diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/hyperv/hvgdk_mini.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h index 735329859f21..abf0bd76e370 100644 --- a/include/hyperv/hvgdk_mini.h +++ b/include/hyperv/hvgdk_mini.h @@ -205,7 +205,14 @@ union hv_reference_tsc_msr { /* The number of vCPUs in one sparse bank */ #define HV_VCPUS_PER_SPARSE_BANK (64) -/* Some of Hyper-V structs do not use hv_vpset where linux uses them */ +/* + * Some of Hyper-V structs do not use hv_vpset where linux uses them. + * + * struct hv_vpset is usually used as part of hypercall input. The portion + * that counts as "fixed size input header" vs. "variable size input header" + * varies per hypercall. See comments at relevant hypercall call sites as to + * how the "valid_bank_mask" field should be accounted. + */ struct hv_vpset { /* HV_VP_SET */ u64 format; u64 valid_bank_mask; |