2 * This file is part of the Palacios Virtual Machine Monitor developed
3 * by the V3VEE Project with funding from the United States National
4 * Science Foundation and the Department of Energy.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
10 * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
11 * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
12 * All rights reserved.
14 * Author: Jack Lange <jarusl@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
20 #include <palacios/vmm_config.h>
21 #include <palacios/vmm.h>
22 #include <palacios/vmm_debug.h>
23 #include <palacios/vmm_msr.h>
24 #include <palacios/vmm_decoder.h>
25 #include <palacios/vmm_profiler.h>
26 #include <palacios/vmm_mem.h>
27 #include <palacios/vmm_hypercall.h>
30 #include <devices/serial.h>
31 #include <devices/keyboard.h>
32 #include <devices/8259a.h>
33 #include <devices/8254.h>
34 #include <devices/nvram.h>
35 #include <devices/generic.h>
36 #include <devices/ramdisk.h>
37 #include <devices/cdrom.h>
38 #include <devices/bochs_debug.h>
39 #include <devices/os_debug.h>
40 #include <devices/apic.h>
41 #include <devices/io_apic.h>
42 #include <devices/para_net.h>
46 #include <palacios/vmm_host_events.h>
54 static int setup_memory_map(struct guest_info * info, struct v3_vm_config * config_ptr);
55 static int setup_devices(struct guest_info * info, struct v3_vm_config * config_ptr);
56 static struct vm_device * configure_generic(struct guest_info * info, struct v3_vm_config * config_ptr);
61 static int passthrough_mem_write(addr_t guest_addr, void * src, uint_t length, void * priv_data) {
64 // memcpy((void*)guest_addr, src, length);
65 PrintDebug("Write of %d bytes to %p\n", length, (void *)guest_addr);
66 PrintDebug("Write Value = %p\n", (void *)*(addr_t *)src);
73 int v3_config_guest(struct guest_info * info, struct v3_vm_config * config_ptr) {
74 extern v3_cpu_arch_t v3_cpu_type;
76 // Initialize the subsystem data strutures
79 v3_init_msr_map(info);
80 v3_init_interrupt_state(info);
81 v3_init_dev_mgr(info);
82 v3_init_host_events(info);
84 v3_init_decoder(info);
86 v3_init_shadow_map(info);
88 v3_init_hypercall_map(info);
91 if (v3_cpu_type == V3_SVM_REV3_CPU) {
92 info->shdw_pg_mode = NESTED_PAGING;
94 v3_init_shadow_page_state(info);
95 info->shdw_pg_mode = SHADOW_PAGING;
98 // Initial CPU operating mode
99 info->cpu_mode = REAL;
100 info->mem_mode = PHYSICAL_MEM;
102 // Amount of ram the Guest will have, rounded to a 4K page boundary
103 info->mem_size = config_ptr->mem_size & ~(addr_t)0xfff;
105 // Configure the memory map for the guest
106 if (setup_memory_map(info, config_ptr) == -1) {
107 PrintError("Setting up guest memory map failed...\n");
111 // Configure the devices for the guest
112 setup_devices(info, config_ptr);
116 if (config_ptr->enable_profiling) {
117 info->enable_profiler = 1;
118 v3_init_profiler(info);
120 info->enable_profiler = 0;
123 //v3_hook_io_port(info, 1234, &IO_Read, NULL, info);
125 // Setup initial cpu register state
127 info->vm_regs.rsp = 0x0;
135 * The amount of guest memory is stored in info->mem_size
136 * We need to make sure the memory map extends to cover it
138 static int setup_memory_map(struct guest_info * info, struct v3_vm_config * config_ptr) {
139 addr_t mem_pages = info->mem_size >> 12;
141 PrintDebug("Setting up memory map (memory size=%dMB)\n", (uint_t)(info->mem_size / (1024 * 1024)));
143 // Fill up to the 640K hole
144 if (mem_pages >= 160) {
145 if (v3_add_shadow_mem(info, 0x0, 0xa0000, (addr_t)V3_AllocPages(160)) == -1) {
146 PrintError("Could not map full conventional memory\n");
150 // Less than 640k of memory
151 if (v3_add_shadow_mem(info, 0x0, (mem_pages * PAGE_SIZE), (addr_t)V3_AllocPages(mem_pages)) == -1) {
152 PrintError("Could not map subset of conventional memory\n");
158 #define VGABIOS_START 0x000c0000
159 #define ROMBIOS_START 0x000f0000
163 if (v3_add_shadow_mem(info, 0xa0000, 0xc0000, 0xa0000) == -1) {
164 PrintError("Could not map VGA framebuffer\n");
168 v3_hook_write_mem(info, 0xa0000, 0xc0000, 0xa0000, passthrough_mem_write, NULL);
174 uint_t num_pages = (config_ptr->vgabios_size + PAGE_SIZE - 1) / PAGE_SIZE;
175 void * guest_mem = V3_AllocPages(num_pages);
176 addr_t vgabios_end = VGABIOS_START + (num_pages * PAGE_SIZE);
178 PrintDebug("Layout Region %d bytes\n", config_ptr->vgabios_size);
179 memcpy(V3_VAddr(guest_mem), config_ptr->vgabios, config_ptr->vgabios_size);
181 if (v3_add_shadow_mem(info, VGABIOS_START, vgabios_end, (addr_t)guest_mem) == -1) {
182 PrintError("Could not map VGABIOS\n");
186 PrintDebug("Adding Shadow Region (0x%p-0x%p) -> 0x%p\n",
187 (void *)VGABIOS_START,
192 // Fill in the space between the VGABIOS and the ROMBIOS
193 // We'll just back this to shadow memory for now....
194 if (v3_add_shadow_mem(info, vgabios_end, ROMBIOS_START,
195 (addr_t)V3_AllocPages((ROMBIOS_START - vgabios_end) / PAGE_SIZE)) == -1) {
196 PrintError("Could not map VGABIOS->ROMBIOS gap\n");
203 uint_t num_pages = (config_ptr->rombios_size + PAGE_SIZE - 1) / PAGE_SIZE;
204 void * guest_mem = V3_AllocPages(num_pages);
205 addr_t rombios_end = ROMBIOS_START + (num_pages * PAGE_SIZE);
207 PrintDebug("Layout Region %d bytes\n", config_ptr->rombios_size);
208 memcpy(V3_VAddr(guest_mem), config_ptr->rombios, config_ptr->rombios_size);
210 if (v3_add_shadow_mem(info, ROMBIOS_START, rombios_end, (addr_t)guest_mem) == -1) {
211 PrintError("Could not map ROMBIOS\n");
215 PrintDebug("Adding Shadow Region (0x%p-0x%p) -> 0x%p\n",
216 (void *)ROMBIOS_START,
220 if (rombios_end != 0x100000) {
221 PrintError("ROMBIOS must reach the 1MB barrier....\n");
228 #define SEASTAR_START 0xffe00000
229 #define SEASTAR_END 0xffffffff
231 // Fill in generic memory below the seastar
232 addr_t top_of_mem = (SEASTAR_START < info->mem_size) ? SEASTAR_START : info->mem_size;
233 int num_low_pages = (top_of_mem - 0x100000) / PAGE_SIZE;
235 if (v3_add_shadow_mem(info, 0x100000, top_of_mem, (addr_t)V3_AllocPages(num_low_pages)) == -1) {
236 PrintError("Could not extended memory below 4G\n");
240 // Map the Seastar straight through
241 if (v3_add_shadow_mem(info, SEASTAR_START, SEASTAR_END, SEASTAR_START) == -1) {
242 PrintError("Could not map through the seastar\n");
247 // Add memory above the seastar
248 if (info->mem_size > SEASTAR_END) {
249 int num_high_pages = mem_pages - (SEASTAR_END / PAGE_SIZE);
251 if (v3_add_shadow_mem(info, SEASTAR_END, info->mem_size, (addr_t)V3_AllocPages(num_high_pages)) == -1) {
252 PrintError("Could not map extended memory above 4G\n");
258 // Fill in the extended memory map....
260 int num_ext_pages = mem_pages - (0x100000 / PAGE_SIZE);
262 if (num_ext_pages > 0) {
263 if (v3_add_shadow_mem(info, 0x100000, info->mem_size, (addr_t)V3_AllocPages(num_ext_pages)) == -1) {
264 PrintError("Could not allocate extended shadow memory\n");
271 print_shadow_map(info);
278 static int setup_devices(struct guest_info * info, struct v3_vm_config * config_ptr) {
279 struct vm_device * ramdisk = NULL;
280 struct vm_device * cdrom = NULL;
281 struct vm_device * nvram = v3_create_nvram();
282 //struct vm_device * timer = v3_create_timer();
283 struct vm_device * pic = v3_create_pic();
284 struct vm_device * keyboard = v3_create_keyboard();
285 struct vm_device * pit = v3_create_pit();
286 struct vm_device * bochs_debug = v3_create_bochs_debug();
287 struct vm_device * os_debug = v3_create_os_debug();
288 struct vm_device * apic = v3_create_apic();
289 struct vm_device * ioapic = v3_create_io_apic(apic);
290 struct vm_device * para_net = v3_create_para_net();
292 //struct vm_device * serial = v3_create_serial();
293 struct vm_device * generic = NULL;
295 int use_ramdisk = config_ptr->use_ramdisk;
296 int use_generic = USE_GENERIC;
300 PrintDebug("Creating Ramdisk\n");
301 ramdisk = v3_create_ramdisk();
302 cdrom = v3_create_cdrom(ramdisk, config_ptr->ramdisk, config_ptr->ramdisk_size);
307 generic = configure_generic(info, config_ptr);
311 v3_attach_device(info, nvram);
312 //v3_attach_device(info, timer);
313 v3_attach_device(info, pic);
314 v3_attach_device(info, pit);
315 v3_attach_device(info, keyboard);
316 // v3_attach_device(info, serial);
317 v3_attach_device(info, bochs_debug);
318 v3_attach_device(info, os_debug);
320 v3_attach_device(info, apic);
321 v3_attach_device(info, ioapic);
323 v3_attach_device(info, para_net);
326 v3_attach_device(info, ramdisk);
327 v3_attach_device(info, cdrom);
331 // Important that this be attached last!
332 v3_attach_device(info, generic);
335 PrintDebugDevMgr(info);
338 // give keyboard interrupts to vm
339 // no longer needed since we have a keyboard device
340 //hook_irq(&vm_info, 1);
343 // give floppy controller to vm
344 v3_hook_passthrough_irq(info, 6);
349 PrintDebug("Hooking IDE IRQs\n");
352 v3_hook_passthrough_irq(info, 14);
355 v3_hook_passthrough_irq(info, 15);
364 static struct vm_device * configure_generic(struct guest_info * info, struct v3_vm_config * config_ptr) {
365 PrintDebug("Creating Generic Device\n");
366 struct vm_device * generic = v3_create_generic();
368 // Make the DMA controller invisible
369 v3_generic_add_port_range(generic, 0x00, 0x07, GENERIC_PRINT_AND_IGNORE); // DMA 1 channels 0,1,2,3 (address, counter)
370 v3_generic_add_port_range(generic, 0xc0, 0xc7, GENERIC_PRINT_AND_IGNORE); // DMA 2 channels 4,5,6,7 (address, counter)
371 v3_generic_add_port_range(generic, 0x87, 0x87, GENERIC_PRINT_AND_IGNORE); // DMA 1 channel 0 page register
372 v3_generic_add_port_range(generic, 0x83, 0x83, GENERIC_PRINT_AND_IGNORE); // DMA 1 channel 1 page register
373 v3_generic_add_port_range(generic, 0x81, 0x81, GENERIC_PRINT_AND_IGNORE); // DMA 1 channel 2 page register
374 v3_generic_add_port_range(generic, 0x82, 0x82, GENERIC_PRINT_AND_IGNORE); // DMA 1 channel 3 page register
375 v3_generic_add_port_range(generic, 0x8f, 0x8f, GENERIC_PRINT_AND_IGNORE); // DMA 2 channel 4 page register
376 v3_generic_add_port_range(generic, 0x8b, 0x8b, GENERIC_PRINT_AND_IGNORE); // DMA 2 channel 5 page register
377 v3_generic_add_port_range(generic, 0x89, 0x89, GENERIC_PRINT_AND_IGNORE); // DMA 2 channel 6 page register
378 v3_generic_add_port_range(generic, 0x8a, 0x8a, GENERIC_PRINT_AND_IGNORE); // DMA 2 channel 7 page register
379 v3_generic_add_port_range(generic, 0x08, 0x0f, GENERIC_PRINT_AND_IGNORE); // DMA 1 misc registers (csr, req, smask,mode,clearff,reset,enable,mmask)
380 v3_generic_add_port_range(generic, 0xd0, 0xde, GENERIC_PRINT_AND_IGNORE); // DMA 2 misc registers
385 // Make the Serial ports invisible
387 v3_generic_add_port_range(generic, 0x3f8, 0x3f8+7, GENERIC_PRINT_AND_IGNORE); // COM 1
388 v3_generic_add_port_range(generic, 0x2f8, 0x2f8+7, GENERIC_PRINT_AND_IGNORE); // COM 2
393 v3_generic_add_port_range(generic, 0x3e8, 0x3e8+7, GENERIC_PRINT_AND_IGNORE); // COM 3
394 v3_generic_add_port_range(generic, 0x2e8, 0x2e8+7, GENERIC_PRINT_AND_IGNORE); // COM 4
399 // Make the PCI bus invisible (at least it's configuration)
401 v3_generic_add_port_range(generic, 0xcf8, 0xcf8, GENERIC_PRINT_AND_IGNORE); // PCI Config Address
402 v3_generic_add_port_range(generic, 0xcfc, 0xcfc, GENERIC_PRINT_AND_IGNORE); // PCI Config Data
408 // Monitor the IDE controllers (very slow)
409 v3_generic_add_port_range(generic, 0x170, 0x178, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 1
410 v3_generic_add_port_range(generic, 0x376, 0x377, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 1
414 v3_generic_add_port_range(generic, 0x1f0, 0x1f8, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 0
415 v3_generic_add_port_range(generic, 0x3f6, 0x3f7, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 0
421 // Make the floppy controllers invisible
423 v3_generic_add_port_range(generic, 0x3f0, 0x3f2, GENERIC_PRINT_AND_IGNORE); // Primary floppy controller (base,statusa/statusb,DOR)
424 v3_generic_add_port_range(generic, 0x3f4, 0x3f5, GENERIC_PRINT_AND_IGNORE); // Primary floppy controller (mainstat/datarate,data)
425 v3_generic_add_port_range(generic, 0x3f7, 0x3f7, GENERIC_PRINT_AND_IGNORE); // Primary floppy controller (DIR)
426 v3_generic_add_port_range(generic, 0x370, 0x372, GENERIC_PRINT_AND_IGNORE); // Secondary floppy controller (base,statusa/statusb,DOR)
427 v3_generic_add_port_range(generic, 0x374, 0x375, GENERIC_PRINT_AND_IGNORE); // Secondary floppy controller (mainstat/datarate,data)
428 v3_generic_add_port_range(generic, 0x377, 0x377, GENERIC_PRINT_AND_IGNORE); // Secondary floppy controller (DIR)
434 // Make the parallel port invisible
436 v3_generic_add_port_range(generic, 0x378, 0x37f, GENERIC_PRINT_AND_IGNORE);
442 // Monitor graphics card operations
444 v3_generic_add_port_range(generic, 0x3b0, 0x3bb, GENERIC_PRINT_AND_PASSTHROUGH);
445 v3_generic_add_port_range(generic, 0x3c0, 0x3df, GENERIC_PRINT_AND_PASSTHROUGH);
451 // Make the ISA PNP features invisible
453 v3_generic_add_port_range(generic, 0x274, 0x277, GENERIC_PRINT_AND_IGNORE);
454 v3_generic_add_port_range(generic, 0x279, 0x279, GENERIC_PRINT_AND_IGNORE);
455 v3_generic_add_port_range(generic, 0xa79, 0xa79, GENERIC_PRINT_AND_IGNORE);
460 // Monitor any network card (realtek ne2000) operations
461 v3_generic_add_port_range(generic, 0xc100, 0xc1ff, GENERIC_PRINT_AND_PASSTHROUGH);
466 // Make any Bus master ide controller invisible
468 v3_generic_add_port_range(generic, 0xc000, 0xc00f, GENERIC_PRINT_AND_IGNORE);
470 // v3_generic_add_port_range(generic, 0x378, 0x400, GENERIC_PRINT_AND_IGNORE);