Re: [Xen-devel] [PATCH] x86/svm: Drop the suggestion of Long Mode Segment Limit support

2018-07-24 Thread Roger Pau Monné
On Mon, Jul 23, 2018 at 03:42:37PM +0100, Andrew Cooper wrote: > Because of a bug in 2010, LMSL support didn't functioned in Xen. > > c/s f2c608444 noticed but avoided fixing the issue for migration reasons. In > addition to migration problems, changes to the segmentation logic for > emulation

Re: [Xen-devel] [PATCH] x86/svm: Drop the suggestion of Long Mode Segment Limit support

2018-07-24 Thread Wei Liu
On Mon, Jul 23, 2018 at 03:42:37PM +0100, Andrew Cooper wrote: > Because of a bug in 2010, LMSL support didn't functioned in Xen. > > c/s f2c608444 noticed but avoided fixing the issue for migration reasons. In > addition to migration problems, changes to the segmentation logic for > emulation

Re: [Xen-devel] [PATCH] x86/svm: Drop the suggestion of Long Mode Segment Limit support

2018-07-24 Thread Jan Beulich
>>> On 23.07.18 at 16:42, wrote: > Because of a bug in 2010, LMSL support didn't functioned in Xen. > > c/s f2c608444 noticed but avoided fixing the issue for migration reasons. In > addition to migration problems, changes to the segmentation logic for > emulation would be needed before the

Re: [Xen-devel] [PATCH] x86/svm: Drop the suggestion of Long Mode Segment Limit support

2018-07-23 Thread Boris Ostrovsky
On 07/23/2018 06:02 PM, Boris Ostrovsky wrote: > On 07/23/2018 10:42 AM, Andrew Cooper wrote: >> Because of a bug in 2010, LMSL support didn't functioned in Xen. >> >> c/s f2c608444 noticed but avoided fixing the issue for migration reasons. In >> addition to migration problems, changes to the

Re: [Xen-devel] [PATCH] x86/svm: Drop the suggestion of Long Mode Segment Limit support

2018-07-23 Thread Boris Ostrovsky
On 07/23/2018 10:42 AM, Andrew Cooper wrote: > Because of a bug in 2010, LMSL support didn't functioned in Xen. > > c/s f2c608444 noticed but avoided fixing the issue for migration reasons. In > addition to migration problems, changes to the segmentation logic for > emulation would be needed

[Xen-devel] [PATCH] x86/svm: Drop the suggestion of Long Mode Segment Limit support

2018-07-23 Thread Andrew Cooper
Because of a bug in 2010, LMSL support didn't functioned in Xen. c/s f2c608444 noticed but avoided fixing the issue for migration reasons. In addition to migration problems, changes to the segmentation logic for emulation would be needed before the feature could be enabled. This feature is