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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [SUSPECTED SPAM]Ryzen 3xxx works with Windows
On 18.11.2019 12:39, George Dunlap wrote: > On 11/15/19 5:06 PM, Andreas Kinzler wrote: >> Hello All, >> >> I compared the CPUID listings from Ryzen 2700X (attached as tar.xz) to >> 3700X and found only very few differences. I added >> >> cpuid = [ "0x80000008:ecx=xxxxxxxxxxxxxxxx0100xxxxxxxxxxxx" ] >> >> to xl.cfg and then Windows runs great with 16 vCPUs. Cinebench R15 score >> is >2050 which is more or less the bare metal value. > > So this is setting those bits to 0100, or 4. What is it on the 3700X if > you don't change it here? According to the CPUID output Andreas had sent it's 4. The current massaging in libxc (which your patch would conditionally suppress) would double this to 8 afaict. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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