diff options
Diffstat (limited to 'sys/amd64/vmm/vmm_lapic.c')
| -rw-r--r-- | sys/amd64/vmm/vmm_lapic.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/amd64/vmm/vmm_lapic.c b/sys/amd64/vmm/vmm_lapic.c index fd511733492e..0cae01f172ec 100644 --- a/sys/amd64/vmm/vmm_lapic.c +++ b/sys/amd64/vmm/vmm_lapic.c @@ -115,6 +115,11 @@ lapic_intr_msi(struct vm *vm, uint64_t addr, uint64_t msg) * physical otherwise. */ dest = (addr >> 12) & 0xff; + /* + * Extended Destination ID support uses bits 5-11 of the address: + * http://david.woodhou.se/ExtDestId.pdf + */ + dest |= ((addr >> 5) & 0x7f) << 8; phys = ((addr & (MSI_X86_ADDR_RH | MSI_X86_ADDR_LOG)) != (MSI_X86_ADDR_RH | MSI_X86_ADDR_LOG)); delmode = msg & APIC_DELMODE_MASK; |