[PATCH 3/7] crypto: ccp: Reset TMR size at SNP Shutdown

[Ashish Kalra]

From: Ashish Kalra <ashish.kalra@xxxxxxx>

When SEV-SNP is enabled the TMR needs to be 2MB aligned and 2MB sized,
ensure that TMR size is reset back to default when SNP is shutdown.

Signed-off-by: Ashish Kalra <ashish.kalra@xxxxxxx>
---
 drivers/crypto/ccp/sev-dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index d8673d8836f1..bc121ad9ec26 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -1750,6 +1750,9 @@ static int __sev_snp_shutdown_locked(int *error, bool panic)
 	sev->snp_initialized = false;
 	dev_dbg(sev->dev, "SEV-SNP firmware shutdown\n");
 
+	/* Reset TMR size back to default */
+	sev_es_tmr_size = SEV_TMR_SIZE;
+
 	return ret;
 }
 
-- 
2.34.1