| // Copyright 2020 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <lib/arch/x86/boot-cpuid.h> |
| |
| namespace arch { |
| namespace internal { |
| |
| // The zeroth basic, hypervisor, and extended leaves (0, 0x4000'0000, and |
| // 0x8000'0000) are handled specially in InitializeBootCpuid itself. |
| // Note that they are not in the special section. |
| CpuidIo gBootCpuid0 = kBootCpuidInitializer<CpuidMaximumLeaf::kLeaf>; |
| CpuidIo gBootCpuidHyp0 = kBootCpuidInitializer<CpuidMaximumHypervisorLeaf::kLeaf>; |
| CpuidIo gBootCpuidExt0 = kBootCpuidInitializer<CpuidMaximumExtendedLeaf::kLeaf>; |
| |
| // These leaves are used from assembly code that needs unmangled names for |
| // them, but InitializeBootCpuid handles them like implicit instantiations. |
| |
| [[gnu::section("BootCpuid")]] alignas(uint32_t) CpuidIo gBootCpuidFeature = |
| kBootCpuidInitializer<CpuidFeatureFlagsC::kLeaf>; |
| |
| [[gnu::section("BootCpuid")]] alignas(uint32_t) CpuidIo gBootCpuidExtf = |
| kBootCpuidInitializer<CpuidExtendedFeatureFlagsB::kLeaf>; |
| |
| } // namespace internal |
| } // namespace arch |
