diff options
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/mshv.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/uapi/linux/mshv.h b/include/uapi/linux/mshv.h index 374f75e198bc..b645d17cc531 100644 --- a/include/uapi/linux/mshv.h +++ b/include/uapi/linux/mshv.h @@ -26,6 +26,7 @@ enum { MSHV_PT_BIT_LAPIC, MSHV_PT_BIT_X2APIC, MSHV_PT_BIT_GPA_SUPER_PAGES, + MSHV_PT_BIT_CPU_AND_XSAVE_FEATURES, MSHV_PT_BIT_COUNT, }; @@ -41,6 +42,8 @@ enum { * @pt_flags: Bitmask of 1 << MSHV_PT_BIT_* * @pt_isolation: MSHV_PT_ISOLATION_* * + * This is the initial/v1 version for backward compatibility. + * * Returns a file descriptor to act as a handle to a guest partition. * At this point the partition is not yet initialized in the hypervisor. * Some operations must be done with the partition in this state, e.g. setting @@ -52,6 +55,37 @@ struct mshv_create_partition { __u64 pt_isolation; }; +#define MSHV_NUM_CPU_FEATURES_BANKS 2 + +/** + * struct mshv_create_partition_v2 + * + * This is extended version of the above initial MSHV_CREATE_PARTITION + * ioctl and allows for following additional parameters: + * + * @pt_num_cpu_fbanks: Must be set to MSHV_NUM_CPU_FEATURES_BANKS. + * @pt_cpu_fbanks: Disabled processor feature banks array. + * @pt_disabled_xsave: Disabled xsave feature bits. + * + * pt_cpu_fbanks and pt_disabled_xsave are passed through as-is to the create + * partition hypercall. + * + * Returns : same as above original mshv_create_partition + */ +struct mshv_create_partition_v2 { + __u64 pt_flags; + __u64 pt_isolation; + __u16 pt_num_cpu_fbanks; + __u8 pt_rsvd[6]; /* MBZ */ + __u64 pt_cpu_fbanks[MSHV_NUM_CPU_FEATURES_BANKS]; + __u64 pt_rsvd1[2]; /* MBZ */ +#if defined(__x86_64__) + __u64 pt_disabled_xsave; +#else + __u64 pt_rsvd2; /* MBZ */ +#endif +} __packed; + /* /dev/mshv */ #define MSHV_CREATE_PARTITION _IOW(MSHV_IOCTL, 0x00, struct mshv_create_partition) |