-#include <palacios/vmm_mem.h>
+ #include <palacios/vmm_mem.h>
#include <palacios/vmm.h>
#include <palacios/vmcb.h>
#include <palacios/vmm_decoder.h>
PrintDebug("Real Mode write to CR0 at linear guest pa 0x%x\n",get_addr_linear(info,info->rip,&(info->segments.cs)));
- PrintV3Segments(&(info->segments));
+ //PrintV3Segments(info);
// The real rip address is actually a combination of the rip + CS base
ret = read_guest_pa_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 15, instr);
index += 2;
- PrintDebug("MovToCR0 instr:\n");
- PrintTraceMemDump(instr, 15);
- PrintDebug("EAX=%x\n", *(uint_t*)&(info->vm_regs.rax));
-
+ /*
+ PrintDebug("MovToCR0 instr:\n");
+ PrintTraceMemDump(instr, 15);
+ PrintDebug("EAX=%x\n", *(uint_t*)&(info->vm_regs.rax));
+ */
addr_type = decode_operands32(&(info->vm_regs), instr + index, &index, &first_operand, &second_operand, REG32);
if (addr_type != REG_OPERAND) {
new_cr0 = (struct cr0_32 *)first_operand;
- PrintDebug("first operand=%x\n", *(uint_t *)first_operand);
+ //PrintDebug("first operand=%x\n", *(uint_t *)first_operand);
if (info->shdw_pg_mode == SHADOW_PAGING) {
struct cr0_32 * shadow_cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
info->mem_mode = PHYSICAL_MEM;
PrintDebug("Entering Real Mode\n");
- PrintV3CtrlRegs(&(info->ctrl_regs));
+ //PrintV3CtrlRegs(info);
// reinstate the identity mapped paged tables
// But keep the shadow tables around to handle TLB issues.... UGH...
//info->shdw_pg_state.shadow_cr3 &= 0x00000fff;
shadow_cr0->et = 1;
real_cr0->et = 1;
- PrintV3CtrlRegs(&(info->ctrl_regs));
+ //PrintV3CtrlRegs(info);
}
} else {
+ if (new_cr0->pg == 1) {
+ info->mem_mode = VIRTUAL_MEM;
+ } else if (new_cr0->pg == 0) {
+ info->cpu_mode = REAL;
+ info->mem_mode = PHYSICAL_MEM;
+ }
+
*real_cr0 = *new_cr0;
}
int ret;
PrintDebug("Real Mode read from CR0 at linear guest pa 0x%x\n",get_addr_linear(info,info->rip,&(info->segments.cs)));
- PrintV3Segments(&(info->segments));
+ //PrintV3Segments(info);
// The real rip address is actually a combination of the rip + CS base
ret = read_guest_pa_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 15, instr);
}
- PrintDebug("Instr (15 bytes) at %x:\n", instr);
- PrintTraceMemDump((char*)instr, 15);
+ /*
+ PrintDebug("Instr (15 bytes) at %x:\n", instr);
+ PrintTraceMemDump((char*)instr, 15);
+ */
if (ret != 15) {
// I think we should inject a GPF into the guest
if (info->mem_mode == PHYSICAL_MEM) {
virt_cr0->pg = 0; // clear the pg bit because guest doesn't think it's on
}
-
- PrintDebug("real CR0: %x\n", *(uint_t*)real_cr0);
- PrintDebug("returned CR0: %x\n", *(uint_t*)virt_cr0);
-
} else {
*virt_cr0 = *real_cr0;
}
+
+ PrintDebug("real CR0: %x\n", *(uint_t*)real_cr0);
+ PrintDebug("returned CR0: %x\n", *(uint_t*)virt_cr0);
info->rip += index;
int ret;
char instr[15];
- PrintDebug("Real Mode Write to CR3??? What the fuck???\n");
+ PrintDebug("Real Mode Write to CR3.\n");
// We need to read the instruction, which is at CS:IP, but that
// linear address is guest physical without PG and guest virtual with PG
// linear address is guest physical without PG and guest virtual with PG
if (info->mem_mode == PHYSICAL_MEM) {
// The real rip address is actually a combination of the rip + CS base
- PrintDebug("Writing Guest CR3 Write (Physical Address)\n");
+ //PrintDebug("Writing Guest CR3 Write (Physical Address)\n");
ret = read_guest_pa_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 15, instr);
} else {
- PrintDebug("Writing Guest CR3 Write (Virtual Address)\n");
+ //PrintDebug("Writing Guest CR3 Write (Virtual Address)\n");
// The real rip address is actually a combination of the rip + CS base
ret = read_guest_va_memory(info, get_addr_linear(info, info->rip, &(info->segments.cs)), 15, instr);
}
linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
- PrintDebug("RIP Linear: %x\n", linear_addr);
- PrintV3Segments(&(info->segments));
+ //PrintDebug("RIP Linear: %x\n", linear_addr);
+ //PrintV3Segments(info);
ret = read_guest_pa_memory(info, linear_addr, 15, instr);
}
} else {
PrintDebug("Invalid operating Mode (0x%x), control registers follow\n", info->cpu_mode);
- PrintV3CtrlRegs(&(info->ctrl_regs));
+ PrintV3CtrlRegs(info);
return -1;
}