File 5c87b6c8-drop-arch_evtchn_inject.patch of Package xen

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File 5c87b6c8-drop-arch_evtchn_inject.patch of Package xen (Revision 2eceb61a2a4938f53b2c533ca49bbbdd)

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# Commit d9195962a62241f5f1b89d926eff8c063678f0c5
# Date 2019-03-12 14:40:24 +0100
# Author Jan Beulich <jbeulich@suse.com>
# Committer Jan Beulich <jbeulich@suse.com>
events: drop arch_evtchn_inject()

Have the only user call vcpu_mark_events_pending() instead, at the same
time arranging for correct ordering of the writes (evtchn_pending_sel
should be written before evtchn_upcall_pending).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Julien Grall <julien.grall@arm.com>

--- a/xen/arch/arm/vgic.c
+++ b/xen/arch/arm/vgic.c
@@ -597,11 +597,6 @@ out:
     return;
 }
 
-void arch_evtchn_inject(struct vcpu *v)
-{
-    vgic_inject_irq(v->domain, v, v->domain->arch.evtchn_irq, true);
-}
-
 bool vgic_evtchn_irq_pending(struct vcpu *v)
 {
     struct pending_irq *p;
--- a/xen/arch/arm/vgic/vgic.c
+++ b/xen/arch/arm/vgic/vgic.c
@@ -692,11 +692,6 @@ void vgic_kick_vcpus(struct domain *d)
     }
 }
 
-void arch_evtchn_inject(struct vcpu *v)
-{
-    vgic_inject_irq(v->domain, v, v->domain->arch.evtchn_irq, true);
-}
-
 bool vgic_evtchn_irq_pending(struct vcpu *v)
 {
     struct vgic_irq *irq;
--- a/xen/arch/x86/irq.c
+++ b/xen/arch/x86/irq.c
@@ -2724,9 +2724,3 @@ int allocate_and_map_msi_pirq(struct domain *d, int index, int *pirq_p,
 
     return ret;
 }
-
-void arch_evtchn_inject(struct vcpu *v)
-{
-    if ( is_hvm_vcpu(v) )
-        hvm_assert_evtchn_irq(v);
-}
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -1306,10 +1306,9 @@ int map_vcpu_info(struct vcpu *v, unsigned long gfn, unsigned offset)
      * Mark everything as being pending just to make sure nothing gets
      * lost.  The domain will get a spurious event, but it can cope.
      */
-    vcpu_info(v, evtchn_upcall_pending) = 1;
     for ( i = 0; i < BITS_PER_EVTCHN_WORD(d); i++ )
         set_bit(i, &vcpu_info(v, evtchn_pending_sel));
-    arch_evtchn_inject(v);
+    vcpu_mark_events_pending(v);
 
     return 0;
 }
--- a/xen/include/xen/event.h
+++ b/xen/include/xen/event.h
@@ -91,9 +91,6 @@ int guest_enabled_event(struct vcpu *v, uint32_t virq);
 /* Notify remote end of a Xen-attached event channel.*/
 void notify_via_xen_event_channel(struct domain *ld, int lport);
 
-/* Inject an event channel notification into the guest */
-void arch_evtchn_inject(struct vcpu *v);
-
 /*
  * Internal event channel object storage.
  *

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File 5c87b6c8-drop-arch_evtchn_inject.patch of Package xen (Revision 2eceb61a2a4938f53b2c533ca49bbbdd)

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