140 lines
4.4 KiB
C++
140 lines
4.4 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2015-2017 Stanislav Shwartsman
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// Written by Stanislav Shwartsman [sshwarts at sourceforge net]
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
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//
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/////////////////////////////////////////////////////////////////////////
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#include "bochs.h"
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#include "cpu.h"
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#include "pentium.h"
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#if BX_CPU_LEVEL >= 5
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#define LOG_THIS cpu->
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pentium_t::pentium_t(BX_CPU_C *cpu): bx_cpuid_t(cpu)
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{
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enable_cpu_extension(BX_ISA_X87);
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enable_cpu_extension(BX_ISA_486);
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enable_cpu_extension(BX_ISA_PENTIUM);
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enable_cpu_extension(BX_ISA_DEBUG_EXTENSIONS);
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enable_cpu_extension(BX_ISA_VME);
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#if BX_PHY_ADDRESS_LONG
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enable_cpu_extension(BX_ISA_PSE36);
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#endif
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enable_cpu_extension(BX_ISA_PSE);
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}
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void pentium_t::get_cpuid_leaf(Bit32u function, Bit32u subfunction, cpuid_function_t *leaf) const
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{
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switch(function) {
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case 0x00000000:
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get_std_cpuid_leaf_0(leaf);
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return;
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case 0x00000001:
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default:
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get_std_cpuid_leaf_1(leaf);
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return;
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}
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}
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// leaf 0x00000000 //
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void pentium_t::get_std_cpuid_leaf_0(cpuid_function_t *leaf) const
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{
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get_leaf_0(0x1, "GenuineIntel", leaf);
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}
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// leaf 0x00000001 //
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void pentium_t::get_std_cpuid_leaf_1(cpuid_function_t *leaf) const
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{
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// EAX: CPU Version Information
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// [3:0] Stepping ID
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// [7:4] Model: starts at 1
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// [11:8] Family: 4=486, 5=Pentium, 6=PPro, ...
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// [13:12] Type: 0=OEM, 1=overdrive, 2=dual cpu, 3=reserved
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// [19:16] Extended Model
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// [27:20] Extended Family
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leaf->eax = 0x00000543;
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leaf->ebx = 0;
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leaf->ecx = 0;
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// EDX: Standard Feature Flags
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// * [0:0] FPU on chip
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// * [1:1] VME: Virtual-8086 Mode enhancements
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// * [2:2] DE: Debug Extensions (I/O breakpoints)
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// * [3:3] PSE: Page Size Extensions
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// * [4:4] TSC: Time Stamp Counter
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// * [5:5] MSR: RDMSR and WRMSR support
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// [6:6] PAE: Physical Address Extensions
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// * [7:7] MCE: Machine Check Exception
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// * [8:8] CXS: CMPXCHG8B instruction
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// [9:9] APIC: APIC on Chip
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// [10:10] Reserved
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// [11:11] SYSENTER/SYSEXIT support
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// [12:12] MTRR: Memory Type Range Reg
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// [13:13] PGE/PTE Global Bit
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// [14:14] MCA: Machine Check Architecture
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// [15:15] CMOV: Cond Mov/Cmp Instructions
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// [16:16] PAT: Page Attribute Table
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// [17:17] PSE-36: Physical Address Extensions
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// [18:18] PSN: Processor Serial Number
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// [19:19] CLFLUSH: CLFLUSH Instruction support
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// [20:20] Reserved
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// [21:21] DS: Debug Store
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// [22:22] ACPI: Thermal Monitor and Software Controlled Clock Facilities
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// [23:23] MMX Technology
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// [24:24] FXSR: FXSAVE/FXRSTOR (also indicates CR4.OSFXSR is available)
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// [25:25] SSE: SSE Extensions
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// [26:26] SSE2: SSE2 Extensions
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// [27:27] Self Snoop
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// [28:28] Hyper Threading Technology
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// [29:29] TM: Thermal Monitor
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// [30:30] Reserved
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// [31:31] PBE: Pending Break Enable
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leaf->edx = BX_CPUID_STD_X87 |
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BX_CPUID_STD_VME |
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BX_CPUID_STD_DEBUG_EXTENSIONS |
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BX_CPUID_STD_PSE |
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BX_CPUID_STD_TSC |
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BX_CPUID_STD_MSR |
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BX_CPUID_STD_MCE |
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BX_CPUID_STD_CMPXCHG8B;
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#if BX_PHY_ADDRESS_LONG
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leaf->edx |= BX_CPUID_STD_PSE36;
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#endif
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#if BX_SUPPORT_APIC
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// if MSR_APICBASE APIC Global Enable bit has been cleared,
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// the CPUID feature flag for the APIC is set to 0.
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if (cpu->msr.apicbase & 0x800)
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leaf->edx |= BX_CPUID_STD_APIC; // APIC on chip
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#endif
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}
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void pentium_t::dump_cpuid(void) const
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{
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bx_cpuid_t::dump_cpuid(0x1, 0);
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}
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bx_cpuid_t *create_pentium_cpuid(BX_CPU_C *cpu) { return new pentium_t(cpu); }
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#endif
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