diff options
| author | Breno Leitao <leitao@debian.org> | 2023-11-21 19:07:35 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-01-10 12:52:29 +0300 |
| commit | 1da8d2172ce5175118929363fe568e41f24ad3d6 (patch) | |
| tree | 072d7452ce6e7649b960f89228e54f3aba766b94 /arch | |
| parent | ac61d43983a4fe8e3ee600eee44c40868c14340a (diff) | |
| download | linux-1da8d2172ce5175118929363fe568e41f24ad3d6.tar.xz | |
x86/bugs: Rename CONFIG_CPU_IBRS_ENTRY => CONFIG_MITIGATION_IBRS_ENTRY
Step 8/10 of the namespace unification of CPU mitigations related Kconfig options.
Suggested-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20231121160740.1249350-9-leitao@debian.org
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 2 | ||||
| -rw-r--r-- | arch/x86/entry/calling.h | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 4 |
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 77b8769f3026..60d38df26f00 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2561,7 +2561,7 @@ config MITIGATION_IBPB_ENTRY help Compile the kernel with support for the retbleed=ibpb mitigation. -config CPU_IBRS_ENTRY +config MITIGATION_IBRS_ENTRY bool "Enable IBRS on kernel entry" depends on CPU_SUP_INTEL && X86_64 default y diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h index 7ac2d6f946ed..39e069b68c6e 100644 --- a/arch/x86/entry/calling.h +++ b/arch/x86/entry/calling.h @@ -303,7 +303,7 @@ For 32-bit we have the following conventions - kernel is built with * Assumes x86_spec_ctrl_{base,current} to have SPEC_CTRL_IBRS set. */ .macro IBRS_ENTER save_reg -#ifdef CONFIG_CPU_IBRS_ENTRY +#ifdef CONFIG_MITIGATION_IBRS_ENTRY ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_KERNEL_IBRS movl $MSR_IA32_SPEC_CTRL, %ecx @@ -332,7 +332,7 @@ For 32-bit we have the following conventions - kernel is built with * regs. Must be called after the last RET. */ .macro IBRS_EXIT save_reg -#ifdef CONFIG_CPU_IBRS_ENTRY +#ifdef CONFIG_MITIGATION_IBRS_ENTRY ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_KERNEL_IBRS movl $MSR_IA32_SPEC_CTRL, %ecx diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 2580368c32d1..e11bacbd8f39 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -1439,7 +1439,7 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void) return SPECTRE_V2_CMD_AUTO; } - if (cmd == SPECTRE_V2_CMD_IBRS && !IS_ENABLED(CONFIG_CPU_IBRS_ENTRY)) { + if (cmd == SPECTRE_V2_CMD_IBRS && !IS_ENABLED(CONFIG_MITIGATION_IBRS_ENTRY)) { pr_err("%s selected but not compiled in. Switching to AUTO select\n", mitigation_options[i].option); return SPECTRE_V2_CMD_AUTO; @@ -1565,7 +1565,7 @@ static void __init spectre_v2_select_mitigation(void) break; } - if (IS_ENABLED(CONFIG_CPU_IBRS_ENTRY) && + if (IS_ENABLED(CONFIG_MITIGATION_IBRS_ENTRY) && boot_cpu_has_bug(X86_BUG_RETBLEED) && retbleed_cmd != RETBLEED_CMD_OFF && retbleed_cmd != RETBLEED_CMD_STUFF && |