KVM: PPC: Book3S HV: Add a debugfs file to dump radix mappings

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This adds a file called 'radix' in the debugfs directory for the
guest, which when read gives all of the valid leaf PTEs in the
partition-scoped radix tree for a radix guest, in human-readable
format.  It is analogous to the existing 'htab' file which dumps
the HPT entries for a HPT guest.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Paul Mackerras 2018-10-08 16:30:57 +11:00 • committed by Michael Ellerman

parent 32eb150aee

commit 9a94d3ee2d

4 changed files with 183 additions and 0 deletions

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1

arch/powerpc/include/asm/kvm_book3s_64.h

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1

arch/powerpc/include/asm/kvm_host.h

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179

arch/powerpc/kvm/book3s_64_mmu_radix.c

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2

arch/powerpc/kvm/book3s_hv.c

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