Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-02-09 Thread Hauke Mehrtens
On 02/09/2018 09:46 PM, Philip Prindeville wrote: > > >> On Jan 18, 2018, at 2:15 PM, Hauke Mehrtens wrote: >> >> On 01/18/2018 01:51 PM, Nick Lowe wrote: >>> Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to >>> properly address this? There are fixes to mitigate Spectre. >> >>

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-02-09 Thread Philip Prindeville
> On Jan 18, 2018, at 2:15 PM, Hauke Mehrtens wrote: > > On 01/18/2018 01:51 PM, Nick Lowe wrote: >> Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to >> properly address this? There are fixes to mitigate Spectre. > > We even need a patch for GCC which will be in GCC 8 and 7.

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-21 Thread Zoltan HERPAI
John Crispin wrote: On 17/01/18 20:41, Zoltan HERPAI wrote: Hi, This series will add support for microcode update on x86 targets, in light of the recent security issues. While other distributions use an early initramfs approach to update the microcode as early as possible, in OpenWrt the ear

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-20 Thread Hauke Mehrtens
On 01/18/2018 11:41 PM, Zoltan HERPAI wrote: > > > On Thu, 18 Jan 2018, Hauke Mehrtens wrote: > >> On 01/18/2018 01:51 PM, Nick Lowe wrote: >>> Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to >>> properly address this? There are fixes to mitigate Spectre. >> >> We even need a

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-19 Thread Toan Pham
>> Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to >> properly address this? There are fixes to mitigate Spectre. As far as I know, to properly mitigate spectre variant 2, it requires update to microcode along w/ kernel support for IBRS. However, IBRS feature was just committe

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-19 Thread Zoltan HERPAI
Lucian Cristian wrote: On 19.01.2018 00:41, Zoltan HERPAI wrote: On Thu, 18 Jan 2018, Hauke Mehrtens wrote: On 01/18/2018 01:51 PM, Nick Lowe wrote: Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to properly address this? There are fixes to mitigate Spectre. We even need

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-19 Thread Lucian Cristian
On 19.01.2018 00:41, Zoltan HERPAI wrote: On Thu, 18 Jan 2018, Hauke Mehrtens wrote: On 01/18/2018 01:51 PM, Nick Lowe wrote: Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to properly address this? There are fixes to mitigate Spectre. We even need a patch for GCC which w

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-18 Thread Zoltan HERPAI
On Thu, 18 Jan 2018, Hauke Mehrtens wrote: On 01/18/2018 01:51 PM, Nick Lowe wrote: Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to properly address this? There are fixes to mitigate Spectre. We even need a patch for GCC which will be in GCC 8 and 7.3. For master we shou

Re: [OpenWrt-Devel] [LEDE-DEV] [PATCH 0/5] x86: add support for microcode update

2018-01-18 Thread Hauke Mehrtens
On 01/18/2018 01:51 PM, Nick Lowe wrote: > Does an update to the Kernel, 4.9.77 and 4.14.14 need to be made to > properly address this? There are fixes to mitigate Spectre. We even need a patch for GCC which will be in GCC 8 and 7.3. For master we should backport it to GCC 5.5, but what do we want