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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/s390/kvm/kvm-s390.h
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@@ -2,7 +2,7 @@
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 /*
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  * definition for kvm on s390
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  *
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- * Copyright IBM Corp. 2008, 2009
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+ * Copyright IBM Corp. 2008, 2020
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  *
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  *    Author(s): Carsten Otte <cotte@de.ibm.com>
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  *               Christian Borntraeger <borntraeger@de.ibm.com>
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@@ -15,6 +15,7 @@
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 #include <linux/hrtimer.h>
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 #include <linux/kvm.h>
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 #include <linux/kvm_host.h>
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+#include <linux/lockdep.h>
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 #include <asm/facility.h>
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 #include <asm/processor.h>
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 #include <asm/sclp.h>
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@@ -25,6 +26,17 @@
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 #define IS_ITDB_VALID(vcpu)	((*(char *)vcpu->arch.sie_block->itdba == TDB_FORMAT1))
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 extern debug_info_t *kvm_s390_dbf;
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+extern debug_info_t *kvm_s390_dbf_uv;
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+
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+#define KVM_UV_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
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+do { \
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+	debug_sprintf_event((d_kvm)->arch.dbf, d_loglevel, d_string "\n", \
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+	  d_args); \
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+	debug_sprintf_event(kvm_s390_dbf_uv, d_loglevel, \
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+			    "%d: " d_string "\n", (d_kvm)->userspace_pid, \
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+			    d_args); \
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+} while (0)
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+
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 #define KVM_EVENT(d_loglevel, d_string, d_args...)\
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 do { \
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 	debug_sprintf_event(kvm_s390_dbf, d_loglevel, d_string "\n", \
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@@ -67,7 +79,7 @@
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 static inline int is_vcpu_idle(struct kvm_vcpu *vcpu)
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 {
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-	return test_bit(kvm_vcpu_get_idx(vcpu), vcpu->kvm->arch.float_int.idle_mask);
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+	return test_bit(kvm_vcpu_get_idx(vcpu), vcpu->kvm->arch.idle_mask);
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 }
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 static inline int kvm_is_ucontrol(struct kvm *kvm)
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@@ -196,6 +208,39 @@
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 	return kvm->arch.user_cpu_state_ctrl != 0;
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 }
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+/* implemented in pv.c */
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+int kvm_s390_pv_destroy_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc);
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+int kvm_s390_pv_create_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc);
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+int kvm_s390_pv_deinit_vm(struct kvm *kvm, u16 *rc, u16 *rrc);
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+int kvm_s390_pv_init_vm(struct kvm *kvm, u16 *rc, u16 *rrc);
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+int kvm_s390_pv_set_sec_parms(struct kvm *kvm, void *hdr, u64 length, u16 *rc,
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+			      u16 *rrc);
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+int kvm_s390_pv_unpack(struct kvm *kvm, unsigned long addr, unsigned long size,
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+		       unsigned long tweak, u16 *rc, u16 *rrc);
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+int kvm_s390_pv_set_cpu_state(struct kvm_vcpu *vcpu, u8 state);
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+
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+static inline u64 kvm_s390_pv_get_handle(struct kvm *kvm)
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+{
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+	return kvm->arch.pv.handle;
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+}
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+
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+static inline u64 kvm_s390_pv_cpu_get_handle(struct kvm_vcpu *vcpu)
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+{
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+	return vcpu->arch.pv.handle;
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+}
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+
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+static inline bool kvm_s390_pv_is_protected(struct kvm *kvm)
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+{
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+	lockdep_assert_held(&kvm->lock);
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+	return !!kvm_s390_pv_get_handle(kvm);
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+}
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+
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+static inline bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu)
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+{
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+	lockdep_assert_held(&vcpu->mutex);
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+	return !!kvm_s390_pv_cpu_get_handle(vcpu);
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+}
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+
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 /* implemented in interrupt.c */
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 int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);
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 void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu);
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@@ -281,15 +326,15 @@
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 int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
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 /* implemented in kvm-s390.c */
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-void kvm_s390_set_tod_clock(struct kvm *kvm,
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-			    const struct kvm_s390_vm_tod_clock *gtod);
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+int kvm_s390_try_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod);
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 long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
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 int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
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 int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr);
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-void kvm_s390_vcpu_start(struct kvm_vcpu *vcpu);
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-void kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu);
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+int kvm_s390_vcpu_start(struct kvm_vcpu *vcpu);
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+int kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu);
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 void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu);
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 void kvm_s390_vcpu_unblock(struct kvm_vcpu *vcpu);
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+bool kvm_s390_vcpu_sie_inhibited(struct kvm_vcpu *vcpu);
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 void exit_sie(struct kvm_vcpu *vcpu);
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 void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu);
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 int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu);
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@@ -381,6 +426,8 @@
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 void kvm_s390_gisa_init(struct kvm *kvm);
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 void kvm_s390_gisa_clear(struct kvm *kvm);
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 void kvm_s390_gisa_destroy(struct kvm *kvm);
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+int kvm_s390_gib_init(u8 nisc);
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+void kvm_s390_gib_destroy(void);
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 /* implemented in guestdbg.c */
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 void kvm_s390_backup_guest_per_regs(struct kvm_vcpu *vcpu);