diff options
Diffstat (limited to 'sys/amd64/vmm/io/vioapic.c')
| -rw-r--r-- | sys/amd64/vmm/io/vioapic.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/amd64/vmm/io/vioapic.c b/sys/amd64/vmm/io/vioapic.c index 8869dc1383e6..7df6193d6dc0 100644 --- a/sys/amd64/vmm/io/vioapic.c +++ b/sys/amd64/vmm/io/vioapic.c @@ -130,6 +130,15 @@ vioapic_send_intr(struct vioapic *vioapic, int pin) vector = low & IOART_INTVEC; dest = high >> APIC_ID_SHIFT; + /* + * Ideally we'd just call lapic_intr_msi() here with the + * constructed MSI instead of interpreting it for ourselves. + * But until/unless we support emulated IOMMUs with interrupt + * remapping, interpretation is simple. We just need to mask + * in the Extended Destination ID bits for the 15-bit + * enlightenment (http://david.woodhou.se/ExtDestId.pdf) + */ + dest |= ((high & APIC_EXT_ID_MASK) >> APIC_EXT_ID_SHIFT) << 8; vlapic_deliver_intr(vioapic->vm, level, dest, phys, delmode, vector); } |