linux-kernel - [PATCH 11/12] kvm: s390: export kvm_s390_pv*_is

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Message-Id: <20230815184333.6554-12-akrowiak@linux.ibm.com>
Date:   Tue, 15 Aug 2023 14:43:32 -0400
From:   Tony Krowiak <akrowiak@...ux.ibm.com>
To:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     jjherne@...ux.ibm.com, freude@...ux.ibm.com,
        borntraeger@...ibm.com, cohuck@...hat.com, mjrosato@...ux.ibm.com,
        pasic@...ux.ibm.com, alex.williamson@...hat.com,
        kwankhede@...dia.com, fiuczy@...ux.ibm.com,
        Janosch Frank <frankja@...ux.ibm.com>,
        Viktor Mihajlovski <mihajlov@...ux.ibm.com>
Subject: [PATCH 11/12] kvm: s390: export kvm_s390_pv*_is_protected functions

Export the kvm_s390_pv_is_protected and kvm_s390_pv_cpu_is_protected
functions so that they can be called from other modules that carry a
GPL-compatible license.

Signed-off-by: Janosch Frank <frankja@...ux.ibm.com>
Signed-off-by: Tony Krowiak <akrowiak@...ux.ibm.com>
Tested-by: Viktor Mihajlovski <mihajlov@...ux.ibm.com>
---
 arch/s390/include/asm/kvm_host.h |  3 +++
 arch/s390/kvm/kvm-s390.h         | 12 ------------
 arch/s390/kvm/pv.c               | 14 ++++++++++++++
 3 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 2bbc3d54959d..91bfecb91321 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -1028,6 +1028,9 @@ static inline int sie64a(struct kvm_s390_sie_block *sie_block, u64 *rsa)
 
 extern char sie_exit;
 
+bool kvm_s390_pv_is_protected(struct kvm *kvm);
+bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu);
+
 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc);
 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc);
 
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 0261d42c7d01..a7ea80cfa445 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -270,18 +270,6 @@ static inline u64 kvm_s390_pv_cpu_get_handle(struct kvm_vcpu *vcpu)
 	return vcpu->arch.pv.handle;
 }
 
-static inline bool kvm_s390_pv_is_protected(struct kvm *kvm)
-{
-	lockdep_assert_held(&kvm->lock);
-	return !!kvm_s390_pv_get_handle(kvm);
-}
-
-static inline bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu)
-{
-	lockdep_assert_held(&vcpu->mutex);
-	return !!kvm_s390_pv_cpu_get_handle(vcpu);
-}
-
 /* implemented in interrupt.c */
 int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);
 void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu);
diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c
index bf1fdc7bf89e..8d3f39a8a11e 100644
--- a/arch/s390/kvm/pv.c
+++ b/arch/s390/kvm/pv.c
@@ -18,6 +18,20 @@
 #include <linux/mmu_notifier.h>
 #include "kvm-s390.h"
 
+bool kvm_s390_pv_is_protected(struct kvm *kvm)
+{
+	lockdep_assert_held(&kvm->lock);
+	return !!kvm_s390_pv_get_handle(kvm);
+}
+EXPORT_SYMBOL_GPL(kvm_s390_pv_is_protected);
+
+bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu)
+{
+	lockdep_assert_held(&vcpu->mutex);
+	return !!kvm_s390_pv_cpu_get_handle(vcpu);
+}
+EXPORT_SYMBOL_GPL(kvm_s390_pv_cpu_is_protected);
+
 /**
  * struct pv_vm_to_be_destroyed - Represents a protected VM that needs to
  * be destroyed
-- 
2.39.3