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torvaldstorvalds
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Merge tag 'powerpc-6.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman: - Fix link errors in new aes-gcm-p10 code when built-in with other drivers - Limit number of TCEs passed to H_STUFF_TCE hcall as per spec - Use KSYM_NAME_LEN in xmon array size to avoid possible OOB write Thanks to Gaurav Batra and Maninder Singh Vishal Chourasia. * tag 'powerpc-6.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/xmon: Use KSYM_NAME_LEN in array size powerpc/iommu: Limit number of TCEs to 512 for H_STUFF_TCE hcall powerpc/crypto: Fix aes-gcm-p10 link errors
2 parents e5282a7 + 719dfd5 commit 9455b4b

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6 files changed

+33
-24
lines changed

6 files changed

+33
-24
lines changed

‎arch/powerpc/crypto/Makefile

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -22,15 +22,15 @@ sha1-ppc-spe-y := sha1-spe-asm.o sha1-spe-glue.o
2222
sha256-ppc-spe-y := sha256-spe-asm.o sha256-spe-glue.o
2323
crc32c-vpmsum-y := crc32c-vpmsum_asm.o crc32c-vpmsum_glue.o
2424
crct10dif-vpmsum-y := crct10dif-vpmsum_asm.o crct10dif-vpmsum_glue.o
25-
aes-gcm-p10-crypto-y := aes-gcm-p10-glue.o aes-gcm-p10.o ghashp8-ppc.o aesp8-ppc.o
25+
aes-gcm-p10-crypto-y := aes-gcm-p10-glue.o aes-gcm-p10.o ghashp10-ppc.o aesp10-ppc.o
2626

2727
quiet_cmd_perl = PERL $@
2828
cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@
2929

30-
targets += aesp8-ppc.S ghashp8-ppc.S
30+
targets += aesp10-ppc.S ghashp10-ppc.S
3131

32-
$(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE
32+
$(obj)/aesp10-ppc.S $(obj)/ghashp10-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE
3333
$(call if_changed,perl)
3434

35-
OBJECT_FILES_NON_STANDARD_aesp8-ppc.o := y
36-
OBJECT_FILES_NON_STANDARD_ghashp8-ppc.o := y
35+
OBJECT_FILES_NON_STANDARD_aesp10-ppc.o := y
36+
OBJECT_FILES_NON_STANDARD_ghashp10-ppc.o := y

‎arch/powerpc/crypto/aes-gcm-p10-glue.c

Lines changed: 9 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -30,15 +30,15 @@ MODULE_AUTHOR("Danny Tsen <dtsen@linux.ibm.com");
3030
MODULE_LICENSE("GPL v2");
3131
MODULE_ALIAS_CRYPTO("aes");
3232

33-
asmlinkage int aes_p8_set_encrypt_key(const u8 *userKey, const int bits,
33+
asmlinkage int aes_p10_set_encrypt_key(const u8 *userKey, const int bits,
3434
void *key);
35-
asmlinkage void aes_p8_encrypt(const u8 *in, u8 *out, const void *key);
35+
asmlinkage void aes_p10_encrypt(const u8 *in, u8 *out, const void *key);
3636
asmlinkage void aes_p10_gcm_encrypt(u8 *in, u8 *out, size_t len,
3737
void *rkey, u8 *iv, void *Xi);
3838
asmlinkage void aes_p10_gcm_decrypt(u8 *in, u8 *out, size_t len,
3939
void *rkey, u8 *iv, void *Xi);
4040
asmlinkage void gcm_init_htable(unsigned char htable[256], unsigned char Xi[16]);
41-
asmlinkage void gcm_ghash_p8(unsigned char *Xi, unsigned char *Htable,
41+
asmlinkage void gcm_ghash_p10(unsigned char *Xi, unsigned char *Htable,
4242
unsigned char *aad, unsigned int alen);
4343

4444
struct aes_key {
@@ -93,7 +93,7 @@ static void set_aad(struct gcm_ctx *gctx, struct Hash_ctx *hash,
9393
gctx->aadLen = alen;
9494
i = alen & ~0xf;
9595
if (i) {
96-
gcm_ghash_p8(nXi, hash->Htable+32, aad, i);
96+
gcm_ghash_p10(nXi, hash->Htable+32, aad, i);
9797
aad += i;
9898
alen -= i;
9999
}
@@ -102,7 +102,7 @@ static void set_aad(struct gcm_ctx *gctx, struct Hash_ctx *hash,
102102
nXi[i] ^= aad[i];
103103

104104
memset(gctx->aad_hash, 0, 16);
105-
gcm_ghash_p8(gctx->aad_hash, hash->Htable+32, nXi, 16);
105+
gcm_ghash_p10(gctx->aad_hash, hash->Htable+32, nXi, 16);
106106
} else {
107107
memcpy(gctx->aad_hash, nXi, 16);
108108
}
@@ -115,7 +115,7 @@ static void gcmp10_init(struct gcm_ctx *gctx, u8 *iv, unsigned char *rdkey,
115115
{
116116
__be32 counter = cpu_to_be32(1);
117117

118-
aes_p8_encrypt(hash->H, hash->H, rdkey);
118+
aes_p10_encrypt(hash->H, hash->H, rdkey);
119119
set_subkey(hash->H);
120120
gcm_init_htable(hash->Htable+32, hash->H);
121121

@@ -126,7 +126,7 @@ static void gcmp10_init(struct gcm_ctx *gctx, u8 *iv, unsigned char *rdkey,
126126
/*
127127
* Encrypt counter vector as iv tag and increment counter.
128128
*/
129-
aes_p8_encrypt(iv, gctx->ivtag, rdkey);
129+
aes_p10_encrypt(iv, gctx->ivtag, rdkey);
130130

131131
counter = cpu_to_be32(2);
132132
*((__be32 *)(iv+12)) = counter;
@@ -160,7 +160,7 @@ static void finish_tag(struct gcm_ctx *gctx, struct Hash_ctx *hash, int len)
160160
/*
161161
* hash (AAD len and len)
162162
*/
163-
gcm_ghash_p8(hash->Htable, hash->Htable+32, aclen, 16);
163+
gcm_ghash_p10(hash->Htable, hash->Htable+32, aclen, 16);
164164

165165
for (i = 0; i < 16; i++)
166166
hash->Htable[i] ^= gctx->ivtag[i];
@@ -192,7 +192,7 @@ static int p10_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
192192
int ret;
193193

194194
vsx_begin();
195-
ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
195+
ret = aes_p10_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
196196
vsx_end();
197197

198198
return ret ? -EINVAL : 0;

‎arch/powerpc/crypto/aesp8-ppc.pl renamed to ‎arch/powerpc/crypto/aesp10-ppc.pl

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -110,7 +110,7 @@
110110
open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
111111

112112
$FRAME=8*$SIZE_T;
113-
$prefix="aes_p8";
113+
$prefix="aes_p10";
114114

115115
$sp="r1";
116116
$vrsave="r12";

‎arch/powerpc/crypto/ghashp8-ppc.pl renamed to ‎arch/powerpc/crypto/ghashp10-ppc.pl

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -64,7 +64,7 @@
6464
6565
.text
6666
67-
.globl .gcm_init_p8
67+
.globl .gcm_init_p10
6868
lis r0,0xfff0
6969
li r8,0x10
7070
mfspr $vrsave,256
@@ -110,7 +110,7 @@
110110
.long 0
111111
.byte 0,12,0x14,0,0,0,2,0
112112
.long 0
113-
.size .gcm_init_p8,.-.gcm_init_p8
113+
.size .gcm_init_p10,.-.gcm_init_p10
114114
115115
.globl .gcm_init_htable
116116
lis r0,0xfff0
@@ -237,7 +237,7 @@
237237
.long 0
238238
.size .gcm_init_htable,.-.gcm_init_htable
239239
240-
.globl .gcm_gmult_p8
240+
.globl .gcm_gmult_p10
241241
lis r0,0xfff8
242242
li r8,0x10
243243
mfspr $vrsave,256
@@ -283,9 +283,9 @@
283283
.long 0
284284
.byte 0,12,0x14,0,0,0,2,0
285285
.long 0
286-
.size .gcm_gmult_p8,.-.gcm_gmult_p8
286+
.size .gcm_gmult_p10,.-.gcm_gmult_p10
287287
288-
.globl .gcm_ghash_p8
288+
.globl .gcm_ghash_p10
289289
lis r0,0xfff8
290290
li r8,0x10
291291
mfspr $vrsave,256
@@ -350,7 +350,7 @@
350350
.long 0
351351
.byte 0,12,0x14,0,0,0,4,0
352352
.long 0
353-
.size .gcm_ghash_p8,.-.gcm_ghash_p8
353+
.size .gcm_ghash_p10,.-.gcm_ghash_p10
354354
355355
.asciz "GHASH for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>"
356356
.align 2

‎arch/powerpc/platforms/pseries/iommu.c

Lines changed: 11 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -317,13 +317,22 @@ static void tce_free_pSeriesLP(unsigned long liobn, long tcenum, long tceshift,
317317
static void tce_freemulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages)
318318
{
319319
u64 rc;
320+
long rpages = npages;
321+
unsigned long limit;
320322

321323
if (!firmware_has_feature(FW_FEATURE_STUFF_TCE))
322324
return tce_free_pSeriesLP(tbl->it_index, tcenum,
323325
tbl->it_page_shift, npages);
324326

325-
rc = plpar_tce_stuff((u64)tbl->it_index,
326-
(u64)tcenum << tbl->it_page_shift, 0, npages);
327+
do {
328+
limit = min_t(unsigned long, rpages, 512);
329+
330+
rc = plpar_tce_stuff((u64)tbl->it_index,
331+
(u64)tcenum << tbl->it_page_shift, 0, limit);
332+
333+
rpages -= limit;
334+
tcenum += limit;
335+
} while (rpages > 0 && !rc);
327336

328337
if (rc && printk_ratelimit()) {
329338
printk("tce_freemulti_pSeriesLP: plpar_tce_stuff failed\n");

‎arch/powerpc/xmon/xmon.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -88,7 +88,7 @@ static unsigned long ndump = 64;
8888
static unsigned long nidump = 16;
8989
static unsigned long ncsum = 4096;
9090
static int termch;
91-
static char tmpstr[128];
91+
static char tmpstr[KSYM_NAME_LEN];
9292
static int tracing_enabled;
9393

9494
static long bus_error_jmp[JMP_BUF_LEN];

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