diff options
| author | Anup Patel <apatel@ventanamicro.com> | 2022-07-29 14:44:40 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-07-29 14:44:40 +0300 |
| commit | b91f0e4cb8a3ce4f2716a13739ade0f7bea8eadb (patch) | |
| tree | 29fab87cac1769e2683db465f6ac620118e31652 /arch/riscv/include/asm/kvm_vcpu_insn.h | |
| parent | fe283e5fa1edc59f37265c91dc79bf119a5ccc79 (diff) | |
| download | linux-b91f0e4cb8a3ce4f2716a13739ade0f7bea8eadb.tar.xz | |
RISC-V: KVM: Factor-out instruction emulation into separate sources
The instruction and CSR emulation for VCPU is going to grow over time
due to upcoming AIA, PMU, Nested and other virtualization features.
Let us factor-out VCPU instruction emulation from vcpu_exit.c to a
separate source dedicated for this purpose.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'arch/riscv/include/asm/kvm_vcpu_insn.h')
| -rw-r--r-- | arch/riscv/include/asm/kvm_vcpu_insn.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/kvm_vcpu_insn.h b/arch/riscv/include/asm/kvm_vcpu_insn.h new file mode 100644 index 000000000000..4e3ba4e84d0f --- /dev/null +++ b/arch/riscv/include/asm/kvm_vcpu_insn.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022 Ventana Micro Systems Inc. + */ + +#ifndef __KVM_VCPU_RISCV_INSN_H +#define __KVM_VCPU_RISCV_INSN_H + +struct kvm_vcpu; +struct kvm_run; +struct kvm_cpu_trap; + +struct kvm_mmio_decode { + unsigned long insn; + int insn_len; + int len; + int shift; + int return_handled; +}; + +void kvm_riscv_vcpu_wfi(struct kvm_vcpu *vcpu); +int kvm_riscv_vcpu_virtual_insn(struct kvm_vcpu *vcpu, struct kvm_run *run, + struct kvm_cpu_trap *trap); + +int kvm_riscv_vcpu_mmio_load(struct kvm_vcpu *vcpu, struct kvm_run *run, + unsigned long fault_addr, + unsigned long htinst); +int kvm_riscv_vcpu_mmio_store(struct kvm_vcpu *vcpu, struct kvm_run *run, + unsigned long fault_addr, + unsigned long htinst); +int kvm_riscv_vcpu_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run); + +#endif |