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KVM: SVM: Remove port 80 passthrough
authorAvi Kivity <avi@redhat.com>
Mon, 11 May 2009 11:21:10 +0000 (14:21 +0300)
committerAvi Kivity <avi@redhat.com>
Mon, 11 May 2009 11:40:51 +0000 (14:40 +0300)
commit99f85a28a78e96d28907fe036e1671a218fee597
tree7d24df5b4d27d6801b1c372297adffb2334d9a97tree | snapshot
parente286e86e6d2042d67d09244aa0e05ffef75c9d54commit | diff
KVM: SVM: Remove port 80 passthrough

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.

Cc: stable@kernel.org
Reported-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Tested-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/svm.c diff | blob | history
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