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android_kernel_samsung_sm8650/arch/x86
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Borislav Petkov (AMD) 000322b29c x86/retbleed: Fix return thunk alignment 
commit 9a48d604672220545d209e9996c2a1edbb5637f6 upstream.

SYM_FUNC_START_LOCAL_NOALIGN() adds an endbr leading to this layout
(leaving only the last 2 bytes of the address):

  3bff <zen_untrain_ret>:
  3bff:       f3 0f 1e fa             endbr64
  3c03:       f6                      test   $0xcc,%bl

  3c04 <__x86_return_thunk>:
  3c04:       c3                      ret
  3c05:       cc                      int3
  3c06:       0f ae e8                lfence

However, "the RET at __x86_return_thunk must be on a 64 byte boundary,
for alignment within the BTB."

Use SYM_START instead.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-17 11:53:41 +02:00
..
boot x86/sev: Add SEV-SNP guest feature negotiation support 2023-02-01 08:34:50 +01:00
coco x86/tdx: Panic on bad configs that #VE on "private" memory access 2022-11-01 16:02:40 -07:00
configs x86/defconfig: Enable CONFIG_DEBUG_WX=y 2022-09-02 10:41:42 +02:00
crypto crypto: x86/ghash - fix unaligned access in ghash_setkey() 2023-03-10 09:32:51 +01:00
entry x86/vdso: Conditionally export __vdso_sgx_enter_enclave() 2022-12-21 17:48:01 +01:00
events perf/x86/core: Zero @lbr instead of returning -1 in x86_perf_get_lbr() stub 2023-05-17 11:53:27 +02:00
hyperv x86/hyperv: Remove unregister syscore call from Hyper-V cleanup 2022-12-31 13:32:56 +01:00
ia32 x86: Remove a.out support 2022-04-11 18:04:27 +02:00
include perf/x86/core: Zero @lbr instead of returning -1 in x86_perf_get_lbr() stub 2023-05-17 11:53:27 +02:00
kernel x86/ioapic: Don't return 0 from arch_dynirq_lower_bound() 2023-05-11 23:03:16 +09:00
kvm KVM: x86/mmu: Refresh CR0.WP prior to checking for emulated permission faults 2023-05-17 11:53:30 +02:00
lib x86/retbleed: Fix return thunk alignment 2023-05-17 11:53:41 +02:00
math-emu x86/32: Remove lazy GS macros 2022-04-14 14:09:43 +02:00
mm x86/mm: Fix use of uninitialized buffer in sme_enable() 2023-03-22 13:34:05 +01:00
net bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop") 2022-11-04 23:13:08 +01:00
pci x86/PCI: Add quirk for AMD XHCI controller that loses MSI-X state in D3hot 2023-04-20 12:35:13 +02:00
platform EFI updates for v6.1 2022-10-09 08:56:54 -07:00
power x86/pm: Add enumeration check before spec MSRs save/restore setup 2022-11-21 14:16:16 +01:00
purgatory purgatory: fix disabling debug info 2023-04-26 14:28:42 +02:00
ras
realmode x86/boot: Skip realmode init code when running as Xen PV guest 2022-12-31 13:32:16 +01:00
tools x86/tools/relocs: Ignore __kcfi_typeid_ relocations 2022-09-26 10:13:15 -07:00
um x86: um: vdso: Add '%rcx' and '%r11' to the syscall clobber list 2023-03-11 13:55:22 +01:00
video
virt/vmx/tdx x86/tdx: Provide common base for SEAMCALL and TDCALL C wrappers 2022-04-07 08:27:50 -07:00
xen x86/PVH: avoid 32-bit build warning when obtaining VGA console info 2023-04-06 12:10:58 +02:00
.gitignore x86/purgatory: Omit use of bin2c 2022-07-25 10:32:32 +02:00
Kbuild x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c} 2022-02-23 18:25:58 +01:00
Kconfig x86/apic: Handle no CONFIG_X86_X2APIC on systems with x2APIC enabled by BIOS 2022-12-31 13:32:58 +01:00
Kconfig.assembler
Kconfig.cpu x86/mmx_32: Remove X86_USE_3DNOW 2021-12-11 09:09:45 +01:00
Kconfig.debug arch: make TRACE_IRQFLAGS_NMI_SUPPORT generic 2022-06-23 15:39:21 +01:00
Makefile x86/build: Move '-mindirect-branch-cs-prefix' out of GCC-only block 2023-02-09 11:28:13 +01:00
Makefile_32.cpu
Makefile.um um: Only disable SSE on clang to work around old GCC bugs 2023-05-01 08:26:27 +09:00