Displaying 20 results from an estimated 28 matches for "kvm_extint_handler".
2010 Aug 23
3
[PATCH 1/2] S390: take a full byte as ext_param indicator
...io.c
@@ -27,6 +27,9 @@
#include <asm/s390_ext.h>
#define VIRTIO_SUBCODE_64 0x0D00
+#define VIRTIO_PARAM_MASK 0xff
+#define VIRTIO_PARAM_VRING_INTERRUPT 0x0
+#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
/*
* The pointer to our (page) of device descriptions.
@@ -334,7 +337,7 @@ static void kvm_extint_handler(u16 code)
{
struct virtqueue *vq;
u16 subcode;
- int config_changed;
+ u32 param;
subcode = S390_lowcore.cpu_addr;
if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
@@ -343,18 +346,25 @@ static void kvm_extint_handler(u16 code)
/* The LSB might be overloaded, we have to mask it */
vq...
2010 Aug 23
3
[PATCH 1/2] S390: take a full byte as ext_param indicator
...io.c
@@ -27,6 +27,9 @@
#include <asm/s390_ext.h>
#define VIRTIO_SUBCODE_64 0x0D00
+#define VIRTIO_PARAM_MASK 0xff
+#define VIRTIO_PARAM_VRING_INTERRUPT 0x0
+#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
/*
* The pointer to our (page) of device descriptions.
@@ -334,7 +337,7 @@ static void kvm_extint_handler(u16 code)
{
struct virtqueue *vq;
u16 subcode;
- int config_changed;
+ u32 param;
subcode = S390_lowcore.cpu_addr;
if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
@@ -343,18 +346,25 @@ static void kvm_extint_handler(u16 code)
/* The LSB might be overloaded, we have to mask it */
vq...
2010 Aug 24
4
[PATCH 1/3] S390: take a full byte as ext_param indicator
...define VIRTIO_PARAM_VRING_INTERRUPT 0x0
+#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
+
#endif
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index 4e298bc..68cef4d 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -334,7 +334,7 @@ static void kvm_extint_handler(u16 code)
{
struct virtqueue *vq;
u16 subcode;
- int config_changed;
+ u32 param;
subcode = S390_lowcore.cpu_addr;
if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
@@ -343,18 +343,25 @@ static void kvm_extint_handler(u16 code)
/* The LSB might be overloaded, we have to mask it */
vq...
2010 Aug 24
4
[PATCH 1/3] S390: take a full byte as ext_param indicator
...define VIRTIO_PARAM_VRING_INTERRUPT 0x0
+#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
+
#endif
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index 4e298bc..68cef4d 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -334,7 +334,7 @@ static void kvm_extint_handler(u16 code)
{
struct virtqueue *vq;
u16 subcode;
- int config_changed;
+ u32 param;
subcode = S390_lowcore.cpu_addr;
if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
@@ -343,18 +343,25 @@ static void kvm_extint_handler(u16 code)
/* The LSB might be overloaded, we have to mask it */
vq...
2008 Feb 11
1
[PATCH] virtio_net: Fix oops on early interrupts - introduced by virtio reset code
...001 tmll %r1,1
0000000000475998: a7840009 brc 8,4759aa
000000000047599c: e340b0b80004 lg %r4,184(%r11)
Call Trace:
([<000001500f978000>] 0x1500f978000)
[<00000000004779a6>] vring_interrupt+0x72/0x88
[<0000000000491d9c>] kvm_extint_handler+0x34/0x44
[<000000000010d2d4>] do_extint+0xc0/0xfc
[<0000000000113b5a>] ext_no_vtime+0x1c/0x20
[<000000000010a0b6>] cpu_idle+0x21a/0x230
We must initialize vdev->priv before we use the notify hypercall as
vdev->priv is used in skb_recv_done. So lets move the assignment...
2008 Feb 11
1
[PATCH] virtio_net: Fix oops on early interrupts - introduced by virtio reset code
...001 tmll %r1,1
0000000000475998: a7840009 brc 8,4759aa
000000000047599c: e340b0b80004 lg %r4,184(%r11)
Call Trace:
([<000001500f978000>] 0x1500f978000)
[<00000000004779a6>] vring_interrupt+0x72/0x88
[<0000000000491d9c>] kvm_extint_handler+0x34/0x44
[<000000000010d2d4>] do_extint+0xc0/0xfc
[<0000000000113b5a>] ext_no_vtime+0x1c/0x20
[<000000000010a0b6>] cpu_idle+0x21a/0x230
We must initialize vdev->priv before we use the notify hypercall as
vdev->priv is used in skb_recv_done. So lets move the assignment...
2014 Sep 22
1
[PATCH] virtio: unify config_changed handling
...+ virtio_config_changed(&mvdev->vdev);
iowrite8(1, &dc->guest_ack);
}
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index a134965..6431290 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -406,15 +406,8 @@ static void kvm_extint_handler(struct ext_code ext_code,
switch (param) {
case VIRTIO_PARAM_CONFIG_CHANGED:
- {
- struct virtio_driver *drv;
- drv = container_of(vq->vdev->dev.driver,
- struct virtio_driver, driver);
- if (drv->config_changed)
- drv->config_changed(vq->vdev);
-
+ virtio_config_ch...
2014 Sep 22
1
[PATCH] virtio: unify config_changed handling
...+ virtio_config_changed(&mvdev->vdev);
iowrite8(1, &dc->guest_ack);
}
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index a134965..6431290 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -406,15 +406,8 @@ static void kvm_extint_handler(struct ext_code ext_code,
switch (param) {
case VIRTIO_PARAM_CONFIG_CHANGED:
- {
- struct virtio_driver *drv;
- drv = container_of(vq->vdev->dev.driver,
- struct virtio_driver, driver);
- if (drv->config_changed)
- drv->config_changed(vq->vdev);
-
+ virtio_config_ch...
2008 Feb 05
1
[PATCH] virtio_net: Fix open <-> interrupt race
...lgr %r14,%r15
<4> 0000000000466386: a7840001 brc 8,466388
<4>Call Trace:
<4>([<000201500f85c000>] 0x201500f85c000)
<4> [<0000000000466556>] vring_interrupt+0x72/0x88
<4> [<00000000004801a0>] kvm_extint_handler+0x34/0x44
<4> [<000000000010d22c>] do_extint+0xbc/0xf8
<4> [<0000000000113f98>] ext_no_vtime+0x16/0x1a
<4> [<000000000010a182>] cpu_idle+0x216/0x238
<4>([<000000000010a162>] cpu_idle+0x1f6/0x238)
<4> [<0000000000568656>...
2008 Feb 05
1
[PATCH] virtio_net: Fix open <-> interrupt race
...lgr %r14,%r15
<4> 0000000000466386: a7840001 brc 8,466388
<4>Call Trace:
<4>([<000201500f85c000>] 0x201500f85c000)
<4> [<0000000000466556>] vring_interrupt+0x72/0x88
<4> [<00000000004801a0>] kvm_extint_handler+0x34/0x44
<4> [<000000000010d22c>] do_extint+0xbc/0xf8
<4> [<0000000000113f98>] ext_no_vtime+0x16/0x1a
<4> [<000000000010a182>] cpu_idle+0x216/0x238
<4>([<000000000010a162>] cpu_idle+0x1f6/0x238)
<4> [<0000000000568656>...
2014 Oct 05
0
[PATCH 02/16] virtio: unify config_changed handling
...+ virtio_config_changed(&mvdev->vdev);
iowrite8(1, &dc->guest_ack);
}
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index a134965..6431290 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -406,15 +406,8 @@ static void kvm_extint_handler(struct ext_code ext_code,
switch (param) {
case VIRTIO_PARAM_CONFIG_CHANGED:
- {
- struct virtio_driver *drv;
- drv = container_of(vq->vdev->dev.driver,
- struct virtio_driver, driver);
- if (drv->config_changed)
- drv->config_changed(vq->vdev);
-
+ virtio_config_ch...
2014 Oct 06
0
[PATCH v2 02/15] virtio: unify config_changed handling
...+ virtio_config_changed(&mvdev->vdev);
iowrite8(1, &dc->guest_ack);
}
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index a134965..6431290 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -406,15 +406,8 @@ static void kvm_extint_handler(struct ext_code ext_code,
switch (param) {
case VIRTIO_PARAM_CONFIG_CHANGED:
- {
- struct virtio_driver *drv;
- drv = container_of(vq->vdev->dev.driver,
- struct virtio_driver, driver);
- if (drv->config_changed)
- drv->config_changed(vq->vdev);
-
+ virtio_config_ch...
2008 Mar 20
2
[RFC/PATCH 15/15] guest: virtio device support, and kvm hypercalls
..._devices(void)
+{
+ unsigned int i;
+ struct kvm_device_desc *d;
+
+ for (i = 0; i < PAGE_SIZE; i += desc_size(d)) {
+ d = kvm_devices + i;
+
+ if (d->type == 0)
+ break;
+
+ add_kvm_device(d);
+ }
+}
+
+/*
+ * we emulate the request_irq behaviour on top of s390 extints
+ */
+static void kvm_extint_handler(u16 code)
+{
+ void *data = (void *) *(long *) __LC_PFAULT_INTPARM;
+
+ vring_interrupt(0, data);
+}
+
+/*
+ * Init function for virtio
+ * devices are in a single page above top of "normal" mem
+ */
+static int __init kvm_devices_init(void)
+{
+ if (!MACHINE_IS_KVM)
+ return -ENODEV;
+...
2008 Mar 20
2
[RFC/PATCH 15/15] guest: virtio device support, and kvm hypercalls
..._devices(void)
+{
+ unsigned int i;
+ struct kvm_device_desc *d;
+
+ for (i = 0; i < PAGE_SIZE; i += desc_size(d)) {
+ d = kvm_devices + i;
+
+ if (d->type == 0)
+ break;
+
+ add_kvm_device(d);
+ }
+}
+
+/*
+ * we emulate the request_irq behaviour on top of s390 extints
+ */
+static void kvm_extint_handler(u16 code)
+{
+ void *data = (void *) *(long *) __LC_PFAULT_INTPARM;
+
+ vring_interrupt(0, data);
+}
+
+/*
+ * Init function for virtio
+ * devices are in a single page above top of "normal" mem
+ */
+static int __init kvm_devices_init(void)
+{
+ if (!MACHINE_IS_KVM)
+ return -ENODEV;
+...
2017 Sep 27
5
[PATCH] drivers/s390/virtio: Remove the old KVM virtio transport
...if (dev) {
- /* XXX check for hotplug remove */
- put_device(dev);
- continue;
- }
-
- /* new device */
- printk(KERN_INFO "Adding new virtio device %p\n", d);
- add_kvm_device(d, i);
- }
-}
-
-/*
- * we emulate the request_irq behaviour on top of s390 extints
- */
-static void kvm_extint_handler(struct ext_code ext_code,
- unsigned int param32, unsigned long param64)
-{
- struct virtqueue *vq;
- u32 param;
-
- if ((ext_code.subcode & 0xff00) != VIRTIO_SUBCODE_64)
- return;
- inc_irq_stat(IRQEXT_VRT);
-
- /* The LSB might be overloaded, we have to mask it */
- vq = (struct vir...
2017 Sep 27
5
[PATCH] drivers/s390/virtio: Remove the old KVM virtio transport
...if (dev) {
- /* XXX check for hotplug remove */
- put_device(dev);
- continue;
- }
-
- /* new device */
- printk(KERN_INFO "Adding new virtio device %p\n", d);
- add_kvm_device(d, i);
- }
-}
-
-/*
- * we emulate the request_irq behaviour on top of s390 extints
- */
-static void kvm_extint_handler(struct ext_code ext_code,
- unsigned int param32, unsigned long param64)
-{
- struct virtqueue *vq;
- u32 param;
-
- if ((ext_code.subcode & 0xff00) != VIRTIO_SUBCODE_64)
- return;
- inc_irq_stat(IRQEXT_VRT);
-
- /* The LSB might be overloaded, we have to mask it */
- vq = (struct vir...
2008 Dec 29
0
[PULL] virtio and lguest tree
...q(struct virtqueue *vq)
vring_del_virtqueue(vq);
vmem_remove_mapping(config->address,
- vring_size(config->num, PAGE_SIZE));
+ vring_size(config->num,
+ KVM_S390_VIRTIO_RING_ALIGN));
}
/*
@@ -295,13 +299,29 @@ static void scan_devices(void)
*/
static void kvm_extint_handler(u16 code)
{
- void *data = (void *) *(long *) __LC_PFAULT_INTPARM;
- u16 subcode = S390_lowcore.cpu_addr;
+ struct virtqueue *vq;
+ u16 subcode;
+ int config_changed;
+ subcode = S390_lowcore.cpu_addr;
if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
return;
- vring_interrupt(0, data);
+...
2008 Dec 29
0
[PULL] virtio and lguest tree
...q(struct virtqueue *vq)
vring_del_virtqueue(vq);
vmem_remove_mapping(config->address,
- vring_size(config->num, PAGE_SIZE));
+ vring_size(config->num,
+ KVM_S390_VIRTIO_RING_ALIGN));
}
/*
@@ -295,13 +299,29 @@ static void scan_devices(void)
*/
static void kvm_extint_handler(u16 code)
{
- void *data = (void *) *(long *) __LC_PFAULT_INTPARM;
- u16 subcode = S390_lowcore.cpu_addr;
+ struct virtqueue *vq;
+ u16 subcode;
+ int config_changed;
+ subcode = S390_lowcore.cpu_addr;
if ((subcode & 0xff00) != VIRTIO_SUBCODE_64)
return;
- vring_interrupt(0, data);
+...
2014 Oct 06
25
[PATCH v2 00/15] virtio: fix spec compliance issues
Rusty, I have a mind to include this patchset for this merge window.
Any input on this?
This fixes the following virtio spec compliance issues:
1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits
2. on probe, drivers aren't prepared to handle config interrupts
arriving before probe returns
3. on probe, drivers use device before DRIVER_OK it set
Note that 1 is a
2014 Oct 06
25
[PATCH v2 00/15] virtio: fix spec compliance issues
Rusty, I have a mind to include this patchset for this merge window.
Any input on this?
This fixes the following virtio spec compliance issues:
1. on restore, drivers use device before setting ACKNOWLEDGE and DRIVER bits
2. on probe, drivers aren't prepared to handle config interrupts
arriving before probe returns
3. on probe, drivers use device before DRIVER_OK it set
Note that 1 is a