On Fri, 27 Nov 2020 10:14:02 +0530, Aneesh Kumar K.V wrote:

This patch series implements KUAP and KUEP with hash translation mode using
memory keys. The kernel now uses memory protection key 3 to control access
to the kernel. Kernel page table entries are now configured with key 3.
Access to locations configured with any other key value is denied when in
kernel mode (MSR_PR=0). This includes userspace which is by default configured
with key 0.

[...]

Patches 1-20, 22 applied to powerpc/next.

[01/22] powerpc: Add new macro to handle NESTED_IFCLR
        https://git.kernel.org/powerpc/c/c3d35ddd1ec874690a4e8da5a18497256f1ffa9a
[02/22] KVM: PPC: BOOK3S: PR: Ignore UAMOR SPR
        https://git.kernel.org/powerpc/c/9f378b9f007cc94beadea40df83cc62a76975c6f
[03/22] powerpc/book3s64/kuap/kuep: Add PPC_PKEY config on book3s64
        https://git.kernel.org/powerpc/c/227ae625522c65c4535cabe407f47abc058585ed
[04/22] powerpc/book3s64/kuap/kuep: Move uamor setup to pkey init
        https://git.kernel.org/powerpc/c/39df17bc20059c84ddc6f91831fce2e2cc79a6f3
[05/22] powerpc/book3s64/kuap: Move KUAP related function outside radix
        https://git.kernel.org/powerpc/c/3b47b7549ead0719e94022c6742199333c7c8d9f
[06/22] powerpc/book3s64/kuep: Move KUEP related function outside radix
        https://git.kernel.org/powerpc/c/57b7505aa8ba13eb18ffabeb689ac64343c53aaa
[07/22] powerpc/book3s64/kuap: Rename MMU_FTR_RADIX_KUAP and MMU_FTR_KUEP
        https://git.kernel.org/powerpc/c/d5b810b5c938e73fd21b2b05ef6a79837eeaa305
[08/22] powerpc/book3s64/kuap: Use Key 3 for kernel mapping with hash translation
        https://git.kernel.org/powerpc/c/d94b827e89dc3f92cd871d10f4992a6bd3c861e5
[09/22] powerpc/exec: Set thread.regs early during exec
        https://git.kernel.org/powerpc/c/d7df77e89039623ededf0ece7b4358f7c9ecbaae
[10/22] powerpc/book3s64/pkeys: Store/restore userspace AMR/IAMR correctly on entry and exit from kernel
        https://git.kernel.org/powerpc/c/8e560921b58cbc18e192f0ac273d307a37a144f9
[11/22] powerpc/book3s64/pkeys: Inherit correctly on fork.
        https://git.kernel.org/powerpc/c/f643fcab74c005ddfdda68c69909f03bde766ff1
[12/22] powerpc/book3s64/pkeys: Reset userspace AMR correctly on exec
        https://git.kernel.org/powerpc/c/d5fa30e6993ffcdd1859d8dab1a07a6f6c6e7c3f
[13/22] powerpc/ptrace-view: Use pt_regs values instead of thread_struct based one.
        https://git.kernel.org/powerpc/c/edc541ecaae73d498a49b9ca82bc66255d9e0720
[14/22] powerpc/book3s64/pkeys: Don't update SPRN_AMR when in kernel mode.
        https://git.kernel.org/powerpc/c/48a8ab4eeb8271f2a0e2ca3cf80844a59acca153
[15/22] powerpc/book3s64/kuap: Restrict access to userspace based on userspace AMR
        https://git.kernel.org/powerpc/c/4d6c551e9f548f7675a01eff229d09ab41162a25
[16/22] powerpc/book3s64/kuap: Improve error reporting with KUAP
        https://git.kernel.org/powerpc/c/eb232b1624462752dc916d9015b31ecdac0a01f1
[17/22] powerpc/book3s64/kuap: Use Key 3 to implement KUAP with hash translation.
        https://git.kernel.org/powerpc/c/fa46c2fa6ffbedab3a3cbcbde1292468979e830b
[18/22] powerpc/book3s64/kuep: Use Key 3 to implement KUEP with hash translation.
        https://git.kernel.org/powerpc/c/292f86c4c683a1064aff7210348da088c1573ee0
[19/22] powerpc/book3s64/hash/kuap: Enable kuap on hash
        https://git.kernel.org/powerpc/c/b2ff33a10c8b3e9d260c57df38b5cd3765a0b785
[20/22] powerpc/book3s64/hash/kuep: Enable KUEP on hash
        https://git.kernel.org/powerpc/c/c91435d95c49f4053b05ba03b41dd7ed0fbd6c71
[22/22] powerpc/book3s64/pkeys: Optimize KUAP and KUEP feature disabled case
        https://git.kernel.org/powerpc/c/ec0f9b98f7d01b15c804e77e12a515ffc56d7309

cheers