On Wednesday, October 21, 2015, Peter Maydell <peter.mayd...@linaro.org> wrote:
> On 21 October 2015 at 12:33, Shlomo Pongratz <shlomopongr...@gmail.com > <javascript:;>> wrote: > > I assume I can add the system registers to target-arm/cpu.c but I wonder > if > > someone really needs to simulate more than 8 AArch32 CPU(s) > > The system register implementation belongs in the gic code, not > target-arm/. We already have support for devices that say > "I have some system registers, please add them to this CPU". > > I don't understand. The system registers are defined in ARM Architecture reference Manual. It is true that the real implementation is in arm_gicv3_interrupts.c But the crn, crm, op0, and op1 of the instructions are in CPU domain. > The mechanism is the same for system registers for both 32-bit > and 64-bit, incidentally. > > I agree. > thanks > -- PMM >
