On Wed, May 25, 2011 at 10:20 PM, Peter Maydell <peter.mayd...@linaro.org> wrote: > On 25 May 2011 19:44, Greg McGary <greg.mcg...@gmail.com> wrote: >> I would like to create a QEMU model of an SoC that has several >> CPU cores having different architectures. I'm guessing this >> can be done. > > It's not supported currently as far as I'm aware. There was > at least one paper at the QEMU Forum earlier this year describing > an approach to multi-CPU environments (embedding QEMU into a > SystemC world) that basically saved and restored all QEMU's > global variables every time it switched cores... > > It would be good if it was supported in QEMU proper, but I > suspect you may be in for some large-scale restructuring work.
One of the long standing goals for QEMU has been to be able to use a single executable to emulate multiple architectures. I think for example the lines like #define cpu_init cpu_sparc_init #define cpu_exec cpu_sparc_exec etc. stand for this purpose, so there has been some consideration for this.