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xen/x86: add desc_equal() to compare GDT descriptors

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Signed-off-by: David Vrabel <david.vrabel@citrix.com>
[v1: Moving it to the Xen file]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
David Vrabel 2012-07-09 11:39:07 +01:00 committed by Konrad Rzeszutek Wilk
parent 66a27dde9a
commit 59290362da
1 changed files with 6 additions and 0 deletions
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6
arch/x86/xen/enlighten.c
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@ -539,6 +539,12 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
BUG(); BUG();
} }
static inline bool desc_equal(const struct desc_struct *d1,
const struct desc_struct *d2)
{
return d1->a == d2->a && d1->b == d2->b;
}
static void load_TLS_descriptor(struct thread_struct *t, static void load_TLS_descriptor(struct thread_struct *t,
unsigned int cpu, unsigned int i) unsigned int cpu, unsigned int i)
{ {