I realized that I mistakenly stripped qemu-devel from the discussion; forwarding to make the workaround and todo visible.
Claudio ---------- Forwarded message ---------- From: Peter Maydell <peter.mayd...@linaro.org> Date: 20 February 2014 16:18 Subject: Re: AArch64 register SP value always appearing as zero in "info registers" (kvm control) To: Claudio Fontana <hw.clau...@gmail.com> On 20 February 2014 15:13, Claudio Fontana <hw.clau...@gmail.com> wrote: > I got it to "work for me" by replacing AARCH64_CORE_REG(regs.sp) > with AARCH64_CORE_REG(sp_el1), since I am at EL1. > > I read in kvm_arch_put_registers: > > /* TODO: > * SP_EL1 > * ELR_EL1 > * SPSR[] > * FP state > * system registers > */ > > So I think getting the SP at EL1 is not supported yet while running at > EL1 and using SP_ELx. Yeah. I guess we assumed regs.sp would be "current SP"... I'll put it on my todo list to fix. thanks -- PMM
