KVM: MMU: Make gfn_to_page() always safe

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In case the page is not present in the guest memory map, return a dummy
page the guest can scribble on.

This simplifies error checking in its users.

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

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Izik Eidus 2007-10-17 19:17:48 +02:00 • committed by Avi Kivity

parent 9647c14c98

commit cea7bb2128

4 changed files with 23 additions and 29 deletions

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3

drivers/kvm/kvm.h

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26

drivers/kvm/kvm_main.c

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16

drivers/kvm/mmu.c

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7

drivers/kvm/paging_tmpl.h

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