Changes in 5.15.57
x86/traps: Use pt_regs directly in fixup_bad_iret()
x86/entry: Switch the stack after error_entry() returns
x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry()
x86/entry: Don't call error_entry() for XENPV
objtool: Classify symbols
objtool: Explicitly avoid self modifying code in .altinstr_replacement
objtool: Shrink struct instruction
objtool,x86: Replace alternatives with .retpoline_sites
objtool: Introduce CFI hash
x86/retpoline: Remove unused replacement symbols
x86/asm: Fix register order
x86/asm: Fixup odd GEN-for-each-reg.h usage
x86/retpoline: Move the retpoline thunk declarations to nospec-branch.h
x86/retpoline: Create a retpoline thunk array
x86/alternative: Implement .retpoline_sites support
x86/alternative: Handle Jcc __x86_indirect_thunk_\reg
x86/alternative: Try inline spectre_v2=retpoline,amd
x86/alternative: Add debug prints to apply_retpolines()
bpf,x86: Simplify computing label offsets
bpf,x86: Respect X86_FEATURE_RETPOLINE*
objtool: Default ignore INT3 for unreachable
x86/entry: Remove skip_r11rcx
x86/realmode: build with -D__DISABLE_EXPORTS
x86/kvm/vmx: Make noinstr clean
x86/cpufeatures: Move RETPOLINE flags to word 11
x86/retpoline: Cleanup some #ifdefery
x86/retpoline: Swizzle retpoline thunk
x86/retpoline: Use -mfunction-return
x86: Undo return-thunk damage
x86,objtool: Create .return_sites
objtool: skip non-text sections when adding return-thunk sites
x86,static_call: Use alternative RET encoding
x86/ftrace: Use alternative RET encoding
x86/bpf: Use alternative RET encoding
x86/kvm: Fix SETcc emulation for return thunks
x86/vsyscall_emu/64: Don't use RET in vsyscall emulation
x86/sev: Avoid using __x86_return_thunk
x86: Use return-thunk in asm code
x86/entry: Avoid very early RET
objtool: Treat .text.__x86.* as noinstr
x86: Add magic AMD return-thunk
x86/bugs: Report AMD retbleed vulnerability
x86/bugs: Add AMD retbleed= boot parameter
x86/bugs: Enable STIBP for JMP2RET
x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value
x86/entry: Add kernel IBRS implementation
x86/bugs: Optimize SPEC_CTRL MSR writes
x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS
x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation()
x86/bugs: Report Intel retbleed vulnerability
intel_idle: Disable IBRS during long idle
objtool: Update Retpoline validation
x86/xen: Rename SYS* entry points
x86/xen: Add UNTRAIN_RET
x86/bugs: Add retbleed=ibpb
x86/bugs: Do IBPB fallback check only once
objtool: Add entry UNRET validation
x86/cpu/amd: Add Spectral Chicken
x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
x86/speculation: Fix firmware entry SPEC_CTRL handling
x86/speculation: Fix SPEC_CTRL write on SMT state change
x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
x86/speculation: Remove x86_spec_ctrl_mask
objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
KVM: VMX: Flatten __vmx_vcpu_run()
KVM: VMX: Convert launched argument to flags
KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
KVM: VMX: Fix IBRS handling after vmexit
x86/speculation: Fill RSB on vmexit for IBRS
x86/common: Stamp out the stepping madness
x86/cpu/amd: Enumerate BTC_NO
x86/retbleed: Add fine grained Kconfig knobs
x86/bugs: Add Cannon lake to RETBleed affected CPU list
x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry
x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
x86/kexec: Disable RET on kexec
x86/speculation: Disable RRSBA behavior
x86/static_call: Serialize __static_call_fixup() properly
x86/xen: Fix initialisation in hypercall_page after rethunk
x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit
x86/speculation: Use DECLARE_PER_CPU for x86_spec_ctrl_current
efi/x86: use naked RET on mixed mode call wrapper
x86/kvm: fix FASTOP_SIZE when return thunks are enabled
KVM: emulate: do not adjust size of fastop and setcc subroutines
tools arch x86: Sync the msr-index.h copy with the kernel sources
tools headers cpufeatures: Sync with the kernel sources
x86/bugs: Remove apostrophe typo
um: Add missing apply_returns()
x86: Use -mindirect-branch-cs-prefix for RETPOLINE builds
Linux 5.15.57
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7d0a3c3eb4be1e5401c2678fdb6229523486146f
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