diff options
| author | Jinank Jain <jinankjain@linux.microsoft.com> | 2025-10-10 14:55:51 -0700 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2025-11-15 06:18:16 +0000 |
| commit | d62313bdf5961b5f815f0b212f029cf146a8a804 (patch) | |
| tree | 47226884bb881facd67b326c39c96a4ced4298c5 /include/hyperv | |
| parent | 19c515c27cee3bbba7e70a4d84f4b7e4d8d1cd7e (diff) | |
mshv: Introduce new hypercall to map stats page for L1VH partitions
Introduce HVCALL_MAP_STATS_PAGE2 which provides a map location (GPFN)
to map the stats to. This hypercall is required for L1VH partitions,
depending on the hypervisor version. This uses the same check as the
state page map location; mshv_use_overlay_gpfn().
Add mshv_map_vp_state_page() helpers to use this new hypercall or the
old one depending on availability.
For unmapping, the original HVCALL_UNMAP_STATS_PAGE works for both
cases.
Signed-off-by: Jinank Jain <jinankjain@linux.microsoft.com>
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Easwar Hariharan <easwar.hariharan@linux.microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include/hyperv')
| -rw-r--r-- | include/hyperv/hvgdk_mini.h | 1 | ||||
| -rw-r--r-- | include/hyperv/hvhdk_mini.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h index af85b1c36b6e..f6e31d1c3267 100644 --- a/include/hyperv/hvgdk_mini.h +++ b/include/hyperv/hvgdk_mini.h @@ -494,6 +494,7 @@ union hv_vp_assist_msr_contents { /* HV_REGISTER_VP_ASSIST_PAGE */ #define HVCALL_GET_PARTITION_PROPERTY_EX 0x0101 #define HVCALL_MMIO_READ 0x0106 #define HVCALL_MMIO_WRITE 0x0107 +#define HVCALL_MAP_STATS_PAGE2 0x0131 /* HV_HYPERCALL_INPUT */ #define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) diff --git a/include/hyperv/hvhdk_mini.h b/include/hyperv/hvhdk_mini.h index bf2ce27dfcc5..064bf735cab6 100644 --- a/include/hyperv/hvhdk_mini.h +++ b/include/hyperv/hvhdk_mini.h @@ -177,6 +177,13 @@ struct hv_input_map_stats_page { union hv_stats_object_identity identity; } __packed; +struct hv_input_map_stats_page2 { + u32 type; /* enum hv_stats_object_type */ + u32 padding; + union hv_stats_object_identity identity; + u64 map_location; +} __packed; + struct hv_output_map_stats_page { u64 map_location; } __packed; |