Re: [RFC PATCH 18/35] Support gdt/idt/ldt handling on Xen.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi!

> +static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
> +{
> +#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]
> +	C(0); C(1); C(2);
> +#undef C
> +}

Why not use for loop here? gcc should be able to optimize it...

> +#define load_TR_desc()

do {} while (0)...

> +#define load_gdt(dtr) do {						\
...
> +} while (0)

So you know the trick :-)

> +#define load_idt(dtr) HYPERVISOR_set_trap_table(xen_trap_table)
> +#define load_tr(tr) __asm__ __volatile("ltr %0"::"mr" (tr))
> +#define load_ldt(ldt) __asm__ __volatile("lldt %0"::"mr" (ldt))

__volatile (not __volatile__?). could you just use 'asm volatile'
without __s instead?

							Pavel
-- 
Thanks for all the (sleeping) penguins.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux