starry-kernel 0.1.0 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126

# QEMU arguments

QEMU := qemu-system-$(ARCH)

ifeq ($(BUS), mmio)
  vdev-suffix := device
else ifeq ($(BUS), pci)
  vdev-suffix := pci
else
  $(error "BUS" must be one of "mmio" or "pci")
endif

ifeq ($(ARCH), x86_64)
  machine := q35
else ifeq ($(ARCH), riscv64)
  machine := virt
else ifeq ($(ARCH), aarch64)
  ifeq ($(PLAT_NAME), aarch64-raspi4)
    machine := raspi4b
  else
    machine := virt
  endif
else ifeq ($(ARCH), loongarch64)
  machine := virt
endif

qemu_args-x86_64 := \
  -machine $(machine) \
  -kernel $(OUT_ELF)

qemu_args-riscv64 := \
  -machine $(machine) \
  -bios default \
  -kernel $(FINAL_IMG)

qemu_args-aarch64 := \
  -cpu cortex-a72 \
  -machine $(machine) \
  -kernel $(FINAL_IMG)

qemu_args-loongarch64 := \
  -machine $(machine) \
  -kernel $(FINAL_IMG)

qemu_args-y := -m $(MEM) -smp $(SMP) $(qemu_args-$(ARCH))

qemu_args-$(BLK) += \
  -device virtio-blk-$(vdev-suffix),drive=disk0 \
  -drive id=disk0,if=none,format=raw,file=$(DISK_IMG)

qemu_args-$(NET) += \
  -device virtio-net-$(vdev-suffix),netdev=net0

ifeq ($(NET_DEV), user)
  qemu_args-$(NET) += -netdev user,id=net0,hostfwd=tcp::5555-:5555,hostfwd=udp::5555-:5555
else ifeq ($(NET_DEV), tap)
  qemu_args-$(NET) += -netdev tap,id=net0,script=scripts/net/qemu-ifup.sh,downscript=no,vhost=$(VHOST),vhostforce=$(VHOST)
  QEMU := sudo $(QEMU)
else ifeq ($(NET_DEV), bridge)
  qemu_args-$(NET) += -netdev bridge,id=net0,br=virbr0
  QEMU := sudo $(QEMU)
else
  $(error "NET_DEV" must be one of "user", "tap", or "bridge")
endif

ifneq ($(VFIO_PCI),)
  qemu_args-y += --device vfio-pci,host=$(VFIO_PCI)
  QEMU := sudo $(QEMU)
endif

ifeq ($(NET_DUMP), y)
  qemu_args-$(NET) += -object filter-dump,id=dump0,netdev=net0,file=netdump.pcap
endif

qemu_args-$(GRAPHIC) += \
  -device virtio-gpu-$(vdev-suffix) -vga none \
  -serial mon:stdio

ifeq ($(GRAPHIC), n)
  qemu_args-y += -nographic
endif

qemu_args-$(INPUT) += \
  -device virtio-mouse-pci -device virtio-keyboard-pci

qemu_args-$(VSOCK) += \
  -device vhost-vsock-pci,id=virtiosocket0,guest-cid=103

ifeq ($(QEMU_LOG), y)
  qemu_args-y += -D qemu.log -d in_asm,int,mmu,pcall,cpu_reset,guest_errors
endif

qemu_args-$(ICOUNT) += -icount shift=1

qemu_args-y += $(QEMU_ARGS)

qemu_args-debug := $(qemu_args-y) -s -S

ifeq ($(ACCEL),)
  ifneq ($(findstring -microsoft, $(shell uname -r | tr '[:upper:]' '[:lower:]')),)
    ACCEL := n  # Don't enable kvm for WSL/WSL2
  else ifeq ($(ARCH), x86_64)
    ACCEL := $(if $(filter $(shell uname -m),x86_64),y,n)
  else ifeq ($(ARCH), aarch64)
    ACCEL := $(if $(filter $(shell uname -m),arm64 aarch64),y,n)
  else
    ACCEL := n
  endif
endif

# Do not use KVM for debugging
ifeq ($(shell uname), Darwin)
  qemu_args-$(ACCEL) += -cpu host -accel hvf
else ifneq ($(wildcard /dev/kvm),)
  qemu_args-$(ACCEL) += -cpu host -accel kvm
endif

define run_qemu
  @printf "    $(CYAN_C)Running$(END_C) on qemu...\n"
  $(call run_cmd,$(QEMU),$(qemu_args-y))
endef

define run_qemu_debug
  @printf "    $(CYAN_C)Debugging$(END_C) on qemu...\n"
  $(call run_cmd,$(QEMU),$(qemu_args-debug))
endef