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kvm/powerpc: Add new ioctl to retreive server MMU infos

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This is necessary for qemu to be able to pass the right information
to the guest, such as the supported page sizes and corresponding
encodings in the SLB and hash table, which can vary depending
on the processor type, the type of KVM used (PR vs HV) and the
version of KVM

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[agraf: fix compilation on hv, adjust for newer ioctl numbers]
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Benjamin Herrenschmidt
2012-04-26 19:43:42 +00:00
committed by Alexander Graf
parent f31e65e117
commit 5b74716eba
7 changed files with 177 additions and 1 deletions
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4
arch/powerpc/kernel/ppc_ksyms.c
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@@ -190,3 +190,7 @@ EXPORT_SYMBOL(__arch_hweight16);
EXPORT_SYMBOL(__arch_hweight32);
EXPORT_SYMBOL(__arch_hweight64);
#endif
#ifdef CONFIG_PPC_BOOK3S_64
EXPORT_SYMBOL_GPL(mmu_psize_defs);
#endif