Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-09-08 Thread Mike Rapoport
Hi David, On Tue, Sep 08, 2020 at 11:09:19AM +0200, David Hildenbrand wrote: > On 20.08.20 17:52, Mike Rapoport wrote: > > On Wed, Aug 19, 2020 at 07:45:29PM +0200, David Hildenbrand wrote: > >> On 19.08.20 19:33, Mike Rapoport wrote: > >>> On Wed, Aug 19, 2020 at 02:10:43PM +0200, David Hildenbra

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-09-08 Thread David Hildenbrand
On 20.08.20 17:52, Mike Rapoport wrote: > On Wed, Aug 19, 2020 at 07:45:29PM +0200, David Hildenbrand wrote: >> On 19.08.20 19:33, Mike Rapoport wrote: >>> On Wed, Aug 19, 2020 at 02:10:43PM +0200, David Hildenbrand wrote: On 19.08.20 13:53, Mike Rapoport wrote: > On Wed, Aug 19, 2020 at 1

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-20 Thread Mike Rapoport
On Wed, Aug 19, 2020 at 07:45:29PM +0200, David Hildenbrand wrote: > On 19.08.20 19:33, Mike Rapoport wrote: > > On Wed, Aug 19, 2020 at 02:10:43PM +0200, David Hildenbrand wrote: > >> On 19.08.20 13:53, Mike Rapoport wrote: > >>> On Wed, Aug 19, 2020 at 12:49:05PM +0200, David Hildenbrand wrote: >

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-19 Thread David Hildenbrand
On 19.08.20 19:33, Mike Rapoport wrote: > On Wed, Aug 19, 2020 at 02:10:43PM +0200, David Hildenbrand wrote: >> On 19.08.20 13:53, Mike Rapoport wrote: >>> On Wed, Aug 19, 2020 at 12:49:05PM +0200, David Hildenbrand wrote: On 18.08.20 16:15, Mike Rapoport wrote: > From: Mike Rapoport

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-19 Thread Mike Rapoport
On Wed, Aug 19, 2020 at 02:10:43PM +0200, David Hildenbrand wrote: > On 19.08.20 13:53, Mike Rapoport wrote: > > On Wed, Aug 19, 2020 at 12:49:05PM +0200, David Hildenbrand wrote: > >> On 18.08.20 16:15, Mike Rapoport wrote: > >>> From: Mike Rapoport > >>> > >>> Taking pages out from the direct ma

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-19 Thread David Hildenbrand
On 19.08.20 13:53, Mike Rapoport wrote: > On Wed, Aug 19, 2020 at 12:49:05PM +0200, David Hildenbrand wrote: >> On 18.08.20 16:15, Mike Rapoport wrote: >>> From: Mike Rapoport >>> >>> Taking pages out from the direct map and bringing them back may create >>> undesired fragmentation and usage of th

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-19 Thread Mike Rapoport
On Wed, Aug 19, 2020 at 12:49:05PM +0200, David Hildenbrand wrote: > On 18.08.20 16:15, Mike Rapoport wrote: > > From: Mike Rapoport > > > > Taking pages out from the direct map and bringing them back may create > > undesired fragmentation and usage of the smaller pages in the direct > > mapping

Re: [PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-19 Thread David Hildenbrand
On 18.08.20 16:15, Mike Rapoport wrote: > From: Mike Rapoport > > Taking pages out from the direct map and bringing them back may create > undesired fragmentation and usage of the smaller pages in the direct > mapping of the physical memory. > > This can be avoided if a significantly large area

[PATCH v4 6/6] mm: secretmem: add ability to reserve memory at boot

2020-08-18 Thread Mike Rapoport
From: Mike Rapoport Taking pages out from the direct map and bringing them back may create undesired fragmentation and usage of the smaller pages in the direct mapping of the physical memory. This can be avoided if a significantly large area of the physical memory would be reserved for secretmem