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8 Commits

Author SHA1 Message Date
Daniel Pouzzner
9c36bb9073 linuxkm: add WOLFSSL_COMMERCIAL_LICENSE alternative to kernel_fpu_begin()/kernel_fpu_end() in save_vector_registers_x86()/restore_vector_registers_x86(): allocate wc_linuxkm_fpu_savebufs as a buffer for os_xsave()/os_xrstor(), and use fpregs_lock()/fpregs_unlock() to inhibit softirqs/preemption. 2024-01-05 23:21:24 -06:00
Daniel Pouzzner
4f4842fce6 linuxkm/linuxkm_memory.c: refactor SAVE/RESTORE_VECTOR_REGISTERS() to be per-process rather than per-CPU, and add migrate_disable/enable() to kernel_fpu_begin/end() because preempt_disable() is just a barrier on _PREEMPT_VOLUNTARY kernels; 
linuxkm/linuxkm_wc_port.h: activate SAVE/RESTORE_VECTOR_REGISTERS() whenever defined(WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS) for benchmark.c support, independent of vector crypto features;

fix and optimize various alignment issues with stack and heap allocations;

fix macro definitions for XMALLOC/XREALLOC/XFREE to correctly use kvmalloc and friends when defined(HAVE_KVMALLOC), and to use wolfSSL_Malloc() and friends when defined(WOLFSSL_TRACK_MEMORY);

purge stale LINUXKM_SIMD_IRQ code.
 2023-05-17 01:44:36 -05:00
Daniel Pouzzner
ec9beaab41 linuxkm: add coverage for Linux 6.4+ module memory layout refactor; also, refactor WOLFSSL_LINUXKM_USE_SAVE_VECTOR_REGISTERS to make it settable independent of WOLFSSL_AESNI etc. 2023-05-09 23:53:49 -05:00
Daniel Pouzzner
448f1ec9e7 linuxkm: in {save,restore}_vector_registers_x86(), check if vector register file has already been saved and invalidated, and if so, inhibit the kernel_fpu_{begin,end}() wrap and instead just use preempt_{disable,enable}() wraps. 2023-04-27 17:48:32 -05:00
Jacob Barthelmeh
9dcc48c8f7 update copyright to 2023 2022-12-30 17:12:11 -07:00
Daniel Pouzzner
c8c107a09e linuxkm/: fixes to deal with kernel 6.1+ show_free_areas() mess. 2022-10-18 13:34:24 -05:00
Jacob Barthelmeh
8eaa85e412 update copyright year to 2022 2022-07-19 10:44:31 -06:00
Daniel Pouzzner
ff4c6e5d7b linuxkm: relocate WOLFSSL_LINUXKM code in wolfssl/wolfcrypt/wc_port.h and wolfcrypt/src/memory.c to linuxkm/{linuxkm_wc_port.h,linuxkm_memory.c}, and gate SIMD in IRQ handlers on -DLINUXKM_SIMD_IRQ in prep for Linux 5.16; 
linuxkm: when -DWOLFCRYPT_ONLY, don't include ssl.h in module_exports.c.template and module_hooks.c, and fix gating to work right with that;

wolfssl/wolfcrypt/types.h: add support for a WOLFSSL_XFREE_NO_NULLNESS_CHECK gate (used in cppcheck analysis).
 2022-01-07 22:39:38 -06:00