---

yaml
---
r: 97539
b: refs/heads/master
c: 61ac7bf
h: refs/heads/master
i:
  97537: 9817799
  97535: bf8f3dd
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3072c379bccfa2844e33103ed9ff530780e660ea
+refs/heads/master: 61ac7bf538db2044d0238fcd87b3d9df59294bf2

trunk/Documentation/lguest/lguest.c

@@ -157,6 +157,9 @@ struct virtqueue
 
 	/* The routine to call when the Guest pings us. */
 	void (*handle_output)(int fd, struct virtqueue *me);
+
+	/* Outstanding buffers */
+	unsigned int inflight;
 };
 
 /* Remember the arguments to the program so we can "reboot" */
@@ -702,6 +705,7 @@ static unsigned get_vq_desc(struct virtqueue *vq,
 			errx(1, "Looped descriptor");
 	} while ((i = next_desc(vq, i)) != vq->vring.num);
 
+	vq->inflight++;
 	return head;
 }
 
@@ -719,15 +723,17 @@ static void add_used(struct virtqueue *vq, unsigned int head, int len)
 	/* Make sure buffer is written before we update index. */
 	wmb();
 	vq->vring.used->idx++;
+	vq->inflight--;
 }
 
 /* This actually sends the interrupt for this virtqueue */
 static void trigger_irq(int fd, struct virtqueue *vq)
 {
 	unsigned long buf[] = { LHREQ_IRQ, vq->config.irq };
 
-	/* If they don't want an interrupt, don't send one. */
-	if (vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
+	/* If they don't want an interrupt, don't send one, unless empty. */
+	if ((vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)
+	    && vq->inflight)
 		return;
 
 	/* Send the Guest an interrupt tell them we used something up. */
@@ -1107,6 +1113,7 @@ static void add_virtqueue(struct device *dev, unsigned int num_descs,
 	vq->next = NULL;
 	vq->last_avail_idx = 0;
 	vq->dev = dev;
+	vq->inflight = 0;
 
 	/* Initialize the configuration. */
 	vq->config.num = num_descs;
@@ -1368,6 +1375,7 @@ static void setup_tun_net(const char *arg)
 
 	/* Tell Guest what MAC address to use. */
 	add_feature(dev, VIRTIO_NET_F_MAC);
+	add_feature(dev, VIRTIO_F_NOTIFY_ON_EMPTY);
 	set_config(dev, sizeof(conf), &conf);
 
 	/* We don't need the socket any more; setup is done. */

trunk/arch/x86/lguest/boot.c

@@ -582,8 +582,9 @@ static void __init lguest_init_IRQ(void)
 		int vector = FIRST_EXTERNAL_VECTOR + i;
 		if (vector != SYSCALL_VECTOR) {
 			set_intr_gate(vector, interrupt[i]);
-			set_irq_chip_and_handler(i, &lguest_irq_controller,
-						 handle_level_irq);
+			set_irq_chip_and_handler_name(i, &lguest_irq_controller,
+						      handle_level_irq,
+						      "level");
 		}
 	}
 	/* This call is required to set up for 4k stacks, where we have

trunk/drivers/block/virtio_blk.c

@@ -260,6 +260,10 @@ static int virtblk_probe(struct virtio_device *vdev)
 	if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
 		blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
 
+	/* If disk is read-only in the host, the guest should obey */
+	if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))
+		set_disk_ro(vblk->disk, 1);
+
 	/* Host must always specify the capacity. */
 	vdev->config->get(vdev, offsetof(struct virtio_blk_config, capacity),
 			  &cap, sizeof(cap));
@@ -311,6 +315,7 @@ static void virtblk_remove(struct virtio_device *vdev)
 	/* Stop all the virtqueues. */
 	vdev->config->reset(vdev);
 
+	del_gendisk(vblk->disk);
 	blk_cleanup_queue(vblk->disk->queue);
 	put_disk(vblk->disk);
 	mempool_destroy(vblk->pool);
@@ -325,7 +330,7 @@ static struct virtio_device_id id_table[] = {
 
 static unsigned int features[] = {
 	VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX,
-	VIRTIO_BLK_F_GEOMETRY,
+	VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO,
 };
 
 static struct virtio_driver virtio_blk = {

trunk/drivers/char/hw_random/Kconfig

@@ -112,3 +112,12 @@ config HW_RANDOM_PASEMI
 
 	  If unsure, say Y.
 
+config HW_RANDOM_VIRTIO
+	tristate "VirtIO Random Number Generator support"
+	depends on HW_RANDOM && VIRTIO
+	---help---
+	  This driver provides kernel-side support for the virtual Random Number
+	  Generator hardware.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called virtio-rng.  If unsure, say N.

trunk/drivers/char/hw_random/Makefile

@@ -11,3 +11,4 @@ obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o
 obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o
 obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
 obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
+obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o

trunk/drivers/char/hw_random/virtio-rng.c

@@ -0,0 +1,155 @@
+/*
+ * Randomness driver for virtio
+ *  Copyright (C) 2007, 2008 Rusty Russell IBM Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+#include <linux/err.h>
+#include <linux/hw_random.h>
+#include <linux/scatterlist.h>
+#include <linux/spinlock.h>
+#include <linux/virtio.h>
+#include <linux/virtio_rng.h>
+
+/* The host will fill any buffer we give it with sweet, sweet randomness.  We
+ * give it 64 bytes at a time, and the hwrng framework takes it 4 bytes at a
+ * time. */
+#define RANDOM_DATA_SIZE 64
+
+static struct virtqueue *vq;
+static u32 *random_data;
+static unsigned int data_left;
+static DECLARE_COMPLETION(have_data);
+
+static void random_recv_done(struct virtqueue *vq)
+{
+	int len;
+
+	/* We never get spurious callbacks. */
+	if (!vq->vq_ops->get_buf(vq, &len))
+		BUG();
+
+	data_left = len / sizeof(random_data[0]);
+	complete(&have_data);
+}
+
+static void register_buffer(void)
+{
+	struct scatterlist sg;
+
+	sg_init_one(&sg, random_data, RANDOM_DATA_SIZE);
+	/* There should always be room for one buffer. */
+	if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) != 0)
+		BUG();
+	vq->vq_ops->kick(vq);
+}
+
+/* At least we don't udelay() in a loop like some other drivers. */
+static int virtio_data_present(struct hwrng *rng, int wait)
+{
+	if (data_left)
+		return 1;
+
+	if (!wait)
+		return 0;
+
+	wait_for_completion(&have_data);
+	return 1;
+}
+
+/* virtio_data_present() must have succeeded before this is called. */
+static int virtio_data_read(struct hwrng *rng, u32 *data)
+{
+	BUG_ON(!data_left);
+
+	*data = random_data[--data_left];
+
+	if (!data_left) {
+		init_completion(&have_data);
+		register_buffer();
+	}
+	return sizeof(*data);
+}
+
+static struct hwrng virtio_hwrng = {
+	.name = "virtio",
+	.data_present = virtio_data_present,
+	.data_read = virtio_data_read,
+};
+
+static int virtrng_probe(struct virtio_device *vdev)
+{
+	int err;
+
+	/* We expect a single virtqueue. */
+	vq = vdev->config->find_vq(vdev, 0, random_recv_done);
+	if (IS_ERR(vq))
+		return PTR_ERR(vq);
+
+	err = hwrng_register(&virtio_hwrng);
+	if (err) {
+		vdev->config->del_vq(vq);
+		return err;
+	}
+
+	register_buffer();
+	return 0;
+}
+
+static void virtrng_remove(struct virtio_device *vdev)
+{
+	vdev->config->reset(vdev);
+	hwrng_unregister(&virtio_hwrng);
+	vdev->config->del_vq(vq);
+}
+
+static struct virtio_device_id id_table[] = {
+	{ VIRTIO_ID_RNG, VIRTIO_DEV_ANY_ID },
+	{ 0 },
+};
+
+static struct virtio_driver virtio_rng = {
+	.driver.name =	KBUILD_MODNAME,
+	.driver.owner =	THIS_MODULE,
+	.id_table =	id_table,
+	.probe =	virtrng_probe,
+	.remove =	__devexit_p(virtrng_remove),
+};
+
+static int __init init(void)
+{
+	int err;
+
+	random_data = kmalloc(RANDOM_DATA_SIZE, GFP_KERNEL);
+	if (!random_data)
+		return -ENOMEM;
+
+	err = register_virtio_driver(&virtio_rng);
+	if (err)
+		kfree(random_data);
+	return err;
+}
+
+static void __exit fini(void)
+{
+	kfree(random_data);
+	unregister_virtio_driver(&virtio_rng);
+}
+module_init(init);
+module_exit(fini);
+
+MODULE_DEVICE_TABLE(virtio, id_table);
+MODULE_DESCRIPTION("Virtio random number driver");
+MODULE_LICENSE("GPL");

trunk/drivers/input/keyboard/atkbd.c

@@ -807,6 +807,8 @@ static int atkbd_activate(struct atkbd *atkbd)
 static void atkbd_cleanup(struct serio *serio)
 {
 	struct atkbd *atkbd = serio_get_drvdata(serio);
+
+	atkbd_disable(atkbd);
 	ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
 }
 

trunk/drivers/input/keyboard/pxa27x_keypad.c

@@ -136,24 +136,31 @@ static void pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
 		set_bit(code, input_dev->keybit);
 	}
 
+	for (i = 0; i < pdata->direct_key_num; i++)
+		set_bit(pdata->direct_key_map[i], input_dev->keybit);
+
 	keypad->rotary_up_key[0] = pdata->rotary0_up_key;
 	keypad->rotary_up_key[1] = pdata->rotary1_up_key;
 	keypad->rotary_down_key[0] = pdata->rotary0_down_key;
 	keypad->rotary_down_key[1] = pdata->rotary1_down_key;
 	keypad->rotary_rel_code[0] = pdata->rotary0_rel_code;
 	keypad->rotary_rel_code[1] = pdata->rotary1_rel_code;
 
-	if (pdata->rotary0_up_key && pdata->rotary0_down_key) {
-		set_bit(pdata->rotary0_up_key, input_dev->keybit);
-		set_bit(pdata->rotary0_down_key, input_dev->keybit);
-	} else
-		set_bit(pdata->rotary0_rel_code, input_dev->relbit);
-
-	if (pdata->rotary1_up_key && pdata->rotary1_down_key) {
-		set_bit(pdata->rotary1_up_key, input_dev->keybit);
-		set_bit(pdata->rotary1_down_key, input_dev->keybit);
-	} else
-		set_bit(pdata->rotary1_rel_code, input_dev->relbit);
+	if (pdata->enable_rotary0) {
+		if (pdata->rotary0_up_key && pdata->rotary0_down_key) {
+			set_bit(pdata->rotary0_up_key, input_dev->keybit);
+			set_bit(pdata->rotary0_down_key, input_dev->keybit);
+		} else
+			set_bit(pdata->rotary0_rel_code, input_dev->relbit);
+	}
+
+	if (pdata->enable_rotary1) {
+		if (pdata->rotary1_up_key && pdata->rotary1_down_key) {
+			set_bit(pdata->rotary1_up_key, input_dev->keybit);
+			set_bit(pdata->rotary1_down_key, input_dev->keybit);
+		} else
+			set_bit(pdata->rotary1_rel_code, input_dev->relbit);
+	}
 }
 
 static inline unsigned int lookup_matrix_keycode(
@@ -484,8 +491,13 @@ static int __devinit pxa27x_keypad_probe(struct platform_device *pdev)
 	keypad->input_dev = input_dev;
 	input_set_drvdata(input_dev, keypad);
 
-	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
-		BIT_MASK(EV_REL);
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+	if ((keypad->pdata->enable_rotary0 &&
+			keypad->pdata->rotary0_rel_code) ||
+	    (keypad->pdata->enable_rotary1 &&
+			keypad->pdata->rotary1_rel_code)) {
+		input_dev->evbit[0] |= BIT_MASK(EV_REL);
+	}
 
 	pxa27x_keypad_build_keycode(keypad);
 	platform_set_drvdata(pdev, keypad);

trunk/drivers/input/misc/apanel.c

@@ -20,7 +20,6 @@
 #include <linux/module.h>
 #include <linux/ioport.h>
 #include <linux/io.h>
-#include <linux/module.h>
 #include <linux/input-polldev.h>
 #include <linux/i2c.h>
 #include <linux/workqueue.h>

trunk/drivers/input/serio/i8042-x86ia64io.h

@@ -330,6 +330,13 @@ static struct dmi_system_id __initdata i8042_dmi_dritek_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
 		},
 	},
+	{
+		.ident = "Acer TravelMate 660",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
+		},
+	},
 	{
 		.ident = "Acer TravelMate 2490",
 		.matches = {