| Subject | [PATCH 43 of 55] xen64: implement xen_load_gs_index() | Date | Tue, 08 Jul 2008 15:07:05 -0700 | From | Jeremy Fitzhardinge <> |
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From: Eduardo Habkost <ehabkost@redhat.com>
xen-64: implement xen_load_gs_index()
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> --- arch/x86/xen/enlighten.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -384,6 +384,14 @@ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_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 @@ .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,
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