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>
8 extern struct vmm_os_hooks * os_hooks;
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;
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));
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;
27 PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data);
28 PrintDebug("RIP: %x\n", guest_state->rip);
32 exit_code = guest_ctrl->exit_code;
34 // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
35 PrintDebug("SVM Returned: Exit Code: %x\n",exit_code);
37 PrintDebug("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
38 PrintDebug("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
40 PrintDebug("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
41 PrintDebug("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
44 if (exit_code == VMEXIT_IOIO) {
45 struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
47 if (io_info->type == 0) {
49 handle_svm_io_outs(info);
51 handle_svm_io_out(info);
55 handle_svm_io_ins(info);
57 handle_svm_io_in(info);
60 } else if (exit_code == VMEXIT_CR0_WRITE) {
61 PrintDebug("CR0 Write\n");
63 if (handle_cr0_write(info) == -1) {
67 } else if (( (exit_code == VMEXIT_CR3_READ) ||
68 (exit_code == VMEXIT_CR3_WRITE) ||
69 (exit_code == VMEXIT_INVLPG) ||
70 (exit_code == VMEXIT_INVLPGA) ||
71 (exit_code == VMEXIT_EXCP14)) &&
72 (info->page_mode == SHADOW_PAGING)) {
73 handle_shadow_paging(info);
76 addr_t rip_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.selector);
80 if (guest_pa_to_host_pa(info, guest_state->rip, &host_addr) == -1) {
81 PrintDebug("Could not translate guest_state->rip to host address\n");
85 PrintDebug("Host Address of rip = 0x%x\n", host_addr);
89 PrintDebug("Reading from 0x%x in guest\n", rip_addr);
91 read_guest_pa_memory(info, rip_addr, 15, buf);
93 PrintTraceMemDump(buf, 15);
98 // Update the low level state
99 guest_state->rax = info->vm_regs.rax;
100 guest_state->rip = info->rip;
101 guest_state->rsp = info->vm_regs.rsp;
109 int handle_shadow_paging(struct guest_info * info) {
110 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
111 // vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
113 if (guest_ctrl->exit_code == VMEXIT_CR3_READ) {