Tom Lendacky wrote:
The TSM attestation report support provides multiple configfs attribute[..]
types (both for standard and binary attributes) to allow for additional
attributes to be displayed for SNP as compared to TDX. With the ability
to hide attributes via configfs, consoldate the multiple attribute groups
into a single standard attribute group and a single binary attribute
group. Modify the TDX support to hide the attributes that were previously
"hidden" as a result of registering the selective attribute groups.
Co-developed-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
---
drivers/virt/coco/sev-guest/sev-guest.c | 3 +-
drivers/virt/coco/tdx-guest/tdx-guest.c | 29 ++++++++-
drivers/virt/coco/tsm.c | 82 ++++++++++++-------------
include/linux/tsm.h | 41 ++++++++++---
4 files changed, 102 insertions(+), 53 deletions(-)
diff --git a/drivers/virt/coco/tdx-guest/tdx-guest.c b/drivers/virt/coco/tdx-guest/tdx-guest.c[..]
index 1253bf76b570..964af57f345c 100644
--- a/drivers/virt/coco/tdx-guest/tdx-guest.c
+++ b/drivers/virt/coco/tdx-guest/tdx-guest.c
@@ -249,6 +250,30 @@ static int tdx_report_new(struct tsm_report *report, void *data)
return ret;
}
+static bool tdx_report_attr_visible(struct config_item *item,
+ struct configfs_attribute *attr, int n)
+{
+ switch (n) {
+ case TSM_REPORT_GENERATION:
+ case TSM_REPORT_PROVIDER:
+ return true;
+ }
+
+ return false;
+}
+
+static bool tdx_report_bin_attr_visible(struct config_item *item,
+ struct configfs_bin_attribute *attr, int n)
+{
+ switch (n) {
+ case TSM_REPORT_INBLOB:
+ case TSM_REPORT_OUTBLOB:
+ return true;
+ }
+
+ return false;
+}
Why do these callbacks need @item and @attr?
[..]
+static bool tsm_report_is_visible(struct config_item *item,
+ struct configfs_attribute *attr, int n)
Per the comment on where to find the is_visible() callbacks for a given
item type, I expect the need to pass @item here goes away when this can
assume that there is only one way to have is_visible() invoked for
@attr, right?
Other than that, this conversion looks good to me.