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    Subject[PATCH 4.9 70/96] x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Thomas Gleixner <tglx@linutronix.de>

    commit de791821c295cc61419a06fe5562288417d1bc58 upstream.

    Use the name associated with the particular attack which needs page table
    isolation for mitigation.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Acked-by: David Woodhouse <dwmw@amazon.co.uk>
    Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
    Cc: Jiri Koshina <jikos@kernel.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Tim Chen <tim.c.chen@linux.intel.com>
    Cc: Andi Lutomirski <luto@amacapital.net>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Paul Turner <pjt@google.com>
    Cc: Tom Lendacky <thomas.lendacky@amd.com>
    Cc: Greg KH <gregkh@linux-foundation.org>
    Cc: Dave Hansen <dave.hansen@intel.com>
    Cc: Kees Cook <keescook@google.com>
    Cc: stable@vger.kernel.org
    Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1801051525300.1724@nanos
    Signed-off-by: Razvan Ghitulete <rga@amazon.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/x86/include/asm/cpufeatures.h | 2 +-
    arch/x86/kernel/cpu/common.c | 2 +-
    2 files changed, 2 insertions(+), 2 deletions(-)

    --- a/arch/x86/include/asm/cpufeatures.h
    +++ b/arch/x86/include/asm/cpufeatures.h
    @@ -316,6 +316,6 @@
    #define X86_BUG_SWAPGS_FENCE X86_BUG(11) /* SWAPGS without input dep on GS */
    #define X86_BUG_MONITOR X86_BUG(12) /* IPI required to wake up remote CPU */
    #define X86_BUG_AMD_E400 X86_BUG(13) /* CPU is among the affected by Erratum 400 */
    -#define X86_BUG_CPU_INSECURE X86_BUG(14) /* CPU is insecure and needs kernel page table isolation */
    +#define X86_BUG_CPU_MELTDOWN X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */

    #endif /* _ASM_X86_CPUFEATURES_H */
    --- a/arch/x86/kernel/cpu/common.c
    +++ b/arch/x86/kernel/cpu/common.c
    @@ -884,7 +884,7 @@ static void __init early_identify_cpu(st
    setup_force_cpu_cap(X86_FEATURE_ALWAYS);

    /* Assume for now that ALL x86 CPUs are insecure */
    - setup_force_cpu_bug(X86_BUG_CPU_INSECURE);
    + setup_force_cpu_bug(X86_BUG_CPU_MELTDOWN);

    fpu__init_system(c);
    }

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