kvm: Handle reads of SandyBridge RAPL PMU MSRs rather than injecting #GP

Linux 3.14 unconditionally reads the RAPL PMU MSRs on boot, without handling
General Protection Faults on reading those MSRs. Rather than injecting a #GP,
which prevents boot, handle the MSRs by returning 0 for their data. Zero was
checked to be safe by code review of the RAPL PMU driver and in discussion
with the original driver author ([email protected]).

Signed-off-by: Venkatesh Srinivas <[email protected]>
Signed-off-by: Jon Cargille <[email protected]>
Reviewed-by: Jim Mattson <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>

0 files changed, 0 insertions, 0 deletions