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Diffstat (limited to '')
| -rw-r--r-- | include/VBox/apic.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/VBox/apic.h b/include/VBox/apic.h new file mode 100644 index 00000000..83d2ff42 --- /dev/null +++ b/include/VBox/apic.h @@ -0,0 +1,79 @@ +/** @file + * X86 (and AMD64) Local APIC registers (VMM,++). + * + * apic.mac is generated from this file by running 'kmk incs' in the root. + */ + +/* + * Copyright (C) 2010-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_apic_h +#define VBOX_INCLUDED_apic_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/types.h> + +#define APIC_REG_VERSION 0x0030 +#define APIC_REG_VERSION_GET_VER(u32) (u32 & 0xff) +#define APIC_REG_VERSION_GET_MAX_LVT(u32) ((u32 & 0xff0000) >> 16) + +/* Defines according to Figure 10-8 of the Intel Software Developers Manual Vol 3A */ +#define APIC_REG_LVT_LINT0 0x0350 +#define APIC_REG_LVT_LINT1 0x0360 +#define APIC_REG_LVT_ERR 0x0370 +#define APIC_REG_LVT_PC 0x0340 +#define APIC_REG_LVT_THMR 0x0330 +#define APIC_REG_LVT_CMCI 0x02F0 +#define APIC_REG_EILVT0 0x0500 +#define APIC_REG_EILVT1 0x0510 +#define APIC_REG_EILVT2 0x0520 +#define APIC_REG_EILVT3 0x0530 +#define APIC_REG_LVT_MODE_MASK (RT_BIT(8) | RT_BIT(9) | RT_BIT(10)) +#define APIC_REG_LVT_MODE_FIXED 0 +#define APIC_REG_LVT_MODE_NMI RT_BIT(10) +#define APIC_REG_LVT_MODE_EXTINT (RT_BIT(8) | RT_BIT(9) | RT_BIT(10)) +#define APIC_REG_LVT_PIN_POLARIY RT_BIT(13) +#define APIC_REG_LVT_REMOTE_IRR RT_BIT(14) +#define APIC_REG_LVT_LEVEL_TRIGGER RT_BIT(15) +#define APIC_REG_LVT_MASKED RT_BIT(16) + +DECLINLINE(uint32_t) ApicRegRead(void *pvBase, uint32_t offReg) +{ + return *(const volatile uint32_t *)((uintptr_t)pvBase + offReg); +} + + +#ifdef IPRT_INCLUDED_asm_amd64_x86_h +/** + * Reads an X2APIC register. + * + * @param offReg MMIO offset, APIC_REG_XXX. + */ +DECLINLINE(uint32_t) ApicX2RegRead32(uint32_t offReg) +{ + return ASMRdMsr((offReg >> 4) + MSR_IA32_X2APIC_START); +} +#endif + +#endif /* !VBOX_INCLUDED_apic_h */ + |