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Message-Id: <20230823125144.27587-1-qiuxu.zhuo@intel.com>
Date: Wed, 23 Aug 2023 20:51:44 +0800
From: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
To: tglx@...utronix.de
Cc: arjan@...ux.intel.com, ashok.raj@...el.com, bp@...en8.de,
linux-kernel@...r.kernel.org, nik.borisov@...e.com, x86@...nel.org,
qiuxu.zhuo@...el.com
Subject: Re: [patch V2 03/37] x86/microcode/intel: Move microcode functions out of cpu/intel.c
Hi Thomas,
> ...
> -#define get_totalsize(mc) \
> - (((struct microcode_intel *)mc)->hdr.datasize ? \
> - ((struct microcode_intel *)mc)->hdr.totalsize : \
> - DEFAULT_UCODE_TOTALSIZE)
> +#define DEFAULT_UCODE_DATASIZE (2000)
>
> ...
> +
> +static inline unsigned int get_totalsize(struct microcode_header_intel *hdr)
> +{
> + return hdr->datasize ? : DEFAULT_UCODE_TOTALSIZE;
I tested this patch series and observed that the inline code above failed
the late microcode loading with the error message:
[ 117.100299] microcode: Error: bad microcode data file size.
According to the original get_totalsize() macro, seems like it should be:
return hdr->datasize ? hdr->totalsize : DEFAULT_UCODE_TOTALSIZE;
With this minor change, the late microcode loading was successful, and the
expected message was displayed:
...
[ 150.198654] microcode: Microcode revision: 0x80000400 -> 0x80000401
-Qiuxu
> +}
> ...
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