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Groups > linux.kernel > #1736274
| From | Dave Hansen <dave.hansen@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) |
| Date | 2017-09-21 02:10 +0200 |
| Message-ID | <urXe1-1JW-7@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <uoOqB-7dv-5@gated-at.bofh.it> <uoUw2-2qj-9@gated-at.bofh.it> <uoXWW-4LY-3@gated-at.bofh.it> <urWUG-1nO-9@gated-at.bofh.it> <urXe1-1JW-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 09/20/2017 05:02 PM, Tycho Andersen wrote: > ...and makes it easier to pair tlb flushes with changing the > protections. I guess we still need the for loop, because we need to > set/unset the xpfo bits as necessary, but I'll switch it to a single > set_kpte(). This also implies that the xpfo bits should all be the > same on every page in the mapping, which I think is true. FWIW, it's a bit bonkers to keep all this duplicate xpfo metadata for compound pages. You could probably get away with only keeping it for the head page.
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Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Yisheng Xie <xieyisheng1@huawei.com> - 2017-09-11 09:30 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Tycho Andersen <tycho@docker.com> - 2017-09-11 17:00 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Juerg Haefliger <juerg.haefliger@canonical.com> - 2017-09-11 18:10 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Tycho Andersen <tycho@docker.com> - 2017-09-11 19:00 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Yisheng Xie <xieyisheng1@huawei.com> - 2017-09-12 10:10 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Tycho Andersen <tycho@docker.com> - 2017-09-12 16:40 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Tycho Andersen <tycho@docker.com> - 2017-09-12 20:20 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Yisheng Xie <xieyisheng1@huawei.com> - 2017-09-14 08:20 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Dave Hansen <dave.hansen@intel.com> - 2017-09-21 01:50 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Dave Hansen <dave.hansen@intel.com> - 2017-09-21 02:10 +0200
Re: [PATCH v6 03/11] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Tycho Andersen <tycho@docker.com> - 2017-09-21 02:10 +0200
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