{"id":263,"date":"2025-01-04T21:01:28","date_gmt":"2025-01-04T13:01:28","guid":{"rendered":"https:\/\/www.yewpo.top\/?p=263"},"modified":"2025-01-04T21:01:28","modified_gmt":"2025-01-04T13:01:28","slug":"coconut-svsm-%e5%8d%8f%e8%ae%ae%e8%af%b7%e6%b1%82%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.yewpo.top\/index.php\/263\/","title":{"rendered":"COCONUT-SVSM \u534f\u8bae\u8bf7\u6c42\u5904\u7406"},"content":{"rendered":"<blockquote>\n<p>\u7ee7\u4e0a\u4e00\u7bc7 <a href=\"http:\/\/aly.yewpo.top\/250\/\">COCONUT-SVSM \u4ee3\u7801\u521d\u6b21\u9605\u8bfb<\/a>\uff0c\u8fd9\u6b21\u6765\u8bb2\u8bb2 COCONUT-SVSM \u5b9e\u73b0\u7684\u76f8\u5173\u534f\u8bae\uff0c\u4ee5\u53ca\u662f\u600e\u4e48\u5904\u7406\u8fd9\u4e9b\u534f\u8bae\u8bf7\u6c42\u7684\u3002<\/p>\n<p>\u9605\u8bfb\u8be5\u6587\u7ae0\u4e4b\u524d\uff0c\u9700\u8981\u5bf9 SEV-SNP \u4ee5\u53ca SVSM \u6709\u4e00\u5b9a\u4e86\u89e3\uff1a<\/p>\n<ul>\n<li>\n<p>SEV-SNP\uff1a<a href=\"https:\/\/www.amd.com\/content\/dam\/amd\/en\/documents\/epyc-business-docs\/white-papers\/SEV-SNP-strengthening-vm-isolation-with-integrity-protection-and-more.pdf\">https:\/\/www.amd.com\/content\/dam\/amd\/en\/documents\/epyc-business-docs\/white-papers\/SEV-SNP-strengthening-vm-isolation-with-integrity-protection-and-more.pdf<\/a><\/p>\n<\/li>\n<li>\n<p>SVSM\uff1a<a href=\"https:\/\/www.amd.com\/content\/dam\/amd\/en\/documents\/epyc-technical-docs\/specifications\/58019.pdf\">https:\/\/www.amd.com\/content\/dam\/amd\/en\/documents\/epyc-technical-docs\/specifications\/58019.pdf<\/a><\/p>\n<\/li>\n<\/ul>\n<\/blockquote>\n<blockquote>\n<p>COCONUT-SVSM \u7684\u5f00\u53d1\u8ba1\u5212\u662f\u8981\u652f\u6301 AMD \u7684 SEV-SNP\u3001Intel \u7684 TDX \u4ee5\u53ca Arm \u7684 CCA\u3002\u4f46\u4ece\u76ee\u524d\u7684\u8ba1\u5212\u8868\u6765\u770b\uff0cIntel \u7684 TDX \u5df2\u7ecf\u63d0\u4e0a\u65e5\u7a0b\u4e86\uff1b\u4f46\u662f Arm CCA \u8fd8\u6ca1\u770b\u5230\u76f8\u5173\u8ba1\u5212\u3002<\/p>\n<p>COCONUT-SVSM \u8ba1\u5212\u5b9e\u73b0\u4e09\u79cd\u6267\u884c\u6a21\u5f0f\uff1a<\/p>\n<ul>\n<li>\n<p>\u8f7b\u91cf\u64cd\u4f5c\u7cfb\u7edf\u6a21\u5f0f (Enlight OS Mode)\uff0c\u4ec5\u63d0\u4f9b Hypervisor \u4e0d\u80fd\u63d0\u4f9b\u7684\u8bbe\u5907\u6a21\u62df\u670d\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p>Paravisor \u6a21\u5f0f\uff0c\u63a5\u7ba1 VE\/VC \u5f02\u5e38\u4ee5\u53ca\u7ba1\u7406\u79c1\u6709\u548c\u5171\u4eab\u5185\u5b58\u3002\uff08<strong>\u5e94\u8be5\u8fd8\u5728\u65e5\u7a0b\u4e2d\uff0c\u6ca1\u5b9e\u73b0<\/strong>\uff09<\/p>\n<\/li>\n<li>\n<p>\u670d\u52a1\u865a\u62df\u673a\u6a21\u5f0f\uff0cSVSM \u5c31\u662f\u64cd\u4f5c\u7cfb\u7edf\uff0cHypervisor \u53ea\u662f\u4e00\u4e2a\u4ea4\u4e92\u901a\u9053\uff0c\u5411\u53e6\u4e00\u4e2a CVM \u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<\/li>\n<\/ul>\n<\/blockquote>\n<h2 class=\"atx\" id=\"1-\u5ba2\u6237\u64cd\u4f5c\u7cfb\u7edf\u7684\u542f\u52a8\">1 \u5ba2\u6237\u64cd\u4f5c\u7cfb\u7edf\u7684\u542f\u52a8<\/h2>\n<p>\u7ee7\u7eed\u4e0a\u4e00\u7bc7\uff0c<code>startup_64<\/code> \u6267\u884c\u5b8c\u6210\u540e\uff0c\u4f1a\u8df3\u8f6c\u5230 <code>svsm_start()<\/code> \u51fd\u6570\uff0c\u8be5\u51fd\u6570\u4e5f\u5728 <code>linux\/src\/svsm.rs<\/code> \u4ee3\u7801\u4e2d\u5b9e\u73b0\u3002\u51fd\u6570\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u4e00\u4e2a KernelLaunchInfo \u548c vb_addr\u3002\u51fd\u6570\u6267\u884c\u4e00\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<ol>\n<li>\n<p>\u5bf9 GDT \u548c IDT \u8fdb\u884c\u521d\u59cb\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6790 KernelLaunchInfo \u53c2\u6570\uff0c\u5bf9\u5168\u5c40\u53d8\u91cf LAUNCH \u8fdb\u884c\u521d\u59cb\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>\u5206\u914d\u5b89\u5168\u9875\u9762\u548c\u4e00\u4e9b\u7cfb\u7edf\u5bc4\u5b58\u5668\u5982 cr0 \u548c cr4 \u7684\u521d\u59cb\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>\u521d\u59cb\u5316\u7ec8\u7aef\u548c\u76f8\u5e94\u7684\u73af\u5883\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece KernelLaunchInfo \u4e2d\u89e3\u6790\u5185\u6838\u53ef\u94fe\u63a5\u6267\u884c\u6587\u4ef6\u7684\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u521d\u59cb\u5316\u5206\u9875\uff0c\u5e76\u4e3a\u6bcf\u4e2a CPU \u8bbe\u7f6e\u9875\u8868\u548c\u5e73\u53f0\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u6587\u4ef6\u7cfb\u7edf\u521d\u59cb\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>\u8bbe\u7f6e\u6bcf\u4e2a CPU \u8d77\u59cb\u5165\u53e3\u4e3a <code>svsm_main()<\/code> \u51fd\u6570\uff0c\u5e76\u8bbe\u7f6e\u8c03\u8bd5\u63a5\u53e3\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5f53\u6bcf\u4e2a CPU \u542f\u52a8\u4e4b\u540e\uff0c\u90fd\u4f1a\u8fdb\u5165\u5230 <code>svsm_main()<\/code> \u51fd\u6570\u4e2d\uff0c\u8be5\u51fd\u6570\u5728 <code>linux\/src\/svsm.rs<\/code> \u4ee3\u7801\u4e2d\u5b9e\u73b0\u3002\u51fd\u6570\u6267\u884c\u7684\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>\u8bbe\u7f6e SVSM_PLATFORM \u7684\u76f8\u5173\u73af\u5883\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece LAUNCH \u4e2d\u8bfb\u53d6\u542f\u52a8\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u8bbe\u7f6e IGVM\u3002<\/p>\n<\/li>\n<li>\n<p>\u5185\u5b58\u6620\u5c04\u548c\u5185\u6838\u6587\u4ef6\u7cfb\u7edf\u7684\u89e3\u5305\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece\u914d\u7f6e\u4e2d\u83b7\u53d6 CPU \u7684\u76f8\u5173\u4fe1\u606f\u4ee5\u53ca\u4e2a\u6570\uff0c\u542f\u52a8\u5168\u90e8 CPU\u3002<\/p>\n<\/li>\n<li>\n<p>\u51c6\u5907\u56fa\u4ef6\u548c vTPM\uff0c\u7136\u540e\u542f\u52a8\u56fa\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>\u521b\u5efa\u548c\u542f\u52a8\u5185\u6838\u4efb\u52a1\uff0c\u5373 <code>request_processing_main()<\/code> \u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u975e\u5e38\u7684\u5173\u952e\u3002<\/p>\n<\/li>\n<li>\n<p>\u542f\u52a8\u548c\u52a0\u8f7d\u7528\u6237\u4efb\u52a1 <code>\/init<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fdb\u5165\u5230 <code>request_loop()<\/code> \u51fd\u6570\u4e2d\u3002<\/p>\n<\/li>\n<\/ol>\n<h2 class=\"atx\" id=\"2-\u8bf7\u6c42\u5904\u7406\u51fd\u6570\">2 \u8bf7\u6c42\u5904\u7406\u51fd\u6570<\/h2>\n<p><code>request_processing_main()<\/code> \u51fd\u6570\u7528\u4e8e\u5904\u7406\u548c\u5206\u53d1\u8bf7\u6c42\u7684\uff0c\u5728 <code>linux\/src\/requests.rs<\/code> \u4e2d\u5b9e\u73b0\u3002\u51fd\u6570\u8fdb\u5165\u540e\uff0c\u5c31\u662f\u4e00\u4e2a\u6b7b\u5faa\u73af\u3002\u5faa\u73af\u4e2d\u7b2c\u4e00\u4e2a\u8c03\u7528\u7684\u51fd\u6570\u5c31\u662f <code>wait_for_requests()<\/code>\uff0c\u8be5\u51fd\u6570\u5c06\u5f53\u524d\u4efb\u52a1\u52a0\u5165\u5230\u7b49\u5f85\u4efb\u52a1\u961f\u5217 (waitqueue) \u4e2d\uff0c\u5e76\u8fdb\u884c\u8c03\u5ea6\u3002<strong>\u8fd9\u5c31\u89e3\u91ca\u4e86\u5728 <span class=\"katex\"><span class=\"katex-mathml\"><\/span><span aria-hidden=\"true\" class=\"katex-html\"><span class=\"base\"><span style=\"height:0.8889em;vertical-align:-0.1944em;\" class=\"strut\"><\/span><span class=\"mord\">\u00b61<\/span><\/span><\/span><\/span> \u4e2d\u63d0\u5230\u7684\u7b2c7\u6b65\u521b\u5efa\u548c\u542f\u52a8\u5185\u6838\u4efb\u52a1\u540e\u8fd8\u80fd\u56de\u5230\u5f53\u524d\u6267\u884c\u6d41\u7684\u539f\u56e0<\/strong>\u3002<\/p>\n<p>\u5f53\u6709\u8bf7\u6c42\u56de\u5230\u5f53\u524d\u5185\u6838\u4efb\u52a1\u7684\u4e0a\u4e0b\u6587\u540e\uff0c\u5c31\u4f1a\u6267\u884c\u6b7b\u5faa\u73af\u7684\u5185\u5bb9\u3002\u9996\u5148\uff0c\u4ece RAX \u5bc4\u5b58\u5668\u4e2d\u8bfb\u53d6\u8bf7\u6c42\u7684\u529f\u80fd\u5bf9\u8c61\u7f16\u53f7\uff0c\u4ee5\u53ca\u4ece VMSA \u4e2d\u8bfb\u53d6\u8bf7\u6c42\u7684\u53c2\u6570\u3002\u7136\u540e\u8c03\u7528 <code>request_loop_once()<\/code> \u51fd\u6570\uff0c\u5904\u7406\u8be5\u8bf7\u6c42\u3002<\/p>\n<p>\u6839\u636e <code>request_loop_once()<\/code> \u5904\u7406\u51fd\u6570\u7684\u8fd4\u56de\u7ed3\u679c\uff0c\u8bbe\u7f6e RAX \u7684\u503c\uff0c\u5c06\u8bf7\u6c42\u7684\u76f8\u5173\u7ed3\u679c\u5b58\u50a8\u5230 VMSA \u4e2d\uff0c\u56de\u5230\u6b7b\u5faa\u73af\u7684\u5f00\u59cb\u4f4d\u7f6e\u3002<\/p>\n<h2 class=\"atx\" id=\"3-\u8bf7\u6c42\u5faa\u73af\u51fd\u6570\">3 \u8bf7\u6c42\u5faa\u73af\u51fd\u6570<\/h2>\n<p><code>request_loop()<\/code> \u51fd\u6570\u5728 <code>linux\/src\/requests.rs<\/code> \u4ee3\u7801\u4e2d\u5b9e\u73b0\u3002\u5176\u5b9e\uff0c\u8fd9\u4e2a\u51fd\u6570\u66f4\u50cf\u662f VMPL \u7684\u542f\u52a8\u548c\u6062\u590d\u5904\u7406\u51fd\u6570\u3002<\/p>\n<p>\u51fd\u6570\u672c\u8eab\u4e5f\u662f\u4e00\u4e2a\u6b7b\u5faa\u73af\u3002\u6309\u7167\u6ce8\u91ca\u7684\u63cf\u8ff0\uff0c\u6bcf\u6b21\u5faa\u73af\u90fd\u662f\u68c0\u67e5\u662f\u5426\u6709\u5ba2\u6237\u673a\u662f\u53ef\u8fd0\u884c\u7684\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5c31\u6682\u505c\u5e76\u7b49\u5f85\u53ef\u4ee5\u6267\u884c\u7684\u5ba2\u6237\u673a\uff08\u8be5\u8fc7\u7a0b\u7531 Hypervisor \u8fdb\u884c\u8c03\u5ea6\uff09\u3002\u5982\u679c\u6709\u53ef\u4ee5\u8fd0\u884c\u7684\u5ba2\u6237\u673a\uff0c\u5219\u5c06\u8be5\u5ba2\u6237\u673a\u7684 VMSA \u8bbe\u7f6e\u6210\u6fc0\u6d3b\u72b6\u6001\uff0c\u5e76\u8fdb\u884c VMPL \u5207\u6362\u3002<\/p>\n<p><img decoding=\"async\" alt=\"image-20250104202715571\" src=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20250104202715571.png\"><\/p>\n<p>\u5ba2\u6237\u673a\u6267\u884c\u65f6\u5982\u679c\u9700\u8981\u5f02\u5e38\uff0c\u4f1a\u5148\u9000\u56de\u5230 Hypervisor\uff0c\u7531 Hypervisor \u4ea4\u7ed9 VMPL0 \u5904\u7406\uff0c\u5373 SVSM\u3002SVSM \u6062\u590d\u4e86\u8fdb\u5165 VMPL \u65f6\u7684\u4e0a\u4e0b\u6587\u3002\u8bfb\u53bb GUEST_VMPL \u7684 CPU \u7684 RAX \u7684\u503c\uff0c\u83b7\u53d6\u8bf7\u6c42\u76f8\u5173\u4fe1\u606f\u3002\u901a\u8fc7 <code>check_requests()<\/code> \u51fd\u6570\u68c0\u67e5\u8bf7\u6c42\u7684\u5408\u6cd5\u6027\u3002\u5982\u679c\u5408\u6cd5\uff0c\u8c03\u7528 <code>process_requests()<\/code> \u51fd\u6570\u5904\u7406\u3002<\/p>\n<pre><code class=\"fenced-code-block language-rust\"><span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">wait_for_requests<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">let<\/span> current_task <span class=\"token operator\">=<\/span> <span class=\"token function\">current_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">this_cpu<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n        <span class=\"token punctuation\">.<\/span>request_waitqueue\n        <span class=\"token punctuation\">.<\/span><span class=\"token function\">borrow_mut<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n        <span class=\"token punctuation\">.<\/span><span class=\"token function\">wait_for_event<\/span><span class=\"token punctuation\">(<\/span>current_task<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">schedule<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n\n<span class=\"token keyword\">pub<\/span> <span class=\"token keyword\">fn<\/span> <span class=\"token function-definition function\">process_requests<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">let<\/span> maybe_task <span class=\"token operator\">=<\/span> <span class=\"token function\">this_cpu<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>request_waitqueue<span class=\"token punctuation\">.<\/span><span class=\"token function\">borrow_mut<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">wakeup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">let<\/span> <span class=\"token class-name\">Some<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span> maybe_task <span class=\"token punctuation\">{<\/span>\n        <span class=\"token function\">schedule_task<\/span><span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<p><code>process_requests()<\/code> \u51fd\u6570\u5728 <code>linux\/src\/cpu\/percpu.rs<\/code> \u4e2d\u5b9e\u73b0\uff0c\u4ee3\u7801\u5982\u4e0a\u3002\u4ece waitqueue \u4e2d\u53d6\u51fa\u4e4b\u524d\u653e\u5165\u7684\u5185\u6838\u4efb\u52a1\uff0c\u5e76\u8c03\u5ea6\uff0c\u4ece\u800c\u53c8\u56de\u5230 <span class=\"katex\"><span class=\"katex-mathml\"><\/span><span aria-hidden=\"true\" class=\"katex-html\"><span class=\"base\"><span style=\"height:0.8889em;vertical-align:-0.1944em;\" class=\"strut\"><\/span><span class=\"mord\">\u00b62<\/span><\/span><\/span><\/span> \u63d0\u5230\u7684 <code>wait_for_requests()<\/code> \u7684\u4f4d\u7f6e\u3002<\/p>\n<h2 class=\"atx\" id=\"4-\u8bf7\u6c42\u5904\u7406\">4 \u8bf7\u6c42\u5904\u7406<\/h2>\n<p><code>request_loop_once()<\/code> \u51fd\u6570\u5728 <code>linux\/src\/requests.rs<\/code> \u4e2d\u5b9e\u73b0\u3002\u51fd\u6570\u5148\u68c0\u67e5\u4e86\u5ba2\u6237\u673a\u7684\u9000\u51fa\u7801\u662f\u5426\u662f VMGEXIT\uff0c\u5982\u679c\u662f\uff0c\u5728\u6839\u636e\u8bf7\u6c42\u7684\u534f\u8bae\u7c7b\u578b\u8fdb\u884c\u5206\u53d1\u3002COCONUT-SVSM \u5df2\u7ecf\u5b9e\u73b0\u4e86 SVSM \u767d\u76ae\u4e66\u4e2d\u63d0\u5230\u7684\u4e09\u4e2a\u534f\u8bae\uff1a<\/p>\n<ul>\n<li>\n<p>\u6838\u5fc3 (core) \u534f\u8bae\uff1a\u4ea4\u7ed9 <code>core_protocol_request()<\/code> \u51fd\u6570\u5904\u7406\u3002<\/p>\n<\/li>\n<li>\n<p>vTPM \u534f\u8bae\uff1a\u4ea4\u7ed9 <code>vtpm_protocol_request()<\/code> \u51fd\u6570\u5904\u7406\u3002<\/p>\n<\/li>\n<li>\n<p>APIC \u534f\u8bae\uff1a\u4ea4\u7ed9 <code>apic_protocol_request()<\/code> \u51fd\u6570\u5904\u7406\u3002<\/p>\n<\/li>\n<li>\n<p>\u5176\u4ed6\u90fd\u662f\u4e0d\u652f\u6301\u7684\u534f\u8bae\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"atx\" id=\"41-\u6838\u5fc3\u534f\u8bae\">4.1 \u6838\u5fc3\u534f\u8bae<\/h3>\n<p><code>core_protocol_request()<\/code> \u51fd\u6570\u5728 <code>linux\/src\/procotol\/core.rs<\/code> \u4e2d\u5b9e\u73b0\u3002\u5bf9\u6838\u5fc3\u534f\u8bae\u7531\u8fdb\u884c\u4e86\u4e00\u6b21\u5206\u53d1\uff1a<\/p>\n<pre><code class=\"fenced-code-block language-rust\"><span class=\"token keyword\">match<\/span> request <span class=\"token punctuation\">{<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_REMAP_CA<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_remap_ca<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_PVALIDATE<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_pvalidate<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_CREATE_VCPU<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_create_vcpu<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_DELETE_VCPU<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_delete_vcpu<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_DEPOSIT_MEM<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_deposit_mem<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_WITHDRAW_MEM<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_withdraw_mem<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_QUERY_PROTOCOL<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_query_protocol<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_CORE_CONFIGURE_VTOM<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">core_configure_vtom<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    _ <span class=\"token operator\">=&gt;<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SvsmReqError<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">unsupported_call<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<h3 class=\"atx\" id=\"42-vtpm-\u534f\u8bae\">4.2 vTPM \u534f\u8bae<\/h3>\n<p><code>vtpm_protocol_request()<\/code> \u51fd\u6570\u5728 <code>linux\/src\/procotol\/vtpm.rs<\/code> \u4e2d\u5b9e\u73b0\u3002\u5bf9 vTPM \u534f\u8bae\u7531\u8fdb\u884c\u4e86\u4e00\u6b21\u5206\u53d1\uff1a<\/p>\n<pre><code class=\"fenced-code-block language-rust\"><span class=\"token keyword\">match<\/span> request <span class=\"token punctuation\">{<\/span>\n    <span class=\"token constant\">SVSM_VTPM_QUERY<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">vtpm_query_request<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_VTPM_COMMAND<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">vtpm_command_request<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    _ <span class=\"token operator\">=&gt;<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SvsmReqError<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">unsupported_call<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<h3 class=\"atx\" id=\"43-apic-\u534f\u8bae\">4.3 APIC \u534f\u8bae<\/h3>\n<p><code>apic_protocol_request()<\/code> \u51fd\u6570\u5728 <code>linux\/src\/procotol\/apic.rs<\/code> \u4e2d\u5b9e\u73b0\u3002\u51fd\u6570\u5f00\u59cb\u4f1a\u68c0\u67e5\u662f\u5426\u4f7f\u7528 APIC \u7684\u6a21\u62df\uff0c\u5982\u679c\u4e0d\u662f\uff0c\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\uff1b\u5982\u679c\u662f\uff0c\u5bf9 APIC \u534f\u8bae\u7531\u8fdb\u884c\u4e86\u4e00\u6b21\u5206\u53d1\uff1a<\/p>\n<pre><code class=\"fenced-code-block language-rust\"><span class=\"token keyword\">match<\/span> request <span class=\"token punctuation\">{<\/span>\n    <span class=\"token constant\">SVSM_REQ_APIC_QUERY_FEATURES<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">apic_query_features<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_APIC_CONFIGURE<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">apic_configure<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_APIC_READ_REGISTER<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">apic_read_register<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_APIC_WRITE_REGISTER<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">apic_write_register<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token constant\">SVSM_REQ_APIC_CONFIGURE_VECTOR<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token function\">apic_configure_vector<\/span><span class=\"token punctuation\">(<\/span>params<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n\n    _ <span class=\"token operator\">=&gt;<\/span> <span class=\"token class-name\">Err<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SvsmReqError<\/span><span class=\"token punctuation\">::<\/span><span class=\"token function\">unsupported_call<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<hr>\n<p>\u5404\u4e2a\u534f\u8bae\u7684\u5b9e\u73b0\u8bf7\u770b\u540e\u7eed\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd\u4e00\u4e0b COCONUT-SVSM \u5bf9\u4e8e\u534f\u8bae\u5904\u7406\u8bf7\u6c42\u662f\u600e\u4e48\u5904\u7406\u548c\u8f6c\u53d1\u7684\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[12],"class_list":["post-263","post","type-post","status-publish","format-standard","hentry","category-os","tag-svsm"],"_links":{"self":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts\/263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/comments?post=263"}],"version-history":[{"count":0,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts\/263\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/media?parent=263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/categories?post=263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/tags?post=263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}