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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/crypto/ccp/psp-dev.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/crypto/ccp/psp-dev.h')
-rw-r--r--drivers/crypto/ccp/psp-dev.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/psp-dev.h b/drivers/crypto/ccp/psp-dev.h
new file mode 100644
index 0000000000..8a4de69399
--- /dev/null
+++ b/drivers/crypto/ccp/psp-dev.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AMD Platform Security Processor (PSP) interface driver
+ *
+ * Copyright (C) 2017-2019 Advanced Micro Devices, Inc.
+ *
+ * Author: Brijesh Singh <brijesh.singh@amd.com>
+ */
+
+#ifndef __PSP_DEV_H__
+#define __PSP_DEV_H__
+
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/bits.h>
+#include <linux/interrupt.h>
+
+#include "sp-dev.h"
+
+#define MAX_PSP_NAME_LEN 16
+
+extern struct psp_device *psp_master;
+
+typedef void (*psp_irq_handler_t)(int, void *, unsigned int);
+
+struct psp_device {
+ struct list_head entry;
+
+ struct psp_vdata *vdata;
+ char name[MAX_PSP_NAME_LEN];
+
+ struct device *dev;
+ struct sp_device *sp;
+
+ void __iomem *io_regs;
+
+ psp_irq_handler_t sev_irq_handler;
+ void *sev_irq_data;
+
+ void *sev_data;
+ void *tee_data;
+ void *platform_access_data;
+ void *dbc_data;
+
+ unsigned int capability;
+};
+
+void psp_set_sev_irq_handler(struct psp_device *psp, psp_irq_handler_t handler,
+ void *data);
+void psp_clear_sev_irq_handler(struct psp_device *psp);
+
+struct psp_device *psp_get_master_device(void);
+
+#define PSP_CAPABILITY_SEV BIT(0)
+#define PSP_CAPABILITY_TEE BIT(1)
+#define PSP_CAPABILITY_PSP_SECURITY_REPORTING BIT(7)
+
+#define PSP_CAPABILITY_PSP_SECURITY_OFFSET 8
+/*
+ * The PSP doesn't directly store these bits in the capability register
+ * but instead copies them from the results of query command.
+ *
+ * The offsets from the query command are below, and shifted when used.
+ */
+#define PSP_SECURITY_FUSED_PART BIT(0)
+#define PSP_SECURITY_DEBUG_LOCK_ON BIT(2)
+#define PSP_SECURITY_TSME_STATUS BIT(5)
+#define PSP_SECURITY_ANTI_ROLLBACK_STATUS BIT(7)
+#define PSP_SECURITY_RPMC_PRODUCTION_ENABLED BIT(8)
+#define PSP_SECURITY_RPMC_SPIROM_AVAILABLE BIT(9)
+#define PSP_SECURITY_HSP_TPM_AVAILABLE BIT(10)
+#define PSP_SECURITY_ROM_ARMOR_ENFORCED BIT(11)
+
+#endif /* __PSP_DEV_H */