[Xen-devel][PATCH 02/02] VMX: Add HVM RDTSCP support

["Xu, Dongxiao" <dongxiao.xu@xxxxxxxxx>]

Add RDTSCP instruction support for HVM VMX guest.
 - RDTSCP is introduced in Nehalem processor on Intel platform. Like RDTSC,
RDTSCP will return the TSC value, besides, it will return the low 32bit of
TSC_AUX MSR. Currently Linux kernel will write (node_id << 12 | process_id)
into that MSR, so that when guest execs RDTSCP, it will also get processor
information.
 - This instruction is supported for HVM only when the hardware has this
capability (indicated by cpuid).

Signed-off-by: Dongxiao Xu <dongxiao.xu@xxxxxxxxx>

Attachment: 02-add-hvm-rdtscp-support.patch
Description: 02-add-hvm-rdtscp-support.patch

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