Hi Jason, On 12/7/18 5:42 AM, Jason A. Donenfeld wrote: > On Tue, Nov 20, 2018 at 11:08 AM Peter Maydell <peter.mayd...@linaro.org> > wrote: >> It's still stuck, because unconditionally adding a second serial >> port to the virt board breaks some commonly used existing guest >> code (UEFI + Linux), and it's not clear to me what the best >> command line UI is for allowing the user to request the second >> serial port. > > Can the UI be the same more or less as for x86? Specify a second > -serial, and then the machine gets one added? If it's in secure mode, > then it's added as serial 3 instead of 2, to remain backwards > compatible.
You can use various -serial arguments. If a board supports 4 serials and you only want to see the 3rd (secure mode as your example) you could use: ./qemu -serial null -serial null -serial stdio serials #1 and #2 and #4 would be redirected to the null backend, thus ignored, and you bind the secure serial to your stdio.
