On 05/18/15 08:50, lidonglin wrote: > First thanks. And I ask another question. Which function can I call to > print information to serial port or IO port(default 0x402) when I build > RELEASE OVMF ?
- The only function that currently enables someone to print to ioport 0x402 (PcdDebugIoPort), and continue, is DebugPrint() in "OvmfPkg/Library/PlatformDebugLibIoPort/DebugLib.c". This function is normally called via the DEBUG() macro (which has no effect if you build OVMF for RELEASE). - You can write to the serial port with SerialPortWrite(), from "MdePkg/Include/Library/SerialPortLib.h". (But, honestly, there is no reason to build OVMF for anything but DEBUG, ever.) Thanks Laszlo ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
