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[Xen-devel][PATCH]Fix a shadow error with L*_DISALLOW_MASK for HVM 64bit guest

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Xin, Xiaohui" <xiaohui.xin@xxxxxxxxx>
  • Date: Thu, 31 Aug 2006 16:03:29 +0800
  • Delivery-date: Thu, 31 Aug 2006 01:05:47 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcbM0/F7zv0hsJ1+QLe260GyDHZ3gg==
  • Thread-topic: [Xen-devel][PATCH]Fix a shadow error with L*_DISALLOW_MASK for HVM 64bit guest

This patch fixes a shadow error. For 64bit guest, the [62:52] bits of PML4 4 levels page table entries is software available.

But the L*_DISALLOW_MASK forbids to generate this kind of shadow page table entries.

 

Signed-off-by: Xiaohui Xin <xiaohui.xin@xxxxxxxxx>

Attachment: disallow.diff
Description: disallow.diff

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