On 28.10.2019 16:01, Andrew Cooper wrote: > At the time of fixing c/s 20f1976b44, no obvious errata had been published, > and BDF14 looked like the most obvious candidate. Subsequently, BDF93 has > been published and it is obviously this. > > The erratum states that LER_TO_LIP is the only affected MSR. The provisional > fix in Xen adjusted LER_FROM_LIP, but this is not correct. The FROM MSRs are > intended to have TSX metadata, and for steppings with TSX enabled, it will > corrupt the value the guest sees, while for parts with TSX disabled, it is > redundant with FIXUP_TSX. Drop the LER_FROM_LIP adjustment. > > Replace BDF14 references with BDF93, drop the redundant 'bdw_erratum_' prefix, > and use an Intel vendor check, as other vendors implement VT-x. > > Signed-off-by: Andrew Cooper <[email protected]>
Reviewed-by: Jan Beulich <[email protected]> preferably with the erratum indicator in the title corrected to also say BDF93. Jan _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
