1 #include "kvm/vesa.h" 2 3 #include "kvm/virtio-pci-dev.h" 4 #include "kvm/framebuffer.h" 5 #include "kvm/kvm-cpu.h" 6 #include "kvm/ioport.h" 7 #include "kvm/util.h" 8 #include "kvm/irq.h" 9 #include "kvm/kvm.h" 10 #include "kvm/pci.h" 11 #include <linux/byteorder.h> 12 #include <sys/mman.h> 13 14 #include <sys/types.h> 15 #include <sys/ioctl.h> 16 #include <inttypes.h> 17 #include <unistd.h> 18 19 static bool vesa_pci_io_in(struct ioport *ioport, struct kvm *kvm, u16 port, void *data, int size) 20 { 21 return true; 22 } 23 24 static bool vesa_pci_io_out(struct ioport *ioport, struct kvm *kvm, u16 port, void *data, int size) 25 { 26 return true; 27 } 28 29 static struct ioport_operations vesa_io_ops = { 30 .io_in = vesa_pci_io_in, 31 .io_out = vesa_pci_io_out, 32 }; 33 34 static struct pci_device_header vesa_pci_device = { 35 .vendor_id = cpu_to_le16(PCI_VENDOR_ID_REDHAT_QUMRANET), 36 .device_id = cpu_to_le16(PCI_DEVICE_ID_VESA), 37 .header_type = PCI_HEADER_TYPE_NORMAL, 38 .revision_id = 0, 39 .class[2] = 0x03, 40 .subsys_vendor_id = cpu_to_le16(PCI_SUBSYSTEM_VENDOR_ID_REDHAT_QUMRANET), 41 .subsys_id = cpu_to_le16(PCI_SUBSYSTEM_ID_VESA), 42 .bar[1] = cpu_to_le32(VESA_MEM_ADDR | PCI_BASE_ADDRESS_SPACE_MEMORY), 43 .bar_size[1] = VESA_MEM_SIZE, 44 }; 45 46 static struct framebuffer vesafb; 47 48 struct framebuffer *vesa__init(struct kvm *kvm) 49 { 50 u16 vesa_base_addr; 51 u8 dev, line, pin; 52 char *mem; 53 54 if (irq__register_device(PCI_DEVICE_ID_VESA, &dev, &pin, &line) < 0) 55 return NULL; 56 57 vesa_pci_device.irq_pin = pin; 58 vesa_pci_device.irq_line = line; 59 vesa_base_addr = ioport__register(IOPORT_EMPTY, &vesa_io_ops, IOPORT_SIZE, NULL); 60 vesa_pci_device.bar[0] = cpu_to_le32(vesa_base_addr | PCI_BASE_ADDRESS_SPACE_IO); 61 pci__register(&vesa_pci_device, dev); 62 63 mem = mmap(NULL, VESA_MEM_SIZE, PROT_RW, MAP_ANON_NORESERVE, -1, 0); 64 if (mem == MAP_FAILED) 65 return NULL; 66 67 kvm__register_mem(kvm, VESA_MEM_ADDR, VESA_MEM_SIZE, mem); 68 69 vesafb = (struct framebuffer) { 70 .width = VESA_WIDTH, 71 .height = VESA_HEIGHT, 72 .depth = VESA_BPP, 73 .mem = mem, 74 .mem_addr = VESA_MEM_ADDR, 75 .mem_size = VESA_MEM_SIZE, 76 }; 77 return fb__register(&vesafb); 78 } 79