Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


BIOS now runs, but dies because it has no devices....
[palacios.releases.git] / palacios / src / palacios / svm_handler.c
1 #include <palacios/svm_handler.h>
2 #include <palacios/vmm.h>
3 #include <palacios/vm_guest_mem.h>
4 #include <palacios/vmm_emulate.h>
5 #include <palacios/svm_ctrl_regs.h>
6 #include <palacios/svm_io.h>
7
8 extern struct vmm_os_hooks * os_hooks;
9
10
11 int handle_svm_exit(struct guest_info * info) {
12   vmcb_ctrl_t * guest_ctrl = 0;
13   vmcb_saved_state_t * guest_state = 0;
14   ulong_t exit_code = 0;
15   
16   guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
17   guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
18   
19
20   // Update the high level state 
21   info->rip = guest_state->rip;
22   info->vm_regs.rsp = guest_state->rsp;
23   info->vm_regs.rax = guest_state->rax;
24   info->vm_regs.rsp = guest_state->rsp;
25
26
27
28   
29
30
31   exit_code = guest_ctrl->exit_code;
32   
33   // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
34
35   
36   if (exit_code == VMEXIT_IOIO) {
37     struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
38     
39     if (io_info->type == 0) {
40       if (io_info->str) {
41         handle_svm_io_outs(info);
42       } else {
43         handle_svm_io_out(info);
44       }
45     } else {
46       if (io_info->str) {
47         handle_svm_io_ins(info);
48       } else {
49         handle_svm_io_in(info);
50       }
51     }
52   } else if (exit_code == VMEXIT_CR0_WRITE) {
53     PrintDebug("CR0 Write\n");
54
55     if (handle_cr0_write(info) == -1) {
56       return -1;
57     }
58     /*
59   } else if (( (exit_code == VMEXIT_CR3_READ)  ||
60                (exit_code == VMEXIT_CR3_WRITE) ||
61                (exit_code == VMEXIT_INVLPG)    ||
62                (exit_code == VMEXIT_INVLPGA)   || 
63                (exit_code == VMEXIT_EXCP14)) && 
64              (info->page_mode == SHADOW_PAGING)) {
65     handle_shadow_paging(info);
66     */
67   } else {
68     addr_t rip_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.selector);
69     char buf[15];
70     addr_t host_addr;
71
72
73     PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); 
74     PrintDebug("RIP: %x\n", guest_state->rip);
75     PrintDebug("RIP Linear: %x\n", rip_addr);
76     
77     PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
78     
79     PrintDebug("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
80     PrintDebug("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
81     
82     PrintDebug("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
83     PrintDebug("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
84
85     
86
87     if (guest_pa_to_host_pa(info, guest_state->rip, &host_addr) == -1) {
88       PrintDebug("Could not translate guest_state->rip to host address\n");
89       return -1;
90     }
91
92     PrintDebug("Host Address of rip = 0x%x\n", host_addr);
93
94     memset(buf, 0, 15);
95     
96     PrintDebug("Reading from 0x%x in guest\n", rip_addr);
97     
98     read_guest_pa_memory(info, rip_addr, 15, buf);
99
100     PrintTraceMemDump(buf, 15);
101
102     while(1);
103
104   }
105
106
107   // Update the low level state
108   guest_state->rax = info->vm_regs.rax;
109   guest_state->rip = info->rip;
110   guest_state->rsp = info->vm_regs.rsp;
111
112   return 0;
113 }
114
115
116
117
118 int handle_shadow_paging(struct guest_info * info) {
119   vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
120   //  vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
121
122   if (guest_ctrl->exit_code == VMEXIT_CR3_READ) {
123
124   }
125
126   return 0;
127 }
128
129
130