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Commit 82924e54 authored by Khalid Aziz's avatar Khalid Aziz Committed by David S. Miller
Browse files

sparc64: Add ADI capability to cpu capabilities 



Add ADI (Application Data Integrity) capability to cpu capabilities list.
ADI capability allows virtual addresses to be encoded with a tag in
bits 63-60. This tag serves as an access control key for the regions
of virtual address with ADI enabled and a key set on them. Hypervisor
encodes this capability as "adp" in "hwcap-list" property in machine
description.

Signed-off-by: default avatarKhalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 01fd3c27

arch/sparc/include/asm/elf_64.h

+1 −0
Original line number Diff line number Diff line
@@ -95,6 +95,7 @@ 
 * really available.  So we simply advertise only "crypto" support.

 */

#define HWCAP_SPARC_CRYPTO	0x04000000 /* CRYPTO insns available */

#define HWCAP_SPARC_ADI		0x08000000 /* ADI available */



#define CORE_DUMP_USE_REGSET

arch/sparc/kernel/setup_64.c

+5 −4
Original line number Diff line number Diff line
@@ -380,7 +380,8 @@ static const char *hwcaps[] = { 
	 */

	"mul32", "div32", "fsmuld", "v8plus", "popc", "vis", "vis2",

	"ASIBlkInit", "fmaf", "vis3", "hpc", "random", "trans", "fjfmau",

	"ima", "cspare", "pause", "cbcond",

	"ima", "cspare", "pause", "cbcond", NULL /*reserved for crypto */,

	"adp",

};



static const char *crypto_hwcaps[] = {
@@ -396,7 +397,7 @@ void cpucap_info(struct seq_file *m) 
	seq_puts(m, "cpucaps\t\t: ");

	for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {

		unsigned long bit = 1UL << i;

		if (caps & bit) {

		if (hwcaps[i] && (caps & bit)) {

			seq_printf(m, "%s%s",

				   printed ? "," : "", hwcaps[i]);

			printed++;
@@ -450,7 +451,7 @@ static void __init report_hwcaps(unsigned long caps) 


	for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {

		unsigned long bit = 1UL << i;

		if (caps & bit)

		if (hwcaps[i] && (caps & bit))

			report_one_hwcap(&printed, hwcaps[i]);

	}

	if (caps & HWCAP_SPARC_CRYPTO)
@@ -485,7 +486,7 @@ static unsigned long __init mdesc_cpu_hwcap_list(void) 
		for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {

			unsigned long bit = 1UL << i;



			if (!strcmp(prop, hwcaps[i])) {

			if (hwcaps[i] && !strcmp(prop, hwcaps[i])) {

				caps |= bit;

				break;

			}