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34120fc4c1
In order to allow the bootloader to do preliminary CPUID validation while UEFI is still handling displaying information to the user, split most of the kernel's CPUID handling into a library to be used by both kernel and boot.
32 lines
937 B
C++
32 lines
937 B
C++
#include <stdint.h>
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#include "kutil/assert.h"
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#include "kutil/memory.h"
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#include "cpu.h"
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#include "cpu/cpu.h"
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#include "log.h"
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cpu_data bsp_cpu_data;
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void
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cpu_validate()
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{
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cpu::cpu_id cpu;
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log::info(logs::boot, "CPU: %s", cpu.brand_name());
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log::debug(logs::boot, " Vendor is %s", cpu.vendor_id());
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log::debug(logs::boot, " Higest basic CPUID: 0x%02x", cpu.highest_basic());
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log::debug(logs::boot, " Higest ext CPUID: 0x%02x", cpu.highest_ext() & ~cpu::cpu_id::cpuid_extended);
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#define CPU_FEATURE_OPT(name, ...) \
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log::debug(logs::boot, " Supports %9s: %s", #name, cpu.has_feature(cpu::feature::name) ? "yes" : "no");
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#define CPU_FEATURE_REQ(name, feat_leaf, feat_sub, regname, bit) \
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CPU_FEATURE_OPT(name, feat_leaf, feat_sub, regname, bit); \
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kassert(cpu.has_feature(cpu::feature::name), "Missing required CPU feature " #name );
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#include "cpu/features.inc"
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#undef CPU_FEATURE_OPT
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#undef CPU_FEATURE_REQ
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}
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