X86_MSI_BASE_ADDRESS_LOW
msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW;
msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW;
msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW;
msg->arch_addr_lo.dmar_base_address = X86_MSI_BASE_ADDRESS_LOW;
msg->arch_addr_lo.base_address = X86_MSI_BASE_ADDRESS_LOW;