From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Thu, 30 Jun 2016 15:56:40 +0000 (+0200)
Subject: xen/events: use xen_vcpu_id mapping in events_base
X-Git-Tag: v4.14-rc1~2817^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8058c0b897e7d1ba5c900cb17eb82aa0d88fca53;p=platform%2Fkernel%2Flinux-rpi.git

xen/events: use xen_vcpu_id mapping in events_base

EVTCHNOP_bind_ipi and EVTCHNOP_bind_virq pass vCPU id as a parameter
and Xen's idea of vCPU id should be used. Use the newly introduced
xen_vcpu_id mapping to convert it from Linux's id.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 8fb7cbf..d5dbdb9 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -895,7 +895,7 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
 		irq_set_chip_and_handler_name(irq, &xen_percpu_chip,
 					      handle_percpu_irq, "ipi");
 
-		bind_ipi.vcpu = cpu;
+		bind_ipi.vcpu = xen_vcpu_nr(cpu);
 		if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_ipi,
 						&bind_ipi) != 0)
 			BUG();
@@ -991,7 +991,7 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu)
 						      handle_edge_irq, "virq");
 
 		bind_virq.virq = virq;
-		bind_virq.vcpu = cpu;
+		bind_virq.vcpu = xen_vcpu_nr(cpu);
 		ret = HYPERVISOR_event_channel_op(EVTCHNOP_bind_virq,
 						&bind_virq);
 		if (ret == 0)
@@ -1319,7 +1319,7 @@ static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
 
 	/* Send future instances of this interrupt to other vcpu. */
 	bind_vcpu.port = evtchn;
-	bind_vcpu.vcpu = tcpu;
+	bind_vcpu.vcpu = xen_vcpu_nr(tcpu);
 
 	/*
 	 * Mask the event while changing the VCPU binding to prevent
@@ -1459,7 +1459,7 @@ static void restore_cpu_virqs(unsigned int cpu)
 
 		/* Get a new binding from Xen. */
 		bind_virq.virq = virq;
-		bind_virq.vcpu = cpu;
+		bind_virq.vcpu = xen_vcpu_nr(cpu);
 		if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_virq,
 						&bind_virq) != 0)
 			BUG();
@@ -1483,7 +1483,7 @@ static void restore_cpu_ipis(unsigned int cpu)
 		BUG_ON(ipi_from_irq(irq) != ipi);
 
 		/* Get a new binding from Xen. */
-		bind_ipi.vcpu = cpu;
+		bind_ipi.vcpu = xen_vcpu_nr(cpu);
 		if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_ipi,
 						&bind_ipi) != 0)
 			BUG();