RISC-V: ACPI: Enable AIA, PLIC and update RHCT, generate SPCR · Pull Request !1544 · openEuler/qemu

**【验证方法】** 
 **1. qemu仿真环境进行验证。** 
qemu仿真器版本：

```
[root@localhost]# /usr/bin/qemu-system-riscv64 --version
QEMU emulator version 10.0.0 (qemu-10.0.0-6)
Copyright (c) 2003-2025 Fabrice Bellard and the QEMU Project developers
```
仿真器使用的内核版本：

```
[root@localhost qemu]# uname -a
Linux localhost.localdomain 6.14.0-rc4-dirty #32 SMP Sat Jun  7 16:50:04 CST 2025 riscv64 riscv64 riscv64 GNU/Linux
```
 **2. qemu-kvm虚拟机启动** 
qemu-kvm虚拟机内核版本：6.14.0
qemu-kvm虚拟机启动命令：

```
/usr/bin/qemu-system-riscv64 \
        -nographic -enable-kvm \
        -machine virt,pflash0=pflash0,pflash1=pflash1,acpi=on,aia=aplic-imsic,accel=kvm \
        -blockdev node-name=pflash0,driver=file,read-only=on,filename="./RISCV_VIRT_CODE.fd" \
        -blockdev node-name=pflash1,driver=file,filename="./riscv_test_VARS.fd" \
        -smp 4,sockets=2,dies=1,clusters=1,cores=2,threads=1 \
        -m 4G \
        -object memory-backend-ram,size=2G,id=ram1 \
        -numa node,memdev=ram1 \
        -object memory-backend-ram,size=2G,id=ram2 \
        -numa node,memdev=ram2 \
        -kernel /boot/vmlinuz-6.14.0 \
        -initrd rootfs.cpio \
        -append "no_hash_pointers crashkernel=128M loglevel=8 no5lvl earlycon console=ttyS0 root=/dev/ram rdinit=sbin/init"
        -object rng-random,filename=/dev/urandom,id=rng0 \
        -device virtio-rng-device,rng=rng0 \
        -device virtio-net-pci,netdev=net1 \
        -netdev tap,id=net1,ifname=vnet1,script=no,downscript=no \
        -cpu host\
        -device qemu-xhci \
        -usb -device usb-kbd \
        -device usb-tablet \
        -chardev socket,id=qmp,path=/var/lib/libvirt/qemu/riscv-test,server=on,wait=off \
        -mon mode=control,chardev=qmp
```
虚拟机启动正常：

```
~ # uname -a
Linux (none) 6.14.0 #15 SMP Mon May 19 13:48:07 CST 2025 riscv64 GNU/Linux
~ # dmesg |grep ACPI
[    0.000000] efi: MEMATTR=0xfaabb198 ACPI=0xff8c1000 ACPI 2.0=0xff8c1014 INITRD=0xfaaa3f18 MEMRESERVE=0xfaaa3f98 
[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x00000000FF8C1014 000024 (v02 BOCHS )
[    0.000000] ACPI: XSDT 0x00000000FF8C00E8 000054 (v01 BOCHS  BXPC     00000001      01000013)
[    0.000000] ACPI: FACP 0x00000000FAB2B000 000114 (v06 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: DSDT 0x00000000FAB2A000 000F12 (v02 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: APIC 0x00000000FAB29000 000114 (v06 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: RHCT 0x00000000FAB28000 000122 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: SPCR 0x00000000FAB27000 000050 (v02 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: MCFG 0x00000000FAB26000 00003C (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: SRAT 0x00000000FAB25000 0000D0 (v03 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.000000] ACPI: SPCR: console: uart,mmio,0x10000000,115200
[    0.220391] ACPI: Core revision 20240827
[    0.776247] ACPI PPTT: No PPTT table found, CPU and cache topology may be inaccurate
[    3.733151] ACPI: Added _OSI(Module Device)
[    3.774359] ACPI: Added _OSI(Processor Device)
[    3.818096] ACPI: Added _OSI(3.0 _SCP Extensions)
[    3.862453] ACPI: Added _OSI(Processor Aggregator Device)
[    3.964089] ACPI: 1 ACPI AML tables successfully acquired and loaded
[    4.041117] ACPI: Interpreter enabled
[    4.076519] ACPI: Using RINTC for interrupt routing
[    4.124251] ACPI: MCFG table detected, 1 entries
[    4.587221] ACPI: bus type USB registered
[    5.118095] pnp: PnP ACPI init
[    5.152791] pnp: PnP ACPI: found 0 devices
```

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