Ard Biesheuvel c6d2972645 OvmfPkg: XenConsoleSerialPortLib: deal with output overflow ... It is the responsibility of the SerialPortLib implementation to deal with flow control if the underlying medium cannot keep up with the inflow of data. So in our SerialPortWrite () function, we should spin as long as we need to in order to deliver all the data instead of giving up and returning a smaller value than the number of bytes we were given. Also, remove the 'if (Sent > 0)' condition on the signalling of the event channel: if the buffer is full and we haven't been able to add any more data, it makes perfect sense to signal the event channel again, even if we have done so before when we did write the data. Also, this patch brings the implementation of XenSerialPortLib in sync with the library class documentation. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com> [lersek@redhat.com: replace DebugLib dependency with open-coded ASSERT()] git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17079 6f19259b-4bc3-4df7-8a09-765794883524		2015-03-27 21:25:16 +00:00
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XenConsoleSerialPortLib.c	OvmfPkg: XenConsoleSerialPortLib: deal with output overflow	2015-03-27 21:25:16 +00:00
XenConsoleSerialPortLib.inf	Ovmf/Xen: add Xen PV console SerialPortLib driver	2015-02-28 20:33:45 +00:00