On Sun, Mar 4, 2018 at 4:49 PM, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > Hi Ingo, > > On Sun, Mar 4, 2018 at 12:44 PM, Ingo Molnar <mingo@xxxxxxxxxx> wrote: >> * Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: >>> On Fri, Mar 2, 2018 at 8:44 PM, Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote: >>> > >>> > The overall idea of the approach used by KHWASAN is the following: >>> > >>> > 1. By using the Top Byte Ignore arm64 CPU feature, we can store pointer >>> > tags in the top byte of each kernel pointer. >>> >>> And for how long will this be OK? >> >> Firstly it's not for production kernels, it's a hardware accelerator for an >> intrusive debug feature, so it shouldn't really matter, right? > > Sorry, I didn't know it was a debug feature. Hi! Sorry, I'll add a description of what KASAN is in the next revision to avoid confusion. Thanks! -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
