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Commit 4bdf5025 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

irqchip/gic-v3: Advertise GICv4 support to KVM 



As KVM needs to know about the availability of GICv4 to enable
direct injection of interrupts, let's advertise the feature in
the gic_kvm_info structure.

Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 3d63cb53

drivers/irqchip/irq-gic-v3.c

+2 −0
Original line number Diff line number Diff line
@@ -1159,6 +1159,7 @@ static void __init gic_of_setup_kvm_info(struct device_node *node) 
	if (!ret)

		gic_v3_kvm_info.vcpu = r;



	gic_v3_kvm_info.has_v4 = gic_data.rdists.has_vlpis;

	gic_set_kvm_info(&gic_v3_kvm_info);

}
@@ -1452,6 +1453,7 @@ static void __init gic_acpi_setup_kvm_info(void) 
		vcpu->end = vcpu->start + ACPI_GICV2_VCPU_MEM_SIZE - 1;

	}



	gic_v3_kvm_info.has_v4 = gic_data.rdists.has_vlpis;

	gic_set_kvm_info(&gic_v3_kvm_info);

}

include/linux/irqchip/arm-gic-common.h

+2 −0
Original line number Diff line number Diff line
@@ -27,6 +27,8 @@ struct gic_kvm_info { 
	unsigned int	maint_irq;

	/* Virtual control interface */

	struct resource vctrl;

	/* vlpi support */

	bool		has_v4;

};



const struct gic_kvm_info *gic_get_kvm_info(void);