AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/x86/lib
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Arvind Sankar aef0148f36 x86/cmdline: Disable jump tables for cmdline.c 
When CONFIG_RETPOLINE is disabled, Clang uses a jump table for the
switch statement in cmdline_find_option (jump tables are disabled when
CONFIG_RETPOLINE is enabled). This function is called very early in boot
from sme_enable() if CONFIG_AMD_MEM_ENCRYPT is enabled. At this time,
the kernel is still executing out of the identity mapping, but the jump
table will contain virtual addresses.

Fix this by disabling jump tables for cmdline.c when AMD_MEM_ENCRYPT is
enabled.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200903023056.3914690-1-nivedita@alum.mit.edu
2020-09-03 10:59:16 +02:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
atomic64_32.c
atomic64_386_32.S x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 12:03:43 +02:00
atomic64_cx8_32.S x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 12:03:43 +02:00
cache-smp.c smp: Remove smp_call_function() and on_each_cpu() return values 2019-06-23 14:26:26 +02:00
checksum_32.S x86: Change {JMP,CALL}_NOSPEC argument 2020-04-30 20:14:34 +02:00
clear_page_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
cmdline.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
cmpxchg8b_emu.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
cmpxchg16b_emu.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
copy_page_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
copy_user_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
cpu.c x86/lib/cpu: Address missing prototypes warning 2019-08-08 08:25:53 +02:00
csum-copy_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
csum-partial_64.c
csum-wrappers_64.c x86: switch both 32bit and 64bit to providing csum_and_copy_from_user() 2020-05-29 16:11:48 -04:00
delay.c x86/delay: Introduce TPAUSE delay 2020-05-07 16:06:20 +02:00
error-inject.c x86/asm: Mark all top level asm statements as .text 2019-04-19 17:46:55 +02:00
getuser.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
hweight.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
inat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
insn-eval.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
insn.c x86: xen: insn: Decode Xen and KVM emulate-prefix signature 2019-10-17 21:31:57 +02:00
iomap_copy_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
iomem.c
kaslr.c
Makefile x86/cmdline: Disable jump tables for cmdline.c 2020-09-03 10:59:16 +02:00
memcpy_32.c
memcpy_64.S x86/entry: Fixup bad_iret vs noinstr 2020-06-25 13:45:39 +02:00
memmove_64.S x86/cpufeatures: Add support for fast short REP; MOVSB 2020-01-08 11:29:25 +01:00
memset_64.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
misc.c
mmx_32.c
msr-reg-export.c
msr-reg.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
msr-smp.c
msr.c
putuser.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
retpoline.S x86/retpoline: Fix retpoline unwind 2020-04-30 20:14:34 +02:00
string_32.c
strstr_32.c
usercopy_32.c
usercopy_64.c x86/asm/64: Align start of __clear_user() loop to 16-bytes 2020-06-19 18:32:11 +02:00
usercopy.c
x86-opcode-map.txt x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map 2020-03-26 12:21:40 +01:00