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[174.112.62.108]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7b32ac2dcebsm77807285a.7.2024.11.07.08.20.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2024 08:20:34 -0800 (PST) From: bruce.ashfield@gmail.com To: richard.purdie@linuxfoundation.org Cc: openembedded-core@lists.openembedded.org Subject: [PATCH] kernel-devsrc: update for 6.12+ Date: Thu, 7 Nov 2024 11:20:33 -0500 Message-Id: <20241107162033.1002248-1-bruce.ashfield@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 07 Nov 2024 16:20:45 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/206840 From: Bruce Ashfield arm64 needs some new files to regenerate the build environment in 6.12+. This is due to upstream commits: commit e632bca07c8eef1de9dc50f4e4066c56e9d68b07 Author: Arnd Bergmann Date: Thu Jul 4 14:33:34 2024 +0200 arm64: generate 64-bit syscall.tbl Change the asm/unistd.h header for arm64 to no longer include asm-generic/unistd.h itself, but instead generate both the asm/unistd.h contents and the list of entry points using the syscall.tbl scripts that we use on most other architectures. Once his is done for the remaining architectures, the generic unistd.h header can be removed and the generated tbl file put in its place. The Makefile changes are more complex than they should be, I need a little help to improve those. Ideally this should be done in an architecture-independent way as well. Acked-by: Catalin Marinas Signed-off-by: Arnd Bergmann and: commit 712676ea2bb3882a852bcf49862c4247317fc9b2 Author: Adhemerval Zanella Date: Tue Sep 3 12:09:17 2024 +0000 arm64: vDSO: Wire up getrandom() vDSO implementation Hook up the generic vDSO implementation to the aarch64 vDSO data page. The _vdso_rng_data required data is placed within the _vdso_data vvar page, by using a offset larger than the vdso_data. The vDSO function requires a ChaCha20 implementation that does not write to the stack, and that can do an entire ChaCha20 permutation. The one provided uses NEON on the permute operation, with a fallback to the syscall for chips that do not support AdvSIMD. This also passes the vdso_test_chacha test along with vdso_test_getrandom. The vdso_test_getrandom bench-single result on Neoverse-N1 shows: vdso: 25000000 times in 0.783884250 seconds libc: 25000000 times in 8.780275399 seconds syscall: 25000000 times in 8.786581518 seconds A small fixup to arch/arm64/include/asm/mman.h was required to avoid pulling kernel code into the vDSO, similar to what's already done in arch/arm64/include/asm/rwonce.h. Signed-off-by: Adhemerval Zanella Reviewed-by: Ard Biesheuvel Acked-by: Will Deacon Signed-off-by: Jason A. Donenfeld Signed-off-by: Bruce Ashfield --- meta/recipes-kernel/linux/kernel-devsrc.bb | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/meta/recipes-kernel/linux/kernel-devsrc.bb b/meta/recipes-kernel/linux/kernel-devsrc.bb index a353334349..bc77129656 100644 --- a/meta/recipes-kernel/linux/kernel-devsrc.bb +++ b/meta/recipes-kernel/linux/kernel-devsrc.bb @@ -198,6 +198,10 @@ do_install() { cp -a --parents arch/arm64/kernel/vdso/note.S $kerneldir/build/ cp -a --parents arch/arm64/kernel/vdso/gen_vdso_offsets.sh $kerneldir/build/ + # 6.12+ + cp -a --parents arch/arm64/kernel/vdso/vgetrandom.c $kerneldir/build/ 2>/dev/null || : + cp -a --parents arch/arm64/kernel/vdso/vgetrandom-chacha.S $kerneldir/build/ 2>/dev/null || : + cp -a --parents arch/arm64/kernel/module.lds $kerneldir/build/ 2>/dev/null || : # 5.13+ needs these tools @@ -208,6 +212,10 @@ do_install() { cp -a --parents arch/arm64/tools/gen-sysreg.awk $kerneldir/build/ 2>/dev/null || : cp -a --parents arch/arm64/tools/sysreg $kerneldir/build/ 2>/dev/null || : + # 6.12+ + cp -a --parents arch/arm64/tools/syscall_64.tbl $kerneldir/build/ 2>/dev/null || : + cp -a --parents arch/arm64/tools/syscall_32.tbl $kerneldir/build/ 2>/dev/null || : + if [ -e $kerneldir/build/arch/arm64/tools/gen-cpucaps.awk ]; then sed -i -e "s,#!.*awk.*,#!${USRBINPATH}/env awk," $kerneldir/build/arch/arm64/tools/gen-cpucaps.awk fi