I works really well for me using QEMU on Windows.
* Build OVMF setting -D SOURCE_DEBUG_ENABLE and -D DEBUG_ON_SERIAL_PORT.
* Configure The UDK Debugger SoftDebugger.ini file to use TCP port 20716
Channel = TCP
Server = localhost
Port = 20716
* Configure QEMU so the monitor and serial port
are redirected to a tcp ports 20717 and 20716.
I use a batch file to launch the UDK debugger and
and terminal emulators immediately before running
QEMU because the tcp server in QEMU will
timeout of a connect does not happen quickly.
start "Monitor" /B "c:\Program Files (x86)\teraterm\ttermpro.exe"
start "Debugger" /B "C:\Program Files (x86)\Intel\Intel(R) UEFI Development
Kit Debugger Tool\eXdi.exe" /LaunchWinDbg
start "Console" /B "c:\Program Files (x86)\teraterm\ttermpro.exe"
start "QEMU" /B "%QEMU_PATH%\qemu-system-i386w.exe" ^
-machine q35,smm=on,accel=tcg -cpu Nehalem ^
-global ICH9-LPC.disable_s3=1 ^
-drive if=pflash,format=raw,unit=1,file=%EDKII_BUILD_OUTPUT%\FV\OVMF_VARS.fd ^
-monitor tcp:localhost:20717,server ^
Since the serial connections are redirected to tcp ports
on the localhost, this actually provide an excellent
UDK Debugger experience.
> -----Original Message-----
> From: Laszlo Ersek [mailto:ler...@redhat.com]
> Sent: Wednesday, August 9, 2017 4:03 AM
> To: wang xiaofeng <winggundu...@163.com>; Kinney, Michael D
> Cc: email@example.com
> Subject: Re: [edk2] Qestion about how to debug OVMF with UDT on
> On 08/09/17 09:34, wang xiaofeng wrote:
> > Hello All,
> > I try to debug OVMF with UDT on QEMU in windows.
> > I build OVMF on windows 7 with VS2013 . And also runs it in
> > I add DEFINE SOURCE_DEBUG_ENABLE = TRUE in ovmf.dsc
> and build a new bios. From makefile it seems this feature is
> enabled for OVMF SecMain
> \PeCoffExtraActionLibDebug\OUTPUT\PeCoffExtraActionLib.lib \
> ntLib\OUTPUT\SecPeiDebugAgentLib.lib \
> > But how can I link it to the local Windows UDT(which I
> have tested works for real hardware bios by serail port )?
> > Another question is why OVMF fdf don;t include
> > Or I have to enable at least 1 or 2 VM for this task?
> > Thanks in advance!
> In the past I've tried to set up the UDK debugger between two
> machines, using a UNIX domain socket to connect their serial
> ports. It
> didn't work, the debugger protocol kept falling apart. I
> suspected that
> the emulated serial ports didn't follow the timings of physical
> ports closely enough.
> So, I never use SOURCE_DEBUG_ENABLE, but I think others on the
> list may
> have gotten it to work? Mike perhaps?
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