From: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Date: Tue, 25 Aug 2009 16:43:38 +0000 (+0100)
Subject: update some cpuid comments and add a couple of values
X-Git-Url: http://xenbits.xen.org/gitweb?a=commitdiff_plain;h=7689cd2484d96e95317077a6a534c35a6ead66a9;p=xenclient%2Ftoolstack.git

update some cpuid comments and add a couple of values
---

diff --git a/libs/xc/xc_cpuid.h b/libs/xc/xc_cpuid.h
index df22a85..feba45a 100644
--- a/libs/xc/xc_cpuid.h
+++ b/libs/xc/xc_cpuid.h
@@ -114,12 +114,13 @@ static void do_hvm_cpuid_policy(int xc, int domid, uint32_t input, uint32_t regs
 		regs[0] &= 0x0000ffffu;
 		regs[1] = regs[2] = regs[3] = 0;
 		break;
-	case 0x00000002:
-	case 0x00000004:
-	case 0x80000002:
-	case 0x80000003:
-	case 0x80000004:
-	case 0x80000006:
+	case 0x00000002: /* Intel cache info (dumped by AMD policy) */
+	case 0x00000004: /* Intel cache info (dumped by AMD policy) */
+	case 0x80000002: /* Processor name string */
+	case 0x80000003: /* ... continued         */
+	case 0x80000004: /* ... continued         */
+	case 0x80000005: /* AMD L1 cache/TLB info (dumped by Intel policy) */
+	case 0x80000006: /* AMD L2/3 cache/TLB info ; Intel L2 cache features */
 		break;
 	default:
 		regs[0] = regs[1] = regs[2] = regs[3] = 0;
@@ -190,6 +191,11 @@ static void do_hvm_cpuid_policy(int xc, int domid, uint32_t input, uint32_t regs
 					(is_64bit ? bitmaskof(X86_FEATURE_SYSCALL) : 0));
 			break;
 			}
+		case 0x80000005:
+			{
+			regs[0] = regs[1] = regs[2] = 0;
+			break;
+			}
 		}
 	}
 }