KVM: PPC: Book3S HV: Fix H_REGISTER_VPA VPA size validation

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KVM currently validates the size of the VPA registered by the client
against sizeof(struct lppaca), however we align (and therefore size)
that struct to 1kB to avoid crossing a 4kB boundary in the client.

PAPR calls for sizes >= 640 bytes to be accepted. Hard code this with
a comment.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

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Nicholas Piggin 2017-08-13 11:33:38 +10:00 • committed by Paul Mackerras

parent d182b8fd60

commit eaac112eac

1 changed files with 7 additions and 1 deletions

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arch/powerpc/kvm/book3s_hv.c

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