Hi Paolo,
On Fri, Nov 21, 2014 at 07:31:18PM +0100, Paolo Bonzini wrote:
[...]
>+ u64 feature = valid & -valid;
>+ int index = fls64(feature) - 1;
>+ void *src = get_xsave_addr(xsave, feature);
>+
>+ if (src) {
>+ u32 size, offset, ecx, edx;
>+ cpuid_count(XSTATE_CPUID, index,
>+ &size, &offset, &ecx, &edx);
>+ memcpy(dest + offset, src, size);
The offset you get is still for compact format, so you almost convert compat
format to compat format instead of convert compact format to standard format.
In addition, I think convert standard format to compact format should be
implemented in put path.
Regards,
Wanpeng Li
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