Commit 079b90d4 authored by Chang S. Bae's avatar Chang S. Bae Committed by Borislav Petkov (AMD)
Browse files

x86/microcode/intel: Define staging state struct 



Define a staging_state struct to simplify function prototypes by consolidating
relevant data, instead of passing multiple local variables.

Signed-off-by: default avatarChang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: default avatarTony Luck <tony.luck@intel.com>
Tested-by: default avatarAnselm Busse <abusse@amazon.de>
Link: https://lore.kernel.org/20250320234104.8288-1-chang.seok.bae@intel.com
parent 740144bc

arch/x86/kernel/cpu/microcode/intel.c

+17 −0
Original line number Diff line number Diff line
@@ -54,6 +54,23 @@ struct extended_sigtable { 
	struct extended_signature	sigs[];

};



/**

 * struct staging_state - Track the current staging process state

 *

 * @mmio_base:		MMIO base address for staging

 * @ucode_len:		Total size of the microcode image

 * @chunk_size:		Size of each data piece

 * @bytes_sent:		Total bytes transmitted so far

 * @offset:		Current offset in the microcode image

 */

struct staging_state {

	void __iomem		*mmio_base;

	unsigned int		ucode_len;

	unsigned int		chunk_size;

	unsigned int		bytes_sent;

	unsigned int		offset;

};



#define DEFAULT_UCODE_TOTALSIZE (DEFAULT_UCODE_DATASIZE + MC_HEADER_SIZE)

#define EXT_HEADER_SIZE		(sizeof(struct extended_sigtable))

#define EXT_SIGNATURE_SIZE	(sizeof(struct extended_signature))