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x86/cpu: Add 'table' argument to cpu_matches()
commit 93920f61c2
upstream
To make cpu_matches() reusable for other matching tables, have it take a
pointer to a x86_cpu_id table as an argument.
[ bp: Flip arguments order. ]
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
749ec6b48a
commit
dab0161b8a
1 changed files with 14 additions and 11 deletions
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@ -1093,9 +1093,9 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = {
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{}
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};
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static bool __init cpu_matches(unsigned long which)
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static bool __init cpu_matches(const struct x86_cpu_id *table, unsigned long which)
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{
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const struct x86_cpu_id *m = x86_match_cpu(cpu_vuln_whitelist);
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const struct x86_cpu_id *m = x86_match_cpu(table);
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return m && !!(m->driver_data & which);
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}
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@ -1115,31 +1115,34 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
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u64 ia32_cap = x86_read_arch_cap_msr();
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/* Set ITLB_MULTIHIT bug if cpu is not in the whitelist and not mitigated */
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if (!cpu_matches(NO_ITLB_MULTIHIT) && !(ia32_cap & ARCH_CAP_PSCHANGE_MC_NO))
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if (!cpu_matches(cpu_vuln_whitelist, NO_ITLB_MULTIHIT) &&
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!(ia32_cap & ARCH_CAP_PSCHANGE_MC_NO))
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setup_force_cpu_bug(X86_BUG_ITLB_MULTIHIT);
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if (cpu_matches(NO_SPECULATION))
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if (cpu_matches(cpu_vuln_whitelist, NO_SPECULATION))
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return;
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setup_force_cpu_bug(X86_BUG_SPECTRE_V1);
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if (!cpu_matches(NO_SPECTRE_V2))
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if (!cpu_matches(cpu_vuln_whitelist, NO_SPECTRE_V2))
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setup_force_cpu_bug(X86_BUG_SPECTRE_V2);
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if (!cpu_matches(NO_SSB) && !(ia32_cap & ARCH_CAP_SSB_NO) &&
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if (!cpu_matches(cpu_vuln_whitelist, NO_SSB) &&
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!(ia32_cap & ARCH_CAP_SSB_NO) &&
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!cpu_has(c, X86_FEATURE_AMD_SSB_NO))
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setup_force_cpu_bug(X86_BUG_SPEC_STORE_BYPASS);
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if (ia32_cap & ARCH_CAP_IBRS_ALL)
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setup_force_cpu_cap(X86_FEATURE_IBRS_ENHANCED);
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if (!cpu_matches(NO_MDS) && !(ia32_cap & ARCH_CAP_MDS_NO)) {
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if (!cpu_matches(cpu_vuln_whitelist, NO_MDS) &&
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!(ia32_cap & ARCH_CAP_MDS_NO)) {
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setup_force_cpu_bug(X86_BUG_MDS);
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if (cpu_matches(MSBDS_ONLY))
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if (cpu_matches(cpu_vuln_whitelist, MSBDS_ONLY))
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setup_force_cpu_bug(X86_BUG_MSBDS_ONLY);
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}
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if (!cpu_matches(NO_SWAPGS))
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if (!cpu_matches(cpu_vuln_whitelist, NO_SWAPGS))
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setup_force_cpu_bug(X86_BUG_SWAPGS);
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/*
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@ -1157,7 +1160,7 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
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(ia32_cap & ARCH_CAP_TSX_CTRL_MSR)))
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setup_force_cpu_bug(X86_BUG_TAA);
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if (cpu_matches(NO_MELTDOWN))
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if (cpu_matches(cpu_vuln_whitelist, NO_MELTDOWN))
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return;
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/* Rogue Data Cache Load? No! */
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@ -1166,7 +1169,7 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
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setup_force_cpu_bug(X86_BUG_CPU_MELTDOWN);
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if (cpu_matches(NO_L1TF))
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if (cpu_matches(cpu_vuln_whitelist, NO_L1TF))
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return;
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setup_force_cpu_bug(X86_BUG_L1TF);
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