| Message ID | 1253523338-22784-3-git-send-email-avi@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/kvm/user/test/x86/cstart64.S b/kvm/user/test/x86/cstart64.S index e5554ba..f1a9d09 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
Currently sharing space with the stack. Signed-off-by: Avi Kivity <avi@redhat.com> --- kvm/user/test/x86/cstart64.S | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-)