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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2013-11-11 12:50:30 +0000 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-11-11 12:48:58 -0500 |
| commit | 18c51e1a3fabb455ff1f5cd610097d89f577b8f7 (patch) | |
| tree | 5489d46bea7ecd8fc8713d8c59cde17372d96068 /arch/arm/mm/mmap.c | |
| parent | ffc555be09bd2603abdbc6f8b64c6a7477facc48 (diff) | |
xen/arm: pfn_to_mfn and mfn_to_pfn return the argument if nothing is in the p2m
Some common Xen drivers, like balloon.c, call pfn_to_mfn and mfn_to_pfn
even for autotranslate guests, expecting the argument back.
The following commit broke these drivers by changing the behavior of
pfn_to_mfn and mfn_to_pfn:
commit 4a19138c6505e224d9f4cc2fe9ada9188d7100ea
Author: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Thu Oct 17 16:22:27 2013 +0000
arm/xen,arm64/xen: introduce p2m
They now return INVALID_P2M_ENTRY if Linux doesn't actually know what is
the mfn backing a pfn or what is the pfn corresponding to an mfn.
Fix the regression by switching to the old behavior.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Tested-by: Ian Campbell <ian.campbell@citrix.com>
Diffstat (limited to 'arch/arm/mm/mmap.c')
0 files changed, 0 insertions, 0 deletions