Re: [Xen-devel] [PATCH v6 2/3] Differentiate IO/mem resources tracked by ioreq server

2015-08-20 Thread Yu, Zhang
On 8/20/2015 12:16 AM, Paul Durrant wrote: -Original Message- From: Yu Zhang [mailto:yu.c.zh...@linux.intel.com] Sent: 19 August 2015 02:16 To: xen-devel@lists.xen.org; Paul Durrant; Ian Jackson; Stefano Stabellini; Ian Campbell; Wei Liu; Keir (Xen.org); jbeul...@suse.com; Andrew Cooper

Re: [Xen-devel] [PATCH v6 2/3] Differentiate IO/mem resources tracked by ioreq server

2015-08-19 Thread Paul Durrant
> -Original Message- > From: Yu Zhang [mailto:yu.c.zh...@linux.intel.com] > Sent: 19 August 2015 02:16 > To: xen-devel@lists.xen.org; Paul Durrant; Ian Jackson; Stefano Stabellini; > Ian > Campbell; Wei Liu; Keir (Xen.org); jbeul...@suse.com; Andrew Cooper > Cc: Kevin Tian; zhiyuan...@inte

[Xen-devel] [PATCH v6 2/3] Differentiate IO/mem resources tracked by ioreq server

2015-08-19 Thread Yu Zhang
Currently in ioreq server, guest write-protected ram pages are tracked in the same rangeset with device mmio resources. Yet unlike device mmio, which can be in big chunks, the guest write- protected pages may be discrete ranges with 4K bytes each. This patch uses a seperate rangeset for the guest