On Thu, Jul 17, 2014 at 8:08 AM, Chuck Tuffli <ctuffli@xxxxxxxxx> wrote: > On Wed, Jul 16, 2014 at 7:15 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote: >>> If the BIOS doesn't allocate enough memory mapped IO resources for >>> devices, it sounds like the kernel can't really fix this problem, >>> right? >> >> Yes. You need to fix BIOS at first. >> >> So it will be final products or just development prototype? > > This is a prototype development system I'm using to develop software. > Since a BIOS fix isn't likely to happen, are there existing features I > can use to work around this problem? You need have a scripts with kexec to reload kernel. 1. make sure that card is the slot 9b:15.0 2. boot system with kernel. 3. unload or unbind the drivers for devices under 80:03.0 4. use setpci to clear bridge io, mmio, mmio pref bars with 80:03.0 5. kexec load kernel and start kernel again. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
