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3f9dfbebdc
Instead of using arch_has_restricted_virtio_memory_access() together with CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS, replace those with platform_has() and a new platform feature PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Borislav Petkov <bp@suse.de>
19 lines
596 B
C
19 lines
596 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PLATFORM_FEATURE_H
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#define _PLATFORM_FEATURE_H
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#include <linux/bitops.h>
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#include <asm/platform-feature.h>
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/* The platform features are starting with the architecture specific ones. */
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/* Used to enable platform specific DMA handling for virtio devices. */
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#define PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS (0 + PLATFORM_ARCH_FEAT_N)
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#define PLATFORM_FEAT_N (1 + PLATFORM_ARCH_FEAT_N)
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void platform_set(unsigned int feature);
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void platform_clear(unsigned int feature);
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bool platform_has(unsigned int feature);
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#endif /* _PLATFORM_FEATURE_H */
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