author: Linus Torvalds <torvalds@linux-foundation.org> 2021-09-07 13:40:51 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2021-09-07 13:40:51 -0700
commit: 192ad3c27a4895ee4b2fa31c5b54a932f5bb08c1
parent: a2b28235335fee2586b4bd16448fb59ed6c80eef
Commit Summary:
Diffstat:
1 file changed, 7 insertions, 4 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index d9e4aabcb31a..a067410ebea5 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1965,7 +1965,9 @@ struct kvm_stats_header {
#define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
#define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
-#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_PEAK
+#define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
+#define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
+#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
#define KVM_STATS_UNIT_SHIFT 4
#define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
@@ -1988,8 +1990,9 @@ struct kvm_stats_header {
* @size: The number of data items for this stats.
* Every data item is of type __u64.
* @offset: The offset of the stats to the start of stat structure in
- * struture kvm or kvm_vcpu.
- * @unused: Unused field for future usage. Always 0 for now.
+ * structure kvm or kvm_vcpu.
+ * @bucket_size: A parameter value used for histogram stats. It is only used
+ * for linear histogram stats, specifying the size of the bucket;
* @name: The name string for the stats. Its size is indicated by the
* &kvm_stats_header->name_size.
*/
@@ -1998,7 +2001,7 @@ struct kvm_stats_desc {
__s16 exponent;
__u16 size;
__u32 offset;
- __u32 unused;
+ __u32 bucket_size;
char name[];
};