[Xen-devel] [PATCH][HVM] fix XSAVE leaf 0 EBX size calculation

[Wei Huang <wei.huang2@xxxxxxx>]

Fixes a size calculation bug when enabled bits in XFEATURE_MASK (xcr0)
aren't contiguous.

Current for_loop will stop when xcr0 feature bit is 0. But in reality,
the bits can be non-contiguous. One example is that LWP is bit 62 on AMD
platform. This patch iterates through all bits to calculate the size for
enabled features.

Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>

Attachment: fix_xsave_leaf_0_size_bug.txt
Description: fix_xsave_leaf_0_size_bug.txt

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