# git rev-parse -q --verify 22b8cc3e78f5448b4c5df00303817a9137cd663f^{commit} 22b8cc3e78f5448b4c5df00303817a9137cd663f already have revision, skipping fetch # git checkout -q -f -B kisskb 22b8cc3e78f5448b4c5df00303817a9137cd663f # git clean -qxdf # < git log -1 # commit 22b8cc3e78f5448b4c5df00303817a9137cd663f # Merge: 7b664cc38ea7 97740266de26 # Author: Linus Torvalds # Date: Fri Apr 28 09:43:49 2023 -0700 # # Merge tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Pull x86 LAM (Linear Address Masking) support from Dave Hansen: # "Add support for the new Linear Address Masking CPU feature. # # This is similar to ARM's Top Byte Ignore and allows userspace to store # metadata in some bits of pointers without masking it out before use" # # * tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: # x86/mm/iommu/sva: Do not allow to set FORCE_TAGGED_SVA bit from outside # x86/mm/iommu/sva: Fix error code for LAM enabling failure due to SVA # selftests/x86/lam: Add test cases for LAM vs thread creation # selftests/x86/lam: Add ARCH_FORCE_TAGGED_SVA test cases for linear-address masking # selftests/x86/lam: Add inherit test cases for linear-address masking # selftests/x86/lam: Add io_uring test cases for linear-address masking # selftests/x86/lam: Add mmap and SYSCALL test cases for linear-address masking # selftests/x86/lam: Add malloc and tag-bits test cases for linear-address masking # x86/mm/iommu/sva: Make LAM and SVA mutually exclusive # iommu/sva: Replace pasid_valid() helper with mm_valid_pasid() # mm: Expose untagging mask in /proc/$PID/status # x86/mm: Provide arch_prctl() interface for LAM # x86/mm: Reduce untagged_addr() overhead for systems without LAM # x86/uaccess: Provide untagged_addr() and remove tags before address check # mm: Introduce untagged_addr_remote() # x86/mm: Handle LAM on context switch # x86: CPUID and CR3/CR4 flags for Linear Address Masking # x86: Allow atomic MM_CONTEXT flags setting # x86/mm: Rework address range check in get_user() and put_user() # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 22b8cc3e78f5448b4c5df00303817a9137cd663f # < make -s -j 160 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig # < make -s -j 160 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 160 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 160 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 # Build took: 0:19:49.922435