Commit 82c92ed1 authored by Juergen Gross's avatar Juergen Gross Committed by David Vrabel
Browse files

xen: correct error for building p2m list on 32 bits 



In xen_rebuild_p2m_list() for large areas of invalid or identity
mapped memory the pmd entries on 32 bit systems are initialized
wrong. Correct this error.

Suggested-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent 7be0772d

arch/x86/xen/p2m.c

+1 −1
Original line number Diff line number Diff line
@@ -378,7 +378,7 @@ static void __init xen_rebuild_p2m_list(unsigned long *p2m) 
			p2m_missing_pte : p2m_identity_pte;

		for (i = 0; i < PMDS_PER_MID_PAGE; i++) {

			pmdp = populate_extra_pmd(

				(unsigned long)(p2m + pfn + i * PTRS_PER_PTE));

				(unsigned long)(p2m + pfn) + i * PMD_SIZE);

			set_pmd(pmdp, __pmd(__pa(ptep) | _KERNPG_TABLE));

		}

	}