linux-kernel - [PATCH v12 09/12] KVM: selftests: Use proper uAPI headers to pick up mempolicy.h definitions

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Message-ID: <20251007221420.344669-10-seanjc@google.com>
Date: Tue,  7 Oct 2025 15:14:17 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, 
	Paolo Bonzini <pbonzini@...hat.com>, Sean Christopherson <seanjc@...gle.com>
Cc: linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev, 
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	David Hildenbrand <david@...hat.com>, Fuad Tabba <tabba@...gle.com>, 
	Ackerley Tng <ackerleytng@...gle.com>, Shivank Garg <shivankg@....com>, 
	Ashish Kalra <ashish.kalra@....com>, Vlastimil Babka <vbabka@...e.cz>
Subject: [PATCH v12 09/12] KVM: selftests: Use proper uAPI headers to pick up
 mempolicy.h definitions

Include mempolicy.h in KVM's numaif.h to pick up the kernel-provided NUMA
definitions, and drop selftests' definitions, which are _mostly_
equivalent.  The syscall numbers in particular are subtly x86_64-specific,
i.e. will cause problems if/when numaif.h is used outsize of x86.

Opportunistically clean up the file comment and make the syscall wrappers
static inline so that including the header multiple times won't lead to
weirdness (currently numaif.h is included by exactly one header).

Fixes: 346b59f220a2 ("KVM: selftests: Add missing header file needed by xAPIC IPI tests")
Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 tools/testing/selftests/kvm/include/numaif.h | 32 +-------------------
 1 file changed, 1 insertion(+), 31 deletions(-)

diff --git a/tools/testing/selftests/kvm/include/numaif.h b/tools/testing/selftests/kvm/include/numaif.h
index aaa4ac174890..1554003c40a1 100644
--- a/tools/testing/selftests/kvm/include/numaif.h
+++ b/tools/testing/selftests/kvm/include/numaif.h
@@ -1,14 +1,5 @@
 /* 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.
- */
+/* Copyright (C) 2020, Google LLC. */
 
 #ifndef SELFTEST_KVM_NUMAIF_H
 #define SELFTEST_KVM_NUMAIF_H
@@ -37,25 +28,4 @@ KVM_SYSCALL_DEFINE(mbind, 6, void *, addr, unsigned long, size, int, mode,
 		   const unsigned long *, nodemask, unsigned long, maxnode,
 		   unsigned int, flags);
 
-/* 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 */
-- 
2.51.0.710.ga91ca5db03-goog