From: Peter Zijlstra Date: Tue, 8 Mar 2022 15:30:42 +0000 (+0100) Subject: x86/ibt,sev: Annotations X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e8d61bdf0fdfaeaf35fb5a63d6e67e60038b88e0;p=linux.git x86/ibt,sev: Annotations No IBT on AMD so far.. probably correct, who knows. Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20220308154318.995109889@infradead.org --- diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index d76f14f581f72..6e5399104abd6 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -95,6 +95,7 @@ SYM_CODE_START(entry_SYSCALL_64) movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp SYM_INNER_LABEL(entry_SYSCALL_64_safe_stack, SYM_L_GLOBAL) + ANNOTATE_NOENDBR /* Construct struct pt_regs on stack */ pushq $__USER_DS /* pt_regs->ss */ diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index 74208a1236b36..4fdb007cddbd1 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -214,6 +214,7 @@ SYM_CODE_START(entry_SYSCALL_compat) movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp SYM_INNER_LABEL(entry_SYSCALL_compat_safe_stack, SYM_L_GLOBAL) + ANNOTATE_NOENDBR /* Construct struct pt_regs on stack */ pushq $__USER32_DS /* pt_regs->ss */ diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 462cc1e18919e..b8e3019547a5d 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -332,6 +332,7 @@ SYM_CODE_END(start_cpu0) */ SYM_CODE_START_NOALIGN(vc_boot_ghcb) UNWIND_HINT_IRET_REGS offset=8 + ENDBR /* Build pt_regs */ PUSH_AND_CLEAR_REGS @@ -439,6 +440,7 @@ SYM_CODE_END(early_idt_handler_common) */ SYM_CODE_START_NOALIGN(vc_no_ghcb) UNWIND_HINT_IRET_REGS offset=8 + ENDBR /* Build pt_regs */ PUSH_AND_CLEAR_REGS