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Date: Mon, 07 Mar 2016 14:19:50 -0500 (EST) From: David Miller <davem@...emloft.net> To: luto@...capital.net Cc: khalid.aziz@...cle.com, corbet@....net, akpm@...ux-foundation.org, dingel@...ux.vnet.ibm.com, bob.picco@...cle.com, kirill.shutemov@...ux.intel.com, aneesh.kumar@...ux.vnet.ibm.com, aarcange@...hat.com, arnd@...db.de, sparclinux@...r.kernel.org, rob.gardner@...cle.com, mhocko@...e.cz, chris.hyser@...cle.com, richard@....at, vbabka@...e.cz, koct9i@...il.com, oleg@...hat.com, gthelen@...gle.com, jack@...e.cz, xiexiuqi@...wei.com, Vineet.Gupta1@...opsys.com, luto@...nel.org, ebiederm@...ssion.com, bsegall@...gle.com, geert@...ux-m68k.org, dave@...olabs.net, adobriyan@...il.com, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-arch@...r.kernel.org, linux-api@...r.kernel.org Subject: Re: [PATCH v2] sparc64: Add support for Application Data Integrity (ADI) From: Andy Lutomirski <luto@...capital.net> Date: Mon, 7 Mar 2016 10:49:57 -0800 > What data structure or structures changes when this stxa instruction happens? An internal table, maintained by the CPU and/or hypervisor, and if in physical addresses then in a region which is only accessible by the hypervisor. The table is not accessible by the kernel at all via loads or stores.
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