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>
13 #include <palacios/vmm_intr.h>
14 #include <palacios/vmm_dev_mgr.h>
16 #define SPEAKER_PORT 0x61
21 inline void VM_Out_Byte(ushort_t port, uchar_t value)
23 __asm__ __volatile__ (
26 : "a" (value), "Nd" (port)
31 * Read a byte from an I/O port.
33 inline uchar_t VM_In_Byte(ushort_t port)
37 __asm__ __volatile__ (
48 int IO_Read(ushort_t port, void * dst, uint_t length, void * priv_data) {
54 *(uchar_t*)dst = VM_In_Byte(port);
60 int IO_Write(ushort_t port, void * src, uint_t length, void * priv_data) {
66 VM_Out_Byte(port, *(uchar_t *)src);
72 int IO_Read_to_Serial(ushort_t port, void * dst, uint_t length, void * priv_data) {
73 PrintBoth("Input from Guest on port %d (0x%x) Length=%d\n", port, port, length);
79 char * bochs_debug_buf = NULL;
80 int bochs_debug_offset = 0;
83 int IO_BOCHS_debug(ushort_t port, void * src, uint_t length, void * priv_data) {
84 if (!bochs_debug_buf) {
85 bochs_debug_buf = (char*)Malloc(1024);
88 bochs_debug_buf[bochs_debug_offset++] = *(char*)src;
90 if ((*(char*)src == 0xa) || (bochs_debug_offset == 1023)) {
91 SerialPrint("BOCHS>%s", bochs_debug_buf);
92 memset(bochs_debug_buf, 0, 1024);
93 bochs_debug_offset = 0;
100 int IO_Write_to_Serial(ushort_t port, void * src, uint_t length, void * priv_data) {
101 SerialPrint("Output from Guest on port %d (0x%x) Length=%d\n", port, port, length);
105 SerialPrint(">0x%.2x\n", *(char*)src);
108 SerialPrint(">0x%.4x\n", *(ushort_t*)src);
111 SerialPrint(">0x%.8x\n", *(uint_t*)src);
117 // SerialMemDump(src, length);
130 __asm__ __volatile__ (
136 PrintBoth("Starting To Buzz\n");
138 init=VM_In_Byte(SPEAKER_PORT);
141 VM_Out_Byte(SPEAKER_PORT, init|0x2);
142 for (j=0;j<1000000;j++) {
145 VM_Out_Byte(SPEAKER_PORT, init);
146 for (j=0;j<1000000;j++) {
155 /* We need a configuration mechanism, so we can wrap this completely inside the VMM code,
156 * with no pollution into the HOST OS
159 int RunVMM(struct Boot_Info * bootInfo) {
161 struct vmm_os_hooks os_hooks;
162 struct vmm_ctrl_ops vmm_ops;
163 struct guest_info vm_info;
169 memset(&os_hooks, 0, sizeof(struct vmm_os_hooks));
170 memset(&vmm_ops, 0, sizeof(struct vmm_ctrl_ops));
171 memset(&vm_info, 0, sizeof(struct guest_info));
173 os_hooks.print_debug = &SerialPrint;
174 os_hooks.print_info = &Print;
175 os_hooks.print_trace = &SerialPrint;
176 os_hooks.allocate_pages = &Allocate_VMM_Pages;
177 os_hooks.free_page = &Free_VMM_Page;
178 os_hooks.malloc = &VMM_Malloc;
179 os_hooks.free = &VMM_Free;
180 os_hooks.vaddr_to_paddr = &Identity;
181 os_hooks.paddr_to_vaddr = &Identity;
182 os_hooks.hook_interrupt = &hook_irq_stub;
183 os_hooks.ack_irq = &ack_irq;
186 Init_VMM(&os_hooks, &vmm_ops);
189 /* MOVE THIS TO AN INIT GUEST ROUTINE */
190 init_shadow_map(&(vm_info.mem_map));
191 init_shadow_page_state(&(vm_info.shdw_pg_state));
192 vm_info.page_mode = SHADOW_PAGING;
194 vm_info.cpu_mode = REAL;
196 //init_irq_map(&(vm_info.irq_map));
197 init_vmm_io_map(&(vm_info.io_map));
198 init_interrupt_state(&vm_info);
200 dev_mgr_init(&(vm_info.dev_mgr));
205 // add_shared_mem_range(&(vm_info.mem_layout), 0, 0x800000, 0x10000);
206 // add_shared_mem_range(&(vm_info.mem_layout), 0, 0x1000000, 0);
208 rip = (ulong_t)(void*)&BuzzVM;
210 // rip = (addr_t)(void*)&exit_test;
213 rsp = (addr_t)Alloc_Page();
215 vm_info.vm_regs.rsp = (rsp +4092 );// - 0x2000;
219 //add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x1000, 0x100000);
220 // add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x100000, 0x0);
223 shadow_region_t *ent = Malloc(sizeof(shadow_region_t));;
224 init_shadow_region_physical(ent,0,0x100000,GUEST_REGION_PHYSICAL_MEMORY,
225 0x100000, HOST_REGION_PHYSICAL_MEMORY);
226 add_shadow_region(&(vm_info.mem_map),ent);
229 add_shadow_region_passthrough(&vm_info, 0x0, 0x100000, 0x100000);
231 hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write, NULL);
232 hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
236 vm_info.cs.base=0xf000;
237 vm_info.cs.limit=0xffff;
239 //vm_info.rip = 0xfff0;
242 vm_info.vm_regs.rsp = 0x0;
248 PrintBoth("Guest Size: %lu\n", bootInfo->guest_size);
250 struct guest_mem_layout * layout = (struct guest_mem_layout *)0x100000;
252 if (layout->magic != MAGIC_CODE) {
253 PrintBoth("Layout Magic Mismatch (0x%x)\n", layout->magic);
256 PrintBoth("%d layout regions\n", layout->num_regions);
258 region_start = (void *)&(layout->regions[layout->num_regions]);
260 PrintBoth("region start = 0x%x\n", region_start);
262 for (i = 0; i < layout->num_regions; i++) {
263 struct layout_region * reg = &(layout->regions[i]);
264 uint_t num_pages = (reg->length / PAGE_SIZE) + ((reg->length % PAGE_SIZE) ? 1 : 0);
265 void * guest_mem = Allocate_VMM_Pages(num_pages);
267 PrintBoth("Layout Region %d bytes\n", reg->length);
268 memcpy(guest_mem, region_start, reg->length);
270 SerialMemDump((unsigned char *)(guest_mem), 16);
272 add_shadow_region_passthrough(&vm_info, reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), (addr_t)guest_mem);
274 PrintBoth("Adding Shadow Region (0x%x-0x%x) -> 0x%x\n", reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), guest_mem);
276 region_start += reg->length;
280 add_shadow_region_passthrough(&vm_info, 0x0, 0xa0000, (addr_t)Allocate_VMM_Pages(160));
281 add_shadow_region_passthrough(&vm_info, 0xa0000, 0xc0000, 0xa0000);
286 //add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
289 add_shadow_region_passthrough(&vm_info, 0xc7000, 0xc8000, (addr_t)Allocate_VMM_Pages(1));
290 if (add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, (addr_t)Allocate_VMM_Pages(40)) == -1) {
291 PrintBoth("Error adding shadow region\n");
294 add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
295 add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, 0xc8000);
299 //add_shadow_region_passthrough(&vm_info, 0x100000, 0x2000000, (addr_t)Allocate_VMM_Pages(8192));
300 add_shadow_region_passthrough(&vm_info, 0x100000, 0x1000000, (addr_t)Allocate_VMM_Pages(4096));
303 print_shadow_map(&(vm_info.mem_map));
305 hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write, NULL);
306 hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
309 hook_io_port(&(vm_info.io_map), 0x400, &IO_Read, &IO_Write_to_Serial, NULL);
310 hook_io_port(&(vm_info.io_map), 0x401, &IO_Read, &IO_Write_to_Serial, NULL);
311 hook_io_port(&(vm_info.io_map), 0x402, &IO_Read, &IO_BOCHS_debug, NULL);
312 hook_io_port(&(vm_info.io_map), 0x403, &IO_Read, &IO_Write_to_Serial, NULL);
315 struct vm_device * nvram = create_nvram();
316 //struct vm_device * timer = create_timer();
317 struct vm_device * pic = create_pic();
319 attach_device(&(vm_info), nvram);
320 //attach_device(&(vm_info), timer);
321 attach_device(&(vm_info), pic);
323 PrintDebugDevMgr(&(vm_info.dev_mgr));
326 hook_irq(&vm_info, 6);
327 hook_irq(&vm_info, 14);
328 hook_irq(&vm_info, 15);
331 vm_info.rip = 0xfff0;
332 vm_info.vm_regs.rsp = 0x0;
335 PrintBoth("Initializing Guest (eip=0x%.8x) (esp=0x%.8x)\n", (uint_t)vm_info.rip,(uint_t)vm_info.vm_regs.rsp);
336 (vmm_ops).init_guest(&vm_info);
337 PrintBoth("Starting Guest\n");
339 (vmm_ops).start_guest(&vm_info);