On Tue, Feb 5, 2019 at 2:52 PM Alistair Popple wrote:
>
> On Thursday, 31 January 2019 12:11:06 PM AEDT Andrea Arcangeli wrote:
> > On Thu, Jan 31, 2019 at 06:30:22PM +0800, Peter Xu wrote:
> > > The change_pte() notifier was designed to use as a quick path to
> > > update secondary MMU PTEs on wr
On Thursday, 31 January 2019 12:11:06 PM AEDT Andrea Arcangeli wrote:
> On Thu, Jan 31, 2019 at 06:30:22PM +0800, Peter Xu wrote:
> > The change_pte() notifier was designed to use as a quick path to
> > update secondary MMU PTEs on write permission changes or PFN changes.
> > For KVM, it could redu
On Thu, Jan 31, 2019 at 06:30:22PM +0800, Peter Xu wrote:
> The change_pte() notifier was designed to use as a quick path to
> update secondary MMU PTEs on write permission changes or PFN changes.
> For KVM, it could reduce the vm-exits when vcpu faults on the pages
> that was touched up by KSM. I
The change_pte() notifier was designed to use as a quick path to
update secondary MMU PTEs on write permission changes or PFN changes.
For KVM, it could reduce the vm-exits when vcpu faults on the pages
that was touched up by KSM. It's not used to do cache invalidations,
for example, if we see the
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