This series is primarily motivated from an adhoc list from Mark Rutland during our previous ID_ISAR6 discussion [1]. The current proposal also accommodates some more suggestions from Will and Suzuki. This series adds missing 32 bit system registers (ID_PFR2, ID_DFR1 and ID_MMFR5), adds missing features bits on all existing system registers (32 and 64 bit) and some other miscellaneous changes. While here it also includes a patch which does macro replacement for various open bits shift encodings for various CPU ID registers. There is a slight re-order of the patches here as compared to the previous version (V1). This series is based on v5.7-rc1. All feature bits enabled here can be referred in ARM DDI 0487F.a specification. Though I have tried to select appropriate values for each new feature being added here, there might be some inconsistencies (or mistakes). In which case, please do let me know if anything needs to change. Thank you. [1] https://patchwork.kernel.org/patch/11287805/ Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Marc Zyngier <maz@xxxxxxxxxx> Cc: James Morse <james.morse@xxxxxxx> Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx> Cc: kvmarm@xxxxxxxxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Changes in V2: - Added Suggested-by tag from Mark Rutland for all changes he had proposed - Added comment for SpecSEI feature on why it is HIGHER_SAFE per Suzuki - Added a patch which makes ID_AA64DFR0_DOUBLELOCK a signed feature per Suzuki - Added ID_DFR1 and ID_MMFR5 system register definitions per Will - Added remaining features bits for relevant 64 bit system registers per Will - Changed commit message on [PATCH 5/7] regarding TraceFilt feature per Suzuki - Changed ID_PFR2.CSV3 (FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per Will - Changed ID_PFR0.CSV2 (FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per Will - Changed some commit messages Changes in V1: (https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=234093) Anshuman Khandual (16): arm64/cpufeature: Add explicit ftr_id_isar0[] for ID_ISAR0 register arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0 arm64/cpufeature: Introduce ID_PFR2 CPU register arm64/cpufeature: Introduce ID_DFR1 CPU register arm64/cpufeature: Introduce ID_MMFR5 CPU register arm64/cpufeature: Add remaining feature bits in ID_PFR0 register arm64/cpufeature: Add remaining feature bits in ID_MMFR4 register arm64/cpufeature: Add remaining feature bits in ID_AA64ISAR0 register arm64/cpufeature: Add remaining feature bits in ID_AA64PFR0 register arm64/cpufeature: Add remaining feature bits in ID_AA64PFR1 register arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR0 register arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR1 register arm64/cpufeature: Add remaining feature bits in ID_AA64MMFR2 register arm64/cpufeature: Add remaining feature bits in ID_AA64DFR0 register arm64/cpufeature: Replace all open bits shift encodings with macros arch/arm64/include/asm/cpu.h | 3 + arch/arm64/include/asm/sysreg.h | 90 ++++++++++++++++++++ arch/arm64/kernel/cpufeature.c | 141 +++++++++++++++++++++++++------- arch/arm64/kernel/cpuinfo.c | 3 + arch/arm64/kvm/sys_regs.c | 6 +- 5 files changed, 211 insertions(+), 32 deletions(-) -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
