0affb29572
Depending on whether X2APIC is enabled or not, it will be safer to grab such ID from the right place. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
33 lines
730 B
C
33 lines
730 B
C
/*
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* Copyright (c) 2022 Intel Corp.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_ARCH_X86_CPUID_H_
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#define ZEPHYR_INCLUDE_ARCH_X86_CPUID_H_
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#ifndef _ASMLANGUAGE
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CPUID_BASIC_INFO_1 0x01
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#define CPUID_EXTENDED_FEATURES_LVL 0x07
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#define CPUID_EXTENDED_TOPOLOGY_ENUMERATION 0x0B
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#define CPUID_EXTENDED_TOPOLOGY_ENUMERATION_V2 0x1F
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/* Bits to check in CPUID extended features */
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#define CPUID_SPEC_CTRL_SSBD BIT(31)
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#define CPUID_SPEC_CTRL_IBRS BIT(26)
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uint32_t z_x86_cpuid_extended_features(void);
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uint8_t z_x86_cpuid_get_current_physical_apic_id(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_INCLUDE_ARCH_X86_CPUID_H_ */
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