diff mbox series

[RFC,25/84] x86_64/mm.c: remove code that serves no purpose in setup_m2p_table

Message ID 3217dbfb7b277abc7de77067f38a2948cd1532cc.1569489002.git.hongyax@amazon.com (mailing list archive)
State New, archived
Headers show
Series Remove direct map from Xen | expand

Commit Message

Xia, Hongyan Sept. 26, 2019, 9:45 a.m. UTC 
From: Wei Liu <wei.liu2@citrix.com>

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 xen/arch/x86/x86_64/mm.c | 2 --
 1 file changed, 2 deletions(-)
diff mbox series

Patch

diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c
index 945ae123a6..9b39b2ffcb 100644
--- a/xen/arch/x86/x86_64/mm.c
+++ b/xen/arch/x86/x86_64/mm.c
@@ -480,8 +480,6 @@  static int setup_m2p_table(struct mem_hotadd_info *info)
             l2e_write(l2_ro_mpt, l2e_from_mfn(mfn,
                    /*_PAGE_GLOBAL|*/_PAGE_PSE|_PAGE_USER|_PAGE_PRESENT));
         }
-        if ( !((unsigned long)l2_ro_mpt & ~PAGE_MASK) )
-            l2_ro_mpt = NULL;
         i += ( 1UL << (L2_PAGETABLE_SHIFT - 3));
     }
 #undef CNT