linux-kernel - [PATCH RFC v1 8/9] KVM: Move kvm_for_each_memslot_in_hva

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Date:   Tue, 8 Mar 2022 10:08:56 +0530
From:   Nikunj A Dadhania <nikunj@....com>
To:     Paolo Bonzini <pbonzini@...hat.com>
CC:     Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Brijesh Singh <brijesh.singh@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Peter Gonda <pgonda@...gle.com>,
        Bharata B Rao <bharata@....com>,
        "Maciej S . Szmigiero" <mail@...iej.szmigiero.name>,
        Mingwei Zhang <mizhang@...gle.com>,
        "David Hildenbrand" <david@...hat.com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Nikunj A Dadhania <nikunj@....com>
Subject: [PATCH RFC v1 8/9] KVM: Move kvm_for_each_memslot_in_hva_range() to be used in SVM

Move the macro to kvm_host.h and make if visible for SVM to use.

No functional change intended.

Suggested-by: Maciej S. Szmigiero <mail@...iej.szmigiero.name>
Signed-off-by: Nikunj A Dadhania <nikunj@....com>
---
 include/linux/kvm_host.h | 6 ++++++
 virt/kvm/kvm_main.c      | 6 ------
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c23022960d51..d72f692725d2 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1063,6 +1063,12 @@ static inline bool kvm_memslot_iter_is_valid(struct kvm_memslot_iter *iter, gfn_
 	     kvm_memslot_iter_is_valid(iter, end);			\
 	     kvm_memslot_iter_next(iter))
 
+/* Iterate over each memslot intersecting [start, last] (inclusive) range */
+#define kvm_for_each_memslot_in_hva_range(node, slots, start, last)	     \
+	for (node = interval_tree_iter_first(&slots->hva_tree, start, last); \
+	     node;							     \
+	     node = interval_tree_iter_next(node, start, last))
+
 /*
  * KVM_SET_USER_MEMORY_REGION ioctl allows the following operations:
  * - create a new memory slot
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c035fe6b39ec..ff890f41c7ce 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -511,12 +511,6 @@ static void kvm_null_fn(void)
 }
 #define IS_KVM_NULL_FN(fn) ((fn) == (void *)kvm_null_fn)
 
-/* Iterate over each memslot intersecting [start, last] (inclusive) range */
-#define kvm_for_each_memslot_in_hva_range(node, slots, start, last)	     \
-	for (node = interval_tree_iter_first(&slots->hva_tree, start, last); \
-	     node;							     \
-	     node = interval_tree_iter_next(node, start, last))	     \
-
 static __always_inline int __kvm_handle_hva_range(struct kvm *kvm,
 						  const struct kvm_hva_range *range)
 {
-- 
2.32.0