x86/CPU/AMD: Move Zenbleed check to the Zen2 init function
Prefix it properly so that it is clear which generation it is dealing with. No functional changes. Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: http://lore.kernel.org/r/20231120104152.13740-8-bp@alien8.de
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@ -70,12 +70,6 @@ static const int amd_erratum_383[] =
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static const int amd_erratum_1054[] =
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AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0, 0, 0x2f, 0xf));
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static const int amd_zenbleed[] =
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AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0x30, 0x0, 0x4f, 0xf),
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AMD_MODEL_RANGE(0x17, 0x60, 0x0, 0x7f, 0xf),
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AMD_MODEL_RANGE(0x17, 0x90, 0x0, 0x91, 0xf),
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AMD_MODEL_RANGE(0x17, 0xa0, 0x0, 0xaf, 0xf));
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static const int amd_div0[] =
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AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0x00, 0x0, 0x2f, 0xf),
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AMD_MODEL_RANGE(0x17, 0x50, 0x0, 0x5f, 0xf));
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@ -1059,11 +1053,8 @@ static bool cpu_has_zenbleed_microcode(void)
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return true;
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}
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static void zenbleed_check(struct cpuinfo_x86 *c)
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static void zen2_zenbleed_check(struct cpuinfo_x86 *c)
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{
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if (!cpu_has_amd_erratum(c, amd_zenbleed))
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return;
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if (cpu_has(c, X86_FEATURE_HYPERVISOR))
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return;
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@ -1084,6 +1075,7 @@ static void init_amd_zen2(struct cpuinfo_x86 *c)
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init_amd_zen_common();
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init_spectral_chicken(c);
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fix_erratum_1386(c);
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zen2_zenbleed_check(c);
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}
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static void init_amd_zen3(struct cpuinfo_x86 *c)
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@ -1227,8 +1219,6 @@ static void init_amd(struct cpuinfo_x86 *c)
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cpu_has(c, X86_FEATURE_AUTOIBRS))
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WARN_ON_ONCE(msr_set_bit(MSR_EFER, _EFER_AUTOIBRS));
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zenbleed_check(c);
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if (cpu_has_amd_erratum(c, amd_div0)) {
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pr_notice_once("AMD Zen1 DIV0 bug detected. Disable SMT for full protection.\n");
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setup_force_cpu_bug(X86_BUG_DIV0);
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@ -1393,7 +1383,7 @@ static void zenbleed_check_cpu(void *unused)
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{
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struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
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zenbleed_check(c);
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zen2_zenbleed_check(c);
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}
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void amd_check_microcode(void)
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