU interface
onto the guest's CPU interface.
Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic.h')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h index 5951551820b9..7b300ca370b7 100644 --- a/virt/kvm/arm/vgic/vgic.h +++ b/virt/kvm/arm/vgic/vgic.h @@ -55,6 +55,7 @@ void vgic_v2_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); void vgic_v2_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); void vgic_v2_enable(struct kvm_vcpu *vcpu); int vgic_v2_probe(const struct gic_kvm_info *info); +int vgic_v2_map_resources(struct kvm *kvm); int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address, enum vgic_type); @@ -68,6 +69,7 @@ void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); void vgic_v3_enable(struct kvm_vcpu *vcpu); int vgic_v3_probe(const struct gic_kvm_info *info); +int vgic_v3_map_resources(struct kvm *kvm); int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address); #else static inline void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu) @@ -110,6 +112,11 @@ static inline int vgic_v3_probe(const struct gic_kvm_info *info) return -ENODEV; } +static inline int vgic_v3_map_resources(struct kvm *kvm) +{ + return -ENODEV; +} + static inline int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address) { |