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| author | Tero Kristo <t-kristo@ti.com> | 2018-02-27 14:30:35 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-03-09 15:45:36 +0100 |
| commit | 065fa2523da83c674d8533144d9c9bac986ccf80 (patch) | |
| tree | 411c080f249ac79b7f0f010d2f8742fab5597594 | |
| parent | crypto: omap-sham - Verify page zone of scatterlists before starting DMA (diff) | |
| download | linux-065fa2523da83c674d8533144d9c9bac986ccf80.tar.xz linux-065fa2523da83c674d8533144d9c9bac986ccf80.zip | |
crypto: omap-crypto - Verify page zone scatterlists before starting DMA
In certain platforms like DRA7xx having memory > 2GB with LPAE enabled
has a constraint that DMA can be done with the initial 2GB and marks it
as ZONE_DMA. But openssl when used with cryptodev does not make sure that
input buffer is DMA capable. So, adding a check to verify if the input
buffer is capable of DMA.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/omap-crypto.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/omap-crypto.c b/drivers/crypto/omap-crypto.c index 23e37779317e..2c42e4b4a6e9 100644 --- a/drivers/crypto/omap-crypto.c +++ b/drivers/crypto/omap-crypto.c @@ -104,6 +104,10 @@ static int omap_crypto_check_sg(struct scatterlist *sg, int total, int bs, return OMAP_CRYPTO_NOT_ALIGNED; if (!IS_ALIGNED(sg->length, bs)) return OMAP_CRYPTO_NOT_ALIGNED; +#ifdef CONFIG_ZONE_DMA + if (page_zonenum(sg_page(sg)) != ZONE_DMA) + return OMAP_CRYPTO_NOT_ALIGNED; +#endif len += sg->length; sg = sg_next(sg); |