diff options
| author | Roger Pau Monné <roger.pau@citrix.com> | 2022-02-18 08:17:47 +0000 |
|---|---|---|
| committer | Colin Percival <cperciva@FreeBSD.org> | 2026-03-28 05:54:37 +0000 |
| commit | 8c986d1645312487adf21a9104d667ac1e19c25f (patch) | |
| tree | 8bde64e878fd2b69c80e6b26ec6d2d0323549430 | |
| parent | 9ab5aa3d4c7879d5518afc7587a864ba880e7ee9 (diff) | |
| -rw-r--r-- | sys/contrib/xen/arch-x86/cpuid.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/contrib/xen/arch-x86/cpuid.h b/sys/contrib/xen/arch-x86/cpuid.h index ce46305bee99..f2b2b3632c2d 100644 --- a/sys/contrib/xen/arch-x86/cpuid.h +++ b/sys/contrib/xen/arch-x86/cpuid.h @@ -102,6 +102,13 @@ #define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2) #define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */ #define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */ +/* + * With interrupt format set to 0 (non-remappable) bits 55:49 from the + * IO-APIC RTE and bits 11:5 from the MSI address can be used to store + * high bits for the Destination ID. This expands the Destination ID + * field from 8 to 15 bits, allowing to target APIC IDs up 32768. + */ +#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5) /* * Leaf 6 (0x40000x05) |