Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Borislav Petkov
On Mon, Jan 15, 2018 at 09:06:07PM +0800, Jia Zhang wrote: > Yes I'm wrong with platform id so drop it. Also, please do not top-post. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Borislav Petkov
On Mon, Jan 15, 2018 at 09:06:07PM +0800, Jia Zhang wrote: > Yes I'm wrong with platform id so drop it. Also, please do not top-post. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Jia Zhang
在 2018/1/15 下午7:48, Henrique de Moraes Holschuh 写道: > On Mon, 15 Jan 2018, Jia Zhang wrote: >> For more details, see erratum BDF90 in document #334165 (Intel Xeon >> Processor E7-8800/4800 v4 Product Family Specification Update) from >> September 2017. > > For the record, this erratum may well

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Jia Zhang
在 2018/1/15 下午7:48, Henrique de Moraes Holschuh 写道: > On Mon, 15 Jan 2018, Jia Zhang wrote: >> For more details, see erratum BDF90 in document #334165 (Intel Xeon >> Processor E7-8800/4800 v4 Product Family Specification Update) from >> September 2017. > > For the record, this erratum may well

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Jia Zhang
在 2018/1/15 下午7:48, Henrique de Moraes Holschuh 写道: > On Mon, 15 Jan 2018, Jia Zhang wrote: >> For more details, see erratum BDF90 in document #334165 (Intel Xeon >> Processor E7-8800/4800 v4 Product Family Specification Update) from >> September 2017. > > For the record, this erratum may well

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Jia Zhang
在 2018/1/15 下午7:48, Henrique de Moraes Holschuh 写道: > On Mon, 15 Jan 2018, Jia Zhang wrote: >> For more details, see erratum BDF90 in document #334165 (Intel Xeon >> Processor E7-8800/4800 v4 Product Family Specification Update) from >> September 2017. > > For the record, this erratum may well

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Jia Zhang
Yes I'm wrong with platform id so drop it. Jia 在 2018/1/15 下午6:10, Borislav Petkov 写道: > On Mon, Jan 15, 2018 at 01:43:23PM +0800, Jia Zhang wrote: >> The commit b94b73733171 >> ("x86/microcode/intel: Extend BDW late-loading with a revision check") >> reduces the impact of erratum BDF90 for

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Jia Zhang
Yes I'm wrong with platform id so drop it. Jia 在 2018/1/15 下午6:10, Borislav Petkov 写道: > On Mon, Jan 15, 2018 at 01:43:23PM +0800, Jia Zhang wrote: >> The commit b94b73733171 >> ("x86/microcode/intel: Extend BDW late-loading with a revision check") >> reduces the impact of erratum BDF90 for

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Henrique de Moraes Holschuh
On Mon, 15 Jan 2018, Jia Zhang wrote: > For more details, see erratum BDF90 in document #334165 (Intel Xeon > Processor E7-8800/4800 v4 Product Family Specification Update) from > September 2017. For the record, this erratum may well affect some E5v4 as well. Anything with a LLC/core ratio >= 2.5

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Henrique de Moraes Holschuh
On Mon, 15 Jan 2018, Jia Zhang wrote: > For more details, see erratum BDF90 in document #334165 (Intel Xeon > Processor E7-8800/4800 v4 Product Family Specification Update) from > September 2017. For the record, this erratum may well affect some E5v4 as well. Anything with a LLC/core ratio >= 2.5

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Borislav Petkov
On Mon, Jan 15, 2018 at 01:43:23PM +0800, Jia Zhang wrote: > The commit b94b73733171 > ("x86/microcode/intel: Extend BDW late-loading with a revision check") > reduces the impact of erratum BDF90 for Broadwell process model. Now, > the impact can be reduced further through adding the checks for >

Re: [PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-15 Thread Borislav Petkov
On Mon, Jan 15, 2018 at 01:43:23PM +0800, Jia Zhang wrote: > The commit b94b73733171 > ("x86/microcode/intel: Extend BDW late-loading with a revision check") > reduces the impact of erratum BDF90 for Broadwell process model. Now, > the impact can be reduced further through adding the checks for >

[PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-14 Thread Jia Zhang
The commit b94b73733171 ("x86/microcode/intel: Extend BDW late-loading with a revision check") reduces the impact of erratum BDF90 for Broadwell process model. Now, the impact can be reduced further through adding the checks for platform id and the size of LLC per core. This fix is useful to

[PATCH 2/2] x86/microcode/intel: Extend BDW late-loading with platform id and LLC check

2018-01-14 Thread Jia Zhang
The commit b94b73733171 ("x86/microcode/intel: Extend BDW late-loading with a revision check") reduces the impact of erratum BDF90 for Broadwell process model. Now, the impact can be reduced further through adding the checks for platform id and the size of LLC per core. This fix is useful to