[IA64] move evtchn_vector to shared_info

Move evtchn_vector from vcpu_info to shared_info.

Signed-off-by: Tristan Gingold <tristan.gingold@bull.net>

linux-2.6-xen-sparse/arch/ia64/xen/drivers/evtchn_ia64.c

@@ -246,25 +246,14 @@ static struct irqaction evtchn_irqaction = {
 	.name =		"xen-event-channel"
 };
 
-int evtchn_irq = 0xe9;
+static int evtchn_irq = 0xe9;
 void __init evtchn_init(void)
 {
     shared_info_t *s = HYPERVISOR_shared_info;
-    vcpu_info_t   *vcpu_info = &s->vcpu_info[smp_processor_id()];
 
-#if 0
-    int ret;
-    irq = assign_irq_vector(AUTO_ASSIGN);
-    ret = request_irq(irq, evtchn_interrupt, 0, "xen-event-channel", NULL);
-    if (ret < 0)
-    {
-	printk("xen-event-channel unable to get irq %d (%d)\n", irq, ret);
-	return;
-    }
-#endif
     register_percpu_irq(evtchn_irq, &evtchn_irqaction);
 
-    vcpu_info->arch.evtchn_vector = evtchn_irq;
+    s->arch.evtchn_vector = evtchn_irq;
     printk("xen-event-channel using irq %d\n", evtchn_irq);
 
     spin_lock_init(&irq_mapping_update_lock);

linux-2.6-xen-sparse/arch/ia64/xen/hypercall.S

@@ -247,7 +247,7 @@ GLOBAL_ENTRY(xen_set_kr)
 	XEN_RESTORE_PSR_IC
 	;;
 	br.ret.sptk.many rp
-END(xen_set_rr)
+END(xen_set_kr)
 
 GLOBAL_ENTRY(xen_fc)
 	movl r8=running_on_xen;;

tools/libxc/xc_ia64_stubs.c

@@ -723,7 +723,7 @@ int xc_hvm_build(int xc_handle,
 
     ctxt->flags = VGCF_VMX_GUEST;
     ctxt->regs.cr_iip = 0x80000000ffffffb0UL;
-    ctxt->vcpu.privregs = 0;
+    ctxt->privregs = 0;
 
     memset( &launch_op, 0, sizeof(launch_op) );
 

tools/libxc/xc_linux_build.c

@@ -1114,7 +1114,7 @@ static int xc_linux_build_internal(int xc_handle,
     ctxt->regs.ar_fpsr = xc_ia64_fpsr_default();
     /* currently done by hypervisor, should move here */
     /* ctxt->regs.r28 = dom_fw_setup(); */
-    ctxt->vcpu.privregs = 0;
+    ctxt->privregs = 0;
     ctxt->sys_pgnr = 3;
     i = 0; /* silence unused variable warning */
 #else /* x86 */

xen/arch/ia64/xen/domain.c

@@ -269,11 +269,7 @@ fail_nomem:
 
 void arch_getdomaininfo_ctxt(struct vcpu *v, struct vcpu_guest_context *c)
 {
-	struct pt_regs *regs = vcpu_regs (v);
-
-	c->regs = *regs;
-	c->vcpu.evtchn_vector = v->vcpu_info->arch.evtchn_vector;
-
+	c->regs = *vcpu_regs (v);
 	c->shared = v->domain->shared_info->arch;
 }
 
@@ -312,11 +308,10 @@ int arch_set_info_guest(struct vcpu *v, struct vcpu_guest_context *c)
 	}
 	new_thread(v, regs->cr_iip, 0, 0);
 
- 	v->vcpu_info->arch.evtchn_vector = c->vcpu.evtchn_vector;
-	if ( c->vcpu.privregs && copy_from_user(v->arch.privregs,
-			   c->vcpu.privregs, sizeof(mapped_regs_t))) {
+	if ( c->privregs && copy_from_user(v->arch.privregs,
+			   c->privregs, sizeof(mapped_regs_t))) {
 	    printk("Bad ctxt address in arch_set_info_guest: %p\n",
-		   c->vcpu.privregs);
+		   c->privregs);
 	    return -EFAULT;
 	}
 

xen/arch/ia64/xen/hypercall.c

@@ -153,9 +153,6 @@ fw_hypercall_ipi (struct pt_regs *regs)
 		c.regs.cr_iip = targ_regs->cr_iip;
 		c.regs.r1 = targ_regs->r1;
 		
-		/* Copy from vcpu 0.  */
-		c.vcpu.evtchn_vector =
-			current->domain->vcpu[0]->vcpu_info->arch.evtchn_vector;
 		if (arch_set_info_guest (targ, &c) != 0) {
 			printf ("arch_boot_vcpu: failure\n");
 			return;

xen/arch/ia64/xen/vcpu.c

@@ -682,9 +682,9 @@ UINT64 vcpu_check_pending_interrupts(VCPU *vcpu)
 	 */
 check_start:
 	if (event_pending(vcpu) && 
-		!test_bit(vcpu->vcpu_info->arch.evtchn_vector,
+		!test_bit(vcpu->domain->shared_info->arch.evtchn_vector,
 			&PSCBX(vcpu, insvc[0])))
-		vcpu_pend_interrupt(vcpu, vcpu->vcpu_info->arch.evtchn_vector);
+		vcpu_pend_interrupt(vcpu, vcpu->domain->shared_info->arch.evtchn_vector);
 
 	p = &PSCBX(vcpu,irr[3]);
 	r = &PSCBX(vcpu,insvc[3]);

xen/include/asm-ia64/event.h

@@ -29,7 +29,7 @@ static inline void evtchn_notify(struct vcpu *v)
         smp_send_event_check_cpu(v->processor);
 
     if(!VMX_DOMAIN(v))
-	vcpu_pend_interrupt(v, v->vcpu_info->arch.evtchn_vector);
+	vcpu_pend_interrupt(v, v->domain->shared_info->arch.evtchn_vector);
 }
 
 /* Note: Bitwise operations result in fast code with no branches. */

xen/include/public/arch-ia64.h

@@ -293,8 +293,6 @@ typedef struct {
 } mapped_regs_t;
 
 typedef struct {
-    mapped_regs_t *privregs;
-    int evtchn_vector;
 } arch_vcpu_info_t;
 
 typedef mapped_regs_t vpd_t;
@@ -302,6 +300,9 @@ typedef mapped_regs_t vpd_t;
 typedef struct {
     unsigned int flags;
     unsigned long start_info_pfn;
+
+    /* Interrupt vector for event channel.  */
+    int evtchn_vector;
 } arch_shared_info_t;
 
 typedef struct {
@@ -321,7 +322,7 @@ typedef struct vcpu_guest_context {
     unsigned long vm_assist;   /* VMASST_TYPE_* bitmap, now none on IPF */
 
     cpu_user_regs_t regs;
-    arch_vcpu_info_t vcpu;
+    mapped_regs_t *privregs;
     arch_shared_info_t shared;
     arch_initrd_info_t initrd;
     char cmdline[IA64_COMMAND_LINE_SIZE];