diff options
Diffstat (limited to 'arch/arm64/kvm/hyp/include/nvhe')
| -rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/ffa.h | 17 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 3 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/include/nvhe/ffa.h b/arch/arm64/kvm/hyp/include/nvhe/ffa.h new file mode 100644 index 000000000000..1becb10ecd80 --- /dev/null +++ b/arch/arm64/kvm/hyp/include/nvhe/ffa.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2022 - Google LLC + * Author: Andrew Walbran <qwandor@google.com> + */ +#ifndef __KVM_HYP_FFA_H +#define __KVM_HYP_FFA_H + +#include <asm/kvm_host.h> + +#define FFA_MIN_FUNC_NUM 0x60 +#define FFA_MAX_FUNC_NUM 0x7F + +int hyp_ffa_init(void *pages); +bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt); + +#endif /* __KVM_HYP_FFA_H */ diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index b7bdbe63deed..0972faccc2af 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -57,6 +57,7 @@ extern struct host_mmu host_mmu; enum pkvm_component_id { PKVM_ID_HOST, PKVM_ID_HYP, + PKVM_ID_FFA, }; extern unsigned long hyp_nr_cpus; @@ -66,6 +67,8 @@ int __pkvm_host_share_hyp(u64 pfn); int __pkvm_host_unshare_hyp(u64 pfn); int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages); int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages); +int __pkvm_host_share_ffa(u64 pfn, u64 nr_pages); +int __pkvm_host_unshare_ffa(u64 pfn, u64 nr_pages); bool addr_is_memory(phys_addr_t phys); int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot); |