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Commit 77606708 authored by Harald Freudenberger's avatar Harald Freudenberger Committed by Martin Schwidefsky
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s390/crypto: Add PCKMO inline function 



Adding the PCKMO inline function and the function code definitions
for using the pckmo function to the cpacf header file.

Signed-off-by: default avatarHarald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent d0360d7b

arch/s390/include/asm/cpacf.h

+32 −0
Original line number Diff line number Diff line
@@ -98,6 +98,18 @@ 
#define CPACF_KMAC_TDEA_128	0x02

#define CPACF_KMAC_TDEA_192	0x03



/*

 * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT)

 * instruction

 */

#define CPACF_PCKMO_QUERY		0x00

#define CPACF_PCKMO_ENC_DES_KEY		0x01

#define CPACF_PCKMO_ENC_TDES_128_KEY	0x02

#define CPACF_PCKMO_ENC_TDES_192_KEY	0x03

#define CPACF_PCKMO_ENC_AES_128_KEY	0x12

#define CPACF_PCKMO_ENC_AES_192_KEY	0x13

#define CPACF_PCKMO_ENC_AES_256_KEY	0x14



/*

 * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION)

 * instruction
@@ -397,4 +409,24 @@ static inline void cpacf_pcc(unsigned long func, void *param) 
		: "cc", "memory");

}



/**

 * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY

 *		  MANAGEMENT) instruction

 * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines

 * @param: address of parameter block; see POP for details on each func

 *

 * Returns 0.

 */

static inline void cpacf_pckmo(long func, void *param)

{

	register unsigned long r0 asm("0") = (unsigned long) func;

	register unsigned long r1 asm("1") = (unsigned long) param;



	asm volatile(

		"       .insn   rre,%[opc] << 16,0,0\n" /* PCKMO opcode */

		:

		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO)

		: "cc", "memory");

}



#endif	/* _ASM_S390_CPACF_H */