linux-kernel - [PATCH v3] crypto: ccp: Annotate SEV Firmware file names

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Message-Id: <20210423150052.25080-1-joro@8bytes.org>
Date:   Fri, 23 Apr 2021 17:00:52 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Brijesh Singh <brijesh.singh@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        John Allen <john.allen@....com>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>, davem@...emloft.net,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        joro@...tes.org, Joerg Roedel <jroedel@...e.de>,
        stable@...r.kernel.org
Subject: [PATCH v3] crypto: ccp: Annotate SEV Firmware file names

From: Joerg Roedel <jroedel@...e.de>

Annotate the firmware files CCP might need using MODULE_FIRMWARE().
This will get them included into an initrd when CCP is also included
there. Otherwise the CCP module will not find its firmware when loaded
before the root-fs is mounted.
This can cause problems when the pre-loaded SEV firmware is too old to
support current SEV and SEV-ES virtualization features.

Cc: stable@...r.kernel.org
Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
 drivers/crypto/ccp/sev-dev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index cb9b4c4e371e..675ff925a59d 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -42,6 +42,10 @@ static int psp_probe_timeout = 5;
 module_param(psp_probe_timeout, int, 0644);
 MODULE_PARM_DESC(psp_probe_timeout, " default timeout value, in seconds, during PSP device probe");
 
+MODULE_FIRMWARE("amd/amd_sev_fam17h_model0xh.sbin"); /* 1st gen EPYC */
+MODULE_FIRMWARE("amd/amd_sev_fam17h_model3xh.sbin"); /* 2nd gen EPYC */
+MODULE_FIRMWARE("amd/amd_sev_fam19h_model0xh.sbin"); /* 3rd gen EPYC */
+
 static bool psp_dead;
 static int psp_timeout;
 
-- 
2.31.1