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authorAndre Przywara <andre.przywara@arm.com>2014-06-02 18:19:12 +0400
committerChristoffer Dall <christoffer.dall@linaro.org>2015-01-20 20:25:26 +0300
commitb26e5fdac43c1b7c394502917e42e3b91f3aa1a3 (patch)
tree128812f82e426b1d6d460421f9b2efe5b0904779 /include/kvm
parent05bc8aafe664b3c7507736db305b3d3910ed2f05 (diff)
downloadlinux-b26e5fdac43c1b7c394502917e42e3b91f3aa1a3.tar.xz
arm/arm64: KVM: introduce per-VM ops
Currently we only have one virtual GIC model supported, so all guests use the same emulation code. With the addition of another model we end up with different guests using potentially different vGIC models, so we have to split up some functions to be per VM. Introduce a vgic_vm_ops struct to hold function pointers for those functions that are different and provide the necessary code to initialize them. Also split up the vgic_init() function to separate out VGIC model specific functionality into a separate function, which will later be different for a GICv3 model. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_vgic.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 525ce4228495..dd243969bfc3 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -134,6 +134,15 @@ struct vgic_params {
void __iomem *vctrl_base;
};
+struct vgic_vm_ops {
+ bool (*handle_mmio)(struct kvm_vcpu *, struct kvm_run *,
+ struct kvm_exit_mmio *);
+ bool (*queue_sgi)(struct kvm_vcpu *, int irq);
+ void (*add_sgi_source)(struct kvm_vcpu *, int irq, int source);
+ int (*init_model)(struct kvm *);
+ int (*map_resources)(struct kvm *, const struct vgic_params *);
+};
+
struct vgic_dist {
#ifdef CONFIG_KVM_ARM_VGIC
spinlock_t lock;
@@ -215,6 +224,8 @@ struct vgic_dist {
/* Bitmap indicating which CPU has something pending */
unsigned long *irq_pending_on_cpu;
+
+ struct vgic_vm_ops vm_ops;
#endif
};