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crypto: ccp - Move direct access to some PSP registers out of TEE

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With the PSP mailbox registers supporting more than just TEE, access to
them must be maintained and serialized by the PSP device support. Remove
TEE support direct access and create an interface in the PSP support
where the register access can be controlled/serialized.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Tested-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tom Lendacky
2023-09-07 13:48:42 -05:00
committed by Herbert Xu
parent b58a36008b
commit 949a0c8dd3
6 changed files with 104 additions and 58 deletions
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3
drivers/crypto/ccp/sp-dev.h
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@@ -71,6 +71,9 @@ struct psp_vdata {
const struct sev_vdata *sev;
const struct tee_vdata *tee;
const struct platform_access_vdata *platform_access;
const unsigned int cmdresp_reg;
const unsigned int cmdbuff_addr_lo_reg;
const unsigned int cmdbuff_addr_hi_reg;
const unsigned int feature_reg;
const unsigned int inten_reg;
const unsigned int intsts_reg;