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ARM: KVM: VGIC accept vcpu and dist base addresses from user space

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User space defines the model to emulate to a guest and should therefore
decide which addresses are used for both the virtual CPU interface
directly mapped in the guest physical address space and for the emulated
distributor interface, which is mapped in software by the in-kernel VGIC
support.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Christoffer Dall
2013-01-21 19:36:13 -05:00
committed by Marc Zyngier
parent 1a89dd9113
commit 330690cdce
5 changed files with 90 additions and 1 deletions
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9
arch/arm/include/asm/kvm_vgic.h
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@@ -22,6 +22,9 @@
#include <linux/irqchip/arm-gic.h>
struct vgic_dist {
/* Distributor and vcpu interface mapping in the guest */
phys_addr_t vgic_dist_base;
phys_addr_t vgic_cpu_base;
};
struct vgic_cpu {
@@ -33,6 +36,7 @@ struct kvm_run;
struct kvm_exit_mmio;
#ifdef CONFIG_KVM_ARM_VGIC
int kvm_vgic_set_addr(struct kvm *kvm, unsigned long type, u64 addr);
bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
struct kvm_exit_mmio *mmio);
@@ -42,6 +46,11 @@ static inline int kvm_vgic_hyp_init(void)
return 0;
}
static inline int kvm_vgic_set_addr(struct kvm *kvm, unsigned long type, u64 addr)
{
return 0;
}
static inline int kvm_vgic_init(struct kvm *kvm)
{
return 0;