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[Xen-devel] [SVM][PATCH] Add test for SVM Disabled via BIOS

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "Woller, Thomas" <thomas.woller@xxxxxxx>
  • Date: Mon, 9 Oct 2006 16:25:36 -0500
  • Delivery-date: Mon, 09 Oct 2006 14:26:07 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acbr6XXhy02v56FgQHGkVa7CShdGVg==
  • Thread-topic: [SVM][PATCH] Add test for SVM Disabled via BIOS

Newer BIOS implementations will be able to disable the SVM feature,
although an additional test of an MSR  (VMCR 0xC0010114 bit 4) is
necessary (set equals disabled).  Bit 4 of MSR 0xc0010114 returns 0 (SVM
enabled) on machines with older BIOS' without the SVM disable feature

Applies cleanly to 11730.

Signed-off-by: Wei Huang <wei.huang2@xxxxxxx> 
Signed-off-by: Tom Woller <thomas.woller@xxxxxxx> 

Know that it is very late for 3.0.3, would be good to have this code in
3.0.3-rcN if possible.
Please apply to xen-unstable.hg
Please apply to xen-3.0.3-testing


Attachment: svm-detect-svm-with-vmcr.patch
Description: svm-detect-svm-with-vmcr.patch

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