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cpuid: Add helper function for cpuid(1) functions

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This patch introduces 3 helper function for cpuid(1) :

1. cpu_get_cpuid() -> to get processor id (from cpuid.eax)
2. cpu_get_feature_flags_ecx -> to get processor feature flag (from cpuid.ecx)
3. cpu_get_feature_flags_edx -> to get processor feature flag (from cpuid.edx)

Above 3 helper functions are targeted to replace majority of cpuid(1)
references.

Change-Id: Ib96a7c79dadb1feff0b8d58aa408b355fbb3bc50
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/30123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Subrata Banik
2018-12-10 14:11:35 +05:30
parent e3110b8620
commit 53b08c347f
21 changed files with 142 additions and 86 deletions
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2
src/include/cpu/x86/msr.h
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@@ -22,6 +22,8 @@
#define SMRR_ENABLE (1 << 3)
#define CPUID_VMX (1 << 5)
#define CPUID_SMX (1 << 6)
#define CPUID_DCA (1 << 18)
#define CPUID_AES (1 << 25)
#define SGX_GLOBAL_ENABLE (1 << 18)
#define PLATFORM_INFO_SET_TDP (1 << 29)
#define IA32_BIOS_UPDT_TRIG 0x79