#include <palacios/svm_io.h>
#include <palacios/vmm_io.h>
#include <palacios/vmm_ctrl_regs.h>
-#include <palacios/vmm_emulate.h>
+#include <palacios/vmm_decoder.h>
#include <palacios/vm_guest_mem.h>
PrintDebug("INS on port %d (0x%x)\n", io_info->port, io_info->port);
- if (io_info->sz8) {
+ if (io_info->sz8) {
read_size = 1;
} else if (io_info->sz16) {
read_size = 2;
} else if (io_info->sz32) {
read_size = 4;
+ } else {
+ PrintDebug("io_info Invalid Size\n");
+ return -1;
}
-
+
if (io_info->addr16) {
mask = 0xffff;
} else if (io_info->addr32) {
} else if (io_info->addr64) {
mask = 0xffffffffffffffffLL;
} else {
- // should never happen
+ // This value should be set depending on the host register size...
+ mask = get_gpr_mask(info);
+
+
+ PrintDebug("INS Aborted... Check implementation\n");
return -1;
}
if (io_info->rep) {
- rep_num = info->vm_regs.rcx & mask;
+ // rep_num = info->vm_regs.rcx & mask;
+ rep_num = info->vm_regs.rcx;
}
+ PrintDebug("INS size=%d for %d steps\n", read_size, rep_num);
while (rep_num > 0) {
addr_t host_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");
+ return -1;
}
if (hook->read(io_info->port, (char*)host_addr, read_size, hook->priv_data) != read_size) {
mask = 0xffffffffffffffffLL;
} else {
// should never happen
+ PrintDebug("Invalid Address length\n");
return -1;
}