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This is VIA Technologies. Details here: http://www.tomshardware.com/news/via-chinese-x86-soc-2019,36...
Do you remember that 4 core 2GHz Via cpu from 2015? or maybe that 8 core 2016 one? All paper products https://www.pcgamesn.com/sites/default/files/VIA%20CPU.jpg
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Taiwan insist it's Chinese. Its government claims to be the rightful government of the whole of China.
The People's Republic of China and the Republic of China both agree there is a single China which includes Taiwan. They differ over who should govern it.
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>"Zhaoxin's home-grown x86 CPU is completely designed from the ground up within China" Yes, just not that China, another one
Well, given the territorial claims, yes, kind of that one. It just depends which government you believe as to whether the island of Taiwan is occupied territory, or everything else in China is occupied territory. And these are governments we're talking about, so, needless to say, both sides killed millions to make this happen. Not because those people that got killed worked for the other side or were doing anything a…
Do they have meltdown and/or spectre bug?
They have spectre, any CPU with speculative execution and caches of any sort (excluding some capability machines, no ROP exploit machines and PLB enforced SASOS machines), including branch prediction (!) is vulnerable to spectre. (For those of you not in comp arch, that roughly translates to "literally every single non embedded CPU, and then some") That's what makes the flaw so deep and troublesome.
Anyway, "caches of any sort" sounds frightening: I can remember disabling all the caches on Pentium-3 to make it about as slow as 80386 so some ancient games that can't run on fast CPUs would run ok and be playable.
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It certainly goes a long way towards redirecting money to favoured state companies and building protectionist barriers, yes. Whether it provides any actual security is another matter.
Are you aware of historical events like the 1982 Siberian pipeline explosion? It was allegedly caused by sabotaged software inserted by a Canadian company on behalf of the CIA. Modern chips are certainly dense enough and have enough layers that you can hide Trojans in them. Buying e.g. routers with Chinese ICs is a credible threat to the US government.
I surprised most cpu chips don't have government back-doors in them.
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They have spectre, any CPU with speculative execution and caches of any sort (excluding some capability machines, no ROP exploit machines and PLB enforced SASOS machines), including branch prediction (!) is vulnerable to spectre. (For those of you not in comp arch, that roughly translates to "literally every single non embedded CPU, and then some") That's what makes the flaw so deep and troublesome.
Is speculative execution actually worth it? Can't compilers do the job and optimize execution sufficiently so we won't need speculative execution? Anyway, "caches of any sort" sounds frightening: I can remember disabling all the caches on Pentium-3 to make it about as slow as 80386 so some ancient games that can't run on fast CPUs would run ok and be playable.
Smarter compilers wouldn't really help, this is all about how the code is running for the next millisecond on this specific workload on this specific CPU, rather than how it's running today or on this cluster or in general.
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They have spectre, any CPU with speculative execution and caches of any sort (excluding some capability machines, no ROP exploit machines and PLB enforced SASOS machines), including branch prediction (!) is vulnerable to spectre. (For those of you not in comp arch, that roughly translates to "literally every single non embedded CPU, and then some") That's what makes the flaw so deep and troublesome.
Is the Mill architecture solving problems orthogonal to this?
At the end of the day, though, Meltdown and Spectre are both consequences of all the caching between a modern CPU and main memory, so the Mill will likely need to at least be careful.
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Are you aware of historical events like the 1982 Siberian pipeline explosion? It was allegedly caused by sabotaged software inserted by a Canadian company on behalf of the CIA. Modern chips are certainly dense enough and have enough layers that you can hide Trojans in them. Buying e.g. routers with Chinese ICs is a credible threat to the US government.
> Modern chips are certainly dense enough and have enough layers that you can hide Trojans in them. Buying e.g. routers with Chinese ICs is a credible threat to the US government. Why bother hiding the malware in hardware? Most electronics are made in China these days anyway, and only a very, very small fraction of users ever replace or investigate the firmware on their devices. Much easier and cheaper just to load a…
Remember that the users we are talking about here are US government agencies. Yes, they do investigate firmware. Yes, they do code reviews of your firmware source code. No, they won't let you just ship them a Chinese router with factory firmware on it.
