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| author | Juergen Gross <jgross@suse.com> | 2015-01-12 06:05:10 +0100 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2015-01-12 10:09:55 +0000 |
| commit | 9a17ad7f3db17db0c6375de96672f16ab1aa51ae (patch) | |
| tree | 054864393127a9d5fae232fc2ee046eb0e824b39 /arch | |
| parent | e86f949667127509d95b6c678fdd928b93128d9d (diff) | |
| download | linux-9a17ad7f3db17db0c6375de96672f16ab1aa51ae.tar.bz2 | |
xen: check for zero sized area when invalidating memory
With the introduction of the linear mapped p2m list setting memory
areas to "invalid" had to be delayed. When doing the invalidation
make sure no zero sized areas are processed.
Signed-off-by: Juegren Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/setup.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 410210f279bf..865e56cea7a0 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -160,6 +160,8 @@ void __init xen_inv_extra_mem(void) int i; for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) { + if (!xen_extra_mem[i].size) + continue; pfn_s = PFN_DOWN(xen_extra_mem[i].start); pfn_e = PFN_UP(xen_extra_mem[i].start + xen_extra_mem[i].size); for (pfn = pfn_s; pfn < pfn_e; pfn++) |