Re: [Xen-devel] [PATCHv6 1/2] x86/ept: invalidate guest physical mappings on VMENTER

2015-12-19 Thread Tian, Kevin
> From: David Vrabel [mailto:david.vra...@citrix.com] > Sent: Friday, December 18, 2015 9:51 PM > > If a guest allocates a page and the tlbflush_timestamp on the page > indicates that a TLB flush of the previous owner is required, only the > linear and combined mappings are invalidated. The guest

Re: [Xen-devel] [PATCHv6 1/2] x86/ept: invalidate guest physical mappings on VMENTER

2015-12-18 Thread George Dunlap
On 18/12/15 13:50, David Vrabel wrote: > If a guest allocates a page and the tlbflush_timestamp on the page > indicates that a TLB flush of the previous owner is required, only the > linear and combined mappings are invalidated. The guest-physical > mappings are not invalidated. > > This is curre

[Xen-devel] [PATCHv6 1/2] x86/ept: invalidate guest physical mappings on VMENTER

2015-12-18 Thread David Vrabel
If a guest allocates a page and the tlbflush_timestamp on the page indicates that a TLB flush of the previous owner is required, only the linear and combined mappings are invalidated. The guest-physical mappings are not invalidated. This is currently safe because the EPT code ensures that the gue