Synchronizing upstream patch

**【标题描述】能够简要描述问题：说明什么场景下，做了什么操作，出现什么问题（尽量使用正向表达方式）**
同步linux上游社区关于loongarch虚拟化相关的patch，这些patch主要是对现有代码进行优化，优化涉及扩展中断控制器(exiointc) 定时器仿真和cpucfg仿真
**一、缺陷信息**

**内核信息：**

**缺陷归属组件：**

**缺陷归属的版本：**

**缺陷简述：**

**【环境信息】**
硬件信息
- 裸机场景请提供问题的硬件信息
- 虚拟机场景请提供虚拟机的XML文件或配置信息
软件信息
- OS版本及分支信息
- 内核信息
- 发现问题的组件版本信息
网络信息
- 如果有特殊组网，请提供网络拓扑信息

**【问题复现步骤】**，请描述具体的操作步骤
**【实际结果】**，请描述出问题的结果和影响
**【其他相关附件信息】**
比如系统message日志/组件日志、dump信息、图片等

**缺陷详情参考链接：**

**缺陷分析指导链接：**
https：xxx

验证：
物理机更换内核之后的输出
```
[root@localhost share]# uname -a
Linux localhost.localdomain 6.6.0+ #5 SMP Thu Mar 28 17:22:31 CST 2024 loongarch64 loongarch64 loongarch64 GNU/Linux

[root@localhost share]# cat /etc/os-release 
NAME="openEuler"
VERSION="22.03 LTS"
ID="openEuler"
VERSION_ID="22.03"
PRETTY_NAME="openEuler 22.03 LTS"
ANSI_COLOR="0;31"

```
1、更换物理机以及虚拟机内核，启动虚拟机
启动虚拟机时带有网络 串口 USB键盘鼠标 显卡 磁盘等设备，各种设备均正常工作，exioi优化没有问题
虚拟机更换内核后的信息
```
[root@fedora ~]# uname -a
Linux fedora 6.6.0+ #5 SMP Thu Mar 28 17:22:31 CST 2024 loongarch64 GNU/Linux
[root@fedora ~]# cat /etc/os-release 
NAME="Fedora Linux"
VERSION="38 (MATE-Compiz Prerelease)"
ID=fedora
VERSION_ID=38
VERSION_CODENAME=""
PLATFORM_ID="platform:f38"
PRETTY_NAME="Fedora Linux 38 (MATE-Compiz Prerelease)"
ANSI_COLOR="0;38;2;60;110;180"
LOGO=fedora-logo-icon
CPE_NAME="cpe:/o:fedoraproject:fedora:38"
DEFAULT_HOSTNAME="fedora"
HOME_URL="https://fedoraproject.org/"
DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/rawhide/system-administrators-guide/"
SUPPORT_URL="https://ask.fedoraproject.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=rawhide
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=rawhide
VARIANT="MATE-Compiz"
VARIANT_ID=matecompiz

```

虚拟机启动所需要的xml
```
<domain type="kvm">
  <name>debian11</name>
  <uuid>7584050c-71b7-499c-bcb7-c8243bc526cd</uuid>
  <metadata>
    <libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
      <libosinfo:os id="http://debian.org/debian/11"/>
    </libosinfo:libosinfo>
  </metadata>
  <memory unit="KiB">4194304</memory>
  <currentMemory unit="KiB">4194304</currentMemory>
  <vcpu placement="static">2</vcpu>
  <os firmware="efi">
    <type arch="loongarch64" machine="virt">hvm</type>
    <firmware>
      <feature enabled="no" name="enrolled-keys"/>
      <feature enabled="no" name="secure-boot"/>
    </firmware>
    <loader readonly="yes" type="pflash">/usr/share/edk2/loongarch64/QEMU_EFI.fd</loader>
    <nvram template="/usr/share/edk2/loongarch64/QEMU_VARS.fd">/var/lib/libvirt/qemu/nvram/debian11_VARS.fd</nvram>
    <boot dev="hd"/>
  </os>
  <features>
    <acpi/>
  </features>
  <cpu mode="custom" match="exact" check="partial">
    <model fallback="allow">la464</model>
  </cpu>
  <clock offset="utc"/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-loongarch64</emulator>
    <disk type="file" device="disk">
      <driver name="qemu" type="qcow2"/>
      <source file="/root/share/root/fedora-mate.qcow2"/>
      <target dev="vda" bus="virtio"/>
      <address type="pci" domain="0x0000" bus="0x08" slot="0x00" function="0x0"/>
    </disk>
    <controller type="usb" index="0" model="qemu-xhci" ports="15">
      <address type="pci" domain="0x0000" bus="0x02" slot="0x00" function="0x0"/>
    </controller>
    <controller type="pci" index="0" model="pcie-root"/>
    <controller type="pci" index="1" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="1" port="0x8"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0" multifunction="on"/>
    </controller>
    <controller type="pci" index="2" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="2" port="0x9"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x1"/>
    </controller>
    <controller type="pci" index="3" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="3" port="0xa"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x2"/>
    </controller>
    <controller type="pci" index="4" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="4" port="0xb"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x3"/>
    </controller>
    <controller type="pci" index="5" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="5" port="0xc"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x4"/>
    </controller>
    <controller type="pci" index="6" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="6" port="0xd"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x5"/>
    </controller>
    <controller type="pci" index="7" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="7" port="0xe"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x6"/>
    </controller>
    <controller type="pci" index="8" model="pcie-root-port">
      <model name="pcie-root-port"/>
      <target chassis="8" port="0xf"/>
      <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x7"/>
    </controller>
    <controller type="pci" index="9" model="pcie-to-pci-bridge">
      <model name="pcie-pci-bridge"/>
      <address type="pci" domain="0x0000" bus="0x07" slot="0x00" function="0x0"/>
    </controller>
    <controller type="virtio-serial" index="0">
      <address type="pci" domain="0x0000" bus="0x03" slot="0x00" function="0x0"/>
    </controller>
    <controller type="scsi" index="0" model="virtio-scsi">
      <address type="pci" domain="0x0000" bus="0x04" slot="0x00" function="0x0"/>
    </controller>
    <controller type="sata" index="0">
      <address type="pci" domain="0x0000" bus="0x09" slot="0x01" function="0x0"/>
    </controller>
    <interface type="network">
      <mac address="52:54:00:53:7e:07"/>
      <source network="default"/>
      <model type="virtio"/>
      <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/>
    </interface>
    <serial type="pty">
      <target type="system-serial" port="0">
        <model name="16550a"/>
      </target>
    </serial>
    <console type="pty">
      <target type="serial" port="0"/>
    </console>
    <channel type="unix">
      <target type="virtio" name="org.qemu.guest_agent.0"/>
      <address type="virtio-serial" controller="0" bus="0" port="1"/>
    </channel>
    <input type="tablet" bus="usb">
      <address type="usb" bus="0" port="1"/>
    </input>
    <input type="keyboard" bus="usb">
      <address type="usb" bus="0" port="2"/>
    </input>
    <graphics type="vnc" port="-1" autoport="yes">
      <listen type="address"/>
    </graphics>
    <audio id="1" type="none"/>
    <video>
      <model type="virtio" heads="1" primary="yes"/>
      <address type="pci" domain="0x0000" bus="0x06" slot="0x00" function="0x0"/>
    </video>
    <memballoon model="virtio">
      <address type="pci" domain="0x0000" bus="0x05" slot="0x00" function="0x0"/>
    </memballoon>
  </devices>
</domain>

```

2、虚拟机dmesg无异常报错，且没有挂死，kvm timer相关修改没有问题
![输入图片说明](https://foruda.gitee.com/images/1711697875335993039/863abda2_11505457.png "openEuler.png")
3、多核启动虚拟机输出如下，多核可以正常启动，ipi相关修改没有问题
```
[root@fedora ~]# lscpu
架构：               loongarch64
  字节序：           Little Endian
CPU:                 2
  在线 CPU 列表：    0,1
BIOS 厂商 ID：       QEMU
型号名称：           -
  BIOS 型号名称：    virt  CPU @ 2.0GHz
  BIOS CPU family:   1
  每个核的线程数：   1
  每个座的核数：     1
  座：               2
  BogoMIPS：         4000.00
  标记：             cpucfg lam ual fpu lsx lasx crc32
Caches (sum of all): 
  L1d:               128 KiB (2 instances)
  L1i:               128 KiB (2 instances)
  L2:                512 KiB (2 instances)
  L3:                16 MiB (1 instance)
NUMA:                
  NUMA 节点：        1
  NUMA 节点0 CPU：   0,1
```

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