[Xen-changelog] [linux-2.6.18-xen] [IA64] Fix PV driver domains - xenlinux xencomm support

["Xen patchbot-linux-2.6.18-xen" <patchbot-linux-2.6.18-xen@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
# Date 1218163175 -32400
# Node ID a18df47f671b66e0d0fe68c28a882a69303a9a55
# Parent  324a5c041301d42b662e20f6175cba6c9b26f262
[IA64] Fix PV driver domains - xenlinux xencomm support

This adds xencomm support for several PHYSDEVOP calls (map_pirq and
unmap_pirq) as well as XEN_DOMCTL_assign_device.

Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
---
 arch/ia64/xen/xcom_hcall.c   |    6 ++++++
 arch/ia64/xen/xcom_privcmd.c |   33 +++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff -r 324a5c041301 -r a18df47f671b arch/ia64/xen/xcom_hcall.c
--- a/arch/ia64/xen/xcom_hcall.c        Thu Aug 07 11:58:10 2008 +0900
+++ b/arch/ia64/xen/xcom_hcall.c        Fri Aug 08 11:39:35 2008 +0900
@@ -148,6 +148,12 @@ xencomm_hypercall_physdev_op(int cmd, vo
        case PHYSDEVOP_manage_pci_remove:
                argsize = sizeof(physdev_manage_pci_t);
                break;
+       case PHYSDEVOP_map_pirq:
+               argsize = sizeof(physdev_map_pirq_t);
+               break;
+       case PHYSDEVOP_unmap_pirq:
+               argsize = sizeof(physdev_unmap_pirq_t);
+               break;
 
        default:
                printk("%s: unknown physdev op %d\n", __func__, cmd);
diff -r 324a5c041301 -r a18df47f671b arch/ia64/xen/xcom_privcmd.c
--- a/arch/ia64/xen/xcom_privcmd.c      Thu Aug 07 11:58:10 2008 +0900
+++ b/arch/ia64/xen/xcom_privcmd.c      Fri Aug 08 11:39:35 2008 +0900
@@ -327,6 +327,7 @@ xencomm_privcmd_domctl(privcmd_hypercall
        case XEN_DOMCTL_settimeoffset:
        case XEN_DOMCTL_sendtrigger:
        case XEN_DOMCTL_set_opt_feature:
+       case XEN_DOMCTL_assign_device:
                break;
        case XEN_DOMCTL_pin_mem_cacheattr:
                return -ENOSYS;
@@ -829,6 +830,36 @@ xencomm_privcmd_ia64_debug_op(privcmd_hy
 
        xencomm_free(desc);
        return ret;     
+}
+
+static int
+xencomm_privcmd_ia64_physdev_op(privcmd_hypercall_t *hypercall)
+{
+       int cmd = hypercall->arg[0];
+       struct xencomm_handle *desc;
+       unsigned int argsize;
+       int ret;
+
+       switch (cmd) {
+       case PHYSDEVOP_map_pirq:
+               argsize = sizeof(physdev_map_pirq_t);
+               break;
+       case PHYSDEVOP_unmap_pirq:
+               argsize = sizeof(physdev_unmap_pirq_t);
+               break;
+       default:
+               printk("%s: unknown PHYSDEVOP %d\n", __func__, cmd);
+               return -EINVAL;
+       }
+
+       desc = xencomm_map((void *)hypercall->arg[1], argsize);
+       if ((void *)hypercall->arg[1] != NULL && argsize > 0 && desc == NULL)
+               return -ENOMEM;
+
+       ret = xencomm_arch_hypercall_physdev_op(cmd, desc);
+
+       xencomm_free(desc);
+       return ret;
 }
 
 int
@@ -857,6 +888,8 @@ privcmd_hypercall(privcmd_hypercall_t *h
                return xencomm_privcmd_ia64_dom0vp_op(hypercall);
        case __HYPERVISOR_ia64_debug_op:
                return xencomm_privcmd_ia64_debug_op(hypercall);
+       case __HYPERVISOR_physdev_op:
+               return xencomm_privcmd_ia64_physdev_op(hypercall);
        default:
                printk("%s: unknown hcall (%ld)\n", __func__, hypercall->op);
                return -ENOSYS;

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