KVM: selftests: Add missing header file needed by xAPIC IPI tests

Fixes: 678e90a349a4 ("KVM: selftests: Test IPI to halted vCPU in xAPIC while backing page moves")
Cc: Andrew Jones <drjones@redhat.com>
Cc: Jim Mattson <jmattson@google.com>
Signed-off-by: Peter Shier <pshier@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210210011747.240913-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/tools/testing/selftests/kvm/include/numaif.h b/tools/testing/selftests/kvm/include/numaif.h
new file mode 100644 (file)
index 0000000..b020547
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/numaif.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * tools/testing/selftests/kvm/include/numaif.h
+ *
+ * Copyright (C) 2020, Google LLC.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ * Header file that provides access to NUMA API functions not explicitly
+ * exported to user space.
+ */
+
+#ifndef SELFTEST_KVM_NUMAIF_H
+#define SELFTEST_KVM_NUMAIF_H
+
+#define __NR_get_mempolicy 239
+#define __NR_migrate_pages 256
+
+/* System calls */
+long get_mempolicy(int *policy, const unsigned long *nmask,
+                  unsigned long maxnode, void *addr, int flags)
+{
+       return syscall(__NR_get_mempolicy, policy, nmask,
+                      maxnode, addr, flags);
+}
+
+long migrate_pages(int pid, unsigned long maxnode,
+                  const unsigned long *frommask,
+                  const unsigned long *tomask)
+{
+       return syscall(__NR_migrate_pages, pid, maxnode, frommask, tomask);
+}
+
+/* Policies */
+#define MPOL_DEFAULT    0
+#define MPOL_PREFERRED  1
+#define MPOL_BIND       2
+#define MPOL_INTERLEAVE         3
+
+#define MPOL_MAX MPOL_INTERLEAVE
+
+/* Flags for get_mem_policy */
+#define MPOL_F_NODE        (1<<0)  /* return next il node or node of address */
+                                   /* Warning: MPOL_F_NODE is unsupported and
+                                    * subject to change. Don't use.
+                                    */
+#define MPOL_F_ADDR        (1<<1)  /* look up vma using address */
+#define MPOL_F_MEMS_ALLOWED (1<<2)  /* query nodes allowed in cpuset */
+
+/* Flags for mbind */
+#define MPOL_MF_STRICT      (1<<0) /* Verify existing pages in the mapping */
+#define MPOL_MF_MOVE        (1<<1) /* Move pages owned by this process to conform to mapping */
+#define MPOL_MF_MOVE_ALL     (1<<2) /* Move every page to conform to mapping */
+
+#endif /* SELFTEST_KVM_NUMAIF_H */