Displaying 14 results from an estimated 14 matches for "cirjaliu".
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mcirjaliu
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...
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...
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 Aug 13
0
[RFC PATCH v6 75/92] kvm: x86: disable gpa_available optimization in emulator_read_write_onepage()
...able = true;
>> vcpu->arch.gpa_val = cr2;
>> }
>
> Sure, but I think we'll have to extend the check.
>
> Searching the logs I've found:
>
> kvm/x86: re-translate broken translation that caused EPT violation
>
> Signed-off-by: Mircea Cirjaliu <mcirjaliu at bitdefender.com>
>
> arch/x86/kvm/x86.c | 1 +
> 1 file changed, 1 insertion(+)
>
> /home/b/kvmi at 9cad844~1/arch/x86/kvm/x86.c:4757,4762 - /home/b/kvmi at 9cad844/arch/x86/kvm/x86.c:4757,4763
> */
> if (vcpu->arch.gpa_available &&
>...
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 pr...
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()...
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 o...
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...
2019 Aug 13
1
[RFC PATCH v6 75/92] kvm: x86: disable gpa_available optimization in emulator_read_write_onepage()
On 09/08/19 18:00, Adalbert Laz?r wrote:
> If the EPT violation was caused by an execute restriction imposed by the
> introspection tool, gpa_available will point to the instruction pointer,
> not the to the read/write location that has to be used to emulate the
> current instruction.
>
> This optimization should be disabled only when the VM is introspected,
> not just
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:
> > >...
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 *pag...
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place