Revision aa9887608e77b835d51f05a54940380391cd4e21 authored by Anup Patel on 27 September 2020, 05:39:16 UTC, committed by Palmer Dabbelt on 30 September 2020, 18:05:14 UTC
The NoMMU kernel is broken for QEMU virt machine from Linux-5.9-rc6
because clint_time_val is used even before CLINT driver is probed
at following places:
1. rand_initialize() calls get_cycles() which in-turn uses
   clint_time_val
2. boot_init_stack_canary() calls get_cycles() which in-turn
   uses clint_time_val

The issue#1 (above) is fixed by providing custom random_get_entropy()
for RISC-V NoMMU kernel. For issue#2 (above), we remove dependency of
boot_init_stack_canary() on get_cycles() and this is aligned with the
boot_init_stack_canary() implementations of ARM, ARM64 and MIPS kernel.

Fixes: d5be89a8d118 ("RISC-V: Resurrect the MMIO timer implementation for M-mode systems")
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
1 parent c14decf
Raw File
tcrypt.h
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Quick & dirty crypto testing module.
 *
 * This will only exist until we have a better testing mechanism
 * (e.g. a char device).
 *
 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
 * Copyright (c) 2002 Jean-Francois Dive <jef@linuxbe.org>
 * Copyright (c) 2007 Nokia Siemens Networks
 */
#ifndef _CRYPTO_TCRYPT_H
#define _CRYPTO_TCRYPT_H

struct cipher_speed_template {
	const char *key;
	unsigned int klen;
};

struct aead_speed_template {
	const char *key;
	unsigned int klen;
};

struct hash_speed {
	unsigned int blen;	/* buffer length */
	unsigned int plen;	/* per-update length */
	unsigned int klen;	/* key length */
};

/*
 * DES test vectors.
 */
#define DES3_SPEED_VECTORS	1

static struct cipher_speed_template des3_speed_template[] = {
	{
		.key	= "\x01\x23\x45\x67\x89\xab\xcd\xef"
			  "\x55\x55\x55\x55\x55\x55\x55\x55"
			  "\xfe\xdc\xba\x98\x76\x54\x32\x10",
		.klen	= 24,
	}
};

/*
 * Cipher speed tests
 */
static u8 speed_template_8[] = {8, 0};
static u8 speed_template_16[] = {16, 0};
static u8 speed_template_24[] = {24, 0};
static u8 speed_template_8_16[] = {8, 16, 0};
static u8 speed_template_8_32[] = {8, 32, 0};
static u8 speed_template_16_32[] = {16, 32, 0};
static u8 speed_template_16_24_32[] = {16, 24, 32, 0};
static u8 speed_template_20_28_36[] = {20, 28, 36, 0};
static u8 speed_template_32_40_48[] = {32, 40, 48, 0};
static u8 speed_template_32_48[] = {32, 48, 0};
static u8 speed_template_32_48_64[] = {32, 48, 64, 0};
static u8 speed_template_32_64[] = {32, 64, 0};
static u8 speed_template_32[] = {32, 0};

/*
 * AEAD speed tests
 */
static u8 aead_speed_template_19[] = {19, 0};
static u8 aead_speed_template_20[] = {20, 0};
static u8 aead_speed_template_36[] = {36, 0};

/*
 * Digest speed tests
 */
static struct hash_speed generic_hash_speed_template[] = {
	{ .blen = 16,	.plen = 16, },
	{ .blen = 64,	.plen = 16, },
	{ .blen = 64,	.plen = 64, },
	{ .blen = 256,	.plen = 16, },
	{ .blen = 256,	.plen = 64, },
	{ .blen = 256,	.plen = 256, },
	{ .blen = 1024,	.plen = 16, },
	{ .blen = 1024,	.plen = 256, },
	{ .blen = 1024,	.plen = 1024, },
	{ .blen = 2048,	.plen = 16, },
	{ .blen = 2048,	.plen = 256, },
	{ .blen = 2048,	.plen = 1024, },
	{ .blen = 2048,	.plen = 2048, },
	{ .blen = 4096,	.plen = 16, },
	{ .blen = 4096,	.plen = 256, },
	{ .blen = 4096,	.plen = 1024, },
	{ .blen = 4096,	.plen = 4096, },
	{ .blen = 8192,	.plen = 16, },
	{ .blen = 8192,	.plen = 256, },
	{ .blen = 8192,	.plen = 1024, },
	{ .blen = 8192,	.plen = 4096, },
	{ .blen = 8192,	.plen = 8192, },

	/* End marker */
	{  .blen = 0,	.plen = 0, }
};

static struct hash_speed hash_speed_template_16[] = {
	{ .blen = 16,	.plen = 16,	.klen = 16, },
	{ .blen = 64,	.plen = 16,	.klen = 16, },
	{ .blen = 64,	.plen = 64,	.klen = 16, },
	{ .blen = 256,	.plen = 16,	.klen = 16, },
	{ .blen = 256,	.plen = 64,	.klen = 16, },
	{ .blen = 256,	.plen = 256,	.klen = 16, },
	{ .blen = 1024,	.plen = 16,	.klen = 16, },
	{ .blen = 1024,	.plen = 256,	.klen = 16, },
	{ .blen = 1024,	.plen = 1024,	.klen = 16, },
	{ .blen = 2048,	.plen = 16,	.klen = 16, },
	{ .blen = 2048,	.plen = 256,	.klen = 16, },
	{ .blen = 2048,	.plen = 1024,	.klen = 16, },
	{ .blen = 2048,	.plen = 2048,	.klen = 16, },
	{ .blen = 4096,	.plen = 16,	.klen = 16, },
	{ .blen = 4096,	.plen = 256,	.klen = 16, },
	{ .blen = 4096,	.plen = 1024,	.klen = 16, },
	{ .blen = 4096,	.plen = 4096,	.klen = 16, },
	{ .blen = 8192,	.plen = 16,	.klen = 16, },
	{ .blen = 8192,	.plen = 256,	.klen = 16, },
	{ .blen = 8192,	.plen = 1024,	.klen = 16, },
	{ .blen = 8192,	.plen = 4096,	.klen = 16, },
	{ .blen = 8192,	.plen = 8192,	.klen = 16, },

	/* End marker */
	{  .blen = 0,	.plen = 0,	.klen = 0, }
};

static struct hash_speed poly1305_speed_template[] = {
	{ .blen = 96,	.plen = 16, },
	{ .blen = 96,	.plen = 32, },
	{ .blen = 96,	.plen = 96, },
	{ .blen = 288,	.plen = 16, },
	{ .blen = 288,	.plen = 32, },
	{ .blen = 288,	.plen = 288, },
	{ .blen = 1056,	.plen = 32, },
	{ .blen = 1056,	.plen = 1056, },
	{ .blen = 2080,	.plen = 32, },
	{ .blen = 2080,	.plen = 2080, },
	{ .blen = 4128,	.plen = 4128, },
	{ .blen = 8224,	.plen = 8224, },

	/* End marker */
	{  .blen = 0,	.plen = 0, }
};

#endif	/* _CRYPTO_TCRYPT_H */
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