From: Marc Zyngier <marc.zyngier@arm.com>
Date: Sun, 25 Jun 2017 14:10:46 +0100
Subject: irqchip/gic-v3: Advertise GICv4 support to KVM
Patch-mainline: v4.14-rc1
Git-commit: 4bdf502517288662d883fbaa915874790f51a2cd
References: FATE#323954
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>
Acked-by: Alexander Graf <agraf@suse.de>
---
drivers/irqchip/irq-gic-v3.c | 2 ++
include/linux/irqchip/arm-gic-common.h | 2 ++
2 files changed, 4 insertions(+)
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1172,6 +1172,7 @@
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);
}
@@ -1468,6 +1469,7 @@
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);
}
--- a/include/linux/irqchip/arm-gic-common.h
+++ b/include/linux/irqchip/arm-gic-common.h
@@ -27,6 +27,8 @@
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);