Displaying 6 results from an estimated 6 matches for "dismatles".
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dismantles
2019 Oct 02
2
DANGER WILL ROBINSON, DANGER
...kvm inspector process which mirror vma from qemu process
> -> inspector process page table
>
> AFAIK the KVM notifier's will clear the kvm guest page table whenever
> necessary (through kvm_mmu_notifier_invalidate_range_start). This is
> what ensure that KVM's dismatles its own mapping, it abides to mmu-
> notifier callbacks. If you did not you would have bugs (at least i
> expect so). Am i wrong here ?
The KVM inspector process is also (or can be) a QEMU that will have to
create its own KVM guest page table.
So if a page in the source VMA is unmapped we w...
2019 Oct 02
2
DANGER WILL ROBINSON, DANGER
...kvm inspector process which mirror vma from qemu process
> -> inspector process page table
>
> AFAIK the KVM notifier's will clear the kvm guest page table whenever
> necessary (through kvm_mmu_notifier_invalidate_range_start). This is
> what ensure that KVM's dismatles its own mapping, it abides to mmu-
> notifier callbacks. If you did not you would have bugs (at least i
> expect so). Am i wrong here ?
The KVM inspector process is also (or can be) a QEMU that will have to
create its own KVM guest page table.
So if a page in the source VMA is unmapped we w...
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
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
2019 Oct 02
0
DANGER WILL ROBINSON, DANGER
...guest page table
- kvm inspector process which mirror vma from qemu process
-> inspector process page table
AFAIK the KVM notifier's will clear the kvm guest page table whenever
necessary (through kvm_mmu_notifier_invalidate_range_start). This is
what ensure that KVM's dismatles its own mapping, it abides to mmu-
notifier callbacks. If you did not you would have bugs (at least i
expect so). Am i wrong here ?
The mirroring kernel driver would also register the notifier against
the quemu process and would also abide to notifier callbacks.
What you want to maintain at all t...
2019 Oct 02
0
DANGER WILL ROBINSON, DANGER
...ch mirror vma from qemu process
> > -> inspector process page table
> >
> > AFAIK the KVM notifier's will clear the kvm guest page table whenever
> > necessary (through kvm_mmu_notifier_invalidate_range_start). This is
> > what ensure that KVM's dismatles its own mapping, it abides to mmu-
> > notifier callbacks. If you did not you would have bugs (at least i
> > expect so). Am i wrong here ?
>
> The KVM inspector process is also (or can be) a QEMU that will have to
> create its own KVM guest page table.
Ok missed that part, t...