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KVM: ignore reads from AMDs C1E enabled MSR
authorAndre Przywara <andre.przywara@amd.com>
Wed, 24 Jun 2009 10:44:34 +0000 (12:44 +0200)
committerAvi Kivity <avi@redhat.com>
Thu, 10 Sep 2009 05:33:03 +0000 (08:33 +0300)
commit1fdbd48c242db996107f72ae4140ffe8163e26a8
tree39180cfe8ba8268d7c67713446d78f1e19dfd5b0tree | snapshot (tar.gz zip)
parent8f1589d95e5eab1ed287f217a33656e922cdbdd0commit | diff
KVM: ignore reads from AMDs C1E enabled MSR

If the Linux kernel detects an C1E capable AMD processor (K8 RevF and
higher), it will access a certain MSR on every attempt to go to halt.
Explicitly handle this read and return 0 to let KVM run a Linux guest
with the native AMD host CPU propagated to the guest.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/x86.c diff | blob | blame | history