diff options
| author | Stanislav Kinsburskii <skinsburskii@linux.microsoft.com> | 2026-02-05 18:42:21 +0000 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2026-02-19 06:39:16 +0000 |
| commit | cf82dd5ea95815e6c0612b61118d2358ef5c05b0 (patch) | |
| tree | 6c0999afd6daf6fe9044edb7d0c162210a0f6445 /include | |
| parent | ede54383e646821b499873c1caf2dd97551da8eb (diff) | |
mshv: Handle insufficient contiguous memory hypervisor status
The HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY status indicates that the
hypervisor lacks sufficient contiguous memory for its internal allocations.
When this status is encountered, allocate and deposit
HV_MAX_CONTIGUOUS_ALLOCATION_PAGES contiguous pages to the hypervisor.
HV_MAX_CONTIGUOUS_ALLOCATION_PAGES is defined in the hypervisor headers, a
deposit of this size will always satisfy the hypervisor's requirements.
Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Reviewed-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com>
Reviewed-by: Mukesh R <mrathor@linux.microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hyperv/hvgdk_mini.h | 1 | ||||
| -rw-r--r-- | include/hyperv/hvhdk_mini.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/hyperv/hvgdk_mini.h b/include/hyperv/hvgdk_mini.h index d9aa5afb0a27..fa2fb91a6470 100644 --- a/include/hyperv/hvgdk_mini.h +++ b/include/hyperv/hvgdk_mini.h @@ -38,6 +38,7 @@ struct hv_u128 { #define HV_STATUS_INVALID_LP_INDEX 0x41 #define HV_STATUS_INVALID_REGISTER_VALUE 0x50 #define HV_STATUS_OPERATION_FAILED 0x71 +#define HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY 0x75 #define HV_STATUS_TIME_OUT 0x78 #define HV_STATUS_CALL_PENDING 0x79 #define HV_STATUS_VTL_ALREADY_ENABLED 0x86 diff --git a/include/hyperv/hvhdk_mini.h b/include/hyperv/hvhdk_mini.h index c0300910808b..091c03e26046 100644 --- a/include/hyperv/hvhdk_mini.h +++ b/include/hyperv/hvhdk_mini.h @@ -7,6 +7,8 @@ #include "hvgdk_mini.h" +#define HV_MAX_CONTIGUOUS_ALLOCATION_PAGES 8 + /* * Doorbell connection_info flags. */ |