Re: [PATCH 2/7] svm: Run tests with NPT enabled if available

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 On 09/10/2010 06:34 PM, Joerg Roedel wrote:
This patch adds code to setup a nested page table which is
used for all tests.


+
+    printf("NPT detected - running all tests with NPT enabled\n");
+
+    /*
+     * Nested paging supported - Build a nested page table
+     * Build the page-table bottom-up and map everything with 2M pages
+     */
+
+    address = 0;
+
+    /* PTE level */

Conflicts with previous comment - these aren't 2M pages.

+    for (i = 0; i<  2048; ++i) {
+        page = alloc_page();
+
+        for (j = 0; j<  512; ++j, address += 4096)
+            page[j] = address | 0x067ULL;

{ }

  static void vmcb_set_seg(struct vmcb_seg *seg, u16 selector,
@@ -56,6 +110,11 @@ static void vmcb_ident(struct vmcb *vmcb)
      save->g_pat = rdmsr(MSR_IA32_CR_PAT);
      save->dbgctl = rdmsr(MSR_IA32_DEBUGCTLMSR);
      ctrl->intercept = (1ULL<<  INTERCEPT_VMRUN) | (1ULL<<  INTERCEPT_VMMCALL);
+
+    if (npt_supported()) {
+        ctrl->nested_ctl = 1;
+        ctrl->nested_cr3 = (u64)pml4e;
+    }
  }

  struct test {


--
error compiling committee.c: too many arguments to function

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