Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
mshv: Handle insufficient root memory hypervisor statuses
When creating guest partition objects, the hypervisor may fail to
allocate root partition pages and return an insufficient memory status.
In this case, deposit memory using the root partition ID instead.
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>
authored by
Stanislav Kinsburskii
and committed by
Wei Liu
158ebb57
cf82dd5e
+46
-28
+2
drivers/hv/hv_common.c
+2
drivers/hv/hv_common.c
···
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794
_STATUS_INFO(HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE, -EIO),
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_STATUS_INFO(HV_STATUS_INSUFFICIENT_MEMORY, -ENOMEM),
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_STATUS_INFO(HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY, -ENOMEM),
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+
_STATUS_INFO(HV_STATUS_INSUFFICIENT_ROOT_MEMORY, -ENOMEM),
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+
_STATUS_INFO(HV_STATUS_INSUFFICIENT_CONTIGUOUS_ROOT_MEMORY, -ENOMEM),
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_STATUS_INFO(HV_STATUS_INVALID_PARTITION_ID, -EINVAL),
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_STATUS_INFO(HV_STATUS_INVALID_VP_INDEX, -EINVAL),
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_STATUS_INFO(HV_STATUS_NOT_FOUND, -EIO),
+14
drivers/hv/hv_proc.c
+14
drivers/hv/hv_proc.c
···
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case HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY:
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num_pages = HV_MAX_CONTIGUOUS_ALLOCATION_PAGES;
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break;
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+
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+
case HV_STATUS_INSUFFICIENT_CONTIGUOUS_ROOT_MEMORY:
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num_pages = HV_MAX_CONTIGUOUS_ALLOCATION_PAGES;
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fallthrough;
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+
case HV_STATUS_INSUFFICIENT_ROOT_MEMORY:
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+
if (!hv_root_partition()) {
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hv_status_err(hv_status, "Unexpected root memory deposit\n");
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return -ENOMEM;
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+
}
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partition_id = HV_PARTITION_ID_SELF;
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+
break;
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+
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default:
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hv_status_err(hv_status, "Unexpected!\n");
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return -ENOMEM;
···
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switch (hv_result(status)) {
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case HV_STATUS_INSUFFICIENT_MEMORY:
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case HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY:
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+
case HV_STATUS_INSUFFICIENT_ROOT_MEMORY:
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+
case HV_STATUS_INSUFFICIENT_CONTIGUOUS_ROOT_MEMORY:
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return true;
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}
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return false;
+30
-28
include/hyperv/hvgdk_mini.h
+30
-28
include/hyperv/hvgdk_mini.h
···
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} __packed;
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/* NOTE: when adding below, update hv_result_to_string() */
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-
#define HV_STATUS_SUCCESS 0x0
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-
#define HV_STATUS_INVALID_HYPERCALL_CODE 0x2
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-
#define HV_STATUS_INVALID_HYPERCALL_INPUT 0x3
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-
#define HV_STATUS_INVALID_ALIGNMENT 0x4
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-
#define HV_STATUS_INVALID_PARAMETER 0x5
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-
#define HV_STATUS_ACCESS_DENIED 0x6
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-
#define HV_STATUS_INVALID_PARTITION_STATE 0x7
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-
#define HV_STATUS_OPERATION_DENIED 0x8
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-
#define HV_STATUS_UNKNOWN_PROPERTY 0x9
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-
#define HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE 0xA
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-
#define HV_STATUS_INSUFFICIENT_MEMORY 0xB
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-
#define HV_STATUS_INVALID_PARTITION_ID 0xD
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-
#define HV_STATUS_INVALID_VP_INDEX 0xE
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-
#define HV_STATUS_NOT_FOUND 0x10
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-
#define HV_STATUS_INVALID_PORT_ID 0x11
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-
#define HV_STATUS_INVALID_CONNECTION_ID 0x12
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-
#define HV_STATUS_INSUFFICIENT_BUFFERS 0x13
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-
#define HV_STATUS_NOT_ACKNOWLEDGED 0x14
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-
#define HV_STATUS_INVALID_VP_STATE 0x15
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-
#define HV_STATUS_NO_RESOURCES 0x1D
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-
#define HV_STATUS_PROCESSOR_FEATURE_NOT_SUPPORTED 0x20
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-
#define HV_STATUS_INVALID_LP_INDEX 0x41
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-
#define HV_STATUS_INVALID_REGISTER_VALUE 0x50
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-
#define HV_STATUS_OPERATION_FAILED 0x71
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-
#define HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY 0x75
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-
#define HV_STATUS_TIME_OUT 0x78
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-
#define HV_STATUS_CALL_PENDING 0x79
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-
#define HV_STATUS_VTL_ALREADY_ENABLED 0x86
17
+
#define HV_STATUS_SUCCESS 0x0
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+
#define HV_STATUS_INVALID_HYPERCALL_CODE 0x2
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+
#define HV_STATUS_INVALID_HYPERCALL_INPUT 0x3
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+
#define HV_STATUS_INVALID_ALIGNMENT 0x4
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+
#define HV_STATUS_INVALID_PARAMETER 0x5
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+
#define HV_STATUS_ACCESS_DENIED 0x6
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+
#define HV_STATUS_INVALID_PARTITION_STATE 0x7
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+
#define HV_STATUS_OPERATION_DENIED 0x8
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+
#define HV_STATUS_UNKNOWN_PROPERTY 0x9
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+
#define HV_STATUS_PROPERTY_VALUE_OUT_OF_RANGE 0xA
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+
#define HV_STATUS_INSUFFICIENT_MEMORY 0xB
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+
#define HV_STATUS_INVALID_PARTITION_ID 0xD
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+
#define HV_STATUS_INVALID_VP_INDEX 0xE
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+
#define HV_STATUS_NOT_FOUND 0x10
31
+
#define HV_STATUS_INVALID_PORT_ID 0x11
32
+
#define HV_STATUS_INVALID_CONNECTION_ID 0x12
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+
#define HV_STATUS_INSUFFICIENT_BUFFERS 0x13
34
+
#define HV_STATUS_NOT_ACKNOWLEDGED 0x14
35
+
#define HV_STATUS_INVALID_VP_STATE 0x15
36
+
#define HV_STATUS_NO_RESOURCES 0x1D
37
+
#define HV_STATUS_PROCESSOR_FEATURE_NOT_SUPPORTED 0x20
38
+
#define HV_STATUS_INVALID_LP_INDEX 0x41
39
+
#define HV_STATUS_INVALID_REGISTER_VALUE 0x50
40
+
#define HV_STATUS_OPERATION_FAILED 0x71
41
+
#define HV_STATUS_INSUFFICIENT_ROOT_MEMORY 0x73
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+
#define HV_STATUS_INSUFFICIENT_CONTIGUOUS_MEMORY 0x75
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+
#define HV_STATUS_TIME_OUT 0x78
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+
#define HV_STATUS_CALL_PENDING 0x79
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+
#define HV_STATUS_INSUFFICIENT_CONTIGUOUS_ROOT_MEMORY 0x83
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+
#define HV_STATUS_VTL_ALREADY_ENABLED 0x86
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/*
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* The Hyper-V TimeRefCount register and the TSC