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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2022 - Google LLC
4  * Author: Andrew Walbran <qwandor@google.com>
5  */
6 #ifndef __KVM_HYP_FFA_H
7 #define __KVM_HYP_FFA_H
8 
9 #include <asm/kvm_host.h>
10 #include <nvhe/spinlock.h>
11 
12 #define FFA_MIN_FUNC_NUM 0x60
13 #define FFA_MAX_FUNC_NUM 0x7F
14 
15 struct kvm_ffa_buffers {
16 	hyp_spinlock_t lock;
17 	void *tx;
18 	void *rx;
19 };
20 
21 int hyp_ffa_init(void *pages);
22 bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt);
23 
24 #endif /* __KVM_HYP_FFA_H */
25