4 #include <palacios/vmm_types.h>
5 #include <palacios/vm_guest.h>
7 #define VMCB_CTRL_AREA_OFFSET 0x0
8 #define VMCB_STATE_SAVE_AREA_OFFSET 0x400
11 #define GET_VMCB_CTRL_AREA(page) (page + VMCB_CTRL_AREA_OFFSET)
12 #define GET_VMCB_SAVE_STATE_AREA(page) (page + VMCB_STATE_SAVE_AREA_OFFSET)
18 #define PACKED __attribute__((packed))
25 struct Ctrl_Registers {
26 uint_t cr0 : 1 PACKED;
27 uint_t cr1 : 1 PACKED;
28 uint_t cr2 : 1 PACKED;
29 uint_t cr3 : 1 PACKED;
30 uint_t cr4 : 1 PACKED;
31 uint_t cr5 : 1 PACKED;
32 uint_t cr6 : 1 PACKED;
33 uint_t cr7 : 1 PACKED;
34 uint_t cr8 : 1 PACKED;
35 uint_t cr9 : 1 PACKED;
36 uint_t cr10 : 1 PACKED;
37 uint_t cr11 : 1 PACKED;
38 uint_t cr12 : 1 PACKED;
39 uint_t cr13 : 1 PACKED;
40 uint_t cr14 : 1 PACKED;
41 uint_t cr15 : 1 PACKED;
45 struct Debug_Registers {
46 uint_t dr0 : 1 PACKED;
47 uint_t dr1 : 1 PACKED;
48 uint_t dr2 : 1 PACKED;
49 uint_t dr3 : 1 PACKED;
50 uint_t dr4 : 1 PACKED;
51 uint_t dr5 : 1 PACKED;
52 uint_t dr6 : 1 PACKED;
53 uint_t dr7 : 1 PACKED;
54 uint_t dr8 : 1 PACKED;
55 uint_t dr9 : 1 PACKED;
56 uint_t dr10 : 1 PACKED;
57 uint_t dr11 : 1 PACKED;
58 uint_t dr12 : 1 PACKED;
59 uint_t dr13 : 1 PACKED;
60 uint_t dr14 : 1 PACKED;
61 uint_t dr15 : 1 PACKED;
65 struct Exception_Vectors {
66 uint_t de : 1 PACKED; // (0) divide by zero
67 uint_t db : 1 PACKED; // (1) Debug
68 uint_t nmi : 1 PACKED; // (2) Non-maskable interrupt
69 uint_t bp : 1 PACKED; // (3) Breakpoint
70 uint_t of : 1 PACKED; // (4) Overflow
71 uint_t br : 1 PACKED; // (5) Bound-Range
72 uint_t ud : 1 PACKED; // (6) Invalid-Opcode
73 uint_t nm : 1 PACKED; // (7) Device-not-available
74 uint_t df : 1 PACKED; // (8) Double Fault
75 uint_t ex9 : 1 PACKED;
76 uint_t ts : 1 PACKED; // (10) Invalid TSS
77 uint_t np : 1 PACKED; // (11) Segment-not-present
78 uint_t ss : 1 PACKED; // (12) Stack
79 uint_t gp : 1 PACKED; // (13) General Protection Fault
80 uint_t pf : 1 PACKED; // (14) Page fault
81 uint_t ex15 : 1 PACKED;
82 uint_t mf : 1 PACKED; // (15) Floating point exception
83 uint_t ac : 1 PACKED; // (16) Alignment-check
84 uint_t mc : 1 PACKED; // (17) Machine Check
85 uint_t xf : 1 PACKED; // (18) SIMD floating-point
86 uint_t ex20 : 1 PACKED;
87 uint_t ex21 : 1 PACKED;
88 uint_t ex22 : 1 PACKED;
89 uint_t ex23 : 1 PACKED;
90 uint_t ex24 : 1 PACKED;
91 uint_t ex25 : 1 PACKED;
92 uint_t ex26 : 1 PACKED;
93 uint_t ex27 : 1 PACKED;
94 uint_t ex28 : 1 PACKED;
95 uint_t ex29 : 1 PACKED;
96 uint_t sx : 1 PACKED; // (30) Security Exception
97 uint_t ex31 : 1 PACKED;
101 struct Instr_Intercepts {
102 uint_t INTR : 1 PACKED;
103 uint_t NMI : 1 PACKED;
104 uint_t SMI : 1 PACKED;
105 uint_t INIT : 1 PACKED;
106 uint_t VINTR : 1 PACKED;
107 uint_t CR0 : 1 PACKED;
108 uint_t RD_IDTR : 1 PACKED;
109 uint_t RD_GDTR : 1 PACKED;
110 uint_t RD_LDTR : 1 PACKED;
111 uint_t RD_TR : 1 PACKED;
112 uint_t WR_IDTR : 1 PACKED;
113 uint_t WR_GDTR : 1 PACKED;
114 uint_t WR_LDTR : 1 PACKED;
115 uint_t WR_TR : 1 PACKED;
116 uint_t RDTSC : 1 PACKED;
117 uint_t RDPMC : 1 PACKED;
118 uint_t PUSHF : 1 PACKED;
119 uint_t POPF : 1 PACKED;
120 uint_t CPUID : 1 PACKED;
121 uint_t RSM : 1 PACKED;
122 uint_t IRET : 1 PACKED;
123 uint_t INTn : 1 PACKED;
124 uint_t INVD : 1 PACKED;
125 uint_t PAUSE : 1 PACKED;
126 uint_t HLT : 1 PACKED;
127 uint_t INVLPG : 1 PACKED;
128 uint_t INVLPGA : 1 PACKED;
129 uint_t IOIO_PROT : 1 PACKED;
130 uint_t MSR_PROT : 1 PACKED;
131 uint_t task_switch : 1 PACKED;
132 uint_t FERR_FREEZE : 1 PACKED;
133 uint_t shutdown_evts: 1 PACKED;
136 struct SVM_Instr_Intercepts {
137 uint_t VMRUN : 1 PACKED;
138 uint_t VMMCALL : 1 PACKED;
139 uint_t VMLOAD : 1 PACKED;
140 uint_t VMSAVE : 1 PACKED;
141 uint_t STGI : 1 PACKED;
142 uint_t CLGI : 1 PACKED;
143 uint_t SKINIT : 1 PACKED;
144 uint_t RDTSCP : 1 PACKED;
145 uint_t ICEBP : 1 PACKED;
146 uint_t WBINVD : 1 PACKED;
147 uint_t MONITOR : 1 PACKED;
148 uint_t MWAIT_always : 1 PACKED;
149 uint_t MWAIT_if_armed : 1 PACKED;
150 uint_t reserved : 19 PACKED; // Should be 0
154 struct Guest_Control {
155 uchar_t V_TPR PACKED;
156 uint_t V_IRQ : 1 PACKED;
157 uint_t rsvd1 : 7 PACKED; // Should be 0
158 uint_t V_INTR_PRIO : 4 PACKED;
159 uint_t V_IGN_TPR : 1 PACKED;
160 uint_t rsvd2 : 3 PACKED; // Should be 0
161 uint_t V_INTR_MASKING : 1 PACKED;
162 uint_t rsvd3 : 7 PACKED; // Should be 0
163 uchar_t V_INTR_VECTOR PACKED;
164 uint_t rsvd4 : 24 PACKED; // Should be 0
167 #define SVM_INJECTION_EXTERNAL_INTR 0
168 #define SVM_INJECTION_VIRTUAL_INTR 0
169 #define SVM_INJECTION_NMI 2
170 #define SVM_INJECTION_EXCEPTION 3
171 #define SVM_INJECTION_SOFT_INTR 4
173 struct Interrupt_Info {
174 uint_t vector : 8 PACKED;
175 uint_t type : 3 PACKED;
176 uint_t ev : 1 PACKED;
177 uint_t rsvd : 19 PACKED;
178 uint_t valid : 1 PACKED;
179 uint_t error_code : 32 PACKED;
183 typedef struct VMCB_Control_Area {
185 struct Ctrl_Registers cr_reads PACKED;
186 struct Ctrl_Registers cr_writes PACKED;
187 struct Debug_Registers dr_reads PACKED;
188 struct Debug_Registers dr_writes PACKED;
189 struct Exception_Vectors exceptions PACKED;
190 struct Instr_Intercepts instrs PACKED;
191 struct SVM_Instr_Intercepts svm_instrs PACKED;
193 uchar_t rsvd1[44] PACKED; // Should be 0
196 ullong_t IOPM_BASE_PA PACKED;
197 ullong_t MSRPM_BASE_PA PACKED;
198 ullong_t TSC_OFFSET PACKED;
200 uint_t guest_ASID PACKED;
201 uchar_t TLB_CONTROL PACKED;
203 uchar_t rsvd2[3] PACKED; // Should be 0
205 struct Guest_Control guest_ctrl PACKED;
207 uint_t interrupt_shadow : 1 PACKED;
208 uint_t rsvd3 : 31 PACKED; // Should be 0
209 uint_t rsvd4 PACKED; // Should be 0
211 ullong_t exit_code PACKED;
212 ullong_t exit_info1 PACKED;
213 ullong_t exit_info2 PACKED;
215 /* This could be a typo in the manual....
216 * It doesn't actually say that there is a reserved bit
217 * But it does say that the EXITINTINFO field is in bits 63-1
218 * ALL other occurances mention a 1 bit reserved field
220 // uint_t rsvd5 : 1 PACKED;
221 //ullong_t exit_int_info : 63 PACKED;
224 // AMD Manual 2, pg 391, sect: 15.19
225 struct Interrupt_Info exit_int_info PACKED;
227 // uint_t NP_ENABLE : 1 PACKED;
228 //ullong_t rsvd6 : 63 PACKED; // Should be 0
229 ullong_t NP_ENABLE PACKED;
231 uchar_t rsvd7[16] PACKED; // Should be 0
234 struct Interrupt_Info EVENTINJ PACKED;
237 /* This could be a typo in the manual....
238 * It doesn't actually say that there is a reserved bit
239 * But it does say that the EXITINTINFO field is in bits 63-1
240 * ALL other occurances mention a 1 bit reserved field
242 // uint_t rsvd8 : 1 PACKED;
243 //ullong_t N_CR3 : 63 PACKED;
244 ullong_t N_CR3 PACKED;
248 uint_t LBR_VIRTUALIZATION_ENABLE : 1 PACKED;
249 ullong_t rsvd9 : 63 PACKED; // Should be 0
258 struct vmcb_selector {
259 ushort_t selector PACKED;
261 /* These attributes are basically a direct map of the attribute fields of a segment desc.
262 * The segment limit in the middle is removed and the fields are fused together
263 * There IS empty space at the end... See AMD Arch vol3, sect. 4.7.1, pg 78
268 uint_t type : 4 PACKED; // segment type, [see Intel vol. 3b, sect. 3.4.5.1 (because I have the books)]
269 uint_t S : 1 PACKED; // System=0, code/data=1
270 uint_t dpl : 2 PACKED; // priviledge level, corresonds to protection ring
271 uint_t P : 1 PACKED; // present flag
272 uint_t avl : 1 PACKED; // available for use by system software
273 uint_t L : 1 PACKED; // long mode (64 bit?)
274 uint_t db : 1 PACKED; // default op size (0=16 bit seg, 1=32 bit seg)
275 uint_t G : 1 PACKED; // Granularity, (0=bytes, 1=4k)
276 uint_t rsvd : 4 PACKED;
280 ullong_t base PACKED;
284 typedef struct VMCB_State_Save_Area {
285 struct vmcb_selector es PACKED; // only lower 32 bits of base are implemented
286 struct vmcb_selector cs PACKED; // only lower 32 bits of base are implemented
287 struct vmcb_selector ss PACKED; // only lower 32 bits of base are implemented
288 struct vmcb_selector ds PACKED; // only lower 32 bits of base are implemented
289 struct vmcb_selector fs PACKED;
290 struct vmcb_selector gs PACKED;
292 struct vmcb_selector gdtr PACKED; // selector+attrib are reserved, only lower 16 bits of limit are implemented
293 struct vmcb_selector ldtr PACKED;
294 struct vmcb_selector idtr PACKED; // selector+attrib are reserved, only lower 16 bits of limit are implemented
295 struct vmcb_selector tr PACKED;
297 uchar_t rsvd1[43] PACKED;
300 uchar_t cpl PACKED; // if the guest is real-mode then the CPL is forced to 0
301 // if the guest is virtual-mode then the CPL is forced to 3
306 ullong_t efer PACKED;
308 uchar_t rsvd3[112] PACKED;
316 ullong_t rflags PACKED;
319 uchar_t rsvd4[88] PACKED;
324 uchar_t rsvd5[24] PACKED;
328 ullong_t star PACKED;
329 ullong_t lstar PACKED;
330 ullong_t cstar PACKED;
331 ullong_t sfmask PACKED;
332 ullong_t KernelGsBase PACKED;
333 ullong_t sysenter_cs PACKED;
334 ullong_t sysenter_esp PACKED;
335 ullong_t sysenter_eip PACKED;
339 uchar_t rsvd6[32] PACKED;
342 ullong_t g_pat PACKED; // Guest PAT
343 // -- only used if nested paging is enabled
344 ullong_t dbgctl PACKED; // Guest DBGCTL MSR
345 // -- only used if the LBR registers are virtualized
346 ullong_t br_from PACKED; // Guest LastBranchFromIP MSR
347 // -- only used if the LBR registers are virtualized
348 ullong_t br_to PACKED; // Guest LastBranchToIP MSR
349 // -- only used if the LBR registers are virtualized
350 ullong_t lastexcpfrom PACKED; // Guest LastExceptionFromIP MSR
351 // -- only used if the LBR registers are virtualized
352 ullong_t lastexcpto PACKED; // Guest LastExceptionToIP MSR
353 // -- only used if the LBR registers are virtualized
355 } vmcb_saved_state_t;
357 void PrintDebugVMCB(vmcb_t * vmcb);
360 void set_vmcb_segments(vmcb_t * vmcb, struct v3_segments * segs);
361 void get_vmcb_segments(vmcb_t * vmcb, struct v3_segments * segs);