On 20/02/2018 11:36, Stefan Hajnoczi wrote: > === Multi-CPU cluster support for GDB server in QEMU === > > There are many examples in modern computing where multiple CPU > clusters are grouped together in a single SoC. This is common in the > ARM world especially. There are numerous examples such as ARM's > big.LITTLE implementations and Xilinx's 4xA53s and 2xR5s on the ZynqMP > SoC. The goal of this task is to add support to the GDB server to > allow users to debug across these clusters. > > This is another step towards single binary QEMU as well. > > Detailed description of the project. > > Xilinx has an out of tree implementation that can be used as a > starting point. Work will need to be done on top of this to prepare it > for upstream submission and to ensure the implementation is more > generic. > > This will mostly involve extending GDB server to tell GDB about > different architectures and then allow the user to swap between them. > > The Xilinx implementation can be seen here: > https://github.com/Xilinx/qemu/blob/master/gdbstub.c > There has been some steps in preparing the work to go upstream, which > can be seen here: > https://github.com/Xilinx/qemu/tree/mainline/alistair/gdb I agree this is interesting. Another related idea is to resume the multi-arch work that Peter Crosthwaite was working on before he left Xilinx. Paolo
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