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xen64: implement xen_load_gs_index() 

xen-64: implement xen_load_gs_index()

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Eduardo Habkost 2008-07-08 15:07:05 -07:00 committed by Ingo Molnar
parent 45eb0d8898
commit a8fc1089e4
1 changed files with 11 additions and 0 deletions
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11
arch/x86/xen/enlighten.c
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@ -385,6 +385,14 @@ static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
loadsegment(gs, 0);
}
#ifdef CONFIG_X86_64
static void xen_load_gs_index(unsigned int idx)
{
if (HYPERVISOR_set_segment_base(SEGBASE_GS_USER_SEL, idx))
BUG();
}
#endif
static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum,
const void *ptr)
{
@ -1063,6 +1071,9 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
.load_gdt = xen_load_gdt,
.load_idt = xen_load_idt,
.load_tls = xen_load_tls,
#ifdef CONFIG_X86_64
.load_gs_index = xen_load_gs_index,
#endif
.store_gdt = native_store_gdt,
.store_idt = native_store_idt,