@@ -109,6 +109,13 @@ static void *sev_init_ex_buffer;
*/
static struct sev_data_range_list *snp_range_list;
+static int snp_shutdown_on_panic(struct notifier_block *nb,
+ unsigned long reason, void *arg);
+
+static struct notifier_block snp_panic_notifier = {
+ .notifier_call = snp_shutdown_on_panic,
+};
+
static inline bool sev_version_greater_or_equal(u8 maj, u8 min)
{
struct sev_device *sev = psp_master->sev_data;
@@ -1191,6 +1198,9 @@ static int __sev_snp_init_locked(int *error)
dev_info(sev->dev, "SEV-SNP API:%d.%d build:%d\n", sev->api_major,
sev->api_minor, sev->build);
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &snp_panic_notifier);
+
sev_es_tmr_size = SNP_TMR_SIZE;
return 0;
@@ -1751,6 +1761,9 @@ static int __sev_snp_shutdown_locked(int *error, bool panic)
sev->snp_initialized = false;
dev_dbg(sev->dev, "SEV-SNP firmware shutdown\n");
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &snp_panic_notifier);
+
/* Reset TMR size back to default */
sev_es_tmr_size = SEV_TMR_SIZE;
@@ -2490,10 +2503,6 @@ static int snp_shutdown_on_panic(struct notifier_block *nb,
return NOTIFY_DONE;
}
-static struct notifier_block snp_panic_notifier = {
- .notifier_call = snp_shutdown_on_panic,
-};
-
int sev_issue_cmd_external_user(struct file *filep, unsigned int cmd,
void *data, int *error)
{
@@ -2542,8 +2551,6 @@ void sev_pci_init(void)
dev_info(sev->dev, "SEV%s API:%d.%d build:%d\n", sev->snp_initialized ?
"-SNP" : "", sev->api_major, sev->api_minor, sev->build);
- atomic_notifier_chain_register(&panic_notifier_list,
- &snp_panic_notifier);
return;
err:
@@ -2561,6 +2568,4 @@ void sev_pci_exit(void)
sev_firmware_shutdown(sev);
- atomic_notifier_chain_unregister(&panic_notifier_list,
- &snp_panic_notifier);
}