Re: [PATCH 3/3] vTPM: support little endian guests

[Ashley Lai]

> > @@ -208,11 +229,43 @@ static int tpm_binary_bios_measurements_show(struct 
> > seq_file *m, void *v)
> > 	struct tcpa_event *event = v;
> > 	char *data = v;
> > 	int i;
> > -
> > -	for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
> > +	u32 x;
> > +	char tmp[4];
> > +
> > +	/* PCR */
> > +	x = convert_to_host_format(event->pcr_index);
> > +	memcpy(tmp, &x, 4);
> > +	for (i = 0; i < 4; i++)
> > +		seq_putc(m, tmp[i]);
> > +	data += 4;
> > +
> > +	/* Event Type */
> > +	x = convert_to_host_format(event->event_type);
> > +	memcpy(tmp, &x, 4);
> > +	for (i = 0; i < 4; i++)
> > +		seq_putc(m, tmp[i]);
> > +	data += 4;
> > +
> > +	/* HASH */
> > +	for (i = 0; i < 20; i++)
> > 		seq_putc(m, data[i]);
> > +	data += 20;
> > +
> > +	/* Size */
> > +	x = convert_to_host_format(event->event_size);
> > +	memcpy(tmp, &x, 4);
> > +	for (i = 0; i < 4; i++)
> > +		seq_putc(m, tmp[i]);
> > +	data += 4;
> > +
> > +	/* Data */
> > +	if (convert_to_host_format(event->event_size)) {
> > +		for (i = 0; i < convert_to_host_format(event->event_size); 
> > i++)
> > +			seq_putc(m, data[i]);
> > +	}
> >
> > 	return 0;
> > +
> > }
> If the tcpa_event structure is converted, you may be able to get away with 
> memcpy and the for loop.

You can get away with memcpy and use the original for loop.
  for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
    seq_putc(m, data[i]);

Thanks,
--Ashley
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