On 12 May 2016 at 16:01, Shannon Zhao <shannon.z...@linaro.org> wrote: > On 2016年05月12日 22:35, Peter Maydell wrote: >> Can you put the Image file somewhere I can download it, please? > I just upload it to > http://people.linaro.org/~shannon.zhao/ACPI_ARM/Image
OK, I can reproduce with that, and I think I know what this is. If we boot a "-bios" image then we don't apply the QEMU workaround for booting buggy Linux images which puts all the interrupts into Group 1, and it looks like a no-TZ-support UEFI doesn't configure the interrupt groups either. So Linux ends up hanging because the interrupt is group 0 but group 0 is disabled. If you apply this patch to your guest kernel you should find it boots OK I think: https://lkml.org/lkml/2016/5/10/297 (I'm not sure why the images I was running worked OK; I must have been testing with an image that had that bugfix in it, though I could have sworn I wasn't.) I don't really want to apply the QEMU workaround when we're booting firmware images as well as raw kernels, but on the other hand via-UEFI is kind of supposed to be the normal way to boot in future. Perhaps we should drop the QEMU workaround altogether, putting everybody on the same playing field... thanks -- PMM
