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/nvram.h>
9 #include <devices/timer.h>
10 #include <devices/simple_pic.h>
11 #include <devices/8259a.h>
12 #include <devices/keyboard.h>
14 #include <palacios/vmm_intr.h>
15 #include <palacios/vmm_dev_mgr.h>
17 #define SPEAKER_PORT 0x61
22 inline void VM_Out_Byte(ushort_t port, uchar_t value)
24 __asm__ __volatile__ (
27 : "a" (value), "Nd" (port)
32 * Read a byte from an I/O port.
34 inline uchar_t VM_In_Byte(ushort_t port)
38 __asm__ __volatile__ (
49 int IO_Read(ushort_t port, void * dst, uint_t length, void * priv_data) {
55 *(uchar_t*)dst = VM_In_Byte(port);
61 int IO_Write(ushort_t port, void * src, uint_t length, void * priv_data) {
67 VM_Out_Byte(port, *(uchar_t *)src);
73 int IO_Read_to_Serial(ushort_t port, void * dst, uint_t length, void * priv_data) {
74 PrintBoth("Input from Guest on port %d (0x%x) Length=%d\n", port, port, length);
80 char * bochs_debug_buf = NULL;
81 int bochs_debug_offset = 0;
84 int IO_BOCHS_debug(ushort_t port, void * src, uint_t length, void * priv_data) {
85 if (!bochs_debug_buf) {
86 bochs_debug_buf = (char*)Malloc(1024);
89 bochs_debug_buf[bochs_debug_offset++] = *(char*)src;
91 if ((*(char*)src == 0xa) || (bochs_debug_offset == 1023)) {
92 SerialPrint("BOCHS>%s", bochs_debug_buf);
93 memset(bochs_debug_buf, 0, 1024);
94 bochs_debug_offset = 0;
101 int IO_Write_to_Serial(ushort_t port, void * src, uint_t length, void * priv_data) {
102 SerialPrint("Output from Guest on port %d (0x%x) Length=%d\n", port, port, length);
106 SerialPrint(">0x%.2x\n", *(char*)src);
109 SerialPrint(">0x%.4x\n", *(ushort_t*)src);
112 SerialPrint(">0x%.8x\n", *(uint_t*)src);
118 // SerialMemDump(src, length);
131 __asm__ __volatile__ (
137 PrintBoth("Starting To Buzz\n");
139 init=VM_In_Byte(SPEAKER_PORT);
142 VM_Out_Byte(SPEAKER_PORT, init|0x2);
143 for (j=0;j<1000000;j++) {
146 VM_Out_Byte(SPEAKER_PORT, init);
147 for (j=0;j<1000000;j++) {
156 /* We need a configuration mechanism, so we can wrap this completely inside the VMM code,
157 * with no pollution into the HOST OS
160 int RunVMM(struct Boot_Info * bootInfo) {
162 struct vmm_os_hooks os_hooks;
163 struct vmm_ctrl_ops vmm_ops;
164 struct guest_info vm_info;
170 memset(&os_hooks, 0, sizeof(struct vmm_os_hooks));
171 memset(&vmm_ops, 0, sizeof(struct vmm_ctrl_ops));
172 memset(&vm_info, 0, sizeof(struct guest_info));
174 os_hooks.print_debug = &SerialPrint;
175 os_hooks.print_info = &Print;
176 os_hooks.print_trace = &SerialPrint;
177 os_hooks.allocate_pages = &Allocate_VMM_Pages;
178 os_hooks.free_page = &Free_VMM_Page;
179 os_hooks.malloc = &VMM_Malloc;
180 os_hooks.free = &VMM_Free;
181 os_hooks.vaddr_to_paddr = &Identity;
182 os_hooks.paddr_to_vaddr = &Identity;
183 os_hooks.hook_interrupt = &hook_irq_stub;
184 os_hooks.ack_irq = &ack_irq;
187 Init_VMM(&os_hooks, &vmm_ops);
190 /* MOVE THIS TO AN INIT GUEST ROUTINE */
191 init_shadow_map(&(vm_info.mem_map));
192 init_shadow_page_state(&(vm_info.shdw_pg_state));
193 vm_info.page_mode = SHADOW_PAGING;
195 vm_info.cpu_mode = REAL;
197 //init_irq_map(&(vm_info.irq_map));
198 init_vmm_io_map(&(vm_info.io_map));
199 init_interrupt_state(&vm_info);
201 dev_mgr_init(&(vm_info.dev_mgr));
206 // add_shared_mem_range(&(vm_info.mem_layout), 0, 0x800000, 0x10000);
207 // add_shared_mem_range(&(vm_info.mem_layout), 0, 0x1000000, 0);
209 rip = (ulong_t)(void*)&BuzzVM;
211 // rip = (addr_t)(void*)&exit_test;
214 rsp = (addr_t)Alloc_Page();
216 vm_info.vm_regs.rsp = (rsp +4092 );// - 0x2000;
220 //add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x1000, 0x100000);
221 // add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x100000, 0x0);
224 shadow_region_t *ent = Malloc(sizeof(shadow_region_t));;
225 init_shadow_region_physical(ent,0,0x100000,GUEST_REGION_PHYSICAL_MEMORY,
226 0x100000, HOST_REGION_PHYSICAL_MEMORY);
227 add_shadow_region(&(vm_info.mem_map),ent);
230 add_shadow_region_passthrough(&vm_info, 0x0, 0x100000, 0x100000);
232 hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write, NULL);
233 hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
237 vm_info.cs.base=0xf000;
238 vm_info.cs.limit=0xffff;
240 //vm_info.rip = 0xfff0;
243 vm_info.vm_regs.rsp = 0x0;
249 PrintBoth("Guest Size: %lu\n", bootInfo->guest_size);
251 struct guest_mem_layout * layout = (struct guest_mem_layout *)0x100000;
253 if (layout->magic != MAGIC_CODE) {
254 PrintBoth("Layout Magic Mismatch (0x%x)\n", layout->magic);
257 PrintBoth("%d layout regions\n", layout->num_regions);
259 region_start = (void *)&(layout->regions[layout->num_regions]);
261 PrintBoth("region start = 0x%x\n", region_start);
263 for (i = 0; i < layout->num_regions; i++) {
264 struct layout_region * reg = &(layout->regions[i]);
265 uint_t num_pages = (reg->length / PAGE_SIZE) + ((reg->length % PAGE_SIZE) ? 1 : 0);
266 void * guest_mem = Allocate_VMM_Pages(num_pages);
268 PrintBoth("Layout Region %d bytes\n", reg->length);
269 memcpy(guest_mem, region_start, reg->length);
271 SerialMemDump((unsigned char *)(guest_mem), 16);
273 add_shadow_region_passthrough(&vm_info, reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), (addr_t)guest_mem);
275 PrintBoth("Adding Shadow Region (0x%x-0x%x) -> 0x%x\n", reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), guest_mem);
277 region_start += reg->length;
281 add_shadow_region_passthrough(&vm_info, 0x0, 0xa0000, (addr_t)Allocate_VMM_Pages(160));
282 add_shadow_region_passthrough(&vm_info, 0xa0000, 0xc0000, 0xa0000);
287 //add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
290 add_shadow_region_passthrough(&vm_info, 0xc7000, 0xc8000, (addr_t)Allocate_VMM_Pages(1));
291 if (add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, (addr_t)Allocate_VMM_Pages(40)) == -1) {
292 PrintBoth("Error adding shadow region\n");
295 add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
296 add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, 0xc8000);
300 //add_shadow_region_passthrough(&vm_info, 0x100000, 0x2000000, (addr_t)Allocate_VMM_Pages(8192));
301 add_shadow_region_passthrough(&vm_info, 0x100000, 0x1000000, (addr_t)Allocate_VMM_Pages(4096));
304 print_shadow_map(&(vm_info.mem_map));
306 hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write, NULL);
307 //hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
310 hook_io_port(&(vm_info.io_map), 0x400, &IO_Read, &IO_Write_to_Serial, NULL);
311 hook_io_port(&(vm_info.io_map), 0x401, &IO_Read, &IO_Write_to_Serial, NULL);
312 hook_io_port(&(vm_info.io_map), 0x402, &IO_Read, &IO_BOCHS_debug, NULL);
313 hook_io_port(&(vm_info.io_map), 0x403, &IO_Read, &IO_Write_to_Serial, NULL);
316 struct vm_device * nvram = create_nvram();
317 //struct vm_device * timer = create_timer();
318 struct vm_device * pic = create_pic();
319 struct vm_device * keyboard = create_keyboard();
321 attach_device(&(vm_info), nvram);
322 //attach_device(&(vm_info), timer);
323 attach_device(&(vm_info), pic);
324 attach_device(&(vm_info), keyboard);
326 PrintDebugDevMgr(&(vm_info.dev_mgr));
329 // give keyboard interrupts to vm
330 //hook_irq(&vm_info, 1);
332 // give floppy controller to vm
333 hook_irq(&vm_info, 6);
336 hook_irq(&vm_info, 14);
339 hook_irq(&vm_info, 15);
342 vm_info.rip = 0xfff0;
343 vm_info.vm_regs.rsp = 0x0;
346 PrintBoth("Initializing Guest (eip=0x%.8x) (esp=0x%.8x)\n", (uint_t)vm_info.rip,(uint_t)vm_info.vm_regs.rsp);
347 (vmm_ops).init_guest(&vm_info);
348 PrintBoth("Starting Guest\n");
350 (vmm_ops).start_guest(&vm_info);