os::drivers::block::virtio_blk

Struct VirtioHal

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pub struct VirtioHal;

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impl Hal for VirtioHal

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fn dma_alloc(pages: usize) -> usize

Allocates the given number of contiguous physical pages of DMA memory for virtio use.
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fn dma_dealloc(pa: usize, pages: usize) -> i32

Deallocates the given contiguous physical DMA memory pages.
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fn phys_to_virt(addr: usize) -> usize

Converts a physical address used for virtio to a virtual address which the program can access.
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fn virt_to_phys(vaddr: usize) -> usize

Converts a virtual address which the program can access to the corresponding physical address to use for virtio.

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