Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-10-22 Thread Yang Weijiang
On Fri, Oct 11, 2019 at 09:11:54AM -0700, Jim Mattson wrote: > On Fri, Oct 11, 2019 at 12:48 AM Yang Weijiang > wrote: > > > > On Thu, Oct 10, 2019 at 02:42:51PM -0700, Jim Mattson wrote: > > > On Tue, Sep 17, 2019 at 1:52 AM Yang Weijiang > > > wrote: > > > > > > > > EPT-Based Sub-Page write

Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-10-11 Thread Jim Mattson
On Fri, Oct 11, 2019 at 12:48 AM Yang Weijiang wrote: > > On Thu, Oct 10, 2019 at 02:42:51PM -0700, Jim Mattson wrote: > > On Tue, Sep 17, 2019 at 1:52 AM Yang Weijiang > > wrote: > > > > > > EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows > > > Virtual Machine

Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-10-11 Thread Yang Weijiang
On Thu, Oct 10, 2019 at 02:42:51PM -0700, Jim Mattson wrote: > On Tue, Sep 17, 2019 at 1:52 AM Yang Weijiang wrote: > > > > EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows > > Virtual Machine Monitor(VMM) to specify write-permission for guest > > physical memory at a

Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-10-10 Thread Jim Mattson
On Tue, Sep 17, 2019 at 1:52 AM Yang Weijiang wrote: > > EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows > Virtual Machine Monitor(VMM) to specify write-permission for guest > physical memory at a sub-page(128 byte) granularity. When this > capability is enabled, the CPU

Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-10-08 Thread Yang Weijiang
On Tue, Sep 17, 2019 at 04:52:55PM +0800, Yang, Weijiang wrote: Hi, Paolo, Could you review this v5 patch at your convenience? Thanks a lot! > EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows > Virtual Machine Monitor(VMM) to specify write-permission for guest > physical

Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-09-17 Thread Adalbert Lazăr
On Tue, 17 Sep 2019 08:59:04 -0400, Konrad Rzeszutek Wilk wrote: > On Tue, Sep 17, 2019 at 04:52:55PM +0800, Yang Weijiang wrote: > > EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows > > Virtual Machine Monitor(VMM) to specify write-permission for guest > > physical memory

Re: [PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-09-17 Thread Konrad Rzeszutek Wilk
On Tue, Sep 17, 2019 at 04:52:55PM +0800, Yang Weijiang wrote: > EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows > Virtual Machine Monitor(VMM) to specify write-permission for guest > physical memory at a sub-page(128 byte) granularity. When this > capability is enabled,

[PATCH v5 0/9] Enable Sub-page Write Protection Support

2019-09-17 Thread Yang Weijiang
EPT-Based Sub-Page write Protection(SPP)is a HW capability which allows Virtual Machine Monitor(VMM) to specify write-permission for guest physical memory at a sub-page(128 byte) granularity. When this capability is enabled, the CPU enforces write-access check for sub-pages within a 4KB page. The