#ifndef __VMCB_H #define __VMCB_H #include #define VMCB_CTRL_AREA_OFFSET 0x0 #define VMCB_STATE_SAVE_AREA_OFFSET 0x400 #define GET_VMCB_CTRL_AREA(page) (page + VMCB_CTRL_AREA_OFFSET) #define GET_VMCB_SAVE_STATE_AREA(page) (page + VMCB_STATE_SAVE_AREA_OFFSET) #if __TINYC__ #define PACKED #else #define PACKED __attribute__((packed)) #endif typedef void vmcb_t; union Ctrl_Registers { ushort_t bitmap PACKED; struct { uint_t cr0 : 1 PACKED; uint_t cr1 : 1 PACKED; uint_t cr2 : 1 PACKED; uint_t cr3 : 1 PACKED; uint_t cr4 : 1 PACKED; uint_t cr5 : 1 PACKED; uint_t cr6 : 1 PACKED; uint_t cr7 : 1 PACKED; uint_t cr8 : 1 PACKED; uint_t cr9 : 1 PACKED; uint_t cr10 : 1 PACKED; uint_t cr11 : 1 PACKED; uint_t cr12 : 1 PACKED; uint_t cr13 : 1 PACKED; uint_t cr14 : 1 PACKED; uint_t cr15 : 1 PACKED; } crs; }; union Debug_Registers { ushort_t bitmap PACKED; struct { uint_t dr0 : 1 PACKED; uint_t dr1 : 1 PACKED; uint_t dr2 : 1 PACKED; uint_t dr3 : 1 PACKED; uint_t dr4 : 1 PACKED; uint_t dr5 : 1 PACKED; uint_t dr6 : 1 PACKED; uint_t dr7 : 1 PACKED; uint_t dr8 : 1 PACKED; uint_t dr9 : 1 PACKED; uint_t dr10 : 1 PACKED; uint_t dr11 : 1 PACKED; uint_t dr12 : 1 PACKED; uint_t dr13 : 1 PACKED; uint_t dr14 : 1 PACKED; uint_t dr15 : 1 PACKED; } drs; }; union Exception_Vectors { uint_t bitmap PACKED; struct { uint_t ex0 : 1 PACKED; uint_t ex1 : 1 PACKED; uint_t ex2 : 1 PACKED; uint_t ex3 : 1 PACKED; uint_t ex4 : 1 PACKED; uint_t ex5 : 1 PACKED; uint_t ex6 : 1 PACKED; uint_t ex7 : 1 PACKED; uint_t ex8 : 1 PACKED; uint_t ex9 : 1 PACKED; uint_t ex10 : 1 PACKED; uint_t ex11 : 1 PACKED; uint_t ex12 : 1 PACKED; uint_t ex13 : 1 PACKED; uint_t ex14 : 1 PACKED; uint_t ex15 : 1 PACKED; uint_t ex16 : 1 PACKED; uint_t ex17 : 1 PACKED; uint_t ex18 : 1 PACKED; uint_t ex19 : 1 PACKED; uint_t ex20 : 1 PACKED; uint_t ex21 : 1 PACKED; uint_t ex22 : 1 PACKED; uint_t ex23 : 1 PACKED; uint_t ex24 : 1 PACKED; uint_t ex25 : 1 PACKED; uint_t ex26 : 1 PACKED; uint_t ex27 : 1 PACKED; uint_t ex28 : 1 PACKED; uint_t ex29 : 1 PACKED; uint_t ex30 : 1 PACKED; uint_t ex31 : 1 PACKED; } ex_numbers; struct { uint_t de : 1 PACKED; // divide by zero uint_t db : 1 PACKED; // Debug uint_t nmi : 1 PACKED; // Non-maskable interrupt uint_t bp : 1 PACKED; // Breakpoint uint_t of : 1 PACKED; // Overflow uint_t br : 1 PACKED; // Bound-Range uint_t ud : 1 PACKED; // Invalid-Opcode uint_t nm : 1 PACKED; // Device-not-available uint_t df : 1 PACKED; // Double Fault uint_t ex9 : 1 PACKED; uint_t ts : 1 PACKED; // Invalid TSS uint_t np : 1 PACKED; // Segment-not-present uint_t ss : 1 PACKED; // Stack uint_t gp : 1 PACKED; // General Protection Fault uint_t pf : 1 PACKED; // Page fault uint_t ex15 : 1 PACKED; uint_t mf : 1 PACKED; // Floating point exception uint_t ac : 1 PACKED; // Alignment-check uint_t mc : 1 PACKED; // Machine Check uint_t xf : 1 PACKED; // SIMD floating-point uint_t ex20 : 1 PACKED; uint_t ex21 : 1 PACKED; uint_t ex22 : 1 PACKED; uint_t ex23 : 1 PACKED; uint_t ex24 : 1 PACKED; uint_t ex25 : 1 PACKED; uint_t ex26 : 1 PACKED; uint_t ex27 : 1 PACKED; uint_t ex28 : 1 PACKED; uint_t ex29 : 1 PACKED; uint_t sx : 1 PACKED; // Security Exception uint_t ex31 : 1 PACKED; } ex_names; }; union Instr_Intercepts { uint_t bitmap PACKED; struct { uint_t INTR : 1 PACKED; uint_t NMI : 1 PACKED; uint_t SMI : 1 PACKED; uint_t INIT : 1 PACKED; uint_t VINTR : 1 PACKED; uint_t CR0 : 1 PACKED; uint_t RD_IDTR : 1 PACKED; uint_t RD_GDTR : 1 PACKED; uint_t RD_LDTR : 1 PACKED; uint_t RD_TR : 1 PACKED; uint_t WR_IDTR : 1 PACKED; uint_t WR_GDTR : 1 PACKED; uint_t WR_LDTR : 1 PACKED; uint_t WR_TR : 1 PACKED; uint_t RDTSC : 1 PACKED; uint_t RDPMC : 1 PACKED; uint_t PUSHF : 1 PACKED; uint_t POPF : 1 PACKED; uint_t CPUID : 1 PACKED; uint_t RSM : 1 PACKED; uint_t IRET : 1 PACKED; uint_t INTn : 1 PACKED; uint_t INVD : 1 PACKED; uint_t PAUSE : 1 PACKED; uint_t HLT : 1 PACKED; uint_t INVLPG : 1 PACKED; uint_t INVLPGA : 1 PACKED; uint_t IOIO_PROT : 1 PACKED; uint_t MSR_PROT : 1 PACKED; uint_t task_switch : 1 PACKED; uint_t FERR_FREEZE : 1 PACKED; uint_t shutdown_evts: 1 PACKED; } instrs; }; union SVM_Instr_Intercepts { uint_t bitmap PACKED; struct { uint_t VMRUN : 1 PACKED; uint_t VMMCALL : 1 PACKED; uint_t VMLOAD : 1 PACKED; uint_t VMSAVE : 1 PACKED; uint_t STGI : 1 PACKED; uint_t CLGI : 1 PACKED; uint_t SKINIT : 1 PACKED; uint_t RDTSCP : 1 PACKED; uint_t ICEBP : 1 PACKED; uint_t WBINVD : 1 PACKED; uint_t MONITOR : 1 PACKED; uint_t MWAIT_always : 1 PACKED; uint_t MWAIT_if_armed : 1 PACKED; uint_t reserved : 19 PACKED; // Should be 0 } instrs; }; union Guest_Control { uint_t bitmap PACKED; struct { uchar_t V_TPR PACKED; uint_t V_IRQ : 1 PACKED; uint_t rsvd1 : 7 PACKED; // Should be 0 uint_t V_INTR_PRIO : 4 PACKED; uint_t V_IGN_TPR : 1 PACKED; uint_t rsvd2 : 3 PACKED; // Should be 0 uint_t V_INTR_MASKING : 1 PACKED; uint_t rsvd3 : 7 PACKED; // Should be 0 uchar_t V_INTR_VECTOR PACKED; uint_t rsvd4 : 24 PACKED; // Should be 0 } ctrls; }; typedef struct VMCB_Control_Area { // offset 0x0 union Ctrl_Registers cr_reads PACKED; union Ctrl_Registers cr_writes PACKED; union Debug_Registers dr_reads PACKED; union Debug_Registers dr_writes PACKED; union Exception_Vectors exceptions PACKED; union Instr_Intercepts instrs PACKED; union SVM_Instr_Intercepts svm_instrs PACKED; uchar_t rsvd1[44] PACKED; // Should be 0 // offset 0x040 ullong_t IOPM_BASE_PA PACKED; ullong_t MSRPM_BASE_PA PACKED; ullong_t TSC_OFFSET PACKED; uint_t guest_ASID PACKED; uchar_t TLB_CONTROL PACKED; uchar_t rsvd2[3] PACKED; // Should be 0 union Guest_Control guest_ctrl PACKED; uint_t interrupt_shadow : 1 PACKED; uint_t rsvd3 : 31 PACKED; // Should be 0 uint_t rsvd4 PACKED; // Should be 0 ullong_t exit_code PACKED; ullong_t exit_info1 PACKED; ullong_t exit_info2 PACKED; /* This could be a typo in the manual.... * It doesn't actually say that there is a reserved bit * But it does say that the EXITINTINFO field is in bits 63-1 * ALL other occurances mention a 1 bit reserved field */ uint_t rsvd5 : 1 PACKED; ullong_t exit_int_info : 63 PACKED; /* ** */ // uint_t NP_ENABLE : 1 PACKED; //ullong_t rsvd6 : 63 PACKED; // Should be 0 ullong_t NP_ENABLE PACKED; uchar_t rsvd7[16] PACKED; // Should be 0 // Offset 0xA8 ullong_t EVENTINJ PACKED; /* This could be a typo in the manual.... * It doesn't actually say that there is a reserved bit * But it does say that the EXITINTINFO field is in bits 63-1 * ALL other occurances mention a 1 bit reserved field */ // uint_t rsvd8 : 1 PACKED; //ullong_t N_CR3 : 63 PACKED; ullong_t N_CR3 PACKED; /* ** */ uint_t LBR_VIRTUALIZATION_ENABLE : 1 PACKED; ullong_t rsvd9 : 63 PACKED; // Should be 0 } vmcb_ctrl_t; struct vmcb_selector { ushort_t selector PACKED; /* These attributes are basically a direct map of the attribute fields of a segment desc. * The segment limit in the middle is removed and the fields are fused together * There IS empty space at the end... See AMD Arch vol3, sect. 4.7.1, pg 78 */ union { ushort_t raw PACKED; struct { uint_t type : 4 PACKED; // segment type, [see Intel vol. 3b, sect. 3.4.5.1 (because I have the books)] uint_t S : 1 PACKED; // System=0, code/data=1 uint_t dpl : 2 PACKED; // priviledge level, corresonds to protection ring uint_t P : 1 PACKED; // present flag uint_t avl : 1 PACKED; // available for use by system software uint_t L : 1 PACKED; // long mode (64 bit?) uint_t db : 1 PACKED; // default op size (0=16 bit seg, 1=32 bit seg) uint_t G : 1 PACKED; // Granularity, (0=bytes, 1=4k) } fields; } attrib; uint_t limit PACKED; ullong_t base PACKED; }; typedef struct VMCB_State_Save_Area { struct vmcb_selector es PACKED; // only lower 32 bits of base are implemented struct vmcb_selector cs PACKED; // only lower 32 bits of base are implemented struct vmcb_selector ss PACKED; // only lower 32 bits of base are implemented struct vmcb_selector ds PACKED; // only lower 32 bits of base are implemented struct vmcb_selector fs PACKED; struct vmcb_selector gs PACKED; struct vmcb_selector gdtr PACKED; // selector+attrib are reserved, only lower 16 bits of limit are implemented struct vmcb_selector ldtr PACKED; struct vmcb_selector idtr PACKED; // selector+attrib are reserved, only lower 16 bits of limit are implemented struct vmcb_selector tr PACKED; uchar_t rsvd1[43] PACKED; //offset 0x0cb uchar_t cpl PACKED; // if the guest is real-mode then the CPL is forced to 0 // if the guest is virtual-mode then the CPL is forced to 3 uint_t rsvd2 PACKED; // offset 0x0d0 ullong_t efer PACKED; uchar_t rsvd3[112] PACKED; //offset 0x148 ullong_t cr4 PACKED; ullong_t cr3 PACKED; ullong_t cr0 PACKED; ullong_t dr7 PACKED; ullong_t dr6 PACKED; ullong_t rflags PACKED; ullong_t rip PACKED; uchar_t rsvd4[88] PACKED; //offset 0x1d8 ullong_t rsp PACKED; uchar_t rsvd5[24] PACKED; //offset 0x1f8 ullong_t rax PACKED; ullong_t star PACKED; ullong_t lstar PACKED; ullong_t cstar PACKED; ullong_t sfmask PACKED; ullong_t KernelGsBase PACKED; ullong_t sysenter_cs PACKED; ullong_t sysenter_esp PACKED; ullong_t sysenter_eip PACKED; ullong_t cr2 PACKED; uchar_t rsvd6[32] PACKED; //offset 0x268 ullong_t g_pat PACKED; // Guest PAT // -- only used if nested paging is enabled ullong_t dbgctl PACKED; // Guest DBGCTL MSR // -- only used if the LBR registers are virtualized ullong_t br_from PACKED; // Guest LastBranchFromIP MSR // -- only used if the LBR registers are virtualized ullong_t br_to PACKED; // Guest LastBranchToIP MSR // -- only used if the LBR registers are virtualized ullong_t lastexcpfrom PACKED; // Guest LastExceptionFromIP MSR // -- only used if the LBR registers are virtualized ullong_t lastexcpto PACKED; // Guest LastExceptionToIP MSR // -- only used if the LBR registers are virtualized } vmcb_saved_state_t; void PrintDebugVMCB(vmcb_t * vmcb); #endif