loongarch/kvm: Fixed extioi hardware emulation bugs
LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7QOYY ------------------------------------------ When the extioi controller is enabled, the data in the extioi controller should not be emptied.Otherwise, the interrupt triggered when kdump re-enters the kernel will cause the register state in the extioi controller to be inconsistent with the ESTAT register state after extioi is enabled, and finally cause the extended interrupt to be triggered all the time. Signed-off-by: Nxianglai li <lixianglai@loongson.cn>
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