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irqchip/gic-v3: Advertise GICv4 support to KVM

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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: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2017-06-25 14:10:46 +01:00
parent 3d63cb53e2
commit 4bdf502517
2 changed files with 4 additions and 0 deletions
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2
drivers/irqchip/irq-gic-v3.c
View File

@ -1159,6 +1159,7 @@ static void __init gic_of_setup_kvm_info(struct device_node *node)
if (!ret) if (!ret)
gic_v3_kvm_info.vcpu = r; 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); 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; 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); gic_set_kvm_info(&gic_v3_kvm_info);
} }

2
include/linux/irqchip/arm-gic-common.h
View File

@ -27,6 +27,8 @@ struct gic_kvm_info {
unsigned int maint_irq; unsigned int maint_irq;
/* Virtual control interface */ /* Virtual control interface */
struct resource vctrl; struct resource vctrl;
/* vlpi support */
bool has_v4;
}; };
const struct gic_kvm_info *gic_get_kvm_info(void); const struct gic_kvm_info *gic_get_kvm_info(void);