KVM: SVM: Remove port 80 passthrough
commita6ddabcdf09bf394de04ca5c772129cb8fc6e179
authorAvi Kivity <avi@redhat.com>
Mon, 11 May 2009 11:21:10 +0000 (11 14:21 +0300)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 18 May 2009 23:35:18 +0000 (18 16:35 -0700)
treef7cb1c9a7735749acd30e8393e87f2e70a1c3c2f
parentefee69d7e0f1ddfec97549eee0a8b63750eb67f7
KVM: SVM: Remove port 80 passthrough

commit 99f85a28a78e96d28907fe036e1671a218fee597 upstream.

KVM optimizes guest port 80 accesses by passthing them through to the host.
Some AMD machines die on port 80 writes, allowing the guest to hard-lock the
host.

Remove the port passthrough to avoid the problem.

Reported-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Tested-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
arch/x86/kvm/svm.c