Fixes for first step in getting domU back up (by Kevin Tian)

linux-2.6-xen-sparse/arch/ia64/xen/drivers/patches/privcmd.c.patch

@@ -11,39 +11,43 @@ diff -Naur xen/privcmd/privcmd.c xen.patched/privcmd/privcmd.c
  				if ((rc = direct_remap_pfn_range(
  					vma,
  					msg[j].va&PAGE_MASK, 
-@@ -148,6 +151,7 @@
- 	}
- 	break;
+@@ -180,6 +183,15 @@
+ 		for (i = 0; i < m.num; i++, addr += PAGE_SIZE, p++) {
+ 			if (get_user(mfn, p))
+ 				return -EFAULT;
++#ifdef __ia64__
++			ret = remap_pfn_range(vma,
++					      addr&PAGE_MASK,
++					      mfn,
++					      1<<PAGE_SHIFT,
++					      vma->vm_page_prot);
++			if (ret < 0)
++			    goto batch_err;
++#else
  
-+#ifndef __ia64__
- 	case IOCTL_PRIVCMD_MMAPBATCH: {
- 		mmu_update_t u;
- 		privcmd_mmapbatch_t m;
-@@ -206,7 +210,9 @@
- 	}
+ 			ret = create_lookup_pte_addr(vma->vm_mm, addr, &ptep);
+ 			if (ret)
+@@ -190,6 +202,7 @@
+ 
+ 			if (HYPERVISOR_mmu_update(&u, 1, NULL, m.dom) < 0)
+ 				put_user(0xF0000000 | mfn, p);
++#endif
+ 		}
+ 
+ 		ret = 0;
+@@ -205,6 +218,7 @@
  	break;
  #endif
-+#endif
  
 +#ifndef __ia64__
  	case IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN: {
  		unsigned long m2pv = (unsigned long)machine_to_phys_mapping;
  		pgd_t *pgd = pgd_offset_k(m2pv);
-@@ -218,6 +224,7 @@
+@@ -216,6 +230,7 @@
  			-EFAULT: 0;
  	}
  	break;
 +#endif
  
- 	case IOCTL_PRIVCMD_INITDOMAIN_STORE: {
- 		extern int do_xenbus_probe(void*);
-@@ -241,6 +248,9 @@
- 
- 		/* Initial connect. Setup channel and page. */
- 		xen_start_info->store_evtchn = data;
-+#ifdef __ia64__
-+#define	pfn_to_mfn(x)	(x)
-+#endif
- 		xen_start_info->store_mfn =
- 			pfn_to_mfn(virt_to_phys((void *)page) >>
- 				   PAGE_SHIFT);
+ 	default:
+ 		ret = -EINVAL;

xen/arch/ia64/xen/hypercall.c

@@ -187,6 +187,10 @@ ia64_hypercall (struct pt_regs *regs)
 		regs->r8 = do_console_io(regs->r14, regs->r15, regs->r16);
 		break;
 
+	    case __HYPERVISOR_xen_version:
+		regs->r8 = do_xen_version(regs->r14, regs->r15);
+		break;
+
 	    default:
 		printf("unknown hypercall %x\n", regs->r2);
 		regs->r8 = (unsigned long)-1;

xen/arch/ia64/xen/xenmisc.c

@@ -290,8 +290,8 @@ void context_switch(struct vcpu *prev, struct vcpu *next)
 //prev->domain->domain_id,(long)prev&0xffffff,next->domain->domain_id,(long)next&0xffffff);
 //if (prev->domain->domain_id == 1 && next->domain->domain_id == 0) cs10foo();
 //if (prev->domain->domain_id == 0 && next->domain->domain_id == 1) cs01foo();
-printk("@@sw%d/%x %d->%d\n",smp_processor_id(), hard_smp_processor_id (),
-       prev->domain->domain_id,next->domain->domain_id);
+//printk("@@sw%d/%x %d->%d\n",smp_processor_id(), hard_smp_processor_id (),
+//       prev->domain->domain_id,next->domain->domain_id);
     if(VMX_DOMAIN(prev)){
     	vtm_domain_out(prev);
     }