Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

On Fri, Dec 29, 2017 at 10:12:34PM +0800, Jia Zhang wrote: > Thanks for clarifying the terms. What I meant was the microcode update > has to be launched in BIOS rather than late loading in linux runtime. Microcode update on those machines can happen in two ways: * loaded by the BIOS OR *

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

On Fri, Dec 29, 2017 at 10:12:34PM +0800, Jia Zhang wrote: > Thanks for clarifying the terms. What I meant was the microcode update > has to be launched in BIOS rather than late loading in linux runtime. Microcode update on those machines can happen in two ways: * loaded by the BIOS OR *

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

在 2017/12/29 下午9:44, Borislav Petkov 写道: > On Fri, Dec 29, 2017 at 09:17:34PM +0800, Jia Zhang wrote: >> Namely, the end user has to make a BIOS update to uprev the microcode. > > Not quite: end user is dependent on the OEM to get a BIOS update. > > What is meant with early loading in this

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

在 2017/12/29 下午9:44, Borislav Petkov 写道: > On Fri, Dec 29, 2017 at 09:17:34PM +0800, Jia Zhang wrote: >> Namely, the end user has to make a BIOS update to uprev the microcode. > > Not quite: end user is dependent on the OEM to get a BIOS update. > > What is meant with early loading in this

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

On Fri, Dec 29, 2017 at 09:17:34PM +0800, Jia Zhang wrote: > Namely, the end user has to make a BIOS update to uprev the microcode. Not quite: end user is dependent on the OEM to get a BIOS update. What is meant with early loading in this context is, to put the microcode in the initrd so that it

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

On Fri, Dec 29, 2017 at 09:17:34PM +0800, Jia Zhang wrote: > Namely, the end user has to make a BIOS update to uprev the microcode. Not quite: end user is dependent on the OEM to get a BIOS update. What is meant with early loading in this context is, to put the microcode in the initrd so that it

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

在 2017/12/29 下午8:48, Ingo Molnar 写道: > > * Jia Zhang wrote: > >> >> >> 在 2017/12/28 下午8:24, Ingo Molnar 写道: >>> >>> * Jia Zhang wrote: >>> Instead of blacklisting all types of Broadwell processor when running a late loading,

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

在 2017/12/29 下午8:48, Ingo Molnar 写道: > > * Jia Zhang wrote: > >> >> >> 在 2017/12/28 下午8:24, Ingo Molnar 写道: >>> >>> * Jia Zhang wrote: >>> Instead of blacklisting all types of Broadwell processor when running a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79,

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

* Jia Zhang wrote: > > > 在 2017/12/28 下午8:24, Ingo Molnar 写道: > > > > * Jia Zhang wrote: > > > >> Instead of blacklisting all types of Broadwell processor when running > >> a late loading, only BDW-EP (signature 0x406f1, aka family 6,

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

* Jia Zhang wrote: > > > 在 2017/12/28 下午8:24, Ingo Molnar 写道: > > > > * Jia Zhang wrote: > > > >> Instead of blacklisting all types of Broadwell processor when running > >> a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, > >> stepping 1) with the microcode version

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

在 2017/12/28 下午8:24, Ingo Molnar 写道: > > * Jia Zhang wrote: > >> Instead of blacklisting all types of Broadwell processor when running >> a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, >> stepping 1) with the microcode version less than

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

在 2017/12/28 下午8:24, Ingo Molnar 写道: > > * Jia Zhang wrote: > >> Instead of blacklisting all types of Broadwell processor when running >> a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, >> stepping 1) with the microcode version less than 0x0b21 needs to >> be

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

* Jia Zhang wrote: > Instead of blacklisting all types of Broadwell processor when running > a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, > stepping 1) with the microcode version less than 0x0b21 needs to > be blacklisted. > > The

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

* Jia Zhang wrote: > Instead of blacklisting all types of Broadwell processor when running > a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, > stepping 1) with the microcode version less than 0x0b21 needs to > be blacklisted. > > The erratum is documented in the the

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

When all the patch issues are ironed out consider this Acked-by: Tony Luck I was planning to hunt down the erratum when I got back from vacation in the new year. Sent from my iPhone > On Dec 26, 2017, at 04:42, Jia Zhang wrote: > > Instead

Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

When all the patch issues are ironed out consider this Acked-by: Tony Luck I was planning to hunt down the erratum when I got back from vacation in the new year. Sent from my iPhone > On Dec 26, 2017, at 04:42, Jia Zhang wrote: > > Instead of blacklisting all types of Broadwell processor

[PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

Instead of blacklisting all types of Broadwell processor when running a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, stepping 1) with the microcode version less than 0x0b21 needs to be blacklisted. The erratum is documented in the the public documentation #334165 (See

[PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading

Instead of blacklisting all types of Broadwell processor when running a late loading, only BDW-EP (signature 0x406f1, aka family 6, model 79, stepping 1) with the microcode version less than 0x0b21 needs to be blacklisted. The erratum is documented in the the public documentation #334165 (See