On Wed, 2008-05-14 at 23:09 +0200, Tomasz Chmielewski wrote:
Anthony Liguori schrieb:
(...)
So, a PV network driver can do about 700Mb/s, and an emulated NIC can
do about 600 Mb/s, Windows guest to host?
That would be about 20% improvement?
FWIW, virtio-net is much
On Thu, 2008-05-15 at 11:11 -0700, Michael Lilie (mlilie) wrote:
Running iperf with 100 connections crashes with the new virtio driver.
The same setup works with e1000.
BSOD data:
DRIVER_IRQL_NOT_LESS_OR_EQUAL
That's not good, I just tested the old driver with xp guest and it was
ok.
On Wed, 2008-05-14 at 08:55 +0800, Jiang, Yunhong wrote:
Hi, Dor, I just checked the URL and seems it is not updated still,
willyou update it?
Avi, since it passed regression, we can release it (also with the .pdb
file).
-- Yunhong Jiang
Dor Laor mailto:[EMAIL PROTECTED] wrote:
On Wed
On Wed, 2008-05-14 at 15:52 +0200, Tomasz Chmielewski wrote:
Avi Kivity wrote:
This is the second release of network drivers for Windows guests running
on a kvm host. The drivers are intended for Windows 2000 and Windows
XP, and Windows 2003. Both x86 and x64 variants are provided.
On Wed, 2008-05-14 at 17:49 +0200, Tomasz Chmielewski wrote:
Dor Laor schrieb:
(...)
- PV Windows (network driver)
About 700Mb+-, there is currently extra copy that we need to omit.
Thanks for Anthony, we just have to change the driver.
- non-PV Windows
What do you mean
On Sun, 2008-05-04 at 15:21 -0500, Anthony Liguori wrote:
Normally, tap always reads packets and simply lets the client drop them if it
cannot receive them. For virtio-net, this results in massive packet loss and
about an 80% performance loss in TCP throughput.
This patch modifies
On Thu, 2008-04-24 at 15:47 +0300, Avi Kivity wrote:
Dor Laor wrote:
while investigating the revert of fix sci irq set when acpi timer I
discovered the reason. Please also re-revert the original patch.
Applied, but system_powerdown still doesn't work with the sci acpi timer
fix
the i/o thread stopped the timer.
[This is what happened on the sci irq timer, now there is no
need to revert it[
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
qemu/qemu-kvm.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/qemu/qemu-kvm.c b/qemu/qemu-kvm.c
index 50589a7
On Thu, 2008-04-10 at 11:48 +0300, Amit Shah wrote:
We can assign a device from the host machine to a guest.
A new command-line option, -pcidevice is added.
For example, to invoke it for an Ethernet device sitting at
PCI bus:dev.fn 04:08.0 with host IRQ 18, use this:
-pcidevice
On Thu, 2008-04-10 at 14:14 +0900, Jun Koi wrote:
On 4/10/08, Jorge Lucángeli Obes [EMAIL PROTECTED] wrote:
On Thu, Apr 10, 2008 at 12:59 AM, Jun Koi [EMAIL PROTECTED] wrote:
Now I succesfully installed 2.6.25-rc8, and virtio block device works
well. But from inside my VM, how can I
On Wed, 2008-04-09 at 17:26 +0800, Yunfeng Zhao wrote:
Hi,
I meet problem to get hugetlbfs work on my test box.
If i added --mem-path to qemu, the guest will always fail to boot with
the error messages below printed on qemu console:
###
ata0 master:
On Sun, 2008-04-06 at 21:56 +0200, Nikola Ciprich wrote:
Hi,
I spent some time trying to tune performance of KVM guest using kernel
compilation as a kind of benchmark (I'm using virtual machines for
compiling a lot, so it's good benchmark for me in general)
Host machine: 2x quad core
On Mon, 2008-03-31 at 10:17 +0200, Alexander Graf wrote:
On Mar 31, 2008, at 9:43 AM, Avi Kivity wrote:
Alexander Graf wrote:
I am experiencing 7-8ms ping latencies (native 0.1ms) on x86_64 as
well, when pinging the virtual machine. Maybe it's not related to
PowerPC? Is it supposed
On Sat, 2008-03-29 at 16:55 -0500, Anthony Liguori wrote:
This patch introduces virtio support over PCI. virtio is a generic virtual IO
framework for Linux first introduced in 2.6.23. Since 2.6.25, virtio has
supported a PCI transport which this patch implements.
Since the last time these
On Fri, 2008-03-28 at 23:41 +, Antoine Martin wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
Hi,
Guests seem to be doing a lot of timer related polling, is there any way
to reduce that (which would reduce load on the host):
It's weird we don't see any ioctl in the middle,
On Tue, 2008-03-25 at 22:55 -0600, Randy Terbush wrote:
I've been sifting through docs and code to try to figure out if I can
actually expose this Sangoma card to a virtual container running
Asterisk.
You mean to connect a physical pci card to a virtual machine.
This is what we call pci
On Wed, 2008-03-26 at 15:14 -0300, Marcelo Tosatti wrote:
On Wed, Mar 26, 2008 at 06:57:04PM +0200, Avi Kivity wrote:
Marcelo Tosatti wrote:
QEMU/KVM: separate thread for IO handling
Move IO processing from vcpu0 to a dedicated thread.
This removes load on vcpu0 by allowing
On Tue, 2008-03-25 at 12:35 +0200, Mohammed Gamal wrote:
On Tue, Mar 25, 2008 at 11:58 AM, Alexey Eremenko
[EMAIL PROTECTED] wrote:
Is this caused by KVM not supporting real mode on Intel hosts, or is it
caused by some other reason?
Yes, it is correct. Ubuntu 7.04/7.10 won't
the current time drift on windows acpi hal guest.
It works well for in-kernel irqchip and also w/o.
Todo:
1. Implement it for the pit and eliminated the in-kernel pit.
2. Support smp (move acked_irq to CPUState)
3. Prepare several cleaner patches
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
libkvm
On Mon, 2008-03-24 at 00:32 +0900, Ryota OZAKI wrote:
Hi Avi,
If you use the dyntick clock option (the default, IIRC), and a newer
host kernel, then the kernel provides high-resolution timers, very
likely using HPET internally or some other high resolution clock and
event source.
On Sun, 2008-03-23 at 16:19 +, Paul Brook wrote:
On Sunday 23 March 2008, Dor Laor wrote:
--- a/qemu/hw/irq.c
+++ b/qemu/hw/irq.c
@@ -30,6 +30,8 @@ struct IRQState {
int n;
};
+uint32_t qemu_irq_acked[NR_IRQ_WORDS];
This is absolute rubbish. The whole point
On Wed, 2008-03-19 at 17:39 +0200, Avi Kivity wrote:
Anthony Liguori wrote:
Avi Kivity wrote:
The fourth is probably impossible from userspace (and very
difficult in the kernel).
What makes it impossible to do in userspace? If you managed a
tsc_offset in userspace, you would of
On Sun, 2008-03-16 at 19:08 +0200, Avi Kivity wrote:
Dor Laor wrote:
From 498f162fc9d9fb897c756273c481101a44a220de Mon Sep 17 00:00:00 2001
From: Dor Laor [EMAIL PROTECTED]
Date: Thu, 13 Mar 2008 00:11:41 +0200
Subject: [PATCH] Fix sci irq set when acpi timer about to wrap.
The acpi
After some research of time drift while using window windows acpi hal I
discovered it uses the ... rtc timer as a source clock.
Not the apic, acpi nor the pit. The acpi timer is not used by the time
keeping clock, the apic pit timer irqs are masked.
In order to fix the time drift we need to fix
On Wed, 2008-03-19 at 01:09 +0200, Dor Laor wrote:
After some research of time drift while using window windows acpi hal I
discovered it uses the ... rtc timer as a source clock.
Not the apic, acpi nor the pit. The acpi timer is not used by the time
keeping clock, the apic pit timer irqs
On Wed, 2008-03-12 at 05:10 +0100, aGaTHoS wrote:
CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 4800+
kvm version: 62
kernel: 2.6.23-hardened-r7 (with gentoo standard and hardened patches, it is
anyway compiled without ssp and pie)
arch: x86_64
guest OS: various, windows XP and various
On Wed, 2008-03-12 at 10:41 +0800, Yunfeng Zhao wrote:
Chris Wedgwood wrote:
On Mon, Mar 10, 2008 at 05:27:32PM +0800, Yunfeng Zhao wrote:
One new issue:
1. booting smp windows guests has 30% chance of hang
On Tue, 2008-03-11 at 15:30 -0700, Dhirendra Pal Singh wrote:
I tried e1000 and it says qemu: Unsupported NIC: e1000 :( Did I
miss something.. ?
I downloaded the latest code base for qemu, and I see the following
lines in qemu-doc.texi
*
@code{i82551},
On Wed, 2008-03-12 at 12:38 -0500, Anthony Liguori wrote:
Part of the feedback we received from Fabrice about the KVM patches
for QEMU
is that we should create a separate device for the in-kernel APIC to
avoid
having lots of if (kvm_enabled()) within the APIC code that were
difficult to
From 498f162fc9d9fb897c756273c481101a44a220de Mon Sep 17 00:00:00 2001
From: Dor Laor [EMAIL PROTECTED]
Date: Thu, 13 Mar 2008 00:11:41 +0200
Subject: [PATCH] Fix sci irq set when acpi timer about to wrap.
The acpi timer should generate sci irq when enabled and
when bit 23 of the timer counter
On Mon, 2008-03-10 at 12:13 -0700, Jorge Lucángeli Obes wrote:
On Mon, Mar 10, 2008 at 11:58 AM, Dhirendra Pal Singh
[EMAIL PROTECTED] wrote:
Hi Guys,
I am trying to evaluate, kvm at my work for virtual support in our product..
I had setup up a windows guest, in my ubuntu host, on
On Thu, 2008-03-06 at 14:56 -0600, Anthony Liguori wrote:
Avi Kivity wrote:
The thing I'm trying to get at is a quantitative statement about why
moving the pit into the kernel is the right thing. I'll try to give
the patches a try myself in the next couple of days. I don't think
On Thu, 2008-03-06 at 14:17 -0500, [EMAIL PROTECTED] wrote:
Greetings,
I'm running vanilla-sources-2.6.24.3 with KVM-63 on a Thinkpad T61p
running Gentoo Linux. I'm having some trouble with a corporate rollout
of WinXP into a KVM image. My company uses WinPE in order to do the
rollout,
On Tue, 2008-03-04 at 18:50 -0600, Anthony Liguori wrote:
Dor Laor wrote:
On Tue, 2008-03-04 at 09:52 -0600, Anthony Liguori wrote:
Yang, Sheng wrote:
Hi
Here is the last in-kernel PIT patch for KVM. The mainly change from last
version is the supporting to save/restore
On Wed, 2008-03-05 at 03:47 -0600, Robin Holt wrote:
On Wed, Mar 05, 2008 at 07:09:55AM +0200, Avi Kivity wrote:
Isn't that out of the question for .25?
I keep hearing this mantra. What is so compelling about the .25
release? When seems to be more important than what. While I understand
On Wed, 2008-03-05 at 22:06 +1100, Rusty Russell wrote:
On Tuesday 04 March 2008 03:05:16 octane indice wrote:
Hello
I have some difficulty to use network inside lguest.
I use a slackware 12 for guest and host with a 2.6.24 kernel.
I boot lguest like that:
# tunctl
# ifconfig
On Wed, 2008-03-05 at 17:05 -0600, Anthony Liguori wrote:
Dor Laor wrote:
On Wed, 2008-03-05 at 19:30 +0200, Avi Kivity wrote:
Playing a movie is better than any benchmark; it reflects actual user
experience in a real and important use case. Benchmarks are substitutes
for real
On Wed, 2008-03-05 at 17:10 -0600, Anthony Liguori wrote:
Dor Laor wrote:
Seems to work reliably with kvm, should do the same trick for lguest.
You can download it from
git://kvm.qumranet.com/home/dor/src/kvm-guest-drivers-linux
Anthony, you can update your mercurial repository
On Mon, 2008-03-03 at 09:27 -0600, Anthony Liguori wrote:
Hi Dor,
Dor Laor wrote:
void *virtio_net_init(PCIBus *bus, NICInfo *nd, int devfn)
{
VirtIONet *n;
+const char *info_str = virtio-net;
-n = (VirtIONet *)virtio_init_pci(bus, virtio-net, 6900, 0x1000,
+n
repository: /home/dor/src/merge/kvm
branch: trunk
commit acdb6d2aa7332179eead306ead17494ae23edbd6
Author: Dor Laor [EMAIL PROTECTED]
Date: Tue Mar 4 08:16:06 2008 -0500
Check device status in tx timer.
The device can be down when the timer pops.
If it is down it will cause
repository: /home/dor/src/merge/kvm
branch: trunk
commit 27541e5166e4bb6d053b77f7fd7b3ed75db58138
Author: Dor Laor [EMAIL PROTECTED]
Date: Tue Mar 4 08:59:03 2008 -0500
Add virtio_net_id for every instance, as suggested by Anthony Liguori
Signed-off-by: Dor Laor [EMAIL PROTECTED
repository: /home/dor/src/merge/kvm
branch: trunk
commit db89e8403773a68d4c0ac3d6813f19ec83cb7011
Author: Dor Laor [EMAIL PROTECTED]
Date: Tue Mar 4 08:14:37 2008 -0500
Fix virtio migration when the device is down
If the guest did not initalize the pfn, don't use it.
Signed-off
repository: /home/dor/src/merge/kvm
branch: trunk
commit bf1e6da21722a4699ea3739e587f282b9a5db418
Author: Dor Laor [EMAIL PROTECTED]
Date: Tue Mar 4 08:57:52 2008 -0500
Use specific avail/used ring structures
This is more accurate than using page_size,
as suggested by Anthony
On Tue, 2008-03-04 at 09:42 -0600, Anthony Liguori wrote:
diff --git a/qemu/hw/virtio-net.c b/qemu/hw/virtio-net.c
index 612cf6b..a05eafb 100644
--- a/qemu/hw/virtio-net.c
+++ b/qemu/hw/virtio-net.c
@@ -280,6 +280,10 @@ static void virtio_net_tx_timer(void *opaque)
{
VirtIONet
Hello
Sorry for my intervention into your communication, but are you sure,
when you want to use virtio, you must have 2.6.25 kernel on both - guest
and host system?
I test this case right now, and I have running 2.6.25-rc3 only on guest
system with kvm-62.
It's enough running the
On Tue, 2008-03-04 at 09:52 -0600, Anthony Liguori wrote:
Yang, Sheng wrote:
Hi
Here is the last in-kernel PIT patch for KVM. The mainly change from last
version is the supporting to save/restore. I also tested live migration.
The other modifies including some date structure changed
rather
copy the entire ring (3 pages) when saving state than
touching the dirty bits every time in fast path.
Besides that the virtio device, pci bus state and
the network device states are saved.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
diff --git a/qemu/hw/virtio-net.c b/qemu/hw/virtio
On Thu, 2008-02-28 at 00:22 -0500, Haydn Solomon wrote:
First of all, thank you for all the great work on this project.
I am trying to boot a linux guest from virtio block device. I followed
the howto on the wiki but guest is not able to locate root device.
Only thing I am doing
repository: /home/build/src/kvm
branch: trunk
commit cd5edbab7d647b81cbbf60d530068f2916658753
Author: Dor Laor [EMAIL PROTECTED]
Date: Thu Feb 28 11:01:41 2008 +0200
Change the e1000 mmio addr space according to spec.
According to the Intel 82540EM manual, the mmio space
On Wed, 2008-02-27 at 18:08 +0800, Zhao Forrest wrote:
Hi experts,
I tried to setup VM network by following the instructions at
http://kvm.qumranet.com/kvmwiki/Networking. In particular I tried to
setup public bridge, so I need /usr/sbin/tunctl. However I could not
find tunctl on my
On Mon, 2008-02-25 at 13:47 -0600, Anthony Liguori wrote:
This patch adds support to QEMU for Rusty's recently introduce virtio balloon
driver. The user-facing portions of this are the introduction of a balloon
and info balloon command in the monitor.
The patch looks good. Might be a good
On Wed, 2008-02-20 at 11:41 +0200, Izik Eidus wrote:
On Wed, 2008-02-20 at 15:09 +0800, Zhao, Yunfeng wrote:
Hi,All
This is testing result for KVM-61.
No new issue has been found in the testing.
Five old issues:
1. Fails to save/restore guests
Save/restore may cause host to
On Fri, 2008-02-15 at 23:42 +0530, Balaji Rao wrote:
Hello all,
When going through orpofile code, I noticed that boot_cpu_data was used to
determine CPU vendor, family etc. Will this be updated on migration to a
different Machine say, from Intel to AMD ? If not, wouldn't it cause
On Thu, 2008-02-14 at 12:08 -0500, Andrey Dmitriev wrote:
If I want to stick to debian, would the best way to do this be to just
download kvm60 source, compile the module and load it in, or does
kernel still require upgrading (I think latest on etch is .18 not .20)
You can stay with debain,
On Tue, 2008-01-29 at 10:50 -0700, Cameron Macdonell wrote:
Hi,
What are the command-line options necessary to get the guest devices
to use the paravirt layer?
For network you use '-net nic,model=virtio',
I hope to write a wiki page for it tomorrow.
Thanks,
Cam
also tested tcp/udp (udp tx is only 550Mbps with the patch, w/o it's
only 220Mbps)
So this patch is pretty much killing performance for netperf.
Did you have hrtimer configured on the host?
Dor Laor wrote:
There was a problem with the location of the notify call in
add_buff function
From f582caf612b446e42f1e80d5ef12c5b7322efd03 Mon Sep 17 00:00:00 2001
From: Dor Laor [EMAIL PROTECTED]
Date: Mon, 28 Jan 2008 02:09:48 +0200
Subject: [PATCH] virtio_net tx performance fix
There was a problem with the location of the notify call in
add_buff function:
When VRING_USED_F_NO_NOTIFY
On Thu, 2008-01-24 at 16:29 -0600, Anthony Liguori wrote:
Anthony Liguori wrote:
This patch adds support to QEMU for Rusty's recently introduce virtio
balloon
driver. The user-facing portions of this are the introduction of a
balloon
and info balloon command in the monitor.
I
On Fri, 2008-01-25 at 15:20 -0700, Cam Macdonell wrote:
Hi,
I get the following warning in the kernel messages:
kvm: emulating preempt notifiers; do not benchmark on this machine
Is this an accurate warning, should the machine not be used for
It's accurate.
benchmarking KVM? or does
On Tue, 2008-01-22 at 17:59 +0200, Izik Eidus wrote:
Andrea Gelmini wrote:
Hi all,
I've got a Vaio VGN-SZ1VP_C. As you can read here¹, Sony disabled
VT (and AHCI) by BIOS. So, when I try to load KVM module I've got:
kvm: disabled by bios
Is it possible to ignore BIOS settings
On Mon, 2008-01-21 at 12:13 +0200, Avi Kivity wrote:
Jan Kiszka wrote:
Hi Avi,
commit kvm: qemu: consume all pending I/O in I/O loop
(8ab8bb09f1115b9bf733f885cc92b6c63d83f420) broke reading data bursts
from serial devices (and maybe from other character devices as well) by
guests.
On Thu, 2008-01-17 at 18:20 +0100, Soren Hansen wrote:
Hi!
I'm having an issue with GFXboot in Ubuntu. If I try to boot one of our
recent iso images, e.g.
http://cdimage.ubuntu.com/ubuntu-server/daily/current/hardy-server-amd64.iso
with a simple kvm -cdrom hardy-server-amd64 using
On Thu, 2008-01-17 at 07:56 -0600, Anthony Liguori wrote:
Dor Laor wrote:
On Thu, 2008-01-17 at 11:25 +0100, Martin Schwidefsky wrote:
Another idea: Martin added an oom notifier to the cmm driver. Before the
oom-killer kicks in cmm will try to free 256 pages. I think your virtio
On Tue, 2008-01-15 at 17:01 -0200, Marcelo Tosatti wrote:
OK, thats simpler. How about this:
It's sure is simpler :)
[PATCH] Virtio balloon driver
Add a balloon driver for KVM, host-guest communication is performed
via virtio.
Signed-off-by: Marcelo Tosatti [EMAIL PROTECTED]
[snip]
On Thu, 2008-01-10 at 21:27 +0900, Akio Takebe wrote:
Hi, Marcelo
+static int kvm_balloon_inflate(struct virtballoon *v, int32_t npages)
+{
+ LIST_HEAD(tmp_list);
+ struct page *page, *tmp;
+ struct balloon_buf *buf;
+ u32 *pfn;
+ int allocated = 0;
+ int i, r = -ENOMEM;
+
andrzej zaborowski wrote:
Hi,
On 09/01/2008, Dor Laor [EMAIL PROTECTED] wrote:
It which supports TCP/UDP and IP transmit checksum, as well as TSO.
It has been tested with Linux (2.6.18|22|23|24)++ and Windows XP (using
the driver supplied at the intel download site).
Windows Vista
(its not the only problem).
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
qemu/hw/virtio-net.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/qemu/hw/virtio-net.c b/qemu/hw/virtio-net.c
index 777fe2c..3d07b65 100644
--- a/qemu/hw/virtio-net.c
+++ b/qemu/hw/virtio-net.c
On Wed, 2008-01-09 at 08:29 -0600, Anthony Liguori wrote:
Dor Laor wrote:
Now that we have a host timer based tx wakeup it waits for 64
packets or timeout before processing them.
This might cause the guest to run out of tx buffers while the host
holds them up.
There's a proper
Norbert Preining wrote:
Hi all,
(please Cc, thanks)
I am running kernel 2.6.24-rc6 and kvm-56 (or was it 55) and as soon as
I plug an usb device with usb enabled it is getting terrible slow. I
have searched a bit and it seems to be related to async i/o not being
implemented.
Can you please
Dong, Eddie wrote:
Anthony Liguori wrote:
Yang, Sheng wrote:
From 9743b5299bae1779c2b893cbeb86122bcccb9b2d Mon Sep 17 00:00:00
2001
From: Sheng Yang [EMAIL PROTECTED]
Date: Wed, 2 Jan 2008 14:49:22 +0800
Subject: [PATCH] KVM: emulator: Only allow VMCALL/VMMCALL trapped by
#UD
When
Avi Kivity wrote:
Anthony Liguori wrote:
I think we should hold off on this sort of patch at first. I know it
improves performance, but it's very hack-ish. I have a similar
patch[1] that improves performance more but is even more hack-ish.
I think we have to approach this by not special
Anthony Liguori wrote:
Dor Laor wrote:
Anthony Liguori wrote:
Hi Dor,
I can't tell if you made any changes to this series. I have to look
back to my notes, but I believe it would be okay to pull this series
into KVM. I still need to spend some time updating the patchset to
be more
From: Dor Laor [EMAIL PROTECTED]
It allows picking other NIC vendors than rtl8139.
Use --nictype=xxx, the ddefault is rtl8139.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
kvm |8 +++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/kvm b/kvm
index 0374fbc..2a7dc85
From: Dor Laor [EMAIL PROTECTED]
This patch implements the backend support for the virtio block device. It's
designed to support in-order queueing of a virtually unlimited size so it will
be able to perform better than SCSI. Besides performance, the virtio block
interface passes through guest
From: Dor Laor [EMAIL PROTECTED]
This patch implements the backend support for the virtio network device. The
device is optimized for virtualized environments by limiting the number of
guest=host transitions per-packet. In the best case, the number of
transitions per-packet is 1.
With some
This patchset updates kvm repository with Anthony's virtio
implementation along with rx performance improvements and
guest reset handling. The original code was sent to qemu
devel list 2 weeks ago. V2 fixes Avi's comments for enabling
-net user option (although with old performance).
It
From: Dor Laor [EMAIL PROTECTED]
Allow tx only if VIRTIO_CONFIG_S_DRIVER_OK.
It can prevent an smp race of tx and driver unload.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
qemu/hw/virtio-net.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/virtio-net.c b
From: Dor Laor [EMAIL PROTECTED]
This patch implements the basic infrastructure for virtio devices. These
devices are exposed to the guest as real PCI devices. The PCI vendor/device
IDs have been donated by Qumranet and the subsystem IDs are used to distinguish
the virtio device itself.
Virtio
From: Dor Laor [EMAIL PROTECTED]
This patch prevents qemu handlers from reading the tap and instead
it selects the tap descriptors for virtio devices.
This eliminates copies and also batch guest notifications (interrupts).
Using this patch the rx performance reaches 800Mbps.
-net user option
From: Dor Laor [EMAIL PROTECTED]
Stop using the old, unregsitered 0x5002, 0x2258 pair and use
Qumranet's donated 0x1AF4,0x10XX pairs.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
qemu/hw/pc.c |2 +-
qemu/hw/virtio-blk.c |2 +-
2 files changed, 2 insertions(+), 2 deletions
From: Dor Laor [EMAIL PROTECTED]
Call it when the driver sets the pfn to zero and
also on qemu_reset notifier list.
This fixes crashes when virtio driver unloads or when
rebooting the guest.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
qemu/hw/virtio.c | 24 +---
1 files
This patchset updates kvm repository with Rusty's/Anthony's virtio
implementation along with already sent tx performance bug fix and
new module reload fixes.
The (new) patches were accepted by Rusty, this is a resend to fix
email space mangling software.
This code together with the userspace
From: Anthony Liguori [EMAIL PROTECTED]
This patch moves virtio under the virtualization menu and changes virtio
devices to not claim to only be for lguest.
Signed-off-by: Anthony Liguori [EMAIL PROTECTED]
Signed-off-by: Rusty Russell [EMAIL PROTECTED]
---
arch/x86/kvm/Kconfig |1 +
From: Anthony Liguori [EMAIL PROTECTED]
ifconfig down or remove the module to get the statistics dump.
---
drivers/net/virtio_net.c | 120 +++---
1 files changed, 103 insertions(+), 17 deletions(-)
diff --git a/drivers/net/virtio_net.c
From: Dor Laor [EMAIL PROTECTED]
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
drivers/net/virtio_net.c |5 -
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 0403d65..d35dbe7 100644
--- a/drivers/net/virtio_net.c
From: Dor Laor [EMAIL PROTECTED]
Add the device release function.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
drivers/virtio/virtio.c |7 +++
drivers/virtio/virtio_pci.c |7 +++
2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/virtio/virtio.c b
From: Rusty Russell [EMAIL PROTECTED]
Signed-off-by: Rusty Russell [EMAIL PROTECTED]
---
Documentation/lguest/lguest.c | 53 +++
drivers/char/hw_random/Kconfig | 10 +++
drivers/char/hw_random/Makefile |1 +
drivers/char/hw_random/virtio-rng.c | 124
From: Anthony Liguori [EMAIL PROTECTED]
Not sure why hrtimer's cb_mode only exists with CONFIG_HIGH_RES_TIMERS; that
seems like a bug to me.
Signed-off-by: Rusty Russell [EMAIL PROTECTED]
---
drivers/net/virtio_net.c | 41 -
1 files changed, 40
From: Anthony Liguori [EMAIL PROTECTED]
This is needed for the virtio PCI device to be compiled as a module.
Signed-off-by: Anthony Liguori [EMAIL PROTECTED]
Signed-off-by: Rusty Russell [EMAIL PROTECTED]
---
drivers/virtio/virtio_ring.c |6 ++
1 files changed, 6 insertions(+), 0
From: Dor Laor [EMAIL PROTECTED]
The current start_xmit sets 500us hrtimer to kick the host.
The problem is that if another xmit happens before the timer was fired then
the first xmit will have to wait additional 500us.
This patch does not re-arm the timer if there is existing one
From: Anthony Liguori [EMAIL PROTECTED]
Previously we used a type/len pair within the config space, but this
seems overkill. We now simply define a structure which represents the
layout in the config space: the config space can now only be extended
at the end.
The main driver-visible changes:
From: Dor Laor [EMAIL PROTECTED]
Both VIRTIO_CONFIG_S_DRIVER and VIRTIO_CONFIG_S_DRIVER_OK should
be cleaned upon driver unload.
Signed-off-by: Dor Laor [EMAIL PROTECTED]
---
drivers/virtio/virtio.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/virtio
From: Anthony Liguori [EMAIL PROTECTED]
This fixes a potential dangling xmit problem.
We also suppress refill interrupts until we need them.
Signed-off-by: Rusty Russell [EMAIL PROTECTED]
---
drivers/net/virtio_net.c | 69 -
1 files changed, 49
From: Anthony Liguori [EMAIL PROTECTED]
This is a PCI device that implements a transport for virtio. It allows virtio
devices to be used by QEMU based VMMs like KVM or Xen.
Signed-off-by: Anthony Liguori [EMAIL PROTECTED]
Signed-off-by: Rusty Russell [EMAIL PROTECTED]
---
From: Anthony Liguori [EMAIL PROTECTED]
Using unsigned int resulted in silent truncation of the upper 32-bit on x86_64
resulting in an OOPS since the ring was being initialized wrong.
Please reconsider my previous patch to just use PAGE_ALIGN(). Open coding this
sort of stuff, no matter how
.
There is also work in progress to move the balloon driver over virtio.
Thanks,
Dor.
Regards,
Anthony Liguori
[EMAIL PROTECTED] wrote:
From: Dor Laor [EMAIL PROTECTED]
This patch implements the basic infrastructure for virtio devices.
These
devices are exposed to the guest as real PCI devices
Jerry Geis wrote:
Seems as though running with the -no-acpi command will not boot XP.
once I remove it XP boots fine.
It's probably because you have ACPI HAL in windows, it required the acpi
to be set in qemu.
It also kills performance on kvm versions 58.
You can approve this by running
Rusty Russell wrote:
On Friday 14 December 2007 23:12:05 Christian Borntraeger wrote:
Rusty, Anthony, Dor,
I need your brain power :-)
On smp guests I have seen a problem with virtio (the version in curent
Avi's git) which do not occur on single processor guests:
kernel BUG at
This patchset updates kvm repository with Anthony's virtio
implementation along
with rx performance improvements and guest reset handling.
The original code was sent to qemu devel list 2 weeks ago.
It contains support for network block devices.
Using the performance improvement I was able to do
From 1b493ba192cd677d9feb886eb494cb266a8604e2 Mon Sep 17 00:00:00 2001
From: Dor Laor [EMAIL PROTECTED]
Date: Thu, 20 Dec 2007 10:48:32 +0200
Subject: [PATCH] [VIRTIO] Add virtio_reset callback
Call it when the driver sets the pfn to zero and
also on qemu_reset notifier list.
This fixes crashes
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