iommu/iommu-debug: Show secure VMID in attach info
It can be useful to know a domain's secure VMID value. Add this
information to the attach info debugfs file.
Change-Id: Ic8a73000b8337639f95376b13ef58a0e2a089dde
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
diff --git a/drivers/iommu/iommu-debug.c b/drivers/iommu/iommu-debug.c
index 2cf1b28..0827a49 100644
--- a/drivers/iommu/iommu-debug.c
+++ b/drivers/iommu/iommu-debug.c
@@ -22,6 +22,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/uaccess.h>
+#include <soc/qcom/secure_buffer.h>
#ifdef CONFIG_IOMMU_DEBUG_TRACKING
@@ -39,8 +40,19 @@
static int iommu_debug_attachment_info_show(struct seq_file *s, void *ignored)
{
struct iommu_debug_attachment *attach = s->private;
+ int secure_vmid;
seq_printf(s, "Domain: 0x%p\n", attach->domain);
+
+ seq_puts(s, "SECURE_VMID: ");
+ if (iommu_domain_get_attr(attach->domain,
+ DOMAIN_ATTR_SECURE_VMID,
+ &secure_vmid))
+ seq_puts(s, "(Unknown)\n");
+ else
+ seq_printf(s, "%s (0x%x)\n",
+ msm_secure_vmid_to_string(secure_vmid), secure_vmid);
+
return 0;
}