[Xen-ia64-devel] [PATCH 20/23] vti domain save/restore: linux xencomm; add hvm_set/get_context support

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

# HG changeset patch
# User yamahata@xxxxxxxxxxxxx
# Date 1189751371 -32400
# Node ID 4ab4d270c5cab8a58776cb05a15b07abd28584ec
# Parent  ef6ca90775a0f57c260fe7a81d0ec60bb589d35b
add hvm_{set,get}context support to xcom_privcmd.c
PATCHNAME: xcom_privcmd_hvm_get_set_context

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff -r ef6ca90775a0 -r 4ab4d270c5ca arch/ia64/xen/xcom_privcmd.c
--- a/arch/ia64/xen/xcom_privcmd.c      Fri Sep 14 15:04:31 2007 +0900
+++ b/arch/ia64/xen/xcom_privcmd.c      Fri Sep 14 15:29:31 2007 +0900
@@ -302,6 +302,17 @@ xencomm_privcmd_domctl(privcmd_hypercall
                set_xen_guest_handle(kern_op.u.vcpuaffinity.cpumap.bitmap,
                                     (void *)desc);
                break;
+       case XEN_DOMCTL_gethvmcontext:
+       case XEN_DOMCTL_sethvmcontext:
+               if (kern_op.u.hvmcontext.size > 0)
+                       desc = xencomm_map(
+                               xen_guest_handle(kern_op.u.hvmcontext.buffer),
+                               kern_op.u.hvmcontext.size);
+               if (xen_guest_handle(kern_op.u.hvmcontext.buffer) != NULL &&
+                   kern_op.u.hvmcontext.size > 0 && desc == NULL)
+                       return -ENOMEM;
+               set_xen_guest_handle(kern_op.u.hvmcontext.buffer, (void*)desc);
+               break;
        case XEN_DOMCTL_max_vcpus:
        case XEN_DOMCTL_scheduler_op:
        case XEN_DOMCTL_setdomainhandle:

Attachment: 242_4ab4d270c5ca_xcom_privcmd_hvm_get_set_context.patch
Description: Text Data

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