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bf73cc4b 1/** @file\r
2 IA32 Local APIC Definitions.\r
3\r
4 Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>\r
5 This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#ifndef __LOCAL_APIC_H__\r
16#define __LOCAL_APIC_H__\r
17\r
18//\r
19// Definitions for IA32 architectural MSRs\r
20//\r
21#define MSR_IA32_APIC_BASE_ADDRESS 0x1B\r
22\r
23//\r
24// Definitions for CPUID instruction\r
25//\r
26#define CPUID_VERSION_INFO 0x1\r
27#define CPUID_EXTENDED_FUNCTION 0x80000000\r
28#define CPUID_VIR_PHY_ADDRESS_SIZE 0x80000008\r
29\r
30//\r
31// Definition for Local APIC registers and related values\r
32//\r
ae40aef1 33#define XAPIC_ID_OFFSET 0x20\r
34#define XAPIC_VERSION_OFFSET 0x30\r
bf73cc4b 35#define XAPIC_EOI_OFFSET 0x0b0\r
36#define XAPIC_ICR_DFR_OFFSET 0x0e0\r
37#define XAPIC_SPURIOUS_VECTOR_OFFSET 0x0f0\r
38#define XAPIC_ICR_LOW_OFFSET 0x300\r
39#define XAPIC_ICR_HIGH_OFFSET 0x310\r
40#define XAPIC_LVT_TIMER_OFFSET 0x320\r
ae40aef1 41#define XAPIC_LVT_LINT0_OFFSET 0x350\r
42#define XAPIC_LVT_LINT1_OFFSET 0x360\r
bf73cc4b 43#define XAPIC_TIMER_INIT_COUNT_OFFSET 0x380\r
44#define XAPIC_TIMER_CURRENT_COUNT_OFFSET 0x390\r
45#define XAPIC_TIMER_DIVIDE_CONFIGURATION_OFFSET 0x3E0\r
46\r
47#define X2APIC_MSR_BASE_ADDRESS 0x800\r
48#define X2APIC_MSR_ICR_ADDRESS 0x830\r
49\r
50#define LOCAL_APIC_DELIVERY_MODE_FIXED 0\r
51#define LOCAL_APIC_DELIVERY_MODE_LOWEST_PRIORITY 1\r
52#define LOCAL_APIC_DELIVERY_MODE_SMI 2\r
53#define LOCAL_APIC_DELIVERY_MODE_NMI 4\r
54#define LOCAL_APIC_DELIVERY_MODE_INIT 5\r
55#define LOCAL_APIC_DELIVERY_MODE_STARTUP 6\r
56#define LOCAL_APIC_DELIVERY_MODE_EXTINT 7\r
57\r
58#define LOCAL_APIC_DESTINATION_SHORTHAND_NO_SHORTHAND 0\r
59#define LOCAL_APIC_DESTINATION_SHORTHAND_SELF 1\r
60#define LOCAL_APIC_DESTINATION_SHORTHAND_ALL_INCLUDING_SELF 2\r
61#define LOCAL_APIC_DESTINATION_SHORTHAND_ALL_EXCLUDING_SELF 3\r
62\r
63typedef union {\r
64 struct {\r
65 UINT64 Reserved0:8; ///< Reserved.\r
66 UINT64 Bsp:1; ///< Processor is BSP.\r
67 UINT64 Reserved1:1; ///< Reserved.\r
68 UINT64 Extd:1; ///< Enable x2APIC mode.\r
69 UINT64 En:1; ///< xAPIC global enable/disable.\r
70 UINT64 ApicBase:52; ///< APIC Base physical address. The actual field width depends on physical address width.\r
71 } Bits;\r
72 UINT64 Uint64;\r
73} MSR_IA32_APIC_BASE;\r
74\r
ae40aef1 75//\r
76// Local APIC Version Register.\r
77//\r
78typedef union {\r
79 struct {\r
80 UINT32 Version:8; ///< The version numbers of the local APIC.\r
81 UINT32 Reserved0:8; ///< Reserved.\r
82 UINT32 MaxLvtEntry:8; ///< Number of LVT entries minus 1.\r
83 UINT32 EoiBroadcastSuppression:1; ///< 1 if EOI-broadcast suppression supported.\r
84 UINT32 Reserved1:7; ///< Reserved.\r
85 } Bits;\r
86 UINT32 Uint32;\r
87} LOCAL_APIC_VERSION;\r
88\r
bf73cc4b 89//\r
90// Low half of Interrupt Command Register (ICR).\r
91//\r
92typedef union {\r
93 struct {\r
94 UINT32 Vector:8; ///< The vector number of the interrupt being sent.\r
95 UINT32 DeliveryMode:3; ///< Specifies the type of IPI to be sent.\r
96 UINT32 DestinationMode:1; ///< 0: physical destination mode, 1: logical destination mode.\r
97 UINT32 DeliveryStatus:1; ///< Indicates the IPI delivery status. This field is reserved in x2APIC mode.\r
98 UINT32 Reserved0:1; ///< Reserved.\r
99 UINT32 Level:1; ///< 0 for the INIT level de-assert delivery mode. Otherwise 1.\r
100 UINT32 TriggerMode:1; ///< 0: edge, 1: level when using the INIT level de-assert delivery mode.\r
101 UINT32 Reserved1:2; ///< Reserved.\r
102 UINT32 DestinationShorthand:2; ///< A shorthand notation to specify the destination of the interrupt.\r
103 UINT32 Reserved2:12; ///< Reserved.\r
104 } Bits;\r
105 UINT32 Uint32;\r
106} LOCAL_APIC_ICR_LOW;\r
107\r
108//\r
109// High half of Interrupt Command Register (ICR)\r
110//\r
111typedef union {\r
112 struct {\r
113 UINT32 Reserved0:24; ///< Reserved.\r
114 UINT32 Destination:8; ///< Specifies the target processor or processors in xAPIC mode.\r
115 } Bits;\r
116 UINT32 Uint32; ///< Destination field expanded to 32-bit in x2APIC mode.\r
117} LOCAL_APIC_ICR_HIGH;\r
118\r
119//\r
120// Spurious-Interrupt Vector Register (SVR)\r
121//\r
122typedef union {\r
123 struct {\r
124 UINT32 SpuriousVector:8; ///< Spurious Vector.\r
125 UINT32 SoftwareEnable:1; ///< APIC Software Enable/Disable.\r
126 UINT32 FocusProcessorChecking:1; ///< Focus Processor Checking.\r
127 UINT32 Reserved0:2; ///< Reserved.\r
128 UINT32 EoiBroadcastSuppression:1; ///< EOI-Broadcast Suppression.\r
129 UINT32 Reserved1:19; ///< Reserved.\r
130 } Bits;\r
131 UINT32 Uint32;\r
132} LOCAL_APIC_SVR;\r
133\r
134//\r
135// Divide Configuration Register (DCR)\r
136//\r
137typedef union {\r
138 struct {\r
139 UINT32 DivideValue1:2; ///< Low 2 bits of the divide value.\r
140 UINT32 Reserved0:1; ///< Always 0.\r
141 UINT32 DivideValue2:1; ///< Highest 1 bit of the divide value.\r
142 UINT32 Reserved1:28; ///< Reserved.\r
143 } Bits;\r
144 UINT32 Uint32;\r
145} LOCAL_APIC_DCR;\r
146\r
147//\r
148// LVT Timer Register\r
149//\r
150typedef union {\r
151 struct {\r
152 UINT32 Vector:8; ///< The vector number of the interrupt being sent.\r
153 UINT32 Reserved0:4; ///< Reserved.\r
154 UINT32 DeliveryStatus:1; ///< 0: Idle, 1: send pending.\r
155 UINT32 Reserved1:3; ///< Reserved.\r
156 UINT32 Mask:1; ///< 0: Not masked, 1: Masked.\r
157 UINT32 TimerMode:1; ///< 0: One-shot, 1: Periodic.\r
158 UINT32 Reserved2:14; ///< Reserved.\r
159 } Bits;\r
160 UINT32 Uint32;\r
161} LOCAL_APIC_LVT_TIMER;\r
162\r
163//\r
164// LVT LINT0/LINT1 Register\r
165//\r
166typedef union {\r
167 struct {\r
168 UINT32 Vector:8; ///< The vector number of the interrupt being sent.\r
169 UINT32 DeliveryMode:3; ///< Specifies the type of interrupt to be sent.\r
170 UINT32 Reserved0:1; ///< Reserved.\r
171 UINT32 DeliveryStatus:1; ///< 0: Idle, 1: send pending.\r
172 UINT32 InputPinPolarity:1; ///< Interrupt Input Pin Polarity.\r
173 UINT32 RemoteIrr:1; ///< RO. Set when the local APIC accepts the interrupt and reset when an EOI is received.\r
174 UINT32 TriggerMode:1; ///< 0:edge, 1:level.\r
175 UINT32 Mask:1; ///< 0: Not masked, 1: Masked.\r
176 UINT32 Reserved1:15; ///< Reserved.\r
177 } Bits;\r
178 UINT32 Uint32;\r
179} LOCAL_APIC_LVT_LINT;\r
180\r
181#endif\r
182\r