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assist MSR handling code.
We don't say we that handle that MSR but Windows assumes it. In
Windows 7 it just wrote to the MSR and we used to handle that
ok. Windows 8 also reads from the MSR so we need to keep a record of
the contents.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
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Use a 64bit value instead of extracting/merging two 32bit values.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
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A minimal implementation of the Viridian (Hyper-V) guest
interface. The only enlightenments advertised and supported are vAPIC
MSRs and long-spin-wait notifications. The set of enlightenments can
easily be extended in future, as they are found to provide a
performance win, and configured via an extended HVM_PARAM_VIRIDIAN hvm
parameter.
Signed-off-by: Peter Johnston <peter.johnston@citrix.com>
Signed-off-by: Tim Deegan <tim.deegan@citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
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