return -1;
}
+ struct v3_segment *theseg = &(info->segments.es); // default is ES
+
+ addr_t inst_ptr;
+
+ if (guest_va_to_host_pa(info,get_addr_linear(info,info->rip,&(info->segments.cs)),&inst_ptr)==-1) {
+ PrintDebug("Can't access instruction\n");
+ return -1;
+ }
+
+ while (is_prefix_byte(*((char*)inst_ptr))) {
+ switch (*((char*)inst_ptr)) {
+ case PREFIX_CS_OVERRIDE:
+ theseg = &(info->segments.cs);
+ break;
+ case PREFIX_SS_OVERRIDE:
+ theseg = &(info->segments.ss);
+ break;
+ case PREFIX_DS_OVERRIDE:
+ theseg = &(info->segments.ds);
+ break;
+ case PREFIX_ES_OVERRIDE:
+ theseg = &(info->segments.es);
+ break;
+ case PREFIX_FS_OVERRIDE:
+ theseg = &(info->segments.fs);
+ break;
+ case PREFIX_GS_OVERRIDE:
+ theseg = &(info->segments.gs);
+ break;
+ default:
+ break;
+ }
+ inst_ptr++;
+ }
+
+
PrintDebug("INS on port %d (0x%x)\n", io_info->port, io_info->port);
if (io_info->sz8) {
// This value should be set depending on the host register size...
mask = get_gpr_mask(info);
-
- PrintDebug("INS Aborted... Check implementation\n");
- return -1;
+ PrintDebug("INS io_info invalid address size, mask=0x%x, io_info=0x%x\n",mask,*((uint_t*)(io_info)));
+ // PrintDebug("INS Aborted... Check implementation\n");
+ //return -1;
}
if (io_info->rep) {
while (rep_num > 0) {
addr_t host_addr;
- dst_addr = get_addr_linear(info, info->vm_regs.rdi & mask, &(info->segments.es));
+ dst_addr = get_addr_linear(info, info->vm_regs.rdi & mask, theseg);
+ PrintDebug("Writing 0x%x\n", dst_addr);
+
if (guest_va_to_host_va(info, dst_addr, &host_addr) == -1) {
// either page fault or gpf...
PrintDebug("Could not convert Guest VA to host VA\n");
int handle_svm_io_outs(struct guest_info * info) {
vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA((vmcb_t *)(info->vmm_data));
vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
+
struct svm_io_info * io_info = (struct svm_io_info *)&(ctrl_area->exit_info1);
} else if (io_info->addr64) {
mask = 0xffffffffffffffffLL;
} else {
+ // This value should be set depending on the host register size...
+ mask = get_gpr_mask(info);
+
+ PrintDebug("OUTS io_info invalid address size, mask=0x%, io_info=0x%x\n",mask,*((uint_t*)(io_info)));
+ // PrintDebug("INS Aborted... Check implementation\n");
+ //return -1;
// should never happen
- PrintDebug("Invalid Address length\n");
- return -1;
+ //PrintDebug("Invalid Address length\n");
+ //return -1;
}
if (io_info->rep) {
rep_num = info->vm_regs.rcx & mask;
}
+ struct v3_segment *theseg = &(info->segments.es); // default is ES
+
+ addr_t inst_ptr;
+
+ if (guest_va_to_host_pa(info,get_addr_linear(info,info->rip,&(info->segments.cs)),&inst_ptr)==-1) {
+ PrintDebug("Can't access instruction\n");
+ return -1;
+ }
+
+ while (is_prefix_byte(*((char*)inst_ptr))) {
+ switch (*((char*)inst_ptr)) {
+ case PREFIX_CS_OVERRIDE:
+ theseg = &(info->segments.cs);
+ break;
+ case PREFIX_SS_OVERRIDE:
+ theseg = &(info->segments.ss);
+ break;
+ case PREFIX_DS_OVERRIDE:
+ theseg = &(info->segments.ds);
+ break;
+ case PREFIX_ES_OVERRIDE:
+ theseg = &(info->segments.es);
+ break;
+ case PREFIX_FS_OVERRIDE:
+ theseg = &(info->segments.fs);
+ break;
+ case PREFIX_GS_OVERRIDE:
+ theseg = &(info->segments.gs);
+ break;
+ default:
+ break;
+ }
+ inst_ptr++;
+ }
+
+ PrintDebug("OUTS size=%d for %d steps\n", write_size, rep_num);
while (rep_num > 0) {
addr_t host_addr;
- dst_addr = get_addr_linear(info, (info->vm_regs.rsi & mask), &(info->segments.ds));
+
+
+
+ dst_addr = get_addr_linear(info, (info->vm_regs.rsi & mask), theseg);
if (guest_va_to_host_va(info, dst_addr, &host_addr) == -1) {
// either page fault or gpf...