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Groups > linux.kernel > #1538684
| From | Dave Hansen <dave.hansen@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory |
| Date | 2016-12-08 17:30 +0100 |
| Message-ID | <sM9K3-8la-69@gated-at.bofh.it> (permalink) |
| References | <sM8XD-7OE-5@gated-at.bofh.it> <sM97k-7Se-19@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 12/08/2016 08:39 AM, Jérôme Glisse wrote: > Architecture that wish to support un-addressable device memory should make > sure to never populate the kernel linar mapping for the physical range. Does the platform somehow provide a range of physical addresses for this unaddressable area? How do we know no memory will be hot-added in a range we're using for unaddressable device memory, for instance?
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[HMM v14 00/16] HMM (Heterogeneous Memory Management) v14 Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:40 +0100
[HMM v14 12/16] mm/hmm/migrate: add new boolean copy flag to migratepage() callback Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:40 +0100
[HMM v14 01/16] mm/free_hot_cold_page: catch ZONE_DEVICE pages Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 06/16] mm/ZONE_DEVICE/x86: add support for un-addressable device memory Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 03/16] mm/ZONE_DEVICE/devmem_pages_remove: allow early removal of device memory Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 13/16] mm/hmm/migrate: new memory migration helper for use with device memory v2 Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 07/16] mm/hmm: heterogeneous memory management (HMM for short) Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
Re: [HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory Dave Hansen <dave.hansen@intel.com> - 2016-12-08 17:30 +0100
Re: [HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory Jerome Glisse <jglisse@redhat.com> - 2016-12-08 17:50 +0100
Re: [HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory Dave Hansen <dave.hansen@intel.com> - 2016-12-08 21:10 +0100
Re: [HMM v14 05/16] mm/ZONE_DEVICE/unaddressable: add support for un-addressable device memory Jerome Glisse <jglisse@redhat.com> - 2016-12-08 21:40 +0100
[HMM v14 02/16] mm/memory/hotplug: convert device bool to int to allow for more flags v2 Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 16/16] mm/hmm/devmem: dummy HMM device as an helper for ZONE_DEVICE memory Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 04/16] mm/ZONE_DEVICE/free-page: callback when page is freed Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 15/16] mm/hmm/devmem: device driver helper to hotplug ZONE_DEVICE memory Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 10/16] mm/hmm/mirror: device page fault handler Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 08/16] mm/hmm/mirror: mirror process address space on device with HMM helpers Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 14/16] mm/hmm/migrate: optimize page map once in vma being migrated Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
[HMM v14 09/16] mm/hmm/mirror: helper to snapshot CPU page table Jérôme Glisse <jglisse@redhat.com> - 2016-12-08 16:50 +0100
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