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Commit 5e991f14 authored by Mitchel Humpherys's avatar Mitchel Humpherys Committed by Patrick Daly
Browse files

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: default avatarMitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: default avatarPatrick Daly <pdaly@codeaurora.org>
parent b7dfda76

drivers/iommu/iommu-debug.c

+12 −0
Original line number Diff line number Diff line
@@ -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 @@ struct iommu_debug_attachment { 
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;

}