search for: meliu

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2019 Oct 02
2
DANGER WILL ROBINSON, DANGER
On 02/10/19 21:27, Jerome Glisse wrote: > On Tue, Sep 10, 2019 at 07:49:51AM +0000, Mircea CIRJALIU - MELIU wrote: >>> On 05/09/19 20:09, Jerome Glisse wrote: >>>> Not sure i understand, you are saying that the solution i outline >>>> above does not work ? If so then i think you are wrong, in the above >>>> solution the importing process mmap a device file and...
2019 Oct 02
2
DANGER WILL ROBINSON, DANGER
On 02/10/19 21:27, Jerome Glisse wrote: > On Tue, Sep 10, 2019 at 07:49:51AM +0000, Mircea CIRJALIU - MELIU wrote: >>> On 05/09/19 20:09, Jerome Glisse wrote: >>>> Not sure i understand, you are saying that the solution i outline >>>> above does not work ? If so then i think you are wrong, in the above >>>> solution the importing process mmap a device file and...
2019 Oct 02
5
DANGER WILL ROBINSON, DANGER
On 02/10/19 19:04, Jerome Glisse wrote: > On Wed, Oct 02, 2019 at 06:18:06PM +0200, Paolo Bonzini wrote: >>>> If the mapping of the source VMA changes, mirroring can update the >>>> target VMA via insert_pfn. But what ensures that KVM's MMU notifier >>>> dismantles its own existing page tables (so that they can be recreated >>>> with the new
2019 Oct 02
5
DANGER WILL ROBINSON, DANGER
On 02/10/19 19:04, Jerome Glisse wrote: > On Wed, Oct 02, 2019 at 06:18:06PM +0200, Paolo Bonzini wrote: >>>> If the mapping of the source VMA changes, mirroring can update the >>>> target VMA via insert_pfn. But what ensures that KVM's MMU notifier >>>> dismantles its own existing page tables (so that they can be recreated >>>> with the new
2019 Oct 02
0
DANGER WILL ROBINSON, DANGER
On Wed, Oct 02, 2019 at 03:46:30PM +0200, Paolo Bonzini wrote: > On 02/10/19 21:27, Jerome Glisse wrote: > > On Tue, Sep 10, 2019 at 07:49:51AM +0000, Mircea CIRJALIU - MELIU wrote: > >>> On 05/09/19 20:09, Jerome Glisse wrote: > >>>> Not sure i understand, you are saying that the solution i outline > >>>> above does not work ? If so then i think you are wrong, in the above > >>>> solution the importing process mm...
2019 Oct 03
0
DANGER WILL ROBINSON, DANGER
On Thu, Oct 03, 2019 at 04:42:20PM +0000, Mircea CIRJALIU - MELIU wrote: > > On 03/10/19 17:42, Jerome Glisse wrote: > > > All that is needed is to make sure that vm_normal_page() will see > > > those pte (inside the process that is mirroring the other process) as > > > special which is the case either because insert_pfn() mark th...
2019 Oct 04
0
DANGER WILL ROBINSON, DANGER
On 04/10/19 11:41, Mircea CIRJALIU - MELIU wrote: > I get it so far. I have a patch that does mirroring in a separate VMA. > We create an extra VMA with VM_PFNMAP/VM_MIXEDMAP that mirrors the > source VMA in the other QEMU and is refreshed by the device MMU notifier. So for example on the host you'd have a new ioctl on the kv...
2019 Oct 02
0
DANGER WILL ROBINSON, DANGER
On Tue, Sep 10, 2019 at 07:49:51AM +0000, Mircea CIRJALIU - MELIU wrote: > > On 05/09/19 20:09, Jerome Glisse wrote: > > > Not sure i understand, you are saying that the solution i outline > > > above does not work ? If so then i think you are wrong, in the above > > > solution the importing process mmap a device file and the resu...
2019 Sep 05
0
DANGER WILL ROBINSON, DANGER
On Fri, Aug 23, 2019 at 12:39:21PM +0000, Mircea CIRJALIU - MELIU wrote: > > On Thu, Aug 15, 2019 at 03:19:29PM -0400, Jerome Glisse wrote: > > > On Tue, Aug 13, 2019 at 02:01:35PM +0300, Adalbert Laz?r wrote: > > > > On Fri, 9 Aug 2019 09:24:44 -0700, Matthew Wilcox <willy at infradead.org> > > wrote: > > > > &g...
2019 Aug 09
6
[RFC PATCH v6 71/92] mm: add support for remote mapping
From: Mircea C?rjaliu <mcirjaliu at bitdefender.com> The following two new mm exports are introduced: * mm_remote_map(struct mm_struct *req_mm, unsigned long req_hva, unsigned long map_hva) * mm_remote_unmap(unsigned long map_hva) * mm_remote_reset(void) * rmap_walk_remote(struct page *page, struct rmap_walk_control *rwc) This patch