Or use a PLB

By: nksingh (None.delete@this.none.non), September 27, 2021 8:07 am
Room: Moderated Discussions
Somewhat on topic: I would guess there's some value in having a separate base pointer for global image data versus code. So that data across images could be packed more tightly rather than being interleaved. Though maybe the fdpic linkage model is good enough for that purpose.

Also it seems like it could be valuable to associate some access rights based on code address, like apple did with their arm chips. It looks like they implemented a mini hypervisor in their kernel to hold the privilege of changing PTEs. One could similarly partition access to the global memory map and page cache to separate high privileged code.
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POWER10 SAP SD benchmarkanon22021/09/06 02:36 PM
  POWER10 SAP SD benchmarkDaniel B2021/09/07 01:31 AM
    "Cores" (and SPEC)Rayla2021/09/07 06:51 AM
      "Cores" (and SPEC)anon2021/09/07 02:56 PM
  POWER10 SAP SD benchmarkAnon2021/09/07 02:24 PM
    POWER10 SAP SD benchmarkAnon2021/09/07 02:27 PM
  Virtually tagged L1-cachessr2021/09/08 04:49 AM
    Virtually tagged L1-cachesdmcq2021/09/08 07:22 AM
      Virtually tagged L1-cachessr2021/09/08 07:56 AM
      Virtually tagged L1-cachesHugo Décharnes2021/09/08 07:58 AM
        Virtually tagged L1-cachessr2021/09/08 09:09 AM
          Virtually tagged L1-cachesHugo Décharnes2021/09/08 09:46 AM
            Virtually tagged L1-cachessr2021/09/08 10:35 AM
              Virtually tagged L1-cachesHugo Décharnes2021/09/08 11:23 AM
                Virtually tagged L1-cachessr2021/09/08 11:40 AM
                  Virtually tagged L1-cachesanon2021/09/09 02:16 AM
                    Virtually tagged L1-cachesKonrad Schwarz2021/09/10 04:19 AM
                      Virtually tagged L1-cachesHugo Décharnes2021/09/10 05:59 AM
                        Virtually tagged L1-cachesanon2021/09/14 02:17 AM
                          Virtually tagged L1-cachesdmcq2021/09/14 08:34 AM
                            Or use a PLB (NT)Paul A. Clayton2021/09/14 08:45 AM
                              Or use a PLBLinus Torvalds2021/09/14 02:27 PM
                                Or use a PLBanon2021/09/14 11:15 PM
                                  Or use a PLBMichael S2021/09/15 02:21 AM
                                    Or use a PLBdmcq2021/09/15 02:42 PM
                                      Or use a PLBKonrad Schwarz2021/09/16 03:24 AM
                                        Or use a PLBMichael S2021/09/16 09:13 AM
                                          Or use a PLB---2021/09/16 12:02 PM
                                  PLB referencePaul A. Clayton2021/09/18 01:35 PM
                                    PLB referenceMichael S2021/09/18 03:14 PM
                                      Demand paging/translation orthogonalPaul A. Clayton2021/09/19 06:33 AM
                                        Demand paging/translation orthogonalMichael S2021/09/19 08:10 AM
                                      PLB referenceCarson2021/09/20 09:19 PM
                                    PLB referencesr2021/09/20 05:02 AM
                                      PLB referenceMichael S2021/09/20 06:03 AM
                                        PLB referenceLinus Torvalds2021/09/20 11:10 AM
                                  Or use a PLBsr2021/09/20 03:32 AM
                              Or use a PLBsr2021/09/21 08:36 AM
                                Or use a PLBLinus Torvalds2021/09/21 09:04 AM
                                  Or use a PLBsr2021/09/21 09:48 AM
                                    Or use a PLBLinus Torvalds2021/09/21 12:55 PM
                                      Or use a PLBsr2021/09/22 05:55 AM
                                        Or use a PLBrwessel2021/09/22 06:09 AM
                                        Or use a PLBLinus Torvalds2021/09/22 10:50 AM
                                          Or use a PLBsr2021/09/22 12:00 PM
                                            Or use a PLBdmcq2021/09/22 03:07 PM
                                            Or use a PLBEtienne Lorrain2021/09/23 07:50 AM
                                          Or use a PLBanon22021/09/22 03:09 PM
                                            Or use a PLBdmcq2021/09/23 01:35 AM
                                          Or use a PLB2021/09/23 08:37 AM
                                            Or use a PLBLinus Torvalds2021/09/23 11:01 AM
                                              Or use a PLBgpd2021/09/24 02:59 AM
                                                Or use a PLBLinus Torvalds2021/09/24 09:45 AM
                                                  Or use a PLBdmcq2021/09/24 11:43 AM
                                                  Or use a PLBsr2021/09/25 09:19 AM
                                                    Or use a PLBLinus Torvalds2021/09/25 09:44 AM
                                                      Or use a PLBsr2021/09/25 10:11 AM
                                                        Or use a PLBLinus Torvalds2021/09/25 10:31 AM
                                                          Or use a PLBsr2021/09/25 10:52 AM
                                                            Or use a PLBLinus Torvalds2021/09/25 11:05 AM
                                                              Or use a PLBsr2021/09/25 11:23 AM
                                                                Or use a PLBrwessel2021/09/25 02:29 PM
                                                                  Or use a PLBsr2021/09/30 11:22 PM
                                                                    Or use a PLBrwessel2021/10/01 05:19 AM
                                                                      Or use a PLBDavid Hess2021/10/01 09:35 AM
                                                                        Or use a PLBrwessel2021/10/02 03:47 AM
                                                                      Or use a PLBsr2021/10/02 10:16 AM
                                                                        Or use a PLBrwessel2021/10/02 10:53 AM
                                                          Or use a PLBLinus Torvalds2021/09/25 10:57 AM
                                                            Or use a PLBsr2021/09/25 11:07 AM
                                                              Or use a PLBLinus Torvalds2021/09/25 11:21 AM
                                                                Or use a PLBsr2021/09/25 11:40 AM
                                                                  Or use a PLBnksingh2021/09/27 08:07 AM
                                                          Or use a PLB2021/09/27 08:02 AM
                                                            Or use a PLBLinus Torvalds2021/09/27 09:20 AM
                                                              Or use a PLBLinus Torvalds2021/09/27 11:58 AM
                                                                Or use a PLBdmcq2021/09/28 09:59 AM
                                              Or use a PLBsr2021/09/25 09:34 AM
                                                Or use a PLBrwessel2021/09/25 02:44 PM
                                                  Or use a PLBsr2021/10/01 12:04 AM
                                                    Or use a PLBrwessel2021/10/01 05:33 AM
                                                      I386 segmentation highlightssr2021/10/04 06:53 AM
                                                        I386 segmentation highlightsAdrian2021/10/04 08:53 AM
                                                          I386 segmentation highlightssr2021/10/04 09:19 AM
                                                        I386 segmentation highlightsrwessel2021/10/04 03:57 PM
                                                          I386 segmentation highlightssr2021/10/05 10:16 AM
                                                            I386 segmentation highlightsMichael S2021/10/05 11:27 AM
                                                            I386 segmentation highlightsrwessel2021/10/05 03:20 PM
                                                Or use a PLBJohnG2021/09/25 09:18 PM
                                              Or use a PLB2021/09/27 06:37 AM
                                                Or use a PLBHeikki Kultala2021/09/28 02:53 AM
                                                  Or use a PLBrwessel2021/09/28 06:29 AM
                                        Or use a PLBDavid Hess2021/09/23 05:00 PM
                                          Or use a PLBAdrian2021/09/24 12:21 AM
                                            Or use a PLBdmcq2021/09/25 11:41 AM
                                        Or use a PLBblaine2021/09/26 10:19 PM
                                          Or use a PLBDavid Hess2021/09/27 10:35 AM
                                            Or use a PLBblaine2021/09/27 04:19 PM
                                            Or use a PLBAdrian2021/09/27 09:40 PM
                                              Or use a PLBAdrian2021/09/27 09:59 PM
                                                Or use a PLBdmcq2021/09/28 06:45 AM
                                              Or use a PLBrwessel2021/09/28 06:45 AM
                                              Or use a PLBDavid Hess2021/09/28 11:50 AM
                                                Or use a PLBEtienne Lorrain2021/09/30 12:25 AM
                                                  Or use a PLBDavid Hess2021/10/01 09:40 AM
                                  MMU privilegessr2021/09/21 10:07 AM
                                    MMU privilegesLinus Torvalds2021/09/21 12:49 PM
                            Virtually tagged L1-cachesKonrad Schwarz2021/09/16 03:18 AM
                          Virtually tagged L1-cachesCarson2021/09/16 12:12 PM
                            Virtually tagged L1-cachesanon22021/09/16 04:16 PM
                              Virtually tagged L1-cachesrwessel2021/09/16 05:29 PM
                          Virtually tagged L1-cachessr2021/09/20 03:20 AM
              Virtually tagged L1-caches---2021/09/08 01:28 PM
                Virtually tagged L1-cachesanonymou52021/09/08 07:28 PM
                  Virtually tagged L1-cachesanonymou52021/09/08 07:34 PM
                  Virtually tagged L1-caches---2021/09/09 09:14 AM
                    Virtually tagged L1-cachesanonymou52021/09/09 09:44 PM
                Multi-threading?David Kanter2021/09/09 08:32 PM
                  Multi-threading?---2021/09/10 08:19 AM
                Virtually tagged L1-cachessr2021/09/11 12:19 AM
                Virtually tagged L1-cachessr2021/09/11 12:36 AM
                  Virtually tagged L1-caches---2021/09/11 08:53 AM
                    Virtually tagged L1-cachessr2021/09/11 11:43 PM
                      Virtually tagged L1-cachesLinus Torvalds2021/09/12 10:10 AM
                        Virtually tagged L1-cachessr2021/09/12 10:57 AM
                          Virtually tagged L1-cachesdmcq2021/09/13 07:31 AM
                            Virtually tagged L1-cachessr2021/09/20 03:11 AM
            Virtually tagged L1-cachessr2021/09/11 01:49 AM
      Virtually tagged L1-cachesLinus Torvalds2021/09/08 11:34 AM
        Virtually tagged L1-cachesdmcq2021/09/09 01:46 AM
          Virtually tagged L1-cachesdmcq2021/09/09 01:58 AM
          Virtually tagged L1-cachessr2021/09/11 12:29 AM
            Virtually tagged L1-cachesdmcq2021/09/11 07:59 AM
              Virtually tagged L1-cachessr2021/09/11 11:57 PM
                Virtually tagged L1-cachesdmcq2021/09/12 07:44 AM
                  Virtually tagged L1-cachessr2021/09/12 08:48 AM
                    Virtually tagged L1-cachesdmcq2021/09/12 12:22 PM
                      Virtually tagged L1-cachessr2021/09/20 03:40 AM
    Where do you see this information? (NT)anon22021/09/09 01:45 AM
      Where do you see this information?sr2021/09/11 12:40 AM
        Where do you see this information?anon22021/09/11 12:53 AM
          Where do you see this information?sr2021/09/11 01:08 AM
            Thank you (NT)anon22021/09/11 03:31 PM
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