1 #include <geekos/vmm_stubs.h>
2 #include <palacios/vmm.h>
3 #include <geekos/debug.h>
4 #include <geekos/serial.h>
6 #include <geekos/screen.h>
8 #include <devices/generic.h>
9 #include <devices/nvram.h>
10 #include <devices/timer.h>
11 #include <devices/simple_pic.h>
12 #include <devices/8259a.h>
13 #include <devices/8254.h>
14 #include <devices/keyboard.h>
15 #include <devices/serial.h>
17 #include <palacios/vmm_intr.h>
18 #include <palacios/vmm_dev_mgr.h>
19 #include <palacios/vmm_time.h>
21 #define SPEAKER_PORT 0x61
23 static inline void VM_Out_Byte(ushort_t port, uchar_t value)
25 __asm__ __volatile__ (
28 : "a" (value), "Nd" (port)
33 * Read a byte from an I/O port.
35 static inline uchar_t VM_In_Byte(ushort_t port)
39 __asm__ __volatile__ (
51 int IO_Read(ushort_t port, void * dst, uint_t length, void * priv_data) {
57 *(uchar_t*)dst = VM_In_Byte(port);
63 int IO_Write(ushort_t port, void * src, uint_t length, void * priv_data) {
69 VM_Out_Byte(port, *(uchar_t *)src);
75 int IO_Read_to_Serial(ushort_t port, void * dst, uint_t length, void * priv_data) {
76 PrintBoth("Input from Guest on port %d (0x%x) Length=%d\n", port, port, length);
82 char * bochs_debug_buf = NULL;
83 int bochs_debug_offset = 0;
86 int IO_BOCHS_debug(ushort_t port, void * src, uint_t length, void * priv_data) {
87 if (!bochs_debug_buf) {
88 bochs_debug_buf = (char*)Malloc(1024);
91 bochs_debug_buf[bochs_debug_offset++] = *(char*)src;
93 if ((*(char*)src == 0xa) || (bochs_debug_offset == 1023)) {
94 SerialPrint("BOCHS>%s", bochs_debug_buf);
95 memset(bochs_debug_buf, 0, 1024);
96 bochs_debug_offset = 0;
103 int IO_Write_to_Serial(ushort_t port, void * src, uint_t length, void * priv_data) {
104 SerialPrint("Output from Guest on port %d (0x%x) Length=%d\n", port, port, length);
108 SerialPrint(">0x%.2x\n", *(char*)src);
111 SerialPrint(">0x%.4x\n", *(ushort_t*)src);
114 SerialPrint(">0x%.8x\n", *(uint_t*)src);
120 // SerialMemDump(src, length);
133 __asm__ __volatile__ (
139 PrintBoth("Starting To Buzz\n");
141 init=VM_In_Byte(SPEAKER_PORT);
144 VM_Out_Byte(SPEAKER_PORT, init|0x2);
145 for (j=0;j<1000000;j++) {
148 VM_Out_Byte(SPEAKER_PORT, init);
149 for (j=0;j<1000000;j++) {
157 int passthrough_mem_read(addr_t guest_addr, void * dst, uint_t length, void * priv_data) {
158 memcpy(dst, (void*)guest_addr, length);
162 int passthrough_mem_write(addr_t guest_addr, void * src, uint_t length, void * priv_data) {
163 memcpy((void*)guest_addr, src, length);
169 /* We need a configuration mechanism, so we can wrap this completely inside the VMM code,
170 * with no pollution into the HOST OS
173 int RunVMM(struct Boot_Info * bootInfo) {
175 struct vmm_os_hooks os_hooks;
176 struct vmm_ctrl_ops vmm_ops;
177 struct guest_info vm_info;
183 memset(&os_hooks, 0, sizeof(struct vmm_os_hooks));
184 memset(&vmm_ops, 0, sizeof(struct vmm_ctrl_ops));
185 memset(&vm_info, 0, sizeof(struct guest_info));
187 os_hooks.print_debug = &SerialPrint;
188 os_hooks.print_info = &Print;
189 os_hooks.print_trace = &SerialPrint;
190 os_hooks.allocate_pages = &Allocate_VMM_Pages;
191 os_hooks.free_page = &Free_VMM_Page;
192 os_hooks.malloc = &VMM_Malloc;
193 os_hooks.free = &VMM_Free;
194 os_hooks.vaddr_to_paddr = &Identity;
195 os_hooks.paddr_to_vaddr = &Identity;
196 os_hooks.hook_interrupt = &hook_irq_stub;
197 os_hooks.ack_irq = &ack_irq;
198 os_hooks.get_cpu_khz = &get_cpu_khz;
200 Init_VMM(&os_hooks, &vmm_ops);
203 /* MOVE THIS TO AN INIT GUEST ROUTINE */
206 v3_init_time(&(vm_info.time_state));
207 init_shadow_map(&(vm_info.mem_map));
209 if ((vmm_ops).has_nested_paging()) {
210 vm_info.shdw_pg_mode = NESTED_PAGING;
212 init_shadow_page_state(&(vm_info.shdw_pg_state));
213 vm_info.shdw_pg_mode = SHADOW_PAGING;
216 vm_info.cpu_mode = REAL;
217 vm_info.mem_mode = PHYSICAL_MEM;
219 //init_irq_map(&(vm_info.irq_map));
220 init_vmm_io_map(&(vm_info.io_map));
221 init_interrupt_state(&vm_info);
223 dev_mgr_init(&(vm_info.dev_mgr));
228 // add_shared_mem_range(&(vm_info.mem_layout), 0, 0x800000, 0x10000);
229 // add_shared_mem_range(&(vm_info.mem_layout), 0, 0x1000000, 0);
231 rip = (ulong_t)(void*)&BuzzVM;
233 // rip = (addr_t)(void*)&exit_test;
236 rsp = (addr_t)Alloc_Page();
238 vm_info.vm_regs.rsp = (rsp +4092 );// - 0x2000;
242 //add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x1000, 0x100000);
243 // add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x100000, 0x0);
246 shadow_region_t *ent = Malloc(sizeof(shadow_region_t));;
247 init_shadow_region_physical(ent,0,0x100000,GUEST_REGION_PHYSICAL_MEMORY,
248 0x100000, HOST_REGION_PHYSICAL_MEMORY);
249 add_shadow_region(&(vm_info.mem_map),ent);
252 add_shadow_region_passthrough(&vm_info, 0x0, 0x100000, 0x100000);
254 hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write, NULL);
255 hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
259 vm_info.cs.base=0xf000;
260 vm_info.cs.limit=0xffff;
262 //vm_info.rip = 0xfff0;
265 vm_info.vm_regs.rsp = 0x0;
271 PrintBoth("Guest Size: %lu\n", bootInfo->guest_size);
273 struct guest_mem_layout * layout = (struct guest_mem_layout *)0x100000;
275 if (layout->magic != MAGIC_CODE) {
276 PrintBoth("Layout Magic Mismatch (0x%x)\n", layout->magic);
279 PrintBoth("%d layout regions\n", layout->num_regions);
281 region_start = (void *)&(layout->regions[layout->num_regions]);
283 PrintBoth("region start = 0x%x\n", region_start);
285 for (i = 0; i < layout->num_regions; i++) {
286 struct layout_region * reg = &(layout->regions[i]);
287 uint_t num_pages = (reg->length / PAGE_SIZE) + ((reg->length % PAGE_SIZE) ? 1 : 0);
288 void * guest_mem = Allocate_VMM_Pages(num_pages);
290 PrintBoth("Layout Region %d bytes\n", reg->length);
291 memcpy(guest_mem, region_start, reg->length);
293 SerialMemDump((unsigned char *)(guest_mem), 16);
295 add_shadow_region_passthrough(&vm_info, reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), (addr_t)guest_mem);
297 PrintBoth("Adding Shadow Region (0x%x-0x%x) -> 0x%x\n", reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), guest_mem);
299 region_start += reg->length;
303 add_shadow_region_passthrough(&vm_info, 0x0, 0xa0000, (addr_t)Allocate_VMM_Pages(160));
305 add_shadow_region_passthrough(&vm_info, 0xa0000, 0xc0000, 0xa0000);
306 //hook_guest_mem(&vm_info, 0xa0000, 0xc0000, passthrough_mem_read, passthrough_mem_write, NULL);
310 //add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
313 add_shadow_region_passthrough(&vm_info, 0xc7000, 0xc8000, (addr_t)Allocate_VMM_Pages(1));
314 if (add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, (addr_t)Allocate_VMM_Pages(40)) == -1) {
315 PrintBoth("Error adding shadow region\n");
318 add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
319 add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, 0xc8000);
323 //add_shadow_region_passthrough(&vm_info, 0x100000, 0x2000000, (addr_t)Allocate_VMM_Pages(8192));
324 add_shadow_region_passthrough(&vm_info, 0x100000, 0x1000000, (addr_t)Allocate_VMM_Pages(4096));
326 // test - give linux accesss to PCI space - PAD
327 add_shadow_region_passthrough(&vm_info, 0xc0000000,0xffffffff,0xc0000000);
330 print_shadow_map(&(vm_info.mem_map));
332 hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write, NULL);
333 //hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
336 hook_io_port(&(vm_info.io_map), 0x400, &IO_Read, &IO_Write_to_Serial, NULL);
337 hook_io_port(&(vm_info.io_map), 0x401, &IO_Read, &IO_Write_to_Serial, NULL);
338 hook_io_port(&(vm_info.io_map), 0x402, &IO_Read, &IO_BOCHS_debug, NULL);
339 hook_io_port(&(vm_info.io_map), 0x403, &IO_Read, &IO_Write_to_Serial, NULL);
343 struct vm_device * nvram = create_nvram();
344 //struct vm_device * timer = create_timer();
345 struct vm_device * pic = create_pic();
346 struct vm_device * keyboard = create_keyboard();
347 struct vm_device * pit = create_pit();
348 struct vm_device * serial = create_serial();
354 generic_port_range_type range[] = {
356 {0x00, 0x07, GENERIC_PRINT_AND_IGNORE}, // DMA 1 channels 0,1,2,3 (address, counter)
357 {0xc0, 0xc7, GENERIC_PRINT_AND_
358 IGNORE}, // DMA 2 channels 4,5,6,7 (address, counter)
359 {0x87, 0x87, GENERIC_PRINT_AND_IGNORE}, // DMA 1 channel 0 page register
360 {0x83, 0x83, GENERIC_PRINT_AND_IGNORE}, // DMA 1 channel 1 page register
361 {0x81, 0x81, GENERIC_PRINT_AND_IGNORE}, // DMA 1 channel 2 page register
362 {0x82, 0x82, GENERIC_PRINT_AND_IGNORE}, // DMA 1 channel 3 page register
363 {0x8f, 0x8f, GENERIC_PRINT_AND_IGNORE}, // DMA 2 channel 4 page register
364 {0x8b, 0x8b, GENERIC_PRINT_AND_IGNORE}, // DMA 2 channel 5 page register
365 {0x89, 0x89, GENERIC_PRINT_AND_IGNORE}, // DMA 2 channel 6 page register
366 {0x8a, 0x8a, GENERIC_PRINT_AND_IGNORE}, // DMA 2 channel 7 page register
367 {0x08, 0x0f, GENERIC_PRINT_AND_IGNORE}, // DMA 1 misc registers (csr, req, smask,mode,clearff,reset,enable,mmask)
368 {0xd0, 0xde, GENERIC_PRINT_AND_IGNORE}, // DMA 2 misc registers
372 {0x3f8, 0x3f8+7, GENERIC_PRINT_AND_IGNORE}, // COM 1
373 {0x2f8, 0x2f8+7, GENERIC_PRINT_AND_IGNORE}, // COM 2
374 {0x3e8, 0x3e8+7, GENERIC_PRINT_AND_IGNORE}, // COM 2
375 {0x2e8, 0x2e8+7, GENERIC_PRINT_AND_IGNORE}, // COM 2
378 {0x170, 0x178, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 1
379 {0x376, 0x377, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 1
380 {0x1f0, 0x1f8, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 0
381 {0x3f6, 0x3f7, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 0
383 {0x3f0, 0x3f2, GENERIC_PRINT_AND_IGNORE}, // Primary floppy controller (base,statusa/statusb,DOR)
384 {0x3f4, 0x3f5, GENERIC_PRINT_AND_IGNORE}, // Primary floppy controller (mainstat/datarate,data)
385 {0x3f7, 0x3f7, GENERIC_PRINT_AND_IGNORE}, // Primary floppy controller (DIR)
386 {0x370, 0x372, GENERIC_PRINT_AND_IGNORE}, // Secondary floppy controller (base,statusa/statusb,DOR)
387 {0x374, 0x375, GENERIC_PRINT_AND_IGNORE}, // Secondary floppy controller (mainstat/datarate,data)
388 {0x377, 0x377, GENERIC_PRINT_AND_IGNORE}, // Secondary floppy controller (DIR)
390 // {0x378, 0x400, GENERIC_PRINT_AND_IGNORE}
394 struct vm_device * generic = create_generic(range,6, // THIS NUMBER IS CRITICAL
399 attach_device(&(vm_info), nvram);
400 //attach_device(&(vm_info), timer);
401 attach_device(&(vm_info), pic);
402 attach_device(&(vm_info), pit);
403 attach_device(&(vm_info), keyboard);
404 attach_device(&(vm_info), serial);
408 // Important that this be attached last!
409 attach_device(&(vm_info), generic);
413 PrintDebugDevMgr(&(vm_info.dev_mgr));
416 // give keyboard interrupts to vm
417 // no longer needed since we have a keyboard device
418 //hook_irq(&vm_info, 1);
421 // give floppy controller to vm
422 hook_irq(&vm_info, 6);
426 hook_irq(&vm_info, 14);
429 hook_irq(&vm_info, 15);
433 vm_info.rip = 0xfff0;
434 vm_info.vm_regs.rsp = 0x0;
438 PrintBoth("Initializing Guest (eip=0x%.8x) (esp=0x%.8x)\n", (uint_t)vm_info.rip,(uint_t)vm_info.vm_regs.rsp);
439 (vmm_ops).init_guest(&vm_info);
440 PrintBoth("Starting Guest\n");
442 (vmm_ops).start_guest(&vm_info);