linux/arch/x86
Pengfei Xu 0d345996e4 x86/kernel: increase kcov coverage under arch/x86/kernel folder
Currently kcov instrument is disabled for object files under
arch/x86/kernel folder.

For object files under arch/x86/kernel, actually just disabling the kcov
instrument of files:"head32.o or head64.o and sev.o" could achieve
successful booting and provide kcov coverage for object files that do not
disable kcov instrument.  The additional kcov coverage collected from
arch/x86/kernel folder helps kernel fuzzing efforts to find bugs.

Link to related improvement discussion is below:
https://groups.google.com/g/syzkaller/c/Dsl-RYGCqs8/m/x-tfpTyFBAAJ Related
ticket is as follow: https://bugzilla.kernel.org/show_bug.cgi?id=198443

Link: https://lkml.kernel.org/r/06c0bb7b5f61e5884bf31180e8c122648c752010.1690771380.git.pengfei.xu@intel.com
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Pengfei Xu <pengfei.xu@intel.com>
Cc: Aleksandr Nogikh <nogikh@google.com>
Cc: <heng.su@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Kees Cook <keescook@google.com>,
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-18 10:19:01 -07:00
..
boot - Fix a race window where load_unaligned_zeropad() could cause 2023-06-26 16:32:47 -07:00
coco - Some SEV and CC platform helpers cleanup and simplifications now that 2023-06-27 13:26:30 -07:00
configs arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS 2023-07-29 14:08:22 -07:00
crypto This push fixes an alignment crash in x86/aria. 2023-05-29 07:05:49 -04:00
entry x86: Fix kthread unwind 2023-07-20 23:03:50 +02:00
events perf/x86: Fix lockdep warning in for_each_sibling_event() on SPR 2023-07-10 09:52:20 +02:00
hyperv - Some SEV and CC platform helpers cleanup and simplifications now that 2023-06-27 13:26:30 -07:00
ia32
include nmi_backtrace: allow excluding an arbitrary CPU 2023-08-18 10:19:00 -07:00
kernel x86/kernel: increase kcov coverage under arch/x86/kernel folder 2023-08-18 10:19:01 -07:00
kvm KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest 2023-07-29 11:05:32 -04:00
lib Locking changes for v6.5: 2023-06-27 14:14:30 -07:00
math-emu x86/fpu: Include asm/fpu/regset.h 2023-05-18 11:56:18 -07:00
mm Merge branch 'expand-stack' 2023-06-28 20:35:21 -07:00
net bpf: Fix a bpf_jit_dump issue for x86_64 with sysctl bpf_jit_enable. 2023-06-12 16:47:18 +02:00
pci range.h: Move resource API and constant to respective files 2023-08-18 10:19:00 -07:00
platform A single regression fix for x86: 2023-07-01 11:40:01 -07:00
power x86/topology: Remove CPU0 hotplug option 2023-05-15 13:44:49 +02:00
purgatory hardening updates for v6.5-rc1 2023-06-27 21:24:18 -07:00
ras
realmode x86/realmode: Make stack lock work in trampoline_compat() 2023-05-30 14:11:47 +02:00
tools ELF: fix all "Elf" typos 2023-04-08 13:45:37 -07:00
um um: make stub data pages size tweakable 2023-04-20 23:08:43 +02:00
video drm changes for 6.5-rc1: 2023-06-29 11:00:17 -07:00
virt/vmx/tdx
xen xen: branch for v6.5-rc2 2023-07-13 13:39:36 -07:00
.gitignore
Kbuild
Kconfig kexec: rename ARCH_HAS_KEXEC_PURGATORY 2023-08-18 10:18:54 -07:00
Kconfig.assembler crypto: x86/aria-avx - fix build failure with old binutils 2023-01-20 18:29:31 +08:00
Kconfig.cpu x86/cpu: Remove X86_FEATURE_NAMES 2023-05-15 20:03:08 +02:00
Kconfig.debug docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
Makefile x86/unwind/orc: Add ELF section with ORC version identifier 2023-06-16 17:17:42 +02:00
Makefile_32.cpu
Makefile.postlink x86/build: Avoid relocation information in final vmlinux 2023-06-14 19:54:40 +02:00
Makefile.um um: Only disable SSE on clang to work around old GCC bugs 2023-04-04 09:57:05 +02:00