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https://github.com/RGBCube/serenity
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Kernel: Introduce basic pre-kernel environment
This implements a simple bootloader that is capable of loading ELF64 kernel images. It does this by using QEMU/GRUB to load the kernel image from disk and pass it to our bootloader as a Multiboot module. The bootloader then parses the ELF image and sets it up appropriately. The kernel's entry point is a C++ function with architecture-native code. Co-authored-by: Liav A <liavalb@gmail.com>
This commit is contained in:
Gunnar Beutner
Andreas Kling
parent
357ddd393e
commit
7e94b090fe
30 changed files with 1207 additions and 181 deletions
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@ -10,14 +10,12 @@
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#
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if [ "$SERENITY_ARCH" = "x86_64" ]; then
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gdb_arch=i386:x86-64
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kernel_binary=Kernel64
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else
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gdb_arch=i386:intel
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kernel_binary=Kernel
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fi
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exec $SERENITY_KERNEL_DEBUGGER \
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-ex "file $(dirname "$0")/../Build/${SERENITY_ARCH:-i686}/Kernel/$kernel_binary" \
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-ex "file $(dirname "$0")/../Build/${SERENITY_ARCH:-i686}/Kernel/Kernel" \
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-ex "set arch $gdb_arch" \
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-ex 'target remote localhost:1234' \
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-ex "source $(dirname "$0")/serenity_gdb.py" \
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@ -2,21 +2,25 @@ timeout=1
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menuentry 'SerenityOS (normal)' {
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root=hd0,5
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multiboot /boot/Kernel root=/dev/hda4
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multiboot /boot/Bootloader root=/dev/hda4
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module /boot/Kernel
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}
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menuentry 'SerenityOS (text mode)' {
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root=hd0,5
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multiboot /boot/Kernel boot_mode=no-fbdev root=/dev/hda4
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multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda4
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module /boot/Kernel
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}
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menuentry 'SerenityOS (No ACPI)' {
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root=hd0,5
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multiboot /boot/Kernel root=/dev/hda4 acpi=off
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multiboot /boot/Bootloader root=/dev/hda4 acpi=off
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module /boot/Kernel
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}
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menuentry 'SerenityOS (with serial debug)' {
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root=hd0,5
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multiboot /boot/Kernel serial_debug root=/dev/hda4
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root=hd0,5
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multiboot /boot/Bootloader serial_debug root=/dev/hda4
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module /boot/Kernel
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}
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@ -2,20 +2,24 @@ timeout=1
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menuentry 'SerenityOS (normal)' {
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root=hd0,2
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multiboot /boot/Kernel root=/dev/hda2
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multiboot /boot/Bootloader root=/dev/hda2
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module /boot/Kernel
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}
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menuentry 'SerenityOS (text mode)' {
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root=hd0,2
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multiboot /boot/Kernel boot_mode=no-fbdev root=/dev/hda2
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multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda2
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module /boot/Kernel
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}
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menuentry 'SerenityOS (No ACPI)' {
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root=hd0,2
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multiboot /boot/Kernel root=/dev/hda2 acpi=off
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multiboot /boot/Bootloader root=/dev/hda2 acpi=off
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module /boot/Kernel
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}
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menuentry 'SerenityOS (with serial debug)' {
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root=hd0,2
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multiboot /boot/Kernel serial_debug root=/dev/hda2
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root=hd0,2
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multiboot /boot/Bootloader serial_debug root=/dev/hda2
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module /boot/Kernel
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}
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@ -2,20 +2,24 @@ timeout=1
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menuentry 'SerenityOS (normal)' {
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root=hd0,1
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multiboot /boot/Kernel root=/dev/hda1
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multiboot /boot/Bootloader root=/dev/hda1
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module /boot/Kernel
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}
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menuentry 'SerenityOS (text mode)' {
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root=hd0,1
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multiboot /boot/Kernel boot_mode=no-fbdev root=/dev/hda1
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multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda1
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module /boot/Kernel
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}
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menuentry 'SerenityOS (No ACPI)' {
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root=hd0,1
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multiboot /boot/Kernel root=/dev/hda1 acpi=off
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multiboot /boot/Bootloader root=/dev/hda1 acpi=off
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module /boot/Kernel
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}
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menuentry 'SerenityOS (with serial debug)' {
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root=hd0,1
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multiboot /boot/Kernel serial_debug root=/dev/hda1
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multiboot /boot/Bootloader serial_debug root=/dev/hda1
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module /boot/Kernel
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}
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28
Meta/run.sh
28
Meta/run.sh
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@ -204,7 +204,8 @@ elif [ "$SERENITY_RUN" = "qn" ]; then
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"$SERENITY_QEMU_BIN" \
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$SERENITY_COMMON_QEMU_ARGS \
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-device e1000 \
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-kernel Kernel/Kernel \
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-kernel Kernel/Prekernel/Prekernel \
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-initrd Kernel/Kernel \
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-append "${SERENITY_KERNEL_CMDLINE}"
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elif [ "$SERENITY_RUN" = "qtap" ]; then
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# Meta/run.sh qtap: qemu with tap
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@ -216,7 +217,8 @@ elif [ "$SERENITY_RUN" = "qtap" ]; then
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$SERENITY_PACKET_LOGGING_ARG \
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-netdev tap,ifname=tap0,id=br0 \
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-device e1000,netdev=br0 \
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-kernel Kernel/Kernel \
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-kernel Kernel/Prekernel/Prekernel \
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-initrd Kernel/Kernel \
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-append "${SERENITY_KERNEL_CMDLINE}"
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sudo ip tuntap del dev tap0 mode tap
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elif [ "$SERENITY_RUN" = "qgrub" ]; then
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@ -235,8 +237,22 @@ elif [ "$SERENITY_RUN" = "q35" ]; then
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$SERENITY_VIRT_TECH_ARG \
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-netdev user,id=breh,hostfwd=tcp:127.0.0.1:8888-10.0.2.15:8888,hostfwd=tcp:127.0.0.1:8823-10.0.2.15:23 \
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-device e1000,netdev=breh \
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-kernel Kernel/Kernel \
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-kernel Kernel/Prekernel/Prekernel \
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-initrd Kernel/Kernel \
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-append "${SERENITY_KERNEL_CMDLINE}"
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elif [ "$SERENITY_RUN" = "bootloader_test" ]; then
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# Meta/run.sh q35: qemu (q35 chipset) with SerenityOS
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echo "Starting SerenityOS with QEMU Q35 machine, Commandline: ${SERENITY_KERNEL_CMDLINE}"
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"$SERENITY_QEMU_BIN" \
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$SERENITY_COMMON_QEMU_Q35_ARGS \
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$SERENITY_VIRT_TECH_ARG \
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-netdev user,id=breh,hostfwd=tcp:127.0.0.1:8888-10.0.2.15:8888,hostfwd=tcp:127.0.0.1:8823-10.0.2.15:23 \
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-device e1000,netdev=breh \
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-kernel Kernel/Prekernel/Prekernel \
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-initrd Kernel/Kernel \
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-append "${SERENITY_KERNEL_CMDLINE}" \
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-no-reboot \
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-no-shutdown
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elif [ "$SERENITY_RUN" = "ci" ]; then
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# Meta/run.sh ci: qemu in text mode
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echo "Running QEMU in CI"
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@ -252,7 +268,8 @@ elif [ "$SERENITY_RUN" = "ci" ]; then
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-nographic \
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-display none \
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-debugcon file:debug.log \
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-kernel Kernel/Kernel \
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-kernel Kernel/Prekernel/Prekernel \
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-initrd Kernel/Kernel \
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-append "${SERENITY_KERNEL_CMDLINE}"
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else
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# Meta/run.sh: qemu with user networking
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@ -262,6 +279,7 @@ else
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$SERENITY_PACKET_LOGGING_ARG \
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-netdev user,id=breh,hostfwd=tcp:127.0.0.1:8888-10.0.2.15:8888,hostfwd=tcp:127.0.0.1:8823-10.0.2.15:23,hostfwd=tcp:127.0.0.1:8000-10.0.2.15:8000,hostfwd=tcp:127.0.0.1:2222-10.0.2.15:22 \
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-device e1000,netdev=breh \
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-kernel Kernel/Kernel \
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-kernel Kernel/Prekernel/Prekernel \
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-initrd Kernel/Kernel \
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-append "${SERENITY_KERNEL_CMDLINE}"
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fi
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