[PATCH v4 17/31] x86/mm: move compat descriptor handling code

[Wei Liu <wei.liu2@citrix.com>]

Move them along side the non-compat variants.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 xen/arch/x86/pv/descriptor-tables.c | 40 ++++++++++++++++++++++++++++++++++++
 xen/arch/x86/x86_64/compat/mm.c     | 41 -------------------------------------
 2 files changed, 40 insertions(+), 41 deletions(-)

diff --git a/xen/arch/x86/pv/descriptor-tables.c b/xen/arch/x86/pv/descriptor-tables.c
index 12dc45b671..a302812774 100644
--- a/xen/arch/x86/pv/descriptor-tables.c
+++ b/xen/arch/x86/pv/descriptor-tables.c
@@ -177,6 +177,46 @@ long do_update_descriptor(u64 pa, u64 desc)
     return ret;
 }
 
+int compat_set_gdt(XEN_GUEST_HANDLE_PARAM(uint) frame_list,
+                   unsigned int entries)
+{
+    unsigned int i, nr_pages = (entries + 511) / 512;
+    unsigned long frames[16];
+    long ret;
+
+    /* Rechecked in pv_set_gdt, but ensures a sane limit for copy_from_user(). */
+    if ( entries > FIRST_RESERVED_GDT_ENTRY )
+        return -EINVAL;
+
+    if ( !guest_handle_okay(frame_list, nr_pages) )
+        return -EFAULT;
+
+    for ( i = 0; i < nr_pages; ++i )
+    {
+        unsigned int frame;
+
+        if ( __copy_from_guest(&frame, frame_list, 1) )
+            return -EFAULT;
+        frames[i] = frame;
+        guest_handle_add_offset(frame_list, 1);
+    }
+
+    domain_lock(current->domain);
+
+    if ( (ret = pv_set_gdt(current, frames, entries)) == 0 )
+        flush_tlb_local();
+
+    domain_unlock(current->domain);
+
+    return ret;
+}
+
+int compat_update_descriptor(u32 pa_lo, u32 pa_hi, u32 desc_lo, u32 desc_hi)
+{
+    return do_update_descriptor(pa_lo | ((u64)pa_hi << 32),
+                                desc_lo | ((u64)desc_hi << 32));
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/xen/arch/x86/x86_64/compat/mm.c b/xen/arch/x86/x86_64/compat/mm.c
index d61fb89c27..89a0b27573 100644
--- a/xen/arch/x86/x86_64/compat/mm.c
+++ b/xen/arch/x86/x86_64/compat/mm.c
@@ -6,47 +6,6 @@
 #include <asm/mem_paging.h>
 #include <asm/mem_sharing.h>
 
-#include <asm/pv/processor.h>
-
-int compat_set_gdt(XEN_GUEST_HANDLE_PARAM(uint) frame_list, unsigned int entries)
-{
-    unsigned int i, nr_pages = (entries + 511) / 512;
-    unsigned long frames[16];
-    long ret;
-
-    /* Rechecked in pv_set_gdt, but ensures a sane limit for copy_from_user(). */
-    if ( entries > FIRST_RESERVED_GDT_ENTRY )
-        return -EINVAL;
-
-    if ( !guest_handle_okay(frame_list, nr_pages) )
-        return -EFAULT;
-
-    for ( i = 0; i < nr_pages; ++i )
-    {
-        unsigned int frame;
-
-        if ( __copy_from_guest(&frame, frame_list, 1) )
-            return -EFAULT;
-        frames[i] = frame;
-        guest_handle_add_offset(frame_list, 1);
-    }
-
-    domain_lock(current->domain);
-
-    if ( (ret = pv_set_gdt(current, frames, entries)) == 0 )
-        flush_tlb_local();
-
-    domain_unlock(current->domain);
-
-    return ret;
-}
-
-int compat_update_descriptor(u32 pa_lo, u32 pa_hi, u32 desc_lo, u32 desc_hi)
-{
-    return do_update_descriptor(pa_lo | ((u64)pa_hi << 32),
-                                desc_lo | ((u64)desc_hi << 32));
-}
-
 int compat_arch_memory_op(unsigned long cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
 {
     struct compat_machphys_mfn_list xmml;
-- 
2.11.0


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