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>

hw/intc/riscv_aplic.c

@@ -32,7 +32,7 @@
 #include "target/riscv/cpu.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/kvm.h"
-#include "kvm_riscv.h"
+#include "kvm/kvm_riscv.h"
 #include "migration/vmstate.h"
 
 #define APLIC_MAX_IDC                  (1UL << 14)

hw/riscv/virt.c

@@ -35,7 +35,7 @@
 #include "hw/riscv/virt.h"
 #include "hw/riscv/boot.h"
 #include "hw/riscv/numa.h"
-#include "kvm_riscv.h"
+#include "kvm/kvm_riscv.h"
 #include "hw/intc/riscv_aclint.h"
 #include "hw/intc/riscv_aplic.h"
 #include "hw/intc/riscv_imsic.h"

target/riscv/cpu.c

@@ -33,7 +33,7 @@
 #include "fpu/softfloat-helpers.h"
 #include "sysemu/kvm.h"
 #include "sysemu/tcg.h"
-#include "kvm_riscv.h"
+#include "kvm/kvm_riscv.h"
 #include "tcg/tcg.h"
 
 /* RISC-V CPU definitions */

target/riscv/kvm/meson.build

@@ -0,0 +1 @@
+riscv_ss.add(when: 'CONFIG_KVM', if_true: files('kvm-cpu.c'))

target/riscv/meson.build

@@ -24,7 +24,6 @@ riscv_ss.add(files(
   'zce_helper.c',
   'vcrypto_helper.c'
 ))
-riscv_ss.add(when: 'CONFIG_KVM', if_true: files('kvm.c'))
 
 riscv_system_ss = ss.source_set()
 riscv_system_ss.add(files(
@@ -39,6 +38,7 @@ riscv_system_ss.add(files(
 ))
 
 subdir('tcg')
+subdir('kvm')
 
 target_arch += {'riscv': riscv_ss}
 target_system_arch += {'riscv': riscv_system_ss}