[PATCH v19 04/20] KVM: arm64: Avoid including linux/kvm_host.h in kvm_pgtable.h

[Suzuki K Poulose <suzuki.poulose@arm.com>]

From: Steven Price <steven.price@arm.com>

To avoid future include cycles, drop the linux/kvm_host.h include in
kvm_pgtable.h and include the lightweight headers required for the types
and inline helpers used there. Additionally provide a forward
declaration for struct kvm_s2_mmu as it's only used as a pointer in this
file.

Both pgtable.c and kvm_pkvm.h relied on the indirect inclusion of
kvm_host.h, so make that explicit.

Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 arch/arm64/include/asm/kvm_pgtable.h | 6 +++++-
 arch/arm64/include/asm/kvm_pkvm.h    | 2 +-
 arch/arm64/kvm/hyp/pgtable.c         | 1 +
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 41a8687938eb6..c2e4b29e605fc 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -8,9 +8,13 @@
 #define __ARM64_KVM_PGTABLE_H__
 
 #include <linux/bits.h>
-#include <linux/kvm_host.h>
+#include <linux/kvm_types.h>
+#include <linux/rbtree_types.h>
+#include <linux/rcupdate.h>
 #include <linux/types.h>
 
+struct kvm_s2_mmu;
+
 #define KVM_PGTABLE_FIRST_LEVEL		-1
 #define KVM_PGTABLE_LAST_LEVEL		3
 
diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index beea00e693a0a..54a618d887fa4 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -7,9 +7,9 @@
 #define __ARM64_KVM_PKVM_H__
 
 #include <linux/arm_ffa.h>
+#include <linux/kvm_host.h>
 #include <linux/memblock.h>
 #include <linux/scatterlist.h>
-#include <asm/kvm_host.h>
 #include <asm/kvm_pgtable.h>
 
 /* Maximum number of VMs that can co-exist under pKVM. */
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index b74dd5ce1efd3..f48253b9d88b5 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/kvm_host.h>
 #include <asm/kvm_pgtable.h>
 #include <asm/stage2_pgtable.h>
 
-- 
2.43.0