#include <palacios/vmm.h>
#include <palacios/vmm_util.h>
#include <palacios/vmm_emulator.h>
+#include <palacios/vm_guest.h>
#include <palacios/vmm_shadow_paging.h>
#include <palacios/vmm_direct_paging.h>
-
#define MEM_OFFSET_HCALL 0x1000
static inline
-struct v3_shadow_region * insert_shadow_region(struct guest_info * info,
+struct v3_shadow_region * insert_shadow_region(struct v3_vm_info * vm,
struct v3_shadow_region * region);
static int mem_offset_hypercall(struct guest_info * info, uint_t hcall_id, void * private_data) {
- info->vm_regs.rbx = info->mem_map.base_region.host_addr;
+ PrintDebug("V3Vee: Memory offset hypercall (offset=%p)\n",
+ (void *)(info->vm_info->mem_map.base_region.host_addr));
+
+ info->vm_regs.rbx = info->vm_info->mem_map.base_region.host_addr;
return 0;
}
-int v3_init_shadow_map(struct guest_info * info) {
- v3_shdw_map_t * map = &(info->mem_map);
- addr_t mem_pages = info->mem_size >> 12;
+int v3_init_mem_map(struct v3_vm_info * vm) {
+ struct v3_mem_map * map = &(vm->mem_map);
+ addr_t mem_pages = vm->mem_size >> 12;
map->shdw_regions.rb_node = NULL;
- map->hook_hva = (addr_t)V3_VAddr(V3_AllocPages(1));
+
+
+ map->hook_hvas = V3_VAddr(V3_AllocPages(vm->num_cores));
+
// There is an underlying region that contains all of the guest memory
// PrintDebug("Mapping %d pages of memory (%u bytes)\n", (int)mem_pages, (uint_t)info->mem_size);
//memset(V3_VAddr((void *)map->base_region.host_addr), 0xffffffff, map->base_region.guest_end);
- v3_register_hypercall(info, MEM_OFFSET_HCALL, mem_offset_hypercall, NULL);
+ v3_register_hypercall(vm, MEM_OFFSET_HCALL, mem_offset_hypercall, NULL);
return 0;
}
-void v3_delete_shadow_map(struct guest_info * info) {
- struct rb_node * node = v3_rb_first(&(info->mem_map.shdw_regions));
+
+static inline addr_t get_hook_hva(struct guest_info * info) {
+ return (addr_t)(info->vm_info->mem_map.hook_hvas + (PAGE_SIZE_4KB * info->cpu_id));
+}
+
+void v3_delete_shadow_map(struct v3_vm_info * vm) {
+ struct rb_node * node = v3_rb_first(&(vm->mem_map.shdw_regions));
struct v3_shadow_region * reg;
struct rb_node * tmp_node = NULL;
tmp_node = node;
node = v3_rb_next(node);
- v3_delete_shadow_region(info, reg);
+ v3_delete_shadow_region(vm, reg);
}
- V3_FreePage((void *)(info->mem_map.base_region.host_addr));
- V3_FreePage(V3_PAddr((void *)(info->mem_map.hook_hva)));
+ V3_FreePage((void *)(vm->mem_map.base_region.host_addr));
+ V3_FreePage(V3_PAddr((void *)(vm->mem_map.hook_hvas)));
}
-int v3_add_shadow_mem( struct guest_info * info,
+int v3_add_shadow_mem( struct v3_vm_info * vm, uint16_t core_id,
addr_t guest_addr_start,
addr_t guest_addr_end,
addr_t host_addr)
entry->write_hook = NULL;
entry->read_hook = NULL;
entry->priv_data = NULL;
+ entry->core_id = core_id;
- if (insert_shadow_region(info, entry)) {
+ if (insert_shadow_region(vm, entry)) {
V3_Free(entry);
return -1;
}
-int v3_hook_write_mem(struct guest_info * info, addr_t guest_addr_start, addr_t guest_addr_end,
- addr_t host_addr,
+int v3_hook_write_mem(struct v3_vm_info * vm, uint16_t core_id,
+ addr_t guest_addr_start, addr_t guest_addr_end, addr_t host_addr,
int (*write)(addr_t guest_addr, void * src, uint_t length, void * priv_data),
void * priv_data) {
entry->write_hook = write;
entry->read_hook = NULL;
entry->priv_data = priv_data;
+ entry->core_id = core_id;
- if (insert_shadow_region(info, entry)) {
+ if (insert_shadow_region(vm, entry)) {
V3_Free(entry);
return -1;
}
return 0;
}
-int v3_hook_full_mem(struct guest_info * info, addr_t guest_addr_start, addr_t guest_addr_end,
+int v3_hook_full_mem(struct v3_vm_info * vm, uint16_t core_id,
+ addr_t guest_addr_start, addr_t guest_addr_end,
int (*read)(addr_t guest_addr, void * dst, uint_t length, void * priv_data),
int (*write)(addr_t guest_addr, void * src, uint_t length, void * priv_data),
void * priv_data) {
entry->write_hook = write;
entry->read_hook = read;
entry->priv_data = priv_data;
-
- if (insert_shadow_region(info, entry)) {
+ entry->core_id = core_id;
+
+ if (insert_shadow_region(vm, entry)) {
V3_Free(entry);
return -1;
}
// This will unhook the memory hook registered at start address
// We do not support unhooking subregions
-int v3_unhook_mem(struct guest_info * info, addr_t guest_addr_start) {
- struct v3_shadow_region * reg = v3_get_shadow_region(info, guest_addr_start);
+int v3_unhook_mem(struct v3_vm_info * vm, uint16_t core_id, addr_t guest_addr_start) {
+ struct v3_shadow_region * reg = v3_get_shadow_region(vm, core_id, guest_addr_start);
if ((reg->host_type != SHDW_REGION_FULL_HOOK) ||
(reg->host_type != SHDW_REGION_WRITE_HOOK)) {
return -1;
}
- v3_delete_shadow_region(info, reg);
+ v3_delete_shadow_region(vm, reg);
return 0;
}
static inline
-struct v3_shadow_region * __insert_shadow_region(struct guest_info * info,
+struct v3_shadow_region * __insert_shadow_region(struct v3_vm_info * vm,
struct v3_shadow_region * region) {
- struct rb_node ** p = &(info->mem_map.shdw_regions.rb_node);
+ struct rb_node ** p = &(vm->mem_map.shdw_regions.rb_node);
struct rb_node * parent = NULL;
struct v3_shadow_region * tmp_region;
} else if (region->guest_start >= tmp_region->guest_end) {
p = &(*p)->rb_right;
} else {
- return tmp_region;
+ if ((region->guest_end != tmp_region->guest_end) ||
+ (region->guest_start != tmp_region->guest_start)) {
+ PrintError("Trying to map a partial overlapped core specific page...\n");
+ return tmp_region; // This is ugly...
+ } else if (region->core_id == tmp_region->core_id) {
+ return tmp_region;
+ } else if (region->core_id < tmp_region->core_id) {
+ p = &(*p)->rb_left;
+ } else {
+ p = &(*p)->rb_right;
+ }
}
}
static inline
-struct v3_shadow_region * insert_shadow_region(struct guest_info * info,
+struct v3_shadow_region * insert_shadow_region(struct v3_vm_info * vm,
struct v3_shadow_region * region) {
struct v3_shadow_region * ret;
+ int i = 0;
- if ((ret = __insert_shadow_region(info, region))) {
+ if ((ret = __insert_shadow_region(vm, region))) {
return ret;
}
- v3_rb_insert_color(&(region->tree_node), &(info->mem_map.shdw_regions));
+ v3_rb_insert_color(&(region->tree_node), &(vm->mem_map.shdw_regions));
- // flush virtual page tables
- // 3 cases shadow, shadow passthrough, and nested
- if (info->shdw_pg_mode == SHADOW_PAGING) {
- v3_mem_mode_t mem_mode = v3_get_vm_mem_mode(info);
+ for (i = 0; i < vm->num_cores; i++) {
+ struct guest_info * info = &(vm->cores[i]);
- if (mem_mode == PHYSICAL_MEM) {
- addr_t cur_addr;
+ // flush virtual page tables
+ // 3 cases shadow, shadow passthrough, and nested
+ if (info->shdw_pg_mode == SHADOW_PAGING) {
+ v3_mem_mode_t mem_mode = v3_get_vm_mem_mode(info);
+
+ if (mem_mode == PHYSICAL_MEM) {
+ addr_t cur_addr;
+
+ for (cur_addr = region->guest_start;
+ cur_addr < region->guest_end;
+ cur_addr += PAGE_SIZE_4KB) {
+ v3_invalidate_passthrough_addr(info, cur_addr);
+ }
+ } else {
+ v3_invalidate_shadow_pts(info);
+ }
+
+ } else if (info->shdw_pg_mode == NESTED_PAGING) {
+ addr_t cur_addr;
+
for (cur_addr = region->guest_start;
cur_addr < region->guest_end;
cur_addr += PAGE_SIZE_4KB) {
- v3_invalidate_passthrough_addr(info, cur_addr);
+
+ v3_invalidate_nested_addr(info, cur_addr);
}
- } else {
- v3_invalidate_shadow_pts(info);
- }
-
- } else if (info->shdw_pg_mode == NESTED_PAGING) {
- addr_t cur_addr;
-
- for (cur_addr = region->guest_start;
- cur_addr < region->guest_end;
- cur_addr += PAGE_SIZE_4KB) {
-
- v3_invalidate_nested_addr(info, cur_addr);
}
}
-int handle_special_page_fault(struct guest_info * info,
- addr_t fault_gva, addr_t fault_gpa,
- pf_error_t access_info)
+int handle_special_page_fault(struct guest_info * info,
+ addr_t fault_gva, addr_t fault_gpa, pf_error_t access_info)
{
- struct v3_shadow_region * reg = v3_get_shadow_region(info, fault_gpa);
+ struct v3_shadow_region * reg = v3_get_shadow_region(info->vm_info, info->cpu_id, fault_gpa);
PrintDebug("Handling Special Page Fault\n");
int v3_handle_mem_wr_hook(struct guest_info * info, addr_t guest_va, addr_t guest_pa,
struct v3_shadow_region * reg, pf_error_t access_info) {
- addr_t dst_addr = (addr_t)V3_VAddr((void *)v3_get_shadow_addr(reg, guest_pa));
+ addr_t dst_addr = (addr_t)V3_VAddr((void *)v3_get_shadow_addr(reg, info->cpu_id, guest_pa));
if (v3_emulate_write_op(info, guest_va, guest_pa, dst_addr,
reg->write_hook, reg->priv_data) == -1) {
int v3_handle_mem_full_hook(struct guest_info * info, addr_t guest_va, addr_t guest_pa,
struct v3_shadow_region * reg, pf_error_t access_info) {
- addr_t op_addr = info->mem_map.hook_hva;
+ addr_t op_addr = get_hook_hva(info);
if (access_info.write == 1) {
if (v3_emulate_write_op(info, guest_va, guest_pa, op_addr,
-struct v3_shadow_region * v3_get_shadow_region(struct guest_info * info, addr_t guest_addr) {
- struct rb_node * n = info->mem_map.shdw_regions.rb_node;
+struct v3_shadow_region * v3_get_shadow_region(struct v3_vm_info * vm, uint16_t core_id, addr_t guest_addr) {
+ struct rb_node * n = vm->mem_map.shdw_regions.rb_node;
struct v3_shadow_region * reg = NULL;
while (n) {
} else if (guest_addr >= reg->guest_end) {
n = n->rb_right;
} else {
+ if ((core_id == reg->core_id) ||
+ (reg->core_id == V3_MEM_CORE_ANY)) {
return reg;
+ } else {
+ n = n->rb_right;
+ }
}
}
// There is not registered region, so we check if its a valid address in the base region
- if (guest_addr > info->mem_map.base_region.guest_end) {
+ if (guest_addr > vm->mem_map.base_region.guest_end) {
PrintError("Guest Address Exceeds Base Memory Size (ga=%p), (limit=%p)\n",
- (void *)guest_addr, (void *)info->mem_map.base_region.guest_end);
- v3_print_mem_map(info);
+ (void *)guest_addr, (void *)vm->mem_map.base_region.guest_end);
+ v3_print_mem_map(vm);
return NULL;
}
- return &(info->mem_map.base_region);
+ return &(vm->mem_map.base_region);
}
-void v3_delete_shadow_region(struct guest_info * info, struct v3_shadow_region * reg) {
+void v3_delete_shadow_region(struct v3_vm_info * vm, struct v3_shadow_region * reg) {
+ int i = 0;
+
if (reg == NULL) {
return;
}
- // flush virtual page tables
- // 3 cases shadow, shadow passthrough, and nested
- if (info->shdw_pg_mode == SHADOW_PAGING) {
- v3_mem_mode_t mem_mode = v3_get_vm_mem_mode(info);
+ for (i = 0; i < vm->num_cores; i++) {
+ struct guest_info * info = &(vm->cores[i]);
+
+ // flush virtual page tables
+ // 3 cases shadow, shadow passthrough, and nested
+
+ if (info->shdw_pg_mode == SHADOW_PAGING) {
+ v3_mem_mode_t mem_mode = v3_get_vm_mem_mode(info);
- if (mem_mode == PHYSICAL_MEM) {
- addr_t cur_addr;
+ if (mem_mode == PHYSICAL_MEM) {
+ addr_t cur_addr;
+ for (cur_addr = reg->guest_start;
+ cur_addr < reg->guest_end;
+ cur_addr += PAGE_SIZE_4KB) {
+ v3_invalidate_passthrough_addr(info, cur_addr);
+ }
+ } else {
+ v3_invalidate_shadow_pts(info);
+ }
+
+ } else if (info->shdw_pg_mode == NESTED_PAGING) {
+ addr_t cur_addr;
+
for (cur_addr = reg->guest_start;
cur_addr < reg->guest_end;
cur_addr += PAGE_SIZE_4KB) {
- v3_invalidate_passthrough_addr(info, cur_addr);
+
+ v3_invalidate_nested_addr(info, cur_addr);
}
- } else {
- v3_invalidate_shadow_pts(info);
- }
-
- } else if (info->shdw_pg_mode == NESTED_PAGING) {
- addr_t cur_addr;
-
- for (cur_addr = reg->guest_start;
- cur_addr < reg->guest_end;
- cur_addr += PAGE_SIZE_4KB) {
-
- v3_invalidate_nested_addr(info, cur_addr);
}
}
-
- v3_rb_erase(&(reg->tree_node), &(info->mem_map.shdw_regions));
+ v3_rb_erase(&(reg->tree_node), &(vm->mem_map.shdw_regions));
V3_Free(reg);
-addr_t v3_get_shadow_addr(struct v3_shadow_region * reg, addr_t guest_addr) {
+addr_t v3_get_shadow_addr(struct v3_shadow_region * reg, uint16_t core_id, addr_t guest_addr) {
if ( (reg) &&
(reg->host_type != SHDW_REGION_FULL_HOOK)) {
return (guest_addr - reg->guest_start) + reg->host_addr;
-void v3_print_mem_map(struct guest_info * info) {
- struct rb_node * node = v3_rb_first(&(info->mem_map.shdw_regions));
- struct v3_shadow_region * reg = &(info->mem_map.base_region);
+void v3_print_mem_map(struct v3_vm_info * vm) {
+ struct rb_node * node = v3_rb_first(&(vm->mem_map.shdw_regions));
+ struct v3_shadow_region * reg = &(vm->mem_map.base_region);
int i = 0;
V3_Print("Memory Layout:\n");
