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[v8,04/12] KVM: arm64: Export kvm_are_all_memslots_empty()

Message ID 20230426172330.1439644-5-ricarkol@google.com (mailing list archive)
State New, archived
Headers show
Series Implement Eager Page Splitting for ARM | expand

Commit Message

Ricardo Koller April 26, 2023, 5:23 p.m. UTC 
Export kvm_are_all_memslots_empty(). This will be used by a future
commit when checking before setting a capability.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
---
 include/linux/kvm_host.h | 2 ++
 virt/kvm/kvm_main.c      | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 8ada23756b0ec..c6fa634f236d9 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -990,6 +990,8 @@  static inline bool kvm_memslots_empty(struct kvm_memslots *slots)
 	return RB_EMPTY_ROOT(&slots->gfn_tree);
 }
 
+bool kvm_are_all_memslots_empty(struct kvm *kvm);
+
 #define kvm_for_each_memslot(memslot, bkt, slots)			      \
 	hash_for_each(slots->id_hash, bkt, memslot, id_node[slots->node_idx]) \
 		if (WARN_ON_ONCE(!memslot->npages)) {			      \
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d255964ec331e..58074ecd346c9 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -4596,7 +4596,7 @@  int __attribute__((weak)) kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 	return -EINVAL;
 }
 
-static bool kvm_are_all_memslots_empty(struct kvm *kvm)
+bool kvm_are_all_memslots_empty(struct kvm *kvm)
 {
 	int i;
 
@@ -4609,6 +4609,7 @@  static bool kvm_are_all_memslots_empty(struct kvm *kvm)
 
 	return true;
 }
+EXPORT_SYMBOL_GPL(kvm_are_all_memslots_empty);
 
 static int kvm_vm_ioctl_enable_cap_generic(struct kvm *kvm,
 					   struct kvm_enable_cap *cap)