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-rw-r--r--arch/s390/include/asm/kvm_host.h3
-rw-r--r--arch/s390/include/asm/uv.h6
-rw-r--r--arch/s390/kernel/uv.c3
-rw-r--r--arch/s390/kvm/kvm-s390.h12
-rw-r--r--arch/s390/kvm/pv.c14
5 files changed, 25 insertions, 13 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/include/asm/uv.h b/arch/s390/include/asm/uv.h
index d6bb2f4f78d1..d2cd42bb2c26 100644
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -463,6 +463,7 @@ static inline int is_prot_virt_host(void)
return prot_virt_host;
}
+int uv_pin_shared(unsigned long paddr);
int gmap_make_secure(struct gmap *gmap, unsigned long gaddr, void *uvcb);
int gmap_destroy_page(struct gmap *gmap, unsigned long gaddr);
int uv_destroy_owned_page(unsigned long paddr);
@@ -475,6 +476,11 @@ void setup_uv(void);
#define is_prot_virt_host() 0
static inline void setup_uv(void) {}
+static inline int uv_pin_shared(unsigned long paddr)
+{
+ return 0;
+}
+
static inline int uv_destroy_owned_page(unsigned long paddr)
{
return 0;
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index 66f0eb1c872b..b771f1b4cdd1 100644
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -88,7 +88,7 @@ fail:
* Requests the Ultravisor to pin the page in the shared state. This will
* cause an intercept when the guest attempts to unshare the pinned page.
*/
-static int uv_pin_shared(unsigned long paddr)
+int uv_pin_shared(unsigned long paddr)
{
struct uv_cb_cfs uvcb = {
.header.cmd = UVC_CMD_PIN_PAGE_SHARED,
@@ -100,6 +100,7 @@ static int uv_pin_shared(unsigned long paddr)
return -EINVAL;
return 0;
}
+EXPORT_SYMBOL_GPL(uv_pin_shared);
/*
* Requests the Ultravisor to destroy a guest page and make it
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