Record networking and DMA development progress

Add the current OS source tree, build scripts, system image layout, and development notes covering DMA page allocation, e1000 bring-up, net API dispatch, and DHCP work in progress.
This commit is contained in:
xyou
2026-07-02 16:17:09 +08:00
parent fbc14631e3
commit f1a2a110d7
182 changed files with 16472 additions and 0 deletions
+75
View File
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@echo off
setlocal
set "SCRIPT_DIR=%~dp0"
set "IMG=%SCRIPT_DIR%deshab.img"
set "SATA_IMG=%SCRIPT_DIR%..\.build_tmp\sata_fat32_dsk.img"
if not exist "%IMG%" (
echo [qemu] Image not found: %IMG%
echo [qemu] Run ..\build.bat first.
exit /b 1
)
set "QEMU="
for %%Q in (qemu-system-x86_64.exe qemu-system-x86_64) do (
for /f "delims=" %%P in ('where %%Q 2^>nul') do (
if not defined QEMU set "QEMU=%%P"
)
)
if not defined QEMU if exist "C:\Program Files\qemu\qemu-system-x86_64.exe" set "QEMU=C:\Program Files\qemu\qemu-system-x86_64.exe"
if not defined QEMU if exist "C:\Program Files (x86)\qemu\qemu-system-x86_64.exe" set "QEMU=C:\Program Files (x86)\qemu\qemu-system-x86_64.exe"
if not defined QEMU if exist "C:\msys64\mingw64\bin\qemu-system-x86_64.exe" set "QEMU=C:\msys64\mingw64\bin\qemu-system-x86_64.exe"
if not defined QEMU if exist "C:\msys64\ucrt64\bin\qemu-system-x86_64.exe" set "QEMU=C:\msys64\ucrt64\bin\qemu-system-x86_64.exe"
if not defined QEMU (
echo [qemu] qemu-system-x86_64 was not found.
echo [qemu] Install QEMU or add it to PATH.
exit /b 1
)
set "OVMF="
if exist "C:\Program Files\qemu\share\edk2-x86_64-code.fd" set "OVMF=C:\Program Files\qemu\share\edk2-x86_64-code.fd"
if not defined OVMF if exist "C:\Program Files\qemu\share\OVMF_CODE.fd" set "OVMF=C:\Program Files\qemu\share\OVMF_CODE.fd"
if not defined OVMF if exist "C:\msys64\mingw64\share\edk2\ovmf\OVMF_CODE.fd" set "OVMF=C:\msys64\mingw64\share\edk2\ovmf\OVMF_CODE.fd"
if not defined OVMF if exist "C:\msys64\ucrt64\share\edk2\ovmf\OVMF_CODE.fd" set "OVMF=C:\msys64\ucrt64\share\edk2\ovmf\OVMF_CODE.fd"
if not defined OVMF (
echo [qemu] UEFI firmware was not found.
echo [qemu] Expected edk2-x86_64-code.fd or OVMF_CODE.fd under QEMU install directory.
exit /b 1
)
echo [qemu] Using: %QEMU%
echo [qemu] UEFI: %OVMF%
echo [qemu] Image: %IMG%
if exist "%SATA_IMG%" (
echo [qemu] SATA: %SATA_IMG%
"%QEMU%" ^
-machine q35 ^
-m 512M ^
-cpu max ^
-serial stdio ^
-drive if=pflash,format=raw,readonly=on,file="%OVMF%" ^
-drive format=raw,file="%IMG%",if=virtio ^
-drive id=sata0,format=raw,file="%SATA_IMG%",if=none ^
-device ide-hd,drive=sata0,bus=ide.0 ^
-netdev user,id=net0 ^
-device e1000,netdev=net0,mac=52:54:00:12:34:56 ^
-boot menu=on
) else (
echo [qemu] SATA image not found, booting without block device
"%QEMU%" ^
-machine q35 ^
-m 512M ^
-cpu max ^
-serial stdio ^
-drive if=pflash,format=raw,readonly=on,file="%OVMF%" ^
-drive format=raw,file="%IMG%",if=virtio ^
-netdev user,id=net0 ^
-device e1000,netdev=net0 ^
-boot menu=on
)
endlocal