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KVM: PPC: Emulate segment fault
authorAlexander Graf <agraf@suse.de>
Thu, 15 Apr 2010 22:11:52 +0000 (00:11 +0200)
committerAvi Kivity <avi@redhat.com>
Mon, 17 May 2010 09:18:45 +0000 (12:18 +0300)
commit61db97cc1e7fce4fd16f72b1350e1728797fa26f
treeceae282bf55a46b8580ec8aad3c7eebe2f9a5f9etree | snapshot (tar.gz zip)
parent97e492558f423d99c51eb934506b7a3d7c64613bcommit | diff
KVM: PPC: Emulate segment fault

Book3S_32 doesn't know about segment faults. It only knows about page faults.
So in order to know that we didn't map a segment, we need to fake segment
faults.

We do this by setting invalid segment registers to an invalid VSID and then
check for that VSID on normal page faults.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/powerpc/kvm/book3s.c diff | blob | blame | history