What are you talking about? That patch says AMD CPU's aren't vulnerable:
AMD processors are not subject to the types of attacks that the kernel page table isolation feature protects against. The AMD microarchitecture does not allow memory references, including speculative references, that access higher privileged data when running in a lesser privileged mode when that access would result in a page fault.
The (trivial) patch essential disables the work-around on AMD CPUs. I'm not going to comment on how fair GP's criticism of Intel is in general, but that link definitely isn't evidence in Intel's favor
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AMD processors are not subject to the types of attacks that the kernel page table isolation feature protects against. The AMD microarchitecture does not allow memory references, including speculative references, that access higher privileged data when running in a lesser privileged mode when that access would result in a page fault.
The (trivial) patch essential disables the work-around on AMD CPUs. I'm not going to comment on how fair GP's criticism of Intel is in general, but that link definitely isn't evidence in Intel's favor