Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


some fixes
[palacios.git] / palacios / src / palacios / svm.c
index 52a0a5f..653643f 100644 (file)
 #include <palacios/vmm_decoder.h>
 #include <palacios/vmm_string.h>
 #include <palacios/vmm_lowlevel.h>
+#include <palacios/svm_msr.h>
 
+#include <palacios/vmm_rbtree.h>
 
-
-extern uint_t Get_CR3();
-
+#include <palacios/vmm_profiler.h>
 
 
 extern void v3_stgi();
@@ -59,7 +59,7 @@ static vmcb_t * Allocate_VMCB() {
 
 
 
-
+#include <palacios/vmm_ctrl_regs.h>
 
 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
@@ -76,8 +76,32 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   //ctrl_area->instrs.instrs.CR0 = 1;
   ctrl_area->cr_reads.cr0 = 1;
   ctrl_area->cr_writes.cr0 = 1;
+  //ctrl_area->cr_reads.cr4 = 1;
+  ctrl_area->cr_writes.cr4 = 1;
+
+
+  /* Set up the efer to enable 64 bit page tables */
+  /*
+  {
+    struct efer_64 * efer = (struct efer_64 *)&(guest_state->efer);
+    struct cr4_32 * cr4 = (struct cr4_32 *)&(guest_state->cr4);
+    efer->lma = 1;
+    efer->lme = 1;
+
+    cr4->pae = 1;
+  }
+  */
 
   guest_state->efer |= EFER_MSR_svm_enable;
+  vm_info->guest_efer.value = 0x0LL;
+
+  v3_hook_msr(vm_info, EFER_MSR, 
+             &v3_handle_efer_read,
+             &v3_handle_efer_write, 
+             vm_info);
+
+
+
   guest_state->rflags = 0x00000002; // The reserved bit is always 1
   ctrl_area->svm_instrs.VMRUN = 1;
   ctrl_area->svm_instrs.VMMCALL = 1;
@@ -114,6 +138,8 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   
     ctrl_area->exceptions.nmi = 1;
   */
+
+
   // Debug of boot on physical machines - 7/14/08
   ctrl_area->instrs.NMI=1;
   ctrl_area->instrs.SMI=1;
@@ -121,12 +147,11 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   ctrl_area->instrs.PAUSE=1;
   ctrl_area->instrs.shutdown_evts=1;
 
-
-
   vm_info->vm_regs.rdx = 0x00000f00;
 
   guest_state->cr0 = 0x60000010;
 
+
   guest_state->cs.selector = 0xf000;
   guest_state->cs.limit=0xffff;
   guest_state->cs.base = 0x0000000f0000LL;
@@ -164,10 +189,17 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   guest_state->dr6 = 0x00000000ffff0ff0LL;
   guest_state->dr7 = 0x0000000000000400LL;
 
-  if (vm_info->io_map.num_ports > 0) {
-    struct vmm_io_hook * iter;
+  
+  
+
+
+
+  if ( !RB_EMPTY_ROOT(&(vm_info->io_map)) ) {
+    struct v3_io_hook * iter;
+    struct rb_node * io_node = v3_rb_first(&(vm_info->io_map));
     addr_t io_port_bitmap;
-    
+    int i = 0;
+
     io_port_bitmap = (addr_t)V3_VAddr(V3_AllocPages(3));
     memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
     
@@ -175,22 +207,26 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
 
     //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
 
-    FOREACH_IO_HOOK(vm_info->io_map, iter) {
+    do {
+      iter = rb_entry(io_node, struct v3_io_hook, tree_node);
+
       ushort_t port = iter->port;
       uchar_t * bitmap = (uchar_t *)io_port_bitmap;
+      PrintDebug("%d: Hooking Port %d\n", i, port);
 
       bitmap += (port / 8);
       //      PrintDebug("Setting Bit for port 0x%x\n", port);
       *bitmap |= 1 << (port % 8);
-    }
+
+      i++;
+    } while ((io_node = v3_rb_next(io_node)));
 
 
     //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
 
     ctrl_area->instrs.IOIO_PROT = 1;
   }
-
-
+  
 
   PrintDebug("Exiting on interrupts\n");
   ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
@@ -199,13 +235,20 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
 
   if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
     PrintDebug("Creating initial shadow page table\n");
-    vm_info->direct_map_pt = V3_PAddr((addr_t)create_passthrough_pde32_pts(vm_info));
 
-    vm_info->shdw_pg_state.shadow_cr3 |= (vm_info->direct_map_pt & ~0xfff);
+
+
+    /* Testing 64 bit page tables for long paged real mode guests */
+    //    vm_info->direct_map_pt = (addr_t)V3_PAddr(create_passthrough_pts_64(vm_info));
+    vm_info->direct_map_pt = (addr_t)V3_PAddr(create_passthrough_pts_32(vm_info));
+    /* End Test */
+
     vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
     PrintDebug("Created\n");
 
-    guest_state->cr3 = vm_info->shdw_pg_state.shadow_cr3;
+
+    guest_state->cr3 = vm_info->direct_map_pt;
+
 
     //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low));
 
@@ -223,7 +266,6 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
     ctrl_area->TLB_CONTROL = 1;
     
 
-
     guest_state->g_pat = 0x7040600070406ULL;
 
     guest_state->cr0 |= 0x80000000;
@@ -238,7 +280,7 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
     PrintDebug("NP_Enable at 0x%p\n", (void *)&(ctrl_area->NP_ENABLE));
 
     // Set the Nested Page Table pointer
-    vm_info->direct_map_pt = ((addr_t)create_passthrough_pde32_pts(vm_info) & ~0xfff);
+    vm_info->direct_map_pt = ((addr_t)create_passthrough_pts_32(vm_info) & ~0xfff);
     ctrl_area->N_CR3 = vm_info->direct_map_pt;
 
     //   ctrl_area->N_CR3 = Get_CR3();
@@ -248,6 +290,14 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   }
 
 
+  if (vm_info->msr_map.num_hooks > 0) {
+    PrintDebug("Hooking %d msrs\n", vm_info->msr_map.num_hooks);
+    ctrl_area->MSRPM_BASE_PA = v3_init_svm_msr_map(vm_info);
+    ctrl_area->instrs.MSR_PROT = 1;
+
+  }
+
+
 
 }
 
@@ -304,12 +354,15 @@ static int start_svm_guest(struct guest_info *info) {
     ullong_t tmp_tsc;
     uint_t vm_cr_low = 0, vm_cr_high = 0;
 
-
     v3_enable_ints();
     v3_clgi();
 
 
-    //PrintDebug("SVM Entry to rip=%p...\n", (void *)info->rip);
+    /*
+    PrintDebug("SVM Entry to CS=%p  rip=%p...\n", 
+              (void *)(addr_t)info->segments.cs.base, 
+              (void *)(addr_t)info->rip);
+    */
 
     v3_get_msr(0xc0000101, &vm_cr_high, &vm_cr_low);
 
@@ -324,13 +377,6 @@ static int start_svm_guest(struct guest_info *info) {
     //PrintDebug("SVM Returned\n");
 
 
-#if PrintDebug
-    {
-      uint_t x = 0;
-      PrintDebug("RSP=%p\n", (void *)&x);
-    }
-#endif
-
 
     v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
     num_exits++;
@@ -339,12 +385,16 @@ static int start_svm_guest(struct guest_info *info) {
     v3_stgi();
 
 
-    //PrintDebug("SVM Exit number %d\n", num_exits);
+    if ((num_exits % 5000) == 0) {
+      PrintDebug("SVM Exit number %d\n", num_exits);
+      if (info->enable_profiler) 
+       v3_print_profile(info);
+    }
 
 
      
     if (v3_handle_svm_exit(info) != 0) {
-
+      vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
       addr_t host_addr;
       addr_t linear_addr = 0;
 
@@ -352,7 +402,7 @@ static int start_svm_guest(struct guest_info *info) {
 
       PrintDebug("SVM ERROR!!\n"); 
       
-      PrintDebug("RIP: %p\n", (void *)guest_state->rip);
+      PrintDebug("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
 
 
       linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
@@ -361,7 +411,22 @@ static int start_svm_guest(struct guest_info *info) {
       PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
       v3_print_segments(info);
       v3_print_ctrl_regs(info);
+      if (info->shdw_pg_mode == SHADOW_PAGING) {
+       PrintDebug("Shadow Paging Guest Registers:\n");
+       PrintDebug("\tGuest CR0=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr0));
+       PrintDebug("\tGuest CR3=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr3));
+       // efer
+       // CR4
+      }
       v3_print_GPRs(info);
+
+      PrintDebug("SVM Exit Code: %p\n", (void *)(addr_t)guest_ctrl->exit_code); 
+      
+      PrintDebug("exit_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
+      PrintDebug("exit_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
+      
+      PrintDebug("exit_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
+      PrintDebug("exit_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
       
       if (info->mem_mode == PHYSICAL_MEM) {
        guest_pa_to_host_va(info, linear_addr, &host_addr);
@@ -377,6 +442,7 @@ static int start_svm_guest(struct guest_info *info) {
 
       break;
     }
+
   }
   return 0;
 }
@@ -668,7 +734,7 @@ void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
 
   if (vm_info.page_mode == SHADOW_PAGING) {
     PrintDebug("Creating initial shadow page table\n");
-    vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
+    vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pts_32(&vm_info) & ~0xfff);
     PrintDebug("Created\n");
 
     guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;