94 lines
2.6 KiB
Diff
94 lines
2.6 KiB
Diff
|
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Yin Fengwei <fengwei.yin@intel.com>
|
||
|
|
Date: Mon, 2 Sep 2019 08:59:03 +0800
|
||
|
|
Subject: [PATCH] vhm ioreq: add debugfs entry to dump the vhm client io range
|
||
|
|
|
||
|
|
For debugging purpose, we may need to check all vhm client io
|
||
|
|
range to make sure it's on good shape.
|
||
|
|
|
||
|
|
We add a interface in debugfs to dump these info for developer
|
||
|
|
to check the client io range info.
|
||
|
|
|
||
|
|
Tracked-On: projectacrn/acrn-hypervisor#3634
|
||
|
|
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
|
||
|
|
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
|
||
|
|
---
|
||
|
|
drivers/vhm/vhm_ioreq.c | 53 +++++++++++++++++++++++++++++++++++++++++
|
||
|
|
1 file changed, 53 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/drivers/vhm/vhm_ioreq.c b/drivers/vhm/vhm_ioreq.c
|
||
|
|
index c8cc09766610..ef89bf827270 100644
|
||
|
|
--- a/drivers/vhm/vhm_ioreq.c
|
||
|
|
+++ b/drivers/vhm/vhm_ioreq.c
|
||
|
|
@@ -61,6 +61,7 @@
|
||
|
|
#include <linux/mm.h>
|
||
|
|
#include <linux/poll.h>
|
||
|
|
#include <linux/delay.h>
|
||
|
|
+#include <linux/debugfs.h>
|
||
|
|
#include <linux/vhm/acrn_common.h>
|
||
|
|
#include <linux/vhm/acrn_vhm_ioreq.h>
|
||
|
|
#include <linux/vhm/vhm_vm_mngt.h>
|
||
|
|
@@ -1103,7 +1104,59 @@ void acrn_ioreq_free(struct vhm_vm *vm)
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
+static struct dentry *vhm_debugfs_dir;
|
||
|
|
+
|
||
|
|
+static void vhm_ioclient_range_show_one(struct seq_file *s,
|
||
|
|
+ struct ioreq_client *client)
|
||
|
|
+{
|
||
|
|
+ struct list_head *pos;
|
||
|
|
+
|
||
|
|
+ seq_printf(s, " client: %s, id: %d\n",
|
||
|
|
+ client->name, client->id);
|
||
|
|
+
|
||
|
|
+ spin_lock_bh(&client->range_lock);
|
||
|
|
+ list_for_each(pos, &client->range_list) {
|
||
|
|
+ struct ioreq_range *range =
|
||
|
|
+ container_of(pos, struct ioreq_range, list);
|
||
|
|
+ seq_printf(s, " io range: type %d, start 0x%lx, end 0x%lx\n",
|
||
|
|
+ range->type, range->start, range->end);
|
||
|
|
+ }
|
||
|
|
+ spin_unlock_bh(&client->range_lock);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+static int vhm_ioclient_range_show(struct seq_file *s, void *data)
|
||
|
|
+{
|
||
|
|
+ struct vhm_vm *vm;
|
||
|
|
+
|
||
|
|
+ read_lock_bh(&vhm_vm_list_lock);
|
||
|
|
+ list_for_each_entry(vm, &vhm_vm_list, list) {
|
||
|
|
+ struct list_head *pos, *tmp;
|
||
|
|
+
|
||
|
|
+ get_vm(vm);
|
||
|
|
+ seq_printf(s, "vm%ld:\n", vm->vmid);
|
||
|
|
+ list_for_each_safe(pos, tmp, &vm->ioreq_client_list) {
|
||
|
|
+ struct ioreq_client *client =
|
||
|
|
+ container_of(pos, struct ioreq_client, list);
|
||
|
|
+
|
||
|
|
+ vhm_ioclient_range_show_one(s, client);
|
||
|
|
+ }
|
||
|
|
+ put_vm(vm);
|
||
|
|
+ }
|
||
|
|
+ read_unlock_bh(&vhm_vm_list_lock);
|
||
|
|
+
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+DEFINE_SHOW_ATTRIBUTE(vhm_ioclient_range);
|
||
|
|
+
|
||
|
|
void acrn_ioreq_driver_init()
|
||
|
|
{
|
||
|
|
idr_init(&idr_client);
|
||
|
|
+ vhm_debugfs_dir = debugfs_create_dir("vhm", NULL);
|
||
|
|
+ debugfs_create_file("ioclient_range", 0444, vhm_debugfs_dir, NULL,
|
||
|
|
+ &vhm_ioclient_range_fops);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+void acrn_ioreq_driver_deinit(void)
|
||
|
|
+{
|
||
|
|
+ debugfs_remove_recursive(vhm_debugfs_dir);
|
||
|
|
}
|
||
|
|
--
|
||
|
|
https://clearlinux.org
|
||
|
|
|