[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [RFC PATCH 42/49] ARM: new VGIC: provide system register emulation stub



The Xen arch code traps system registers writes from the guest and will
relay anything GIC related to the VGIC.
Since this affects only GICv3 (which we don't yet emulate), provide a
stub implementation of vgic_emulate() for now.

Signed-off-by: Andre Przywara <andre.przywara@xxxxxxxxxx>
---
 xen/arch/arm/vgic/vgic.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xen/arch/arm/vgic/vgic.c b/xen/arch/arm/vgic/vgic.c
index 97ffdba5ad..d91028bd43 100644
--- a/xen/arch/arm/vgic/vgic.c
+++ b/xen/arch/arm/vgic/vgic.c
@@ -790,6 +790,13 @@ struct irq_desc *vgic_get_hw_irq_desc(struct domain *d, 
struct vcpu *v,
     return desc;
 }
 
+bool vgic_emulate(struct cpu_user_regs *regs, union hsr hsr)
+{
+    ASSERT(current->domain->arch.vgic.version == GIC_V3);
+
+    return false;
+}
+
 /*
  * was:
  *      int kvm_vgic_map_phys_irq(struct vcpu *vcpu, u32 virt_irq, u32 
phys_irq)
-- 
2.14.1


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.