arch/s390/include/asm/cpacf.h

Source file repositories/reference/linux-study-clean/arch/s390/include/asm/cpacf.h

File Facts

System: Linux kernel
Corpus path: arch/s390/include/asm/cpacf.h
Extension: .h
Size: 22050 bytes
Lines: 737
Domain: Architecture Layer
Bucket: arch/s390
Inferred role: Architecture Layer: implementation source
Status: source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

asm/facility.h
linux/kmsan-checks.h

Detected Declarations

function __cpacf_query_rre
function __cpacf_query_rrf
function __cpacf_query_insn
function __cpacf_query
function __cpacf_check_opcode
function cpacf_query
function cpacf_test_func
function cpacf_query_func
function __cpacf_qai
function cpacf_qai
function cpacf_km
function cpacf_kmc
function cpacf_kimd
function cpacf_klmd
function _cpacf_kmac
function cpacf_kmac
function cpacf_kmctr
function cpacf_prno
function cpacf_trng
function cpacf_pcc
function cpacf_pckmo
function cpacf_kma

Annotated Snippet

#ifndef _ASM_S390_CPACF_H
#define _ASM_S390_CPACF_H

#include <asm/facility.h>
#include <linux/kmsan-checks.h>

/*
 * Instruction opcodes for the CPACF instructions
 */
#define CPACF_KMAC		0xb91e		/* MSA	*/
#define CPACF_KM		0xb92e		/* MSA	*/
#define CPACF_KMC		0xb92f		/* MSA	*/
#define CPACF_KIMD		0xb93e		/* MSA	*/
#define CPACF_KLMD		0xb93f		/* MSA	*/
#define CPACF_PCKMO		0xb928		/* MSA3 */
#define CPACF_KMF		0xb92a		/* MSA4 */
#define CPACF_KMO		0xb92b		/* MSA4 */
#define CPACF_PCC		0xb92c		/* MSA4 */
#define CPACF_KMCTR		0xb92d		/* MSA4 */
#define CPACF_PRNO		0xb93c		/* MSA5 */
#define CPACF_KMA		0xb929		/* MSA8 */
#define CPACF_KDSA		0xb93a		/* MSA9 */

/*
 * En/decryption modifier bits
 */
#define CPACF_ENCRYPT		0x00
#define CPACF_DECRYPT		0x80

/*
 * Function codes for the KM (CIPHER MESSAGE) instruction
 */
#define CPACF_KM_QUERY		0x00
#define CPACF_KM_DEA		0x01
#define CPACF_KM_TDEA_128	0x02
#define CPACF_KM_TDEA_192	0x03
#define CPACF_KM_AES_128	0x12
#define CPACF_KM_AES_192	0x13
#define CPACF_KM_AES_256	0x14
#define CPACF_KM_PAES_128	0x1a
#define CPACF_KM_PAES_192	0x1b
#define CPACF_KM_PAES_256	0x1c
#define CPACF_KM_XTS_128	0x32
#define CPACF_KM_XTS_256	0x34
#define CPACF_KM_PXTS_128	0x3a
#define CPACF_KM_PXTS_256	0x3c
#define CPACF_KM_XTS_128_FULL	0x52
#define CPACF_KM_XTS_256_FULL	0x54
#define CPACF_KM_PXTS_128_FULL	0x5a
#define CPACF_KM_PXTS_256_FULL	0x5c

/*
 * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING)
 * instruction
 */
#define CPACF_KMC_QUERY		0x00
#define CPACF_KMC_DEA		0x01
#define CPACF_KMC_TDEA_128	0x02
#define CPACF_KMC_TDEA_192	0x03
#define CPACF_KMC_AES_128	0x12
#define CPACF_KMC_AES_192	0x13
#define CPACF_KMC_AES_256	0x14
#define CPACF_KMC_PAES_128	0x1a
#define CPACF_KMC_PAES_192	0x1b
#define CPACF_KMC_PAES_256	0x1c
#define CPACF_KMC_PRNG		0x43

/*
 * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER)
 * instruction
 */
#define CPACF_KMCTR_QUERY	0x00
#define CPACF_KMCTR_DEA		0x01
#define CPACF_KMCTR_TDEA_128	0x02
#define CPACF_KMCTR_TDEA_192	0x03
#define CPACF_KMCTR_AES_128	0x12
#define CPACF_KMCTR_AES_192	0x13
#define CPACF_KMCTR_AES_256	0x14
#define CPACF_KMCTR_PAES_128	0x1a
#define CPACF_KMCTR_PAES_192	0x1b
#define CPACF_KMCTR_PAES_256	0x1c

/*
 * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
 * instruction
 */
#define CPACF_KIMD_QUERY	0x00
#define CPACF_KIMD_SHA_1	0x01
#define CPACF_KIMD_SHA_256	0x02
#define CPACF_KIMD_SHA_512	0x03

Annotation

Immediate include surface: `asm/facility.h`, `linux/kmsan-checks.h`.
Detected declarations: `function __cpacf_query_rre`, `function __cpacf_query_rrf`, `function __cpacf_query_insn`, `function __cpacf_query`, `function __cpacf_check_opcode`, `function cpacf_query`, `function cpacf_test_func`, `function cpacf_query_func`, `function __cpacf_qai`, `function cpacf_qai`.
Atlas domain: Architecture Layer / arch/s390.
Implementation status: source implementation candidate.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.