diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-04-21 12:44:49 -0500 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-04-30 15:19:33 +1000 |
| commit | 97f9ac3db6612f14ac0c509e1a63ce14fd4cc0eb (patch) | |
| tree | da529da36498fa04b6ffb14f8876818d305378a0 /include/linux/psp-sev.h | |
| parent | 3c2214b6027ff37945799de717c417212e1a8c54 (diff) | |
crypto: ccp - Add support for SEV-ES to the PSP driver
To provide support for SEV-ES, the hypervisor must provide an area of
memory to the PSP. Once this Trusted Memory Region (TMR) is provided to
the PSP, the contents of this area of memory are no longer available to
the x86.
Update the PSP driver to allocate a 1MB region for the TMR that is 1MB
aligned and then provide it to the PSP through the SEV INIT command.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux/psp-sev.h')
| -rw-r--r-- | include/linux/psp-sev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index 5167bf2bfc75..7fbc8679145c 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -100,6 +100,8 @@ struct sev_data_init { u32 tmr_len; /* In */ } __packed; +#define SEV_INIT_FLAGS_SEV_ES 0x01 + /** * struct sev_data_pek_csr - PEK_CSR command parameters * |