target/riscv: move KVM only files to kvm subdir

Move the files to a 'kvm' dir to promote more code separation between
accelerators and making our lives easier supporting build options such
as --disable-tcg.

Rename kvm.c to kvm-cpu.c to keep it in line with its TCG counterpart.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230925175709.35696-13-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

target/riscv/kvm/kvm_riscv.h

@@ -0,0 +1,31 @@
+/*
+ * QEMU KVM support -- RISC-V specific functions.
+ *
+ * Copyright (c) 2020 Huawei Technologies Co., Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QEMU_KVM_RISCV_H
+#define QEMU_KVM_RISCV_H
+
+void kvm_riscv_reset_vcpu(RISCVCPU *cpu);
+void kvm_riscv_set_irq(RISCVCPU *cpu, int irq, int level);
+void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift,
+                          uint64_t aia_irq_num, uint64_t aia_msi_num,
+                          uint64_t aplic_base, uint64_t imsic_base,
+                          uint64_t guest_num);
+void riscv_kvm_aplic_request(void *opaque, int irq, int level);
+int kvm_riscv_sync_mpstate_to_kvm(RISCVCPU *cpu, int state);
+
+#endif