diff options
| author |   Zhenzhong Duan <zhenzhong.duan@oracle.com> | 2015-10-27 15:19:52 -0400 |
|---|---|---|
| committer |   David Vrabel <david.vrabel@citrix.com> | 2015-11-02 17:47:38 +0000 |
| commit | abed7d0710e8f892c267932a9492ccf447674fb8 (patch) | |
| tree | f245cd24450ec88d959407014d06b18761e005aa /arch/x86/xen/setup.c | |
| parent | x86/xen: add reschedule point when mapping foreign GFNs (diff) | |
| download | linux-dev-abed7d0710e8f892c267932a9492ccf447674fb8.tar.xz linux-dev-abed7d0710e8f892c267932a9492ccf447674fb8.zip | |
xen: fix the check of e_pfn in xen_find_pfn_range
On some NUMA system, after dom0 up, we see below warning even if there are
enough pfn ranges that could be used for remapping:
"Unable to find available pfn range, not remapping identity pages"
Fix it to avoid getting a memory region of zero size in xen_find_pfn_range.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/xen/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 387b60d9bd0e..d1fac0e53d57 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -212,7 +212,7 @@ static unsigned long __init xen_find_pfn_range(unsigned long *min_pfn) e_pfn = PFN_DOWN(entry->addr + entry->size); /* We only care about E820 after this */ - if (e_pfn < *min_pfn) + if (e_pfn <= *min_pfn) continue; s_pfn = PFN_UP(entry->addr); |