[Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-02-14 Thread Souptick Joarder
Convert to use vm_map_pages() to map range of kernel memory to user vma. map->count is passed to vm_map_pages() and internal API verify map->count against count ( count = vma_pages(vma)) for page array boundary overrun condition. Signed-off-by: Souptick Joarder Reviewed-by: Boris Ostrovsky ---

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-28 Thread Marek Marczykowski-Górecki
On Fri, Feb 15, 2019 at 08:18:31AM +0530, Souptick Joarder wrote: > Convert to use vm_map_pages() to map range of kernel > memory to user vma. > > map->count is passed to vm_map_pages() and internal API > verify map->count against count ( count = vma_pages(vma)) > for page array boundary overrun c

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-29 Thread Souptick Joarder
On Sun, Jul 28, 2019 at 11:36 PM Marek Marczykowski-Górecki wrote: > > On Fri, Feb 15, 2019 at 08:18:31AM +0530, Souptick Joarder wrote: > > Convert to use vm_map_pages() to map range of kernel > > memory to user vma. > > > > map->count is passed to vm_map_pages() and internal API > > verify map->

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-29 Thread Souptick Joarder
On Mon, Jul 29, 2019 at 1:35 PM Souptick Joarder wrote: > > On Sun, Jul 28, 2019 at 11:36 PM Marek Marczykowski-Górecki > wrote: > > > > On Fri, Feb 15, 2019 at 08:18:31AM +0530, Souptick Joarder wrote: > > > Convert to use vm_map_pages() to map range of kernel > > > memory to user vma. > > > > >

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-29 Thread Marek Marczykowski-Górecki
On Mon, Jul 29, 2019 at 02:02:54PM +0530, Souptick Joarder wrote: > On Mon, Jul 29, 2019 at 1:35 PM Souptick Joarder wrote: > > > > On Sun, Jul 28, 2019 at 11:36 PM Marek Marczykowski-Górecki > > wrote: > > > > > > On Fri, Feb 15, 2019 at 08:18:31AM +0530, Souptick Joarder wrote: > > > > Convert

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-29 Thread Souptick Joarder
On Mon, Jul 29, 2019 at 7:06 PM Marek Marczykowski-Górecki wrote: > > On Mon, Jul 29, 2019 at 02:02:54PM +0530, Souptick Joarder wrote: > > On Mon, Jul 29, 2019 at 1:35 PM Souptick Joarder > > wrote: > > > > > > On Sun, Jul 28, 2019 at 11:36 PM Marek Marczykowski-Górecki > > > wrote: > > > > >

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-30 Thread Boris Ostrovsky
On 7/30/19 2:03 AM, Souptick Joarder wrote: > On Mon, Jul 29, 2019 at 7:06 PM Marek Marczykowski-Górecki > wrote: >> On Mon, Jul 29, 2019 at 02:02:54PM +0530, Souptick Joarder wrote: >>> On Mon, Jul 29, 2019 at 1:35 PM Souptick Joarder >>> wrote: On Sun, Jul 28, 2019 at 11:36 PM Marek Marcz

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-30 Thread Marek Marczykowski-Górecki
On Tue, Jul 30, 2019 at 10:05:42AM -0400, Boris Ostrovsky wrote: > On 7/30/19 2:03 AM, Souptick Joarder wrote: > > On Mon, Jul 29, 2019 at 7:06 PM Marek Marczykowski-Górecki > > wrote: > >> On Mon, Jul 29, 2019 at 02:02:54PM +0530, Souptick Joarder wrote: > >>> On Mon, Jul 29, 2019 at 1:35 PM Soup

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-30 Thread Souptick Joarder
On Tue, Jul 30, 2019 at 7:52 PM Marek Marczykowski-Górecki wrote: > > On Tue, Jul 30, 2019 at 10:05:42AM -0400, Boris Ostrovsky wrote: > > On 7/30/19 2:03 AM, Souptick Joarder wrote: > > > On Mon, Jul 29, 2019 at 7:06 PM Marek Marczykowski-Górecki > > > wrote: > > >> On Mon, Jul 29, 2019 at 02:02

Re: [Xen-devel] [PATCH v4 8/9] xen/gntdev.c: Convert to use vm_map_pages()

2019-07-30 Thread Marek Marczykowski-Górecki
On Tue, Jul 30, 2019 at 08:22:02PM +0530, Souptick Joarder wrote: > On Tue, Jul 30, 2019 at 7:52 PM Marek Marczykowski-Górecki > wrote: > > > > On Tue, Jul 30, 2019 at 10:05:42AM -0400, Boris Ostrovsky wrote: > > > On 7/30/19 2:03 AM, Souptick Joarder wrote: > > > > On Mon, Jul 29, 2019 at 7:06 PM