Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1389594
| From | "Rafael J. Wysocki" <rjw@rjwysocki.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2] ACPI/SRAT: fix SRAT order parsing when both LAPIC and X2APIC present |
| Date | 2016-04-27 23:30 +0200 |
| Message-ID | <rsFbY-8m2-7@gated-at.bofh.it> (permalink) |
| References | <rqalY-8hU-9@gated-at.bofh.it> <rqj5T-6Uw-3@gated-at.bofh.it> <rqj5T-6Uw-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thursday, April 21, 2016 11:29:00 AM Lukasz Anaczkowski wrote: > SRAT maps APIC ID to proximity domains ids (PXM). Mapping from PXM to > NUMA node ids is based on order of entries in SRAT table. > SRAT table has just LAPIC entires or mix of LAPIC and X2APIC entries. > As long as there are only LAPIC entires, mapping from proximity domain > id to NUMA node id is as assumed by BIOS. However, once APIC entries are > mixed, X2APIC entries would be first mapped which causes unexpected NUMA > node mapping. > To fix that, change parsing to check each entry against both LAPIC and > X2APIC so mapping is in the SRAT/PXM order. > This is supplemental change to the fix made by d81056b5278 (thus > "Fixes:" tag) and using same mechanism introduced by 9b3fedd (ACPI / tables: > Add acpi_subtable_proc to ACPI table parsers). > > Fixes: d81056b5278 (Handle apic/x2apic entries in MADT in correct order) > Signed-off-by: Lukasz Anaczkowski <lukasz.anaczkowski@intel.com> Applied, thanks!
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: [PATCH] ACPI/SRAT: fix SRAT order parsing when both LAPIC and X2APIC present "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-04-21 02:10 +0200
[PATCH v2] ACPI/SRAT: fix SRAT order parsing when both LAPIC and X2APIC present Lukasz Anaczkowski <lukasz.anaczkowski@intel.com> - 2016-04-21 11:30 +0200
Re: [PATCH v2] ACPI/SRAT: fix SRAT order parsing when both LAPIC and X2APIC present "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-04-27 23:30 +0200
Re: [PATCH] ACPI/SRAT: fix SRAT order parsing when both LAPIC and X2APIC present Lukasz Anaczkowski <lukasz.anaczkowski@intel.com> - 2016-04-21 11:30 +0200
csiph-web