| commit | 46a334a98f585ef78d51d8f5736596887bdd7f54 | [log] [tgz] |
|---|---|---|
| author | Tom Lendacky <thomas.lendacky@amd.com> | Mon Jan 23 16:53:08 2023 -0600 |
| committer | Herbert Xu <herbert@gondor.apana.org.au> | Fri Feb 03 12:54:54 2023 +0800 |
| tree | e2ad29fc38b189e5b18cde8cc2a3749bcb41397a | |
| parent | 7ce515e636ec1807723c30fd3a6181b4ccac6ec6 [diff] |
crypto: ccp - Flush the SEV-ES TMR memory before giving it to firmware
Perform a cache flush on the SEV-ES TMR memory after allocation to prevent
any possibility of the firmware encountering an error should dirty cache
lines be present. Use clflush_cache_range() to flush the SEV-ES TMR memory.
Fixes: 97f9ac3db661 ("crypto: ccp - Add support for SEV-ES to the PSP driver")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>