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Date: Tue, 10 May 2022 20:15:45 -0700 From: Kees Cook <keescook@...omium.org> To: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com> Cc: "Weiny, Ira" <ira.weiny@...el.com>, "hpa@...or.com" <hpa@...or.com>, "Williams, Dan J" <dan.j.williams@...el.com>, "Shankar, Ravi V" <ravi.v.shankar@...el.com>, "Yu, Fenghua" <fenghua.yu@...el.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>, "linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org> Subject: Re: [PATCH V10 14/44] mm/pkeys: Introduce pks_set_readwrite() On Tue, May 10, 2022 at 10:26:43PM +0000, Edgecombe, Rick P wrote: > v2: > https://lore.kernel.org/lkml/20210830235927.6443-1-rick.p.edgecombe@intel.com/#r > > Mostly it fit together pretty easily, but there was memory overhead > required to protect the page tables that map the direct map fully > (unless a better solution can be found). Oh my, I totally missed this. Yay for Too Much Email Every Day. ;) I'll give this a read; thanks for working on it! Also, can you speak to the schedule of availability for PKS? -- Kees Cook
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