27 lines
597 B
Plaintext
27 lines
597 B
Plaintext
# virtqueue 뒤 QEMU block backend의 세 형태
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# Question: Guest /dev/vda 요청이 VM boundary를 넘은 뒤 QEMU에서 qcow2, RAW, Host block device 중 어느 backend로 이어지는가
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direction: right
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n0: "/dev/vda" {
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shape: cylinder
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}
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n1: "virtio-blk · virtqueue" {
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shape: rectangle
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}
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n2: "QEMU block backend" {
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shape: rectangle
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}
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n3: "qcow2 file" {
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shape: cylinder
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}
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n4: "RAW file" {
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shape: cylinder
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}
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n5: "Host block device" {
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shape: cylinder
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}
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n0 -> n1: "block I/O"
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n1 -> n2: "VM boundary"
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n2 -> n3: "qcow2 backend"
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n2 -> n4: "RAW backend"
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n2 -> n5: "block-device backend"
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