On Mi, 2015-09-16 at 07:23 +0200, Jan Kiszka wrote: > On 2015-09-15 23:19, Alex Williamson wrote: > > On Mon, 2015-04-13 at 02:32 +0300, Nadav Amit wrote: > >> Due to old Seabios bug, QEMU reenable LINT0 after reset. This bug is long gone > >> and therefore this hack is no longer needed. Since it violates the > >> specifications, it is removed. > >> > >> Signed-off-by: Nadav Amit <namit@xxxxxxxxxxxxxxxxx> > >> --- > >> hw/intc/apic_common.c | 9 --------- > >> 1 file changed, 9 deletions(-) > > > > Please see bug: https://bugs.launchpad.net/qemu/+bug/1488363 > > > > Is this bug perhaps not as long gone as we thought, or is there > > something else going on here? Thanks, > > I would say, someone needs to check if the SeaBIOS line that is supposed > to enable LINT0 is actually executed on one of the broken systems and, > if not, why not. There is only one reason (beside miscompiling seabios with CONFIG_QEMU=n) why seabios would skip acpi initialization, and that is apic not being present according to cpuid: cpuid(1, &eax, &ebx, &ecx, &cpuid_features); if (eax < 1 || !(cpuid_features & CPUID_APIC)) { // No apic - only the main cpu is present. https://www.kraxel.org/cgit/seabios/tree/src/fw/smp.c#n79 cheers, Gerd PS: coreboot tripped over this too, fixed just a few days ago. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
