diff options
Diffstat (limited to 'kvm')
| -rw-r--r-- | kvm/user/test/x86/cstart64.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kvm/user/test/x86/cstart64.S b/kvm/user/test/x86/cstart64.S index e5554baff..f1a9d0955 100644 --- a/kvm/user/test/x86/cstart64.S +++ b/kvm/user/test/x86/cstart64.S @@ -80,9 +80,19 @@ mb_flags = 0x0 # multiboot header .long mb_magic, mb_flags, 0 - (mb_magic + mb_flags) +MSR_GS_BASE = 0xc0000101 + +.macro setup_percpu_area + lea -4096(%esp), %eax + mov $0, %edx + mov $MSR_GS_BASE, %ecx + wrmsr +.endm + .globl start start: mov $stacktop, %esp + setup_percpu_area call prepare_64 jmpl $8, $start64 @@ -142,6 +152,7 @@ ap_start32: mov %ax, %ss mov $-4096, %esp lock/xaddl %esp, smp_stacktop + setup_percpu_area call prepare_64 ljmpl $8, $ap_start64 |