On Tue, Jul 14, 2020 at 12:42:11PM -0700, Dave Hansen wrote:
> On 7/14/20 12:29 PM, Peter Zijlstra wrote:
> > On Tue, Jul 14, 2020 at 12:06:16PM -0700, Ira Weiny wrote:
> >> On Tue, Jul 14, 2020 at 10:44:51AM +0200, Peter Zijlstra wrote:
> >>> So, if I followed along correctly, you're proposing to
On Tue, Jul 14, 2020 at 12:42:11PM -0700, Dave Hansen wrote:
> On 7/14/20 12:29 PM, Peter Zijlstra wrote:
> > On Tue, Jul 14, 2020 at 12:06:16PM -0700, Ira Weiny wrote:
> >> On Tue, Jul 14, 2020 at 10:44:51AM +0200, Peter Zijlstra wrote:
> >>> So, if I followed along correctly, you're proposing to
On 7/14/20 12:29 PM, Peter Zijlstra wrote:
> On Tue, Jul 14, 2020 at 12:06:16PM -0700, Ira Weiny wrote:
>> On Tue, Jul 14, 2020 at 10:44:51AM +0200, Peter Zijlstra wrote:
>>> So, if I followed along correctly, you're proposing to do a WRMSR per
>>> k{,un}map{_atomic}(), sounds like excellent
On Tue, Jul 14, 2020 at 12:06:16PM -0700, Ira Weiny wrote:
> On Tue, Jul 14, 2020 at 10:44:51AM +0200, Peter Zijlstra wrote:
> > So, if I followed along correctly, you're proposing to do a WRMSR per
> > k{,un}map{_atomic}(), sounds like excellent performance all-round :-(
>
> Only to pages which
On Tue, Jul 14, 2020 at 10:44:51AM +0200, Peter Zijlstra wrote:
> On Tue, Jul 14, 2020 at 12:02:17AM -0700, ira.we...@intel.com wrote:
> > From: Ira Weiny
> >
> > Device managed pages may have additional protections. These protections
> > need to be removed prior to valid use by kernel users.
>
On Tue, Jul 14, 2020 at 12:02:17AM -0700, ira.we...@intel.com wrote:
> From: Ira Weiny
>
> Device managed pages may have additional protections. These protections
> need to be removed prior to valid use by kernel users.
>
> Check for special treatment of device managed pages in kmap and take
>
From: Ira Weiny
Device managed pages may have additional protections. These protections
need to be removed prior to valid use by kernel users.
Check for special treatment of device managed pages in kmap and take
action if needed. We use kmap as an interface for generic kernel code
because
7 matches
Mail list logo