88 lines
8.0 KiB
XML
88 lines
8.0 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<svg xmlns="http://www.w3.org/2000/svg" width="870" height="542" viewBox="0 0 870 542" role="img" aria-labelledby="diagram-title diagram-description">
|
|
<title id="diagram-title">balloon target 은 VM Boundary 를 건너 driver 에 닿고 확보한 page 는 같은 경계를 되건너 온다</title>
|
|
<desc id="diagram-description">참여자는 왼쪽부터 Guest kernel 의 virtio-balloon Driver, virtqueue, QEMU virtio-balloon Device, Host Memory Management 네 개다. 메시지는 위에서 아래로 읽는다. 1번은 Host Memory Management 가 QEMU 쪽 device 에 balloon target 조정을 보내는 것이고, 2번에서 그 요청이 virtqueue 로 내려가면서 VM Boundary 를 넘고, 3번에서 Guest kernel 의 driver 에 balloon target 이 닿는다. 여기서 방향이 바뀐다. 4번에서 driver 가 확보한 Guest page 를 virtqueue 에 올리고, 5번에서 그것이 다시 VM Boundary 를 넘어 QEMU 쪽 device 로 가고, 6번에서 device 가 Host Memory Management 에 회수 가능 backing 으로 넘긴다. target 을 올릴 때와 내릴 때 Guest 가 쓸 수 있는 memory 가 어느 쪽으로 움직이는지는 본문의 표가 맡는다.</desc>
|
|
<metadata>{"techviz":{"spec_version":"1.1","id":"virtio-balloon-inflate-deflate","profile":"sequence"},"source_context":{"document":"docs/virtualization/final/document.md","document_sha256":"181e2b3cc8a45bae81e7e8193d026937c4d586ae4495d3b2c323eb7e6abcfadd","anchor":{"kind":"heading","value":"65. virtio-balloon 구조","line":3008}},"evidence_policy":"Each factual element cites source lines or is marked assumption.","diagram_only":true}</metadata>
|
|
<defs>
|
|
<marker id="arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
|
|
<path d="M 0 0 L 10 5 L 0 10 z" />
|
|
</marker>
|
|
<style>
|
|
:root { color-scheme: light; }
|
|
text { font-family: Inter, Pretendard, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: #111827; }
|
|
.canvas { fill: #ffffff; }
|
|
.group-box { fill: #ffffff; stroke: #9ca3af; stroke-width: 1.4; stroke-dasharray: 7 5; }
|
|
.group-label-bg { fill: #ffffff; }
|
|
.group-label { font-size: 13px; font-weight: 650; fill: #374151; }
|
|
.edge { fill: none; stroke: #374151; stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; marker-end: url(#arrow); }
|
|
.edge.style-dashed, .edge.semantic-dashed, .edge.assumption { stroke-dasharray: 7 5; }
|
|
.edge.style-dotted { stroke-dasharray: 2 5; }
|
|
.edge.emphasis-primary { stroke: #2563eb; stroke-width: 2.2; }
|
|
.edge.emphasis-muted { stroke: #9ca3af; }
|
|
.edge.emphasis-warning, .edge.kind-failure, .edge.kind-error { stroke: #dc2626; stroke-width: 2.2; }
|
|
.edge-label-bg { fill: #ffffff; }
|
|
.edge-label { font-size: 12px; font-weight: 560; text-anchor: middle; }
|
|
.node-shape { fill: #ffffff; stroke: #4b5563; stroke-width: 1.7; }
|
|
.node-shape.emphasis-primary { stroke: #2563eb; stroke-width: 2.2; }
|
|
.node-shape.emphasis-muted { stroke: #9ca3af; fill: #f9fafb; }
|
|
.node-shape.emphasis-warning { stroke: #d97706; stroke-width: 2; fill: #fffdf5; }
|
|
.node-shape.kind-database, .node-shape.kind-datastore, .node-shape.kind-storage { fill: #f8fafc; }
|
|
.node-shape.kind-queue, .node-shape.kind-event, .node-shape.kind-topic { fill: #fafafa; }
|
|
.node-shape.assumption { stroke-dasharray: 4 4; }
|
|
.storage-bottom, .controller-divider { fill: none; stroke: #4b5563; stroke-width: 1.4; }
|
|
.controller-led { fill: #4b5563; }
|
|
.actor-symbol { fill: none; stroke: #4b5563; stroke-width: 1.8; stroke-linecap: round; }
|
|
.actor-symbol.emphasis-primary { stroke: #2563eb; stroke-width: 2.2; }
|
|
.node-label { font-size: 14px; font-weight: 650; text-anchor: middle; }
|
|
.node-role { font-size: 10px; letter-spacing: 0.04em; text-anchor: middle; fill: #6b7280; }
|
|
.node-detail-divider { stroke: #d1d5db; stroke-width: 1; }
|
|
.node-detail { font-size: 11px; fill: #374151; }
|
|
.assumption-badge { font-size: 9px; font-weight: 700; fill: #92400e; }
|
|
.failure-mark { stroke: #dc2626; stroke-width: 4; stroke-linecap: round; }
|
|
.lifeline { stroke: #9ca3af; stroke-width: 1.2; stroke-dasharray: 5 5; }
|
|
.timeline-axis { stroke: #374151; stroke-width: 1.8; marker-end: url(#arrow); }
|
|
.timeline-stem { stroke: #6b7280; stroke-width: 1.3; }
|
|
.timeline-marker { fill: #ffffff; stroke: #374151; stroke-width: 1.7; }
|
|
.timeline-marker.primary { fill: #2563eb; stroke: #2563eb; }
|
|
.timeline-marker.warning { fill: #dc2626; stroke: #dc2626; }
|
|
.timeline-label { font-size: 13px; font-weight: 650; text-anchor: middle; }
|
|
.timeline-detail { font-size: 11px; fill: #4b5563; text-anchor: middle; }
|
|
</style>
|
|
</defs>
|
|
<rect class="canvas" width="870" height="542" />
|
|
<rect class="node-shape kind-driver emphasis-primary role-participant" data-evidence="3013-3015,3046-3046" x="45.0" y="35.0" width="181.0" height="71.0" rx="7" />
|
|
<text class="node-label" x="135.5" y="62.0">virtio-balloon Driver</text>
|
|
<line class="node-detail-divider" x1="59.0" y1="83.0" x2="212.0" y2="83.0" />
|
|
<text class="node-detail" x="61.0" y="100.0">Guest Kernel</text>
|
|
<line class="lifeline" x1="135.5" y1="106.0" x2="135.5" y2="512.0" />
|
|
<rect class="node-shape kind-queue emphasis-normal role-participant" data-evidence="3017-3017" x="255.0" y="35.0" width="150.0" height="64.0" rx="7" />
|
|
<text class="node-label" x="330.0" y="65.0">virtqueue</text>
|
|
<line class="lifeline" x1="330.0" y1="99.0" x2="330.0" y2="512.0" />
|
|
<rect class="node-shape kind-service emphasis-normal role-participant" data-evidence="3022-3022,3037-3041" x="465.0" y="35.0" width="167.0" height="74.0" rx="7" />
|
|
<text class="node-label" x="548.5" y="62.0">QEMU virtio-balloon</text>
|
|
<text class="node-label" x="548.5" y="80.0">Device</text>
|
|
<line class="lifeline" x1="548.5" y1="109.0" x2="548.5" y2="512.0" />
|
|
<rect class="node-shape kind-service emphasis-normal role-participant" data-evidence="3025-3025,3034-3037" x="675.0" y="35.0" width="150.0" height="74.0" rx="7" />
|
|
<text class="node-label" x="750.0" y="62.0">Host Memory</text>
|
|
<text class="node-label" x="750.0" y="80.0">Management</text>
|
|
<line class="lifeline" x1="750.0" y1="109.0" x2="750.0" y2="512.0" />
|
|
<polyline class="edge kind-control style-solid emphasis-normal" points="750.0,140.0 548.5,140.0" data-evidence="3034-3041" />
|
|
<rect class="edge-label-bg" x="573.2" y="114.0" width="152.0" height="22" rx="3" />
|
|
<text class="edge-label" x="649.2" y="129.0">1. Balloon target 조정</text>
|
|
<polyline class="edge kind-control style-solid emphasis-normal" points="548.5,202.0 330.0,202.0" data-evidence="3017-3022,3041-3046" />
|
|
<rect class="edge-label-bg" x="383.4" y="176.0" width="111.8" height="22" rx="3" />
|
|
<text class="edge-label" x="439.2" y="191.0">2. VM Boundary</text>
|
|
<polyline class="edge kind-control style-solid emphasis-normal" points="330.0,264.0 135.5,264.0" data-evidence="3013-3017,3043-3046" />
|
|
<rect class="edge-label-bg" x="166.8" y="238.0" width="131.9" height="22" rx="3" />
|
|
<text class="edge-label" x="232.8" y="253.0">3. Balloon target</text>
|
|
<polyline class="edge kind-data style-solid emphasis-normal" points="135.5,326.0 330.0,326.0" data-evidence="3046-3050" />
|
|
<rect class="edge-label-bg" x="166.8" y="300.0" width="131.9" height="22" rx="3" />
|
|
<text class="edge-label" x="232.8" y="315.0">4. Guest pages 확보</text>
|
|
<polyline class="edge kind-data style-solid emphasis-normal" points="330.0,388.0 548.5,388.0" data-evidence="3017-3025" />
|
|
<rect class="edge-label-bg" x="383.4" y="362.0" width="111.8" height="22" rx="3" />
|
|
<text class="edge-label" x="439.2" y="377.0">5. VM Boundary</text>
|
|
<polyline class="edge kind-data style-solid emphasis-normal" points="548.5,450.0 750.0,450.0" data-evidence="3022-3028,3077-3079" />
|
|
<rect class="edge-label-bg" x="586.6" y="424.0" width="125.2" height="22" rx="3" />
|
|
<text class="edge-label" x="649.2" y="439.0">6. 회수 가능 backing</text>
|
|
</svg>
|