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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-03-24 17:49:22 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2017-04-20 11:38:14 +1000 |
| commit | 96df2267695199b9377bd641c7eb68c393b81b0b (patch) | |
| tree | 45bfa5980f9b72b4635b2de84a267b90c49b074d /arch/sparc/lib | |
| parent | bd9166ffe624000140fc6b606b256df01fc0d060 (diff) | |
| download | talos-obmc-linux-96df2267695199b9377bd641c7eb68c393b81b0b.tar.gz talos-obmc-linux-96df2267695199b9377bd641c7eb68c393b81b0b.zip | |
KVM: PPC: Book3S PR: Preserve storage control bits
PR KVM page fault handler performs eaddr to pte translation for a guest,
however kvmppc_mmu_book3s_64_xlate() does not preserve WIMG bits
(storage control) in the kvmppc_pte struct. If PR KVM is running as
a second level guest under HV KVM, and PR KVM tries inserting HPT entry,
this fails in HV KVM if it already has this mapping.
This preserves WIMG bits between kvmppc_mmu_book3s_64_xlate() and
kvmppc_mmu_map_page().
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/sparc/lib')
0 files changed, 0 insertions, 0 deletions
