Re: [Xen-devel] [PATCH v2 10/19] x86/hvm: Reposition the modification of raw segment data from the VMCB/VMCS

2016-11-28 Thread Boris Ostrovsky
On 11/28/2016 06:13 AM, Andrew Cooper wrote: > Intel VT-x and AMD SVM provide access to the full segment descriptor cache via > fields in the VMCB/VMCS. However, the bits which are actually checked by > hardware and preserved across vmentry/exit are inconsistent, and the vendor > accessor

[Xen-devel] [PATCH v2 10/19] x86/hvm: Reposition the modification of raw segment data from the VMCB/VMCS

2016-11-28 Thread Andrew Cooper
Intel VT-x and AMD SVM provide access to the full segment descriptor cache via fields in the VMCB/VMCS. However, the bits which are actually checked by hardware and preserved across vmentry/exit are inconsistent, and the vendor accessor functions perform inconsistent modification to the raw