Re: [PATCH] x86/microcode: Check microcode revision before updating sibling threads

2018-02-17 Thread Henrique de Moraes Holschuh
On Sat, 17 Feb 2018, Borislav Petkov wrote: > On Sat, Feb 17, 2018 at 11:42:48AM -0200, Henrique de Moraes Holschuh wrote: > > I wonder when this broke, > > It didn't break - we're just printing the update only once. It was before that change, when the microcode subsystem still printed a message

Re: [PATCH] x86/microcode: Check microcode revision before updating sibling threads

2018-02-17 Thread Borislav Petkov
On Sat, Feb 17, 2018 at 11:42:48AM -0200, Henrique de Moraes Holschuh wrote: > I wonder when this broke, It didn't break - we're just printing the update only once. -- Regards/Gruss, Boris. SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --

Re: [PATCH] x86/microcode: Check microcode revision before updating sibling threads

2018-02-17 Thread Henrique de Moraes Holschuh
On Fri, 16 Feb 2018, Ashok Raj wrote: > After updating microcode on one of the threads in the core, the > thread sibling automatically gets the update since the microcode > resources are shared. Check the ucode revision on the cpu before > performing a ucode update. I wonder when this broke, becau

Re: [PATCH] x86/microcode: Check microcode revision before updating sibling threads

2018-02-16 Thread Borislav Petkov
On Fri, Feb 16, 2018 at 10:46:48AM -0800, Ashok Raj wrote: > After updating microcode on one of the threads in the core, the > thread sibling automatically gets the update since the microcode > resources are shared. Check the ucode revision on the cpu before > performing a ucode update. > > Signed

[PATCH] x86/microcode: Check microcode revision before updating sibling threads

2018-02-16 Thread Ashok Raj
After updating microcode on one of the threads in the core, the thread sibling automatically gets the update since the microcode resources are shared. Check the ucode revision on the cpu before performing a ucode update. Signed-off-by: Ashok Raj Cc: X86 ML Cc: LKML --- arch/x86/kernel/cpu/micr