Changeset 4fb6bf36 in mainline for kernel/arch/amd64/src/amd64.c

Timestamp:

2008-01-11T17:49:35Z (16 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0ee4322

Parents:

eb27ce5a

Message:

move cpuid tests from amd64.c to boot.S

File:

• kernel/arch/amd64/src/amd64.c (modified) (2 diffs)

kernel/arch/amd64/src/amd64.c

@@ -104 +104 @@
 void arch_pre_mm_init(void)
 {
-        cpu_info_t cpuid_s;
-
-        cpuid(AMD_CPUID_EXTENDED,&cpuid_s);
-        if (! (cpuid_s.cpuid_edx & (1<<AMD_EXT_NOEXECUTE)))
-                panic("Processor does not support No-execute pages.\n");
-
-        cpuid(INTEL_CPUID_STANDARD,&cpuid_s);
-        if (! (cpuid_s.cpuid_edx & (1<<INTEL_FXSAVE)))
-                panic("Processor does not support FXSAVE/FXRESTORE.\n");
-        
-        if (! (cpuid_s.cpuid_edx & (1<<INTEL_SSE2)))
-                panic("Processor does not support SSE2 instructions.\n");
-
-        /* Enable No-execute pages */
+        /* Enable no-execute pages */
         set_efer_flag(AMD_NXE_FLAG);
         /* Enable FPU */
@@ -124 +111 @@
         /* Initialize segmentation */
         pm_init();
-
-        /* Disable I/O on nonprivileged levels
-         * clear the NT(nested-thread) flag 
+        
+        /* Disable I/O on nonprivileged levels
+         * clear the NT (nested-thread) flag 
          */
         clean_IOPL_NT_flags();