[xen staging] x86/msr: Fix XEN_MSR_PAT to build with older binutils

[patchbot@xxxxxxx]

commit 4f1b2e581744d5f78e4c809faf0a3167644afb82
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Thu Apr 30 10:34:56 2020 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Apr 30 10:34:56 2020 +0200

    x86/msr: Fix XEN_MSR_PAT to build with older binutils
    
    Older binutils complains with:
      trampoline.S:95: Error: junk `ul&0xffffffff' after expression
    
    Use an assembly-safe constant.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/include/asm-x86/processor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/include/asm-x86/processor.h b/xen/include/asm-x86/processor.h
index ea6e5497f4..8f6f5a97dd 100644
--- a/xen/include/asm-x86/processor.h
+++ b/xen/include/asm-x86/processor.h
@@ -99,7 +99,7 @@
  * Host IA32_CR_PAT value to cover all memory types.  This is not the default
  * MSR_PAT value, and is an ABI with PV guests.
  */
-#define XEN_MSR_PAT 0x050100070406ul
+#define XEN_MSR_PAT _AC(0x050100070406, ULL)
 
 #ifndef __ASSEMBLY__
 
--
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