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-rw-r--r--include/asm-x86/xen/hypercall.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/include/asm-x86/xen/hypercall.h b/include/asm-x86/xen/hypercall.h
index d9e4cf7b23a..91cb7fd5c12 100644
--- a/include/asm-x86/xen/hypercall.h
+++ b/include/asm-x86/xen/hypercall.h
@@ -466,10 +466,15 @@ MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
struct desc_struct desc)
{
mcl->op = __HYPERVISOR_update_descriptor;
- mcl->args[0] = maddr;
- mcl->args[1] = maddr >> 32;
- mcl->args[2] = desc.a;
- mcl->args[3] = desc.b;
+ if (sizeof(maddr) == sizeof(long)) {
+ mcl->args[0] = maddr;
+ mcl->args[1] = *(unsigned long *)&desc;
+ } else {
+ mcl->args[0] = maddr;
+ mcl->args[1] = maddr >> 32;
+ mcl->args[2] = desc.a;
+ mcl->args[3] = desc.b;
+ }
}
static inline void