diff options
| author | Muminul Islam <muislam@microsoft.com> | 2026-02-18 14:47:59 +0000 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2026-02-18 23:53:22 +0000 |
| commit | a284dbc96a47891a7a595a1c81b1e2da4d309cf6 (patch) | |
| tree | 0ed815b1739d920114794d6becaf541c9b4131fe | |
| parent | 30d25a8fc04cf1806c09362616e861d6fd339f98 (diff) | |
mshv: Add nested virtualization creation flag
Introduce HV_PARTITION_CREATION_FLAG_NESTED_VIRTUALIZATION_CAPABLE to
indicate support for nested virtualization during partition creation.
This enables clearer configuration and capability checks for nested
virtualization scenarios.
Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
| -rw-r--r-- | drivers/hv/mshv_root_main.c | 2 | ||||
| -rw-r--r-- | include/hyperv/hvhdk.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/mshv.h | 1 |
3 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hv/mshv_root_main.c b/drivers/hv/mshv_root_main.c index e5d94398528e..e490f8e5a8a5 100644 --- a/drivers/hv/mshv_root_main.c +++ b/drivers/hv/mshv_root_main.c @@ -1947,6 +1947,8 @@ static long mshv_ioctl_process_pt_flags(void __user *user_arg, u64 *pt_flags, *pt_flags |= HV_PARTITION_CREATION_FLAG_X2APIC_CAPABLE; if (args.pt_flags & BIT_ULL(MSHV_PT_BIT_GPA_SUPER_PAGES)) *pt_flags |= HV_PARTITION_CREATION_FLAG_GPA_SUPER_PAGES_ENABLED; + if (args.pt_flags & BIT(MSHV_PT_BIT_NESTED_VIRTUALIZATION)) + *pt_flags |= HV_PARTITION_CREATION_FLAG_NESTED_VIRTUALIZATION_CAPABLE; isol_props->as_uint64 = 0; diff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h index 79d1f16a850a..f139c7c5bb2d 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_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) #define HV_PARTITION_CREATION_FLAG_LAPIC_ENABLED BIT(13) diff --git a/include/uapi/linux/mshv.h b/include/uapi/linux/mshv.h index dee3ece28ce5..7ef5dd67a232 100644 --- a/include/uapi/linux/mshv.h +++ b/include/uapi/linux/mshv.h @@ -27,6 +27,7 @@ enum { MSHV_PT_BIT_X2APIC, MSHV_PT_BIT_GPA_SUPER_PAGES, MSHV_PT_BIT_CPU_AND_XSAVE_FEATURES, + MSHV_PT_BIT_NESTED_VIRTUALIZATION, MSHV_PT_BIT_COUNT, }; |