Annotation of qemu/pc-bios/bios-pq/0013_fix-non-acpi-timer-interrupt-routing.patch, revision 1.1.1.1

1.1       root        1: Fix non-ACPI Timer Interrupt Routing (Beth Kon)
                      2: 
                      3: Replicate ACPI irq0->inti2 override in mp table for non-acpi case.
                      4: 
                      5: v1 -> v2 adds comment suggested by Ryan.
                      6: 
                      7: Signed-off-by: Beth Kon <[email protected]>
                      8: Signed-off-by: Anthony Liguori <[email protected]>
                      9: 
                     10: diff --git a/bios/rombios32.c b/bios/rombios32.c
                     11: index 7be4216..dc7b5f3 100644
                     12: --- a/bios/rombios32.c
                     13: +++ b/bios/rombios32.c
                     14: @@ -1168,6 +1168,12 @@ static void mptable_init(void)
                     15:  
                     16:      /* irqs */
                     17:      for(i = 0; i < 16; i++) {
                     18: +#ifdef BX_QEMU
                     19: +        /* One entry per ioapic input. Input 2 is covered by 
                     20: +           irq0->inti2 override (i == 0). irq 2 is unused */
                     21: +        if (i == 2)
                     22: +            continue;
                     23: +#endif        
                     24:          putb(&q, 3); /* entry type = I/O interrupt */
                     25:          putb(&q, 0); /* interrupt type = vectored interrupt */
                     26:          putb(&q, 0); /* flags: po=0, el=0 */
                     27: @@ -1175,7 +1181,11 @@ static void mptable_init(void)
                     28:          putb(&q, 0); /* source bus ID = ISA */
                     29:          putb(&q, i); /* source bus IRQ */
                     30:          putb(&q, ioapic_id); /* dest I/O APIC ID */
                     31: +#ifdef BX_QEMU
                     32: +        putb(&q, i == 0 ? 2 : i); /* dest I/O APIC interrupt in */
                     33: +#else
                     34:          putb(&q, i); /* dest I/O APIC interrupt in */
                     35: +#endif        
                     36:      }
                     37:      /* patch length */
                     38:      len = q - mp_config_table;

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