pc-bios/bios-pq/0003_smp-startup-poll.patch

   1 From: Avi Kivity <avi@qumranet.com>
   2
   3 instead of timing out, wait until all cpus are up
   4
   5 diff --git a/bios/rombios32.c b/bios/rombios32.c
   6 index ef98a41..05ba40d 100644
   7 --- a/bios/rombios32.c
   8 +++ b/bios/rombios32.c
   9 @@ -512,7 +512,12 @@ void smp_probe(void)
  10          sipi_vector = AP_BOOT_ADDR >> 12;
  11          writel(APIC_BASE + APIC_ICR_LOW, 0x000C4600 | sipi_vector);
  12
  13 +#ifndef BX_QEMU
  14          delay_ms(10);
  15 +#else
  16 +        while (cmos_readb(0x5f) + 1 != readw(&smp_cpus))
  17 +            ;
  18 +#endif
  19      }
  20      BX_INFO("Found %d cpu(s)\n", readw(&smp_cpus));
  21  }