On Thu, 21 Jul 2011 20:59:40 +0200
Alexander Graf <ag...@suse.de> wrote:
> >> +uint32_t kvmppc_get_clockfreq(void)
> >> +{
> >> + char buf[512];
> >> + uint32_t tb;
> >> + FILE *f;
> >> + int len;
> >> +
> >> + if (kvmppc_find_cpu_dt(buf, sizeof(buf))) {
> >> + return 0;
> >> + }
> >> +
> >> + snprintf(buf, sizeof(buf), "%s/clock-frequency", buf);
> >> +
> >> + f = fopen(buf, "rb");
> >> + if (!f) {
> >> + return -1;
> >> + }
> >> +
> >> + len = fread(&tb, sizeof(tb), 1, f);
> >> + if (len != 1) {
> >> + goto err;
> >> + }
> >> +
> >> + return tb;
> >> +err:
> >> + fclose(f);
> >> + return 0;
> >> +}
> >
> > Need to convert endian from big to host.
>
> Hm. This is kvm specific code for ppc, so only ever runs on host==big :)
Sigh. I looked at what file it was specifically to check whether it was
in a ppc or generic file, and somehow I still didn't see the "ppc". :-P
> > Also, the frequency can be 64-bit.
>
> Would the parameter just be 2 cells then? Got an example how this works?
Yes, it would be 2 cells. Just check the property length.
-Scott
