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Message-ID: <56743AD3.2070108@linux.intel.com> Date: Fri, 18 Dec 2015 08:56:51 -0800 From: Dave Hansen <dave.hansen@...ux.intel.com> To: Andy Lutomirski <luto@...capital.net>, "H. Peter Anvin" <hpa@...or.com> Cc: Oleg Nesterov <oleg@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>, Brian Gerst <brgerst@...il.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Christoph Hellwig <hch@....de> Subject: Re: Rethinking sigcontext's xfeatures slightly for PKRU's benefit? On 12/18/2015 08:04 AM, Andy Lutomirski wrote: > Which reminds me: __get_user, etc all respect PKRU because the SDM > says that PKRU affects all user *and* kernel accesses to user memory > (i.e. anything with _PAGE_USER). Should get_user_pages also respect > PKRU? It does. There are a couple of parts to it, but the most important are in these patches: > http://git.kernel.org/cgit/linux/kernel/git/daveh/x86-pkeys.git/commit/?h=pkeys-v018&id=c64acbe036487d07968ea6a5b9090169d6e40160 > http://git.kernel.org/cgit/linux/kernel/git/daveh/x86-pkeys.git/commit/?h=pkeys-v018&id=331c62eb789f969e187964e28ac80b1e0e26b69d -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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