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Date: Mon, 12 Mar 2018 03:06:12 +0000 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org CC: akpm@...ux-foundation.org, "Linus Torvalds" <torvalds@...ux-foundation.org>, "Andi Kleen" <ak@...ux.intel.com>, "Paul Turner" <pjt@...gle.com>, "Tim Chen" <tim.c.chen@...ux.intel.com>, "Alan Cox" <gnomes@...rguk.ukuu.org.uk>, "Thomas Gleixner" <tglx@...utronix.de>, "Peter Zijlstra" <peterz@...radead.org>, "Andi Lutomirski" <luto@...capital.net>, "Greg KH" <gregkh@...ux-foundation.org>, "Tom Lendacky" <thomas.lendacky@....com>, "Jiri Koshina" <jikos@...nel.org>, "David Woodhouse" <dwmw@...zon.co.uk>, "Dave Hansen" <dave.hansen@...el.com>, "Kees Cook" <keescook@...gle.com> Subject: [PATCH 3.16 07/76] x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN 3.16.56-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Gleixner <tglx@...utronix.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@...utronix.de> Acked-by: David Woodhouse <dwmw@...zon.co.uk> Cc: Alan Cox <gnomes@...rguk.ukuu.org.uk> Cc: Jiri Koshina <jikos@...nel.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Tim Chen <tim.c.chen@...ux.intel.com> Cc: Andi Lutomirski <luto@...capital.net> Cc: Andi Kleen <ak@...ux.intel.com> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Paul Turner <pjt@...gle.com> Cc: Tom Lendacky <thomas.lendacky@....com> Cc: Greg KH <gregkh@...ux-foundation.org> Cc: Dave Hansen <dave.hansen@...el.com> Cc: Kees Cook <keescook@...gle.com> Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1801051525300.1724@nanos [bwh: Backported to 3.16: bug number is different] Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -241,7 +241,7 @@ #define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */ #define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* AMD Erratum 383 */ #define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* AMD Erratum 400 */ -#define X86_BUG_CPU_INSECURE X86_BUG(5) /* CPU is insecure and needs kernel page table isolation */ +#define X86_BUG_CPU_MELTDOWN X86_BUG(5) /* CPU is affected by meltdown attack and needs kernel page table isolation */ #if defined(__KERNEL__) && !defined(__ASSEMBLY__) --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -806,7 +806,7 @@ static void __init early_identify_cpu(st setup_force_cpu_cap(X86_FEATURE_ALWAYS); if (c->x86_vendor != X86_VENDOR_AMD) - setup_force_cpu_bug(X86_BUG_CPU_INSECURE); + setup_force_cpu_bug(X86_BUG_CPU_MELTDOWN); } void __init early_cpu_init(void)
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