linux_dsm_epyc7002/arch/powerpc/lib
Christophe Leroy de78a9c42a powerpc: Add a framework for Kernel Userspace Access Protection
This patch implements a framework for Kernel Userspace Access
Protection.

Then subarches will have the possibility to provide their own
implementation by providing setup_kuap() and
allow/prevent_user_access().

Some platforms will need to know the area accessed and whether it is
accessed from read, write or both. Therefore source, destination and
size and handed over to the two functions.

mpe: Rename to allow/prevent rather than unlock/lock, and add
read/write wrappers. Drop the 32-bit code for now until we have an
implementation for it. Add kuap to pt_regs for 64-bit as well as
32-bit. Don't split strings, use pr_crit_ratelimited().

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-04-21 23:05:57 +10:00
..
alloc.c treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
checksum_32.S powerpc: Implement csum_ipv6_magic in assembly 2018-06-04 00:39:19 +10:00
checksum_64.S powerpc: fix csum_ipv6_magic() on little endian platforms 2018-09-20 21:12:28 +10:00
checksum_wrappers.c powerpc: Add a framework for Kernel Userspace Access Protection 2019-04-21 23:05:57 +10:00
code-patching.c powerpc: Remove duplicate headers 2019-04-20 22:02:44 +10:00
copy_32.S powerpc/lib: Use patch_site to patch copy_32 functions once cache is enabled 2018-08-10 22:12:35 +10:00
copypage_64.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
copypage_power7.S powerpc/64: enhance memcmp() with VMX instruction for long bytes comparision 2018-07-24 22:03:21 +10:00
copyuser_64.S powerpc/64: Copy as much as possible in __copy_tofrom_user 2018-08-08 00:32:36 +10:00
copyuser_power7.S selftests/powerpc/64: Test all paths through copy routines 2018-08-08 00:32:35 +10:00
crtsavres.S powerpc/64: Do not create new section for save/restore functions 2017-05-30 14:59:51 +10:00
div64.S powerpc: Fix a corner case in __div64_32 2005-10-20 09:37:02 +10:00
error-inject.c powerpc: Add support for function error injection 2018-10-20 13:26:43 +11:00
feature-fixups-test.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
feature-fixups.c powerpc/fsl: Add infrastructure to fixup branch predictor flush 2018-12-20 22:53:39 +11:00
hweight_64.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
ldstfp.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
locks.c powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00
Makefile powerpc: sstep: Add tests for compute type instructions 2019-02-23 21:04:31 +11:00
mem_64.S powerpc/64: Remove static branch hints from memset() 2018-09-17 21:17:25 +10:00
memcmp_32.S powerpc/lib: optimise PPC32 memcmp 2018-06-04 00:39:21 +10:00
memcmp_64.S powerpc/64: Fix memcmp reading past the end of src/dest 2019-03-25 23:33:26 +11:00
memcpy_64.S selftests/powerpc/64: Test all paths through copy routines 2018-08-08 00:32:35 +10:00
memcpy_power7.S selftests/powerpc/64: Test all paths through copy routines 2018-08-08 00:32:35 +10:00
pmem.c powerpc/lib: Implement UACCESS_FLUSHCACHE API 2017-11-13 08:00:31 +11:00
quad.S powerpc: Handle most loads and stores in instruction emulation code 2017-09-01 16:39:48 +10:00
rheap.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
sstep.c powerpc sstep: Add support for modsd, modud instructions 2019-02-26 00:05:20 +11:00
string_32.S powerpc/lib: optimise 32 bits __clear_user() 2018-06-04 00:39:21 +10:00
string_64.S powerpc: Fix invalid use of register expressions 2017-08-10 22:29:41 +10:00
string.S powerpc/lib: optimise PPC32 memcmp 2018-06-04 00:39:21 +10:00
strlen_32.S powerpc/lib: Implement strlen() in assembly for PPC32 2018-08-07 21:49:30 +10:00
test_emulate_step_exec_instr.S powerpc: sstep: Add tests for compute type instructions 2019-02-23 21:04:31 +11:00
test_emulate_step.c powerpc: sstep: Add tests for addc[.] instruction 2019-02-23 21:04:31 +11:00
vmx-helper.c powerpc/64: enhance memcmp() with VMX instruction for long bytes comparision 2018-07-24 22:03:21 +10:00
xor_vmx_glue.c powerpc/altivec: Add missing prototypes for altivec 2018-05-25 12:04:38 +10:00
xor_vmx.c powerpc/lib/xor_vmx: Ensure no altivec code executes before enable_kernel_altivec() 2017-06-02 20:17:52 +10:00
xor_vmx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00