!809 LoongArch: defconfig: enable memory and pci hotplug related configs for LoongArch

Merge Pull Request from: @Hongchen_Zhang 
 
enable memory and pci hotplug related configs for LoongArch,
   used by LoongArch virtual machine now. 
 
Link:https://gitee.com/openeuler/kernel/pulls/809 

Reviewed-by: Guo Dongtai <guodongtai@kylinos.cn> 
Reviewed-by: Liu Chao <liuchao173@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

arch/loongarch/Kconfig

@@ -594,5 +594,11 @@ source "drivers/cpufreq/Kconfig"
 
 endmenu
 
+config ARCH_ENABLE_MEMORY_HOTPLUG
+	def_bool y
+
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+	def_bool y
+
 source "drivers/firmware/Kconfig"
 source "arch/loongarch/kvm/Kconfig"

arch/loongarch/configs/loongson3_defconfig

@@ -45,6 +45,7 @@ CONFIG_ACPI_SPCR_TABLE=y
 CONFIG_ACPI_DOCK=y
 CONFIG_ACPI_IPMI=m
 CONFIG_ACPI_PCI_SLOT=y
+CONFIG_ACPI_HOTPLUG_MEMORY=y
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
@@ -66,6 +67,9 @@ CONFIG_PARTITION_ADVANCED=y
 CONFIG_IOSCHED_BFQ=y
 CONFIG_BFQ_GROUP_IOSCHED=y
 CONFIG_BINFMT_MISC=m
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y
+CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_ZPOOL=y
@@ -570,9 +574,9 @@ CONFIG_NET_9P_VIRTIO=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_HOTPLUG_PCI_PCIE=y
 CONFIG_PCIEAER=y
-# CONFIG_PCIEASPM is not set
 CONFIG_PCI_IOV=y
 CONFIG_HOTPLUG_PCI=y
+CONFIG_HOTPLUG_PCI_ACPI=y
 CONFIG_HOTPLUG_PCI_SHPC=y
 CONFIG_PCCARD=m
 CONFIG_YENTA=m

arch/loongarch/mm/init.c

@@ -143,7 +143,7 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
 
 #ifdef CONFIG_MEMORY_HOTREMOVE
-void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
+void arch_remove_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap)
 {
 	unsigned long start_pfn = start >> PAGE_SHIFT;
 	unsigned long nr_pages = size >> PAGE_SHIFT;