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Date: Tue, 02 Jun 2015 19:49:53 +0300 From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> To: Borislav Petkov <bp@...e.de> Cc: Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org Subject: Re: [PATCH 1/1] x86/microcode: vsnprintf() might be unavailable On Tue, 2015-06-02 at 18:24 +0200, Borislav Petkov wrote: > On Tue, Jun 02, 2015 at 05:56:43PM +0300, Andy Shevchenko wrote: > > On Intel CPUs with x32 kernels we call load_builtin_intel_microcode() from > > head_32.S on quite earlier stage. At that point sprintf() might be out of scope > > to be called. > > Hrrm, I don't get that. How can sprintf() be out of scope? Initial paging setup is involved? I just sent a small update to previous patch. Please, look at it. > > Testing on 32-bit was successful here. How is x32 different? Hmm… which Intel CPUs you run on? Ah, one more thing we run our kernel from kexec (I hope it's not a case, but who knows). > > Thanks. > -- Andy Shevchenko <andriy.shevchenko@...el.com> Intel Finland Oy -- 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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