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 #include <palacios/vmm_intr.h>
9 extern struct vmm_os_hooks * os_hooks;
12 int handle_svm_exit(struct guest_info * info) {
13 vmcb_ctrl_t * guest_ctrl = 0;
14 vmcb_saved_state_t * guest_state = 0;
15 ulong_t exit_code = 0;
17 guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
18 guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
21 // Update the high level state
22 info->rip = guest_state->rip;
23 info->vm_regs.rsp = guest_state->rsp;
24 info->vm_regs.rax = guest_state->rax;
25 info->vm_regs.rsp = guest_state->rsp;
32 exit_code = guest_ctrl->exit_code;
34 // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
37 if (exit_code == VMEXIT_IOIO) {
38 struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
40 if (io_info->type == 0) {
42 handle_svm_io_outs(info);
44 handle_svm_io_out(info);
48 handle_svm_io_ins(info);
50 handle_svm_io_in(info);
53 } else if (exit_code == VMEXIT_CR0_WRITE) {
54 PrintDebug("CR0 Write\n");
56 if (handle_cr0_write(info) == -1) {
60 } else if (( (exit_code == VMEXIT_CR3_READ) ||
61 (exit_code == VMEXIT_CR3_WRITE) ||
62 (exit_code == VMEXIT_INVLPG) ||
63 (exit_code == VMEXIT_INVLPGA) ||
64 (exit_code == VMEXIT_EXCP14)) &&
65 (info->page_mode == SHADOW_PAGING)) {
66 handle_shadow_paging(info);
69 addr_t rip_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.selector);
74 PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data);
75 PrintDebug("RIP: %x\n", guest_state->rip);
76 PrintDebug("RIP Linear: %x\n", rip_addr);
78 PrintDebug("SVM Returned: Exit Code: %x\n",exit_code);
80 PrintDebug("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
81 PrintDebug("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
83 PrintDebug("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
84 PrintDebug("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
88 if (guest_pa_to_host_pa(info, guest_state->rip, &host_addr) == -1) {
89 PrintDebug("Could not translate guest_state->rip to host address\n");
93 PrintDebug("Host Address of rip = 0x%x\n", host_addr);
97 PrintDebug("Reading from 0x%x in guest\n", rip_addr);
99 read_guest_pa_memory(info, rip_addr, 15, buf);
101 PrintTraceMemDump(buf, 15);
108 // Update the low level state
110 if (intr_pending(&(info->intr_state))) {
111 guest_ctrl->EVENTINJ.vector = get_intr_number(&(info->intr_state));
112 guest_ctrl->EVENTINJ.valid = 1;
114 switch (get_intr_type(&(info->intr_state))) {
116 guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXTERNAL_INTR;
119 guest_ctrl->EVENTINJ.type = SVM_INJECTION_NMI;
122 guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION;
125 guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
128 guest_ctrl->EVENTINJ.type = SVM_INJECTION_VIRTUAL_INTR;
133 PrintDebug("Attempted to issue and invalid interrupt\n");
138 // We need to figure out stack parameters....
139 // EVENTINJ.error_code
143 guest_state->rax = info->vm_regs.rax;
144 guest_state->rip = info->rip;
145 guest_state->rsp = info->vm_regs.rsp;
153 int handle_shadow_paging(struct guest_info * info) {
154 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
155 // vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
157 if (guest_ctrl->exit_code == VMEXIT_CR3_READ) {