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authorTom Lendacky <thomas.lendacky@amd.com>2020-04-21 20:44:49 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2020-04-30 08:19:33 +0300
commit97f9ac3db6612f14ac0c509e1a63ce14fd4cc0eb (patch)
treeda529da36498fa04b6ffb14f8876818d305378a0 /include/uapi/linux/psp-sev.h
parent3c2214b6027ff37945799de717c417212e1a8c54 (diff)
downloadlinux-97f9ac3db6612f14ac0c509e1a63ce14fd4cc0eb.tar.xz
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/uapi/linux/psp-sev.h')
-rw-r--r--include/uapi/linux/psp-sev.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h
index 0549a5c622bf..91b4c63d5cbf 100644
--- a/include/uapi/linux/psp-sev.h
+++ b/include/uapi/linux/psp-sev.h
@@ -83,6 +83,8 @@ struct sev_user_data_status {
__u32 guest_count; /* Out */
} __packed;
+#define SEV_STATUS_FLAGS_CONFIG_ES 0x0100
+
/**
* struct sev_user_data_pek_csr - PEK_CSR command parameters
*