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Date: Thu, 8 Aug 2013 19:49:06 +0200 From: Borislav Petkov <bp@...en8.de> To: "Yu, Fenghua" <fenghua.yu@...el.com> Cc: Torsten Kaiser <just.for.lkml@...glemail.com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Jacob Shin <jacob.shin@....com>, Johannes Hirte <johannes.hirte@....tu-ilmenau.de>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 3/5] x86, AMD: cleanup: merge common code in early microcode loading On Wed, Aug 07, 2013 at 11:34:01PM +0000, Yu, Fenghua wrote: > > This check won't work when CPU0 is hot added. So we need to find a > > better way to fix this. > > > > Maybe need to change the check as follows to take care of CPU0 hot add case? > > if ((cpu && system_state == SYSTEM_BOOTING) || (system_state == SYSTEM_RUNNING)) > load_ucode_ap(); Ok, just for my own understanding - I haven't played with cpu hotadd yet so when you do this, is the hot-added socket containing the BSP not cpu 0 anymore? Or when you hot-remove the socket containing the BSP, another AP becomes the BSP and preserves its old number? Thanks. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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