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xen: correct error for building p2m list on 32 bits

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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: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Juergen Gross 2015-01-12 06:05:07 +01:00 committed by David Vrabel
parent 7be0772d19
commit 82c92ed135
1 changed files with 1 additions and 1 deletions
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arch/x86/xen/p2m.c
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@ -378,7 +378,7 @@ static void __init xen_rebuild_p2m_list(unsigned long *p2m)
p2m_missing_pte : p2m_identity_pte; p2m_missing_pte : p2m_identity_pte;
for (i = 0; i < PMDS_PER_MID_PAGE; i++) { for (i = 0; i < PMDS_PER_MID_PAGE; i++) {
pmdp = populate_extra_pmd( 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)); set_pmd(pmdp, __pmd(__pa(ptep) | _KERNPG_TABLE));
} }
} }