| /SPARTAN/trunk/arch/amd64/src/boot/boot.S |
|---|
| 31,6 → 31,7 |
| #include <arch/mm/page.h> |
| #include <arch/mm/ptl.h> |
| #include <arch/pm.h> |
| #include <arch/cpu.h> |
| #define START_STACK 0x7c00 |
| #define START_STACK_64 0xffffffff80007c00 |
| 101,9 → 102,9 |
| movl %eax, %cr3 |
| # Enable long mode |
| movl $0xc0000080, %ecx # EFER MSR number |
| movl $EFER_MSR_NUM, %ecx # EFER MSR number |
| rdmsr # Read EFER |
| btsl $8, %eax # Set LME=1 |
| btsl $AMD_LME_FLAG, %eax # Set LME=1 |
| wrmsr # Write EFER |
| # Enable paging to activate long mode (set CR0.PG=1) |