[Xen-devel] [HVM][PATCH] Prompt users a proper warning if HVM feature disabled in BIOS

["Huang2, Wei" <Wei.Huang2@xxxxxxx>]

Current Xen prompts a warning message, saying that machine is not a
"hvm-capable" platform if it can not detect "hvm" in xen_caps. This
warning is misleading, especially when CPU is actually hvm-capable but
the feature was disabled in BIOS. This patch detects whether CPU is
hvm-capable during boot and uses this variable to prompt correct warning
message when users try to boot hvm guests.


Tested on the following configurations:
  AMD's AMD-V processor: 32-bit and 64-bit
  Intel's VT processor: 32-bit and 64-bit

Applies cleanly to 11677. Please apply to xen-unstable.hg

Signed-off-by: Wei Huang <wei.huang2@xxxxxxx> 


Thanks

-Wei

Attachment: hvm-bios-disable-warning.patch
Description: hvm-bios-disable-warning.patch

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