linux-kernel - [PATCH RFC v7 08/64] KVM: Move kvm_for_each_memslot_in_hva

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Date:   Wed, 14 Dec 2022 13:40:00 -0600
From:   Michael Roth <michael.roth@....com>
To:     <kvm@...r.kernel.org>
CC:     <linux-coco@...ts.linux.dev>, <linux-mm@...ck.org>,
        <linux-crypto@...r.kernel.org>, <x86@...nel.org>,
        <linux-kernel@...r.kernel.org>, <tglx@...utronix.de>,
        <mingo@...hat.com>, <jroedel@...e.de>, <thomas.lendacky@....com>,
        <hpa@...or.com>, <ardb@...nel.org>, <pbonzini@...hat.com>,
        <seanjc@...gle.com>, <vkuznets@...hat.com>,
        <wanpengli@...cent.com>, <jmattson@...gle.com>, <luto@...nel.org>,
        <dave.hansen@...ux.intel.com>, <slp@...hat.com>,
        <pgonda@...gle.com>, <peterz@...radead.org>,
        <srinivas.pandruvada@...ux.intel.com>, <rientjes@...gle.com>,
        <dovmurik@...ux.ibm.com>, <tobin@....com>, <bp@...en8.de>,
        <vbabka@...e.cz>, <kirill@...temov.name>, <ak@...ux.intel.com>,
        <tony.luck@...el.com>, <marcorr@...gle.com>,
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        <alpergun@...gle.com>, <dgilbert@...hat.com>, <jarkko@...nel.org>,
        <ashish.kalra@....com>, <harald@...fian.com>,
        Nikunj A Dadhania <nikunj@....com>,
        "Maciej S . Szmigiero" <mail@...iej.szmigiero.name>
Subject: [PATCH RFC v7 08/64] KVM: Move kvm_for_each_memslot_in_hva_range() to be used in SVM

From: Nikunj A Dadhania <nikunj@....com>

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>
Signed-off-by: Michael Roth <michael.roth@....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 f72a2e0b8699..43b5c5aa8e80 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1116,6 +1116,12 @@ 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 73bf0bdedb59..a2306ccf9ab1 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -623,12 +623,6 @@ 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)
 {
-- 
2.25.1