In preparation for new + common TSM (TEE Security Manager)
infrastructure, namespace the TSM report symbols in tsm.h with an
_REPORT suffix to differentiate them from other incoming tsm work.
Cc: Yilun Xu <yilun.xu@xxxxxxxxx>
Cc: Samuel Ortiz <sameo@xxxxxxxxxxxx>
Cc: Alexey Kardashevskiy <aik@xxxxxxx>
Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>
Cc: Sami Mujawar <sami.mujawar@xxxxxxx>
Cc: Steven Price <steven.price@xxxxxxx>
Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
Documentation/ABI/testing/configfs-tsm-report | 0
MAINTAINERS | 2 +
drivers/virt/coco/arm-cca-guest/arm-cca-guest.c | 8 +++---
drivers/virt/coco/sev-guest/sev-guest.c | 12 ++++-----
drivers/virt/coco/tdx-guest/tdx-guest.c | 8 +++---
drivers/virt/coco/tsm.c | 32 ++++++++++++-----------
include/linux/tsm.h | 22 ++++++++--------
7 files changed, 42 insertions(+), 42 deletions(-)
rename Documentation/ABI/testing/{configfs-tsm => configfs-tsm-report} (100%)
diff --git a/Documentation/ABI/testing/configfs-tsm b/Documentation/ABI/testing/configfs-tsm-report
similarity index 100%
rename from Documentation/ABI/testing/configfs-tsm
rename to Documentation/ABI/testing/configfs-tsm-report
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e930c7a58b1..53f04c499705 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23842,7 +23842,7 @@ TRUSTED SECURITY MODULE (TSM) ATTESTATION REPORTS
M: Dan Williams <dan.j.williams@xxxxxxxxx>
L: linux-coco@xxxxxxxxxxxxxxx
S: Maintained
-F: Documentation/ABI/testing/configfs-tsm
+F: Documentation/ABI/testing/configfs-tsm-report
F: drivers/virt/coco/tsm.c
F: include/linux/tsm.h
diff --git a/drivers/virt/coco/arm-cca-guest/arm-cca-guest.c b/drivers/virt/coco/arm-cca-guest/arm-cca-guest.c
index 488153879ec9..63b9fdb843fa 100644
--- a/drivers/virt/coco/arm-cca-guest/arm-cca-guest.c
+++ b/drivers/virt/coco/arm-cca-guest/arm-cca-guest.c
@@ -95,7 +95,7 @@ static int arm_cca_report_new(struct tsm_report *report, void *data)
struct arm_cca_token_info info;
void *buf;
u8 *token __free(kvfree) = NULL;
- struct tsm_desc *desc = &report->desc;
+ struct tsm_report_desc *desc = &report->desc;
if (desc->inblob_len < 32 || desc->inblob_len > 64)
return -EINVAL;
@@ -180,7 +180,7 @@ static int arm_cca_report_new(struct tsm_report *report, void *data)
return ret;
}
-static const struct tsm_ops arm_cca_tsm_ops = {
+static const struct tsm_report_ops arm_cca_tsm_ops = {
.name = KBUILD_MODNAME,
.report_new = arm_cca_report_new,
};
@@ -201,7 +201,7 @@ static int __init arm_cca_guest_init(void)
if (!is_realm_world())
return -ENODEV;
- ret = tsm_register(&arm_cca_tsm_ops, NULL);
+ ret = tsm_report_register(&arm_cca_tsm_ops, NULL);
if (ret < 0)
pr_err("Error %d registering with TSM\n", ret);
@@ -215,7 +215,7 @@ module_init(arm_cca_guest_init);
*/
static void __exit arm_cca_guest_exit(void)
{
- tsm_unregister(&arm_cca_tsm_ops);
+ tsm_report_unregister(&arm_cca_tsm_ops);
}
module_exit(arm_cca_guest_exit);
diff --git a/drivers/virt/coco/sev-guest/sev-guest.c b/drivers/virt/coco/sev-guest/sev-guest.c
index fca5c45ed5cd..7eedde61589c 100644
--- a/drivers/virt/coco/sev-guest/sev-guest.c
+++ b/drivers/virt/coco/sev-guest/sev-guest.c
@@ -701,7 +701,7 @@ struct snp_msg_cert_entry {
static int sev_svsm_report_new(struct tsm_report *report, void *data)
{
unsigned int rep_len, man_len, certs_len;
- struct tsm_desc *desc = &report->desc;
+ struct tsm_report_desc *desc = &report->desc;
struct svsm_attest_call ac = {};
unsigned int retry_count;
void *rep, *man, *certs;
@@ -836,7 +836,7 @@ static int sev_svsm_report_new(struct tsm_report *report, void *data)
static int sev_report_new(struct tsm_report *report, void *data)
{
struct snp_msg_cert_entry *cert_table;
- struct tsm_desc *desc = &report->desc;
+ struct tsm_report_desc *desc = &report->desc;
struct snp_guest_dev *snp_dev = data;
struct snp_msg_report_resp_hdr hdr;
const u32 report_size = SZ_4K;
@@ -965,7 +965,7 @@ static bool sev_report_bin_attr_visible(int n)
return false;
}
-static struct tsm_ops sev_tsm_ops = {
+static struct tsm_report_ops sev_tsm_report_ops = {
.name = KBUILD_MODNAME,
.report_new = sev_report_new,
.report_attr_visible = sev_report_attr_visible,
@@ -974,7 +974,7 @@ static struct tsm_ops sev_tsm_ops = {
static void unregister_sev_tsm(void *data)
{
- tsm_unregister(&sev_tsm_ops);
+ tsm_report_unregister(&sev_tsm_report_ops);
}
static int __init sev_guest_probe(struct platform_device *pdev)
@@ -1062,9 +1062,9 @@ static int __init sev_guest_probe(struct platform_device *pdev)
mdesc->input.data_gpa = __pa(mdesc->certs_data);
/* Set the privlevel_floor attribute based on the vmpck_id */
- sev_tsm_ops.privlevel_floor = vmpck_id;
+ sev_tsm_report_ops.privlevel_floor = vmpck_id;
- ret = tsm_register(&sev_tsm_ops, snp_dev);
+ ret = tsm_report_register(&sev_tsm_report_ops, snp_dev);
if (ret)
goto e_free_cert_data;
diff --git a/drivers/virt/coco/tdx-guest/tdx-guest.c b/drivers/virt/coco/tdx-guest/tdx-guest.c
index d7db6c824e13..66ea09207a7c 100644
--- a/drivers/virt/coco/tdx-guest/tdx-guest.c
+++ b/drivers/virt/coco/tdx-guest/tdx-guest.c
@@ -163,7 +163,7 @@ static int tdx_report_new(struct tsm_report *report, void *data)
{
u8 *buf, *reportdata = NULL, *tdreport = NULL;
struct tdx_quote_buf *quote_buf = quote_data;
- struct tsm_desc *desc = &report->desc;
+ struct tsm_report_desc *desc = &report->desc;
int ret;
u64 err;
@@ -299,7 +299,7 @@ static const struct x86_cpu_id tdx_guest_ids[] = {
};
MODULE_DEVICE_TABLE(x86cpu, tdx_guest_ids);
-static const struct tsm_ops tdx_tsm_ops = {
+static const struct tsm_report_ops tdx_tsm_ops = {
.name = KBUILD_MODNAME,
.report_new = tdx_report_new,
.report_attr_visible = tdx_report_attr_visible,
@@ -324,7 +324,7 @@ static int __init tdx_guest_init(void)
goto free_misc;
}
- ret = tsm_register(&tdx_tsm_ops, NULL);
+ ret = tsm_report_register(&tdx_tsm_ops, NULL);
if (ret)
goto free_quote;
@@ -341,7 +341,7 @@ module_init(tdx_guest_init);
static void __exit tdx_guest_exit(void)
{
- tsm_unregister(&tdx_tsm_ops);
+ tsm_report_unregister(&tdx_tsm_ops);
free_quote_buf(quote_data);
misc_deregister(&tdx_misc_dev);
}
diff --git a/drivers/virt/coco/tsm.c b/drivers/virt/coco/tsm.c
index 9432d4e303f1..bcb515b50c68 100644
--- a/drivers/virt/coco/tsm.c
+++ b/drivers/virt/coco/tsm.c
@@ -13,7 +13,7 @@
#include <linux/configfs.h>
static struct tsm_provider {
- const struct tsm_ops *ops;
+ const struct tsm_report_ops *ops;
void *data;
} provider;
static DECLARE_RWSEM(tsm_rwsem);
@@ -98,7 +98,7 @@ static ssize_t tsm_report_privlevel_store(struct config_item *cfg,
* SEV-SNP GHCB) and a minimum of a TSM selected floor value no less
* than 0.
*/
- if (provider.ops->privlevel_floor > val || val > TSM_PRIVLEVEL_MAX)
+ if (provider.ops->privlevel_floor > val || val > TSM_REPORT_PRIVLEVEL_MAX)
return -EINVAL;
guard(rwsem_write)(&tsm_rwsem);
@@ -202,7 +202,7 @@ static ssize_t tsm_report_inblob_write(struct config_item *cfg,
memcpy(report->desc.inblob, buf, count);
return count;
}
-CONFIGFS_BIN_ATTR_WO(tsm_report_, inblob, NULL, TSM_INBLOB_MAX);
+CONFIGFS_BIN_ATTR_WO(tsm_report_, inblob, NULL, TSM_REPORT_INBLOB_MAX);
static ssize_t tsm_report_generation_show(struct config_item *cfg, char *buf)
{
@@ -272,7 +272,7 @@ static ssize_t tsm_report_read(struct tsm_report *report, void *buf,
size_t count, enum tsm_data_select select)
{
struct tsm_report_state *state = to_state(report);
- const struct tsm_ops *ops;
+ const struct tsm_report_ops *ops;
ssize_t rc;
/* try to read from the existing report if present and valid... */
@@ -314,7 +314,7 @@ static ssize_t tsm_report_outblob_read(struct config_item *cfg, void *buf,
return tsm_report_read(report, buf, count, TSM_REPORT);
}
-CONFIGFS_BIN_ATTR_RO(tsm_report_, outblob, NULL, TSM_OUTBLOB_MAX);
+CONFIGFS_BIN_ATTR_RO(tsm_report_, outblob, NULL, TSM_REPORT_OUTBLOB_MAX);
static ssize_t tsm_report_auxblob_read(struct config_item *cfg, void *buf,
size_t count)
@@ -323,7 +323,7 @@ static ssize_t tsm_report_auxblob_read(struct config_item *cfg, void *buf,
return tsm_report_read(report, buf, count, TSM_CERTS);
}
-CONFIGFS_BIN_ATTR_RO(tsm_report_, auxblob, NULL, TSM_OUTBLOB_MAX);
+CONFIGFS_BIN_ATTR_RO(tsm_report_, auxblob, NULL, TSM_REPORT_OUTBLOB_MAX);
static ssize_t tsm_report_manifestblob_read(struct config_item *cfg, void *buf,
size_t count)
@@ -332,7 +332,7 @@ static ssize_t tsm_report_manifestblob_read(struct config_item *cfg, void *buf,
return tsm_report_read(report, buf, count, TSM_MANIFEST);
}
-CONFIGFS_BIN_ATTR_RO(tsm_report_, manifestblob, NULL, TSM_OUTBLOB_MAX);
+CONFIGFS_BIN_ATTR_RO(tsm_report_, manifestblob, NULL, TSM_REPORT_OUTBLOB_MAX);
static struct configfs_attribute *tsm_report_attrs[] = {
[TSM_REPORT_GENERATION] = &tsm_report_attr_generation,
@@ -448,9 +448,9 @@ static struct configfs_subsystem tsm_configfs = {
.su_mutex = __MUTEX_INITIALIZER(tsm_configfs.su_mutex),
};
-int tsm_register(const struct tsm_ops *ops, void *priv)
+int tsm_report_register(const struct tsm_report_ops *ops, void *priv)
{
- const struct tsm_ops *conflict;
+ const struct tsm_report_ops *conflict;
guard(rwsem_write)(&tsm_rwsem);
conflict = provider.ops;
@@ -463,9 +463,9 @@ int tsm_register(const struct tsm_ops *ops, void *priv)
provider.data = priv;
return 0;
}
-EXPORT_SYMBOL_GPL(tsm_register);
+EXPORT_SYMBOL_GPL(tsm_report_register);
-int tsm_unregister(const struct tsm_ops *ops)
+int tsm_report_unregister(const struct tsm_report_ops *ops)
{
guard(rwsem_write)(&tsm_rwsem);
if (ops != provider.ops)
@@ -474,11 +474,11 @@ int tsm_unregister(const struct tsm_ops *ops)
provider.data = NULL;
return 0;
}
-EXPORT_SYMBOL_GPL(tsm_unregister);
+EXPORT_SYMBOL_GPL(tsm_report_unregister);
static struct config_group *tsm_report_group;
-static int __init tsm_init(void)
+static int __init tsm_report_init(void)
{
struct config_group *root = &tsm_configfs.su_group;
struct config_group *tsm;
@@ -499,14 +499,14 @@ static int __init tsm_init(void)
return 0;
}
-module_init(tsm_init);
+module_init(tsm_report_init);
-static void __exit tsm_exit(void)
+static void __exit tsm_report_exit(void)
{
configfs_unregister_default_group(tsm_report_group);
configfs_unregister_subsystem(&tsm_configfs);
}
-module_exit(tsm_exit);
+module_exit(tsm_report_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Provide Trusted Security Module attestation reports via configfs");
diff --git a/include/linux/tsm.h b/include/linux/tsm.h
index 11b0c525be30..431054810dca 100644
--- a/include/linux/tsm.h
+++ b/include/linux/tsm.h
@@ -6,17 +6,17 @@
#include <linux/types.h>
#include <linux/uuid.h>
-#define TSM_INBLOB_MAX 64
-#define TSM_OUTBLOB_MAX SZ_32K
+#define TSM_REPORT_INBLOB_MAX 64
+#define TSM_REPORT_OUTBLOB_MAX SZ_32K
/*
* Privilege level is a nested permission concept to allow confidential
* guests to partition address space, 4-levels are supported.
*/
-#define TSM_PRIVLEVEL_MAX 3
+#define TSM_REPORT_PRIVLEVEL_MAX 3
/**
- * struct tsm_desc - option descriptor for generating tsm report blobs
+ * struct tsm_report_desc - option descriptor for generating tsm report blobs
* @privlevel: optional privilege level to associate with @outblob
* @inblob_len: sizeof @inblob
* @inblob: arbitrary input data
@@ -24,10 +24,10 @@
* @service_guid: optional service-provider service guid to attest
* @service_manifest_version: optional service-provider service manifest version requested
*/
-struct tsm_desc {
+struct tsm_report_desc {
unsigned int privlevel;
size_t inblob_len;
- u8 inblob[TSM_INBLOB_MAX];
+ u8 inblob[TSM_REPORT_INBLOB_MAX];
char *service_provider;
guid_t service_guid;
unsigned int service_manifest_version;
@@ -44,7 +44,7 @@ struct tsm_desc {
* @manifestblob: (optional) manifest data associated with the report
*/
struct tsm_report {
- struct tsm_desc desc;
+ struct tsm_report_desc desc;
size_t outblob_len;
u8 *outblob;
size_t auxblob_len;
@@ -88,7 +88,7 @@ enum tsm_bin_attr_index {
};
/**
- * struct tsm_ops - attributes and operations for tsm instances
+ * struct tsm_report_ops - attributes and operations for tsm_report instances
* @name: tsm id reflected in /sys/kernel/config/tsm/report/$report/provider
* @privlevel_floor: convey base privlevel for nested scenarios
* @report_new: Populate @report with the report blob and auxblob
@@ -99,7 +99,7 @@ enum tsm_bin_attr_index {
* Implementation specific ops, only one is expected to be registered at
* a time i.e. only one of "sev-guest", "tdx-guest", etc.
*/
-struct tsm_ops {
+struct tsm_report_ops {
const char *name;
unsigned int privlevel_floor;
int (*report_new)(struct tsm_report *report, void *data);
@@ -107,6 +107,6 @@ struct tsm_ops {
bool (*report_bin_attr_visible)(int n);
};
-int tsm_register(const struct tsm_ops *ops, void *priv);
-int tsm_unregister(const struct tsm_ops *ops);
+int tsm_report_register(const struct tsm_report_ops *ops, void *priv);
+int tsm_report_unregister(const struct tsm_report_ops *ops);
#endif /* __TSM_H */
