| 26,8 → 26,6 |
|---|
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| # |
| # CPU identification functions. |
| # The code below just interfaces the CPUID instruction. |
| # CPU recognition logic is contained in higher-level functions. |
| |
| 37,6 → 35,11 |
|---|
| .global cpuid |
| .global rdtsc |
| |
| |
| ## Determine CPUID support |
| # |
| # Return 0 in EAX if CPUID is not support, 1 if supported. |
| # |
| has_cpuid: |
| push %ebx |
| |
| 55,7 → 58,18 |
|---|
| pop %ebx |
| ret |
| |
| # cpuid(__u32 cmd, struct cpu_info *info) |
| |
| ## Get CPUID data |
| # |
| # This code is just an interfaces the CPUID instruction, CPU recognition |
| # logic is contained in higher-level functions. |
| # |
| # The C prototype is: |
| # void cpuid(__u32 cmd, struct cpu_info *info) |
| # |
| # @param cmd CPUID command. |
| # @param info Buffer to store CPUID output. |
| # |
| cpuid: |
| pushl %ebp |
| movl %esp,%ebp |