[intel-tdx:guest-hardening-filter 14/16] drivers/virtio/virtio_mmio.c:578:13: error: implicit declaration of function 'cc_platform_has'

[kernel test robot]

tree:   https://github.com/intel/tdx.git guest-hardening-filter
head:   cadf5ac0e49f45fdd2a3828fa625e01ad5fb55e7
commit: 92e6731960eaf63df4626788d7d302941beaf3dd [14/16] virtio-mmio: Disable in TDX guest
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220708/202207080639.lSQmEaSK-lkp@xxxxxxxxx/config)
compiler: powerpc-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel/tdx/commit/92e6731960eaf63df4626788d7d302941beaf3dd
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest-hardening-filter
        git checkout 92e6731960eaf63df4626788d7d302941beaf3dd
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/virtio/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   drivers/virtio/virtio_mmio.c: In function 'virtio_mmio_probe':
>> drivers/virtio/virtio_mmio.c:578:13: error: implicit declaration of function 'cc_platform_has' [-Werror=implicit-function-declaration]
     578 |         if (cc_platform_has(CC_ATTR_GUEST_DEVICE_FILTER))
         |             ^~~~~~~~~~~~~~~
>> drivers/virtio/virtio_mmio.c:578:29: error: 'CC_ATTR_GUEST_DEVICE_FILTER' undeclared (first use in this function)
     578 |         if (cc_platform_has(CC_ATTR_GUEST_DEVICE_FILTER))
         |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/virtio/virtio_mmio.c:578:29: note: each undeclared identifier is reported only once for each function it appears in
   cc1: some warnings being treated as errors


vim +/cc_platform_has +578 drivers/virtio/virtio_mmio.c

   571	
   572	static int virtio_mmio_probe(struct platform_device *pdev)
   573	{
   574		struct virtio_mmio_device *vm_dev;
   575		unsigned long magic;
   576		int rc;
   577	
 > 578		if (cc_platform_has(CC_ATTR_GUEST_DEVICE_FILTER))
   579			return -ENODEV;
   580	
   581		vm_dev = devm_kzalloc(&pdev->dev, sizeof(*vm_dev), GFP_KERNEL);
   582		if (!vm_dev)
   583			return -ENOMEM;
   584	
   585		vm_dev->vdev.dev.parent = &pdev->dev;
   586		vm_dev->vdev.dev.release = virtio_mmio_release_dev;
   587		vm_dev->vdev.config = &virtio_mmio_config_ops;
   588		vm_dev->pdev = pdev;
   589		INIT_LIST_HEAD(&vm_dev->virtqueues);
   590		spin_lock_init(&vm_dev->lock);
   591	
   592		vm_dev->base = devm_platform_ioremap_resource(pdev, 0);
   593		if (IS_ERR(vm_dev->base))
   594			return PTR_ERR(vm_dev->base);
   595	
   596		/* Check magic value */
   597		magic = readl(vm_dev->base + VIRTIO_MMIO_MAGIC_VALUE);
   598		if (magic != ('v' | 'i' << 8 | 'r' << 16 | 't' << 24)) {
   599			dev_warn(&pdev->dev, "Wrong magic value 0x%08lx!\n", magic);
   600			return -ENODEV;
   601		}
   602	
   603		/* Check device version */
   604		vm_dev->version = readl(vm_dev->base + VIRTIO_MMIO_VERSION);
   605		if (vm_dev->version < 1 || vm_dev->version > 2) {
   606			dev_err(&pdev->dev, "Version %ld not supported!\n",
   607					vm_dev->version);
   608			return -ENXIO;
   609		}
   610	
   611		vm_dev->vdev.id.device = readl(vm_dev->base + VIRTIO_MMIO_DEVICE_ID);
   612		if (vm_dev->vdev.id.device == 0) {
   613			/*
   614			 * virtio-mmio device with an ID 0 is a (dummy) placeholder
   615			 * with no function. End probing now with no error reported.
   616			 */
   617			return -ENODEV;
   618		}
   619		vm_dev->vdev.id.vendor = readl(vm_dev->base + VIRTIO_MMIO_VENDOR_ID);
   620	
   621		if (vm_dev->version == 1) {
   622			writel(PAGE_SIZE, vm_dev->base + VIRTIO_MMIO_GUEST_PAGE_SIZE);
   623	
   624			rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
   625			/*
   626			 * In the legacy case, ensure our coherently-allocated virtio
   627			 * ring will be at an address expressable as a 32-bit PFN.
   628			 */
   629			if (!rc)
   630				dma_set_coherent_mask(&pdev->dev,
   631						      DMA_BIT_MASK(32 + PAGE_SHIFT));
   632		} else {
   633			rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
   634		}
   635		if (rc)
   636			rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
   637		if (rc)
   638			dev_warn(&pdev->dev, "Failed to enable 64-bit or 32-bit DMA.  Trying to continue, but this might not work.\n");
   639	
   640		platform_set_drvdata(pdev, vm_dev);
   641	
   642		rc = register_virtio_device(&vm_dev->vdev);
   643		if (rc)
   644			put_device(&vm_dev->vdev.dev);
   645	
   646		return rc;
   647	}
   648	

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