cxl: sysfs support for guests
Filter out a few adapter parameters which don't make sense in a guest.
Document the changes.
Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c
index c0bca59..0e289c2 100644
--- a/drivers/misc/cxl/native.c
+++ b/drivers/misc/cxl/native.c
@@ -967,6 +967,12 @@
return (cxl_p1n_read(afu, CXL_PSL_SCNTL_An) == ~0ULL);
}
+static bool native_support_attributes(const char *attr_name,
+ enum cxl_attrs type)
+{
+ return true;
+}
+
static int native_afu_cr_read64(struct cxl_afu *afu, int cr, u64 off, u64 *out)
{
if (unlikely(!cxl_ops->link_ok(afu->adapter)))
@@ -1026,6 +1032,7 @@
.ack_irq = native_ack_irq,
.attach_process = native_attach_process,
.detach_process = native_detach_process,
+ .support_attributes = native_support_attributes,
.link_ok = cxl_adapter_link_ok,
.release_afu = cxl_pci_release_afu,
.afu_read_err_buffer = cxl_pci_afu_read_err_buffer,