예제 #1
0
파일: vgic-v3.c 프로젝트: guanhe0/kernel
static struct vgic_lr vgic_v3_get_lr(const struct kvm_vcpu *vcpu, int lr)
{
	struct vgic_lr lr_desc;
	u64 val = vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[LR_INDEX(lr)];

	if (vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3)
		lr_desc.irq = val & ICH_LR_VIRTUALID_MASK;
	else
		lr_desc.irq = val & GICH_LR_VIRTUALID;

	lr_desc.source = 0;
	if (lr_desc.irq <= 15 &&
	    vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V2)
		lr_desc.source = (val >> GICH_LR_PHYSID_CPUID_SHIFT) & 0x7;

	lr_desc.state = 0;

	if (val & ICH_LR_PENDING_BIT)
		lr_desc.state |= LR_STATE_PENDING;
	if (val & ICH_LR_ACTIVE_BIT)
		lr_desc.state |= LR_STATE_ACTIVE;
	if (val & ICH_LR_EOI)
		lr_desc.state |= LR_EOI_INT;
	if (val & ICH_LR_HW) {
		lr_desc.state |= LR_HW;
		lr_desc.hwirq = (val >> ICH_LR_PHYS_ID_SHIFT) & GENMASK(9, 0);
	}
예제 #2
0
파일: vgic-v3.c 프로젝트: 19Dan01/linux
static void vgic_v3_set_lr(struct kvm_vcpu *vcpu, int lr,
			   struct vgic_lr lr_desc)
{
	u64 lr_val;

	lr_val = lr_desc.irq;

	/*
	 * Currently all guest IRQs are Group1, as Group0 would result
	 * in a FIQ in the guest, which it wouldn't expect.
	 * Eventually we want to make this configurable, so we may revisit
	 * this in the future.
	 */
	if (vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3)
		lr_val |= ICH_LR_GROUP;
	else
		lr_val |= (u32)lr_desc.source << GICH_LR_PHYSID_CPUID_SHIFT;

	if (lr_desc.state & LR_STATE_PENDING)
		lr_val |= ICH_LR_PENDING_BIT;
	if (lr_desc.state & LR_STATE_ACTIVE)
		lr_val |= ICH_LR_ACTIVE_BIT;
	if (lr_desc.state & LR_EOI_INT)
		lr_val |= ICH_LR_EOI;

	vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[LR_INDEX(lr)] = lr_val;
}
예제 #3
0
static struct vgic_lr vgic_v3_get_lr(const struct kvm_vcpu *vcpu, int lr)
{
	struct vgic_lr lr_desc;
	u64 val = vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[LR_INDEX(lr)];

	lr_desc.irq	= val & GICH_LR_VIRTUALID;
	if (lr_desc.irq <= 15)
		lr_desc.source	= (val >> GICH_LR_PHYSID_CPUID_SHIFT) & 0x7;
	else