diff options
| author | Anatol Belski <anbelski@linux.microsoft.com> | 2026-02-18 14:48:02 +0000 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2026-02-18 23:54:37 +0000 |
| commit | 8927a108a7662eb83eb667bc0c5a0633397122b1 (patch) | |
| tree | 27a9929b2f51114737e34b6bfc5903ce3d46b720 /include | |
| parent | a284dbc96a47891a7a595a1c81b1e2da4d309cf6 (diff) | |
mshv: Add SMT_ENABLED_GUEST partition creation flag
Add support for HV_PARTITION_CREATION_FLAG_SMT_ENABLED_GUEST
to allow userspace VMMs to enable SMT for guest partitions.
Expose this via new MSHV_PT_BIT_SMT_ENABLED_GUEST flag in the UAPI.
Without this flag, the hypervisor schedules guest VPs incorrectly,
causing SMT unusable.
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hyperv/hvhdk.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/mshv.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h index f139c7c5bb2d..245f3db53bf1 100644 --- a/include/hyperv/hvhdk.h +++ b/include/hyperv/hvhdk.h @@ -335,6 +335,7 @@ union hv_partition_isolation_properties { #define HV_PARTITION_ISOLATION_HOST_TYPE_RESERVED 0x2 /* Note: Exo partition is enabled by default */ +#define HV_PARTITION_CREATION_FLAG_SMT_ENABLED_GUEST BIT(0) #define HV_PARTITION_CREATION_FLAG_NESTED_VIRTUALIZATION_CAPABLE BIT(1) #define HV_PARTITION_CREATION_FLAG_GPA_SUPER_PAGES_ENABLED BIT(4) #define HV_PARTITION_CREATION_FLAG_EXO_PARTITION BIT(8) diff --git a/include/uapi/linux/mshv.h b/include/uapi/linux/mshv.h index 7ef5dd67a232..e0645a34b55b 100644 --- a/include/uapi/linux/mshv.h +++ b/include/uapi/linux/mshv.h @@ -28,6 +28,7 @@ enum { MSHV_PT_BIT_GPA_SUPER_PAGES, MSHV_PT_BIT_CPU_AND_XSAVE_FEATURES, MSHV_PT_BIT_NESTED_VIRTUALIZATION, + MSHV_PT_BIT_SMT_ENABLED_GUEST, MSHV_PT_BIT_COUNT, }; |