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crypto: ccp - set max RSA modulus size for v3 platform devices as well

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commit 11548f5a5747813ff84bed6f2ea01100053b0d8d upstream.

AMD Seattle incorporates a non-PCI version of the v3 CCP crypto
accelerator, and this version was left behind when the maximum
RSA modulus size was parameterized in order to support v5 hardware
which supports larger moduli than v3 hardware does. Due to this
oversight, RSA acceleration no longer works at all on these systems.

Fix this by setting the .rsamax property to the appropriate value
for v3 platform hardware.

Fixes: e28c190db6 ("csrypto: ccp - Expand RSA support for a v5 ccp")
Cc: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ard Biesheuvel 2019-11-27 13:01:36 +01:00 committed by Greg Kroah-Hartman
parent a1e311beba
commit f28e641be5
1 changed files with 1 additions and 0 deletions
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drivers/crypto/ccp/ccp-dev-v3.c
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@ -590,6 +590,7 @@ const struct ccp_vdata ccpv3_platform = {
.setup = NULL,
.perform = &ccp3_actions,
.offset = 0,
.rsamax = CCP_RSA_MAX_WIDTH,
};
const struct ccp_vdata ccpv3 = {