On 06/16/2011 03:29 PM, Ingo Molnar wrote:
> * Asias He wrote:
>
>> On 06/16/2011 05:33 AM, Sasha Levin wrote:
>>> Send signals only to the thread which handles console injection
>>> instead of the entire process.
>>>
>>> This prevents every sin
user mode network) -> remote server: 94.5 Mbps (CPU 99.90%)
host(where guest runs on) -> remote server: 95.7 Mbps (CPU 25.51%)
Asias He (31):
kvm tools: Introduce ethernet frame buffer system for uip
kvm tools: Add ARP support for uip
kvm tools: Add IPV4 support for uip
kvm t
- Introduce struct uip_arp to present ARP package
- uip_tx_do_arp()
Clone incoming ARP ethernet frame, if ARP is requesting
host IP address, tell guest host MAC address.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h | 15
()
Set a buffer as used, uip rx code will inject the ethernet frame in
this buffer into guest.
- uip_buf_clone()
Get a free buffer, and clone data into it.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h | 69 ++
tools
contains IP options.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h | 28
tools/kvm/uip/ipv4.c| 15 +++
3 files changed, 44 insertions(+), 0 deletions(-)
create mode 100644 tools/kvm/uip/ipv4.c
Other protocal, e.g. TCP, UDP, ICMP, can use uip_csum() to make
checsksum as well.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h |2 ++
tools/kvm/uip/csum.c| 25 +
3 files changed, 28 insertions(+), 0
- Introduce struct uip_icmp to present ICMP package
- Implement uip_csum_icmp() to calculate ICMP checksum
- Current ICMP implementation in uip does not really send ICMP package
to remote host in question, instead it just fake a ICMP reply to fool guest.
Signed-off-by: Asias He
---
tools
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 15 +++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index b9fa932..e220403 100644
--- a/tools/kvm/include/kvm/uip.h
+++ b/tools/kvm/include/kvm
This pseudo header is used for UDP checksum.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index e220403..35c7c23 100644
--- a/tools/kvm/include
struct uip_udp_socket is used to present every "connection" between
guest and remote host.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/u
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 10 ++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 473b9c7..e79cc4b 100644
--- a/tools/kvm/include/kvm/uip.h
+++ b/tools/kvm/include/kvm/uip.h
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index e79cc4b..979e2b0 100644
--- a/tools/kvm/include/kvm/uip.h
+++ b/tools/kvm/include/kvm/uip.h
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |1 +
tools/kvm/uip/csum.c| 29 +
2 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 979e2b0..e2ad66a 100644
--- a/tools
- Implement uip_tx_do_ipv4_udp() to send UDP package to remote host.
- Implement uip_udp_socket_thread() to receive UDP package from
remote host.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h | 15 +++
tools/kvm/uip/ipv4.c|3
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 16
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index ccc1698..1368694 100644
--- a/tools/kvm/include/kvm/uip.h
+++ b/tools/kvm/include/kvm
struct uip_tcp_socket is used to present every session
between guest and remote host.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 22 ++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
This patch adds three helpers uip_tcp_hdrlen(), uip_tcp_len(),
uip_tcp_payloadlen() to return TCP header length, TCP totoal
length, and tcp payload length.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 19 +++
1 files changed, 19 insertions(+), 0 deletions(-)
diff
uip_tcp_payload() returns start address of TCP payload in a TCP package.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 2ac48d7..a3fd1b0 100644
This patch adds too helpers uip_tcp_is_syn(), uip_tcp_is_fin() to check if SYN
and
FIN bit is set.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 17 +
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include
mplicity's sake, current
implementation in uip just returns a constant.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 13 +
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 5585680..46cec
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |3 +++
tools/kvm/uip/csum.c| 30 ++
2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 46cec20..37c87c6 100644
--- a
- Implement uip_tx_do_ipv4_tcp() to send TCP package to remote host.
- Implement uip_tcp_socket_thread() to receive TCP package from
remote host.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h |4 +
tools/kvm/uip/ipv4.c|3
- Initialize TCP/UDP socket list, ethernet buffer list.
- Allocate memory for ethernet buffer.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h |2 +
tools/kvm/uip/core.c| 58 +++
3 files changed
This patch implement tx interface for uip. uip_tx() can be called in
virtio_net_tx_thread().
It dispatches ethernet frame to ARP or IP handling code.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |2 +
tools/kvm/uip/core.c| 69
This patch implement rx interface for uip. uip_rx() can be called in
virtio_net_rx_thread().
It is a consumer of the ethernet used buffer. It sleeps until there is
used buffer avaiable and copy ethernet data into virtio iov buffers
which provided by virtio_net_rx_thread().
Signed-off-by: Asias
This patch prepares the user and tap mode for virtio net.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/virtio-net.h |4
tools/kvm/virtio/net.c |3 +++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/virtio-net.h
b/tools/kvm
This patch makes virtio net device's name convention consistent with others in
virtio/*.c. struct {net_dev, blk_dev, con_dev, rng_dev, p9_dev}.
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c |7 ---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/kvm/v
Use '-net user' to enable user model network, which enables plain user
without speical privileges to use network in guest.
Use '-net tap' to enable tap based network, which requres special
privileges.
Use '-net none' to disable virtio net.
Signed-off-by: Asia
This patch makes guest MAC address the last portion of
default guest IP address which is 192.168.33.15.
Signed-off-by: Asias He
---
tools/kvm/kvm-run.c|2 +-
tools/kvm/virtio/net.c |2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/kvm/kvm-run.c b/tools/kvm
- Call uip_rx() and uip_tx() in virtio_net_rx_thread() and
virtio_net_tx_thread() if user mode network is enabled.
- Initialize uip in virtio_net__init() if user mode network is enabled.
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c | 100
Signed-off-by: Asias He
---
tools/kvm/kvm-run.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/kvm/kvm-run.c b/tools/kvm/kvm-run.c
index a16a482..c293b49 100644
--- a/tools/kvm/kvm-run.c
+++ b/tools/kvm/kvm-run.c
@@ -42,7 +42,7 @@
#define DEFAULT_KVM_DEV
Signed-off-by: Asias He
---
tools/kvm/kvm-run.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/kvm/kvm-run.c b/tools/kvm/kvm-run.c
index c293b49..efae3c0 100644
--- a/tools/kvm/kvm-run.c
+++ b/tools/kvm/kvm-run.c
@@ -43,7 +43,7 @@
#define DEFAULT_KVM_DEV
virtio_net_{tx, rx}_thread can use ops->{tx, rx} to send and recevie
network package in both tap mode and user mode.
Suggested-by: Pekka Enberg
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c | 56 ++-
1 files changed, 45 insertions(+),
On 06/30/2011 04:56 PM, Stefan Hajnoczi wrote:
> On Thu, Jun 30, 2011 at 9:40 AM, Asias He wrote:
>> uip stands for user mode {TCP,UDP}/IP. Currently, uip supports ARP, ICMP,
>> IPV4, UDP, TCP. So any network protocols above UDP/TCP should work as well,
>> e.g., HTTP, FTP, SS
On 06/30/2011 11:32 PM, Anthony Liguori wrote:
> On 06/30/2011 03:56 AM, Stefan Hajnoczi wrote:
>> On Thu, Jun 30, 2011 at 9:40 AM, Asias He wrote:
>>> uip stands for user mode {TCP,UDP}/IP. Currently, uip supports ARP,
>>> ICMP,
>>> IPV4, UDP, TCP. So any ne
On 07/01/2011 07:46 PM, Ingo Molnar wrote:
>
> * Asias He wrote:
>
>> +static void *uip_udp_socket_thread(void *p)
>> +{
>> +struct epoll_event events[UIP_UDP_MAX_EVENTS];
>> +struct uip_udp_socket *sk;
>> +struct uip_info *info;
>> +
On 07/02/2011 04:36 AM, Pekka Enberg wrote:
> On Fri, Jul 1, 2011 at 7:50 PM, Stefan Hajnoczi wrote:
>> On Fri, Jul 1, 2011 at 12:38 AM, Asias He wrote:
>>> On 06/30/2011 04:56 PM, Stefan Hajnoczi wrote:
>>>> On Thu, Jun 30, 2011 at 9:40 AM, Asias He wrote:
>&
This patch set implements DHCP support for user mode network.
This patch set complements the "Implement user mode network for kvm
tools" patch set and makes the Zero-Configuration Network happen.
To use this:
No configuration is needed in host side, just enable DHCP in your guest OS.
This helper cooks a ethernet package and virtio header for UDP.
This patch also makes uip_udp_socket_thread() shorter.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |1 +
tools/kvm/net/uip/udp.c | 100 +++---
2 files changed, 56 insertions
struct uip_dhcp is used to present DHCP package
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 27 +++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 8333004..c414267 100644
This patch checks:
- sport and dport
- magic cookie
to detemine whether a UDP package is a DHCP package.
Signed-off-by: Asias He
---
tools/kvm/Makefile |1 +
tools/kvm/include/kvm/uip.h |4
tools/kvm/net/uip/dhcp.c| 17 +
3 files changed, 22
If DHCP DISCOVER or DHCP REQUEST is found, reply with DHCP OFFER or DHCP
ACK respectively.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |6 ++
tools/kvm/net/uip/dhcp.c| 14 ++
2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include
This patch get domain name and nameserver information from host config
file /etc/resolv.conf.
Guest can obtain DNS information through DHCP.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |6 ++
tools/kvm/net/uip/dhcp.c| 34 ++
2 files
Domain name and DNS server IP address are filled.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |4
tools/kvm/net/uip/dhcp.c| 27 +++
2 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include
The following DHCP options are filled.
- MSG_TYPE
- SERVER_ID
- LEASE_TIME
- SUBMASK
- ROUTER
- DNS_SERVER
- DOMAIN_NAME
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h | 12
tools/kvm/net/uip/dhcp.c| 42
This patch cooks a DHCP package.
Signed-off-by: Asias He
---
tools/kvm/net/uip/dhcp.c | 22 ++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/net/uip/dhcp.c b/tools/kvm/net/uip/dhcp.c
index 42e354c..612e024 100644
--- a/tools/kvm/net/uip/dhcp.c
uip_tx_do_ipv4_udp_dhcp() is used to handle DHCP packages from guest.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/uip.h |4
tools/kvm/net/uip/dhcp.c| 38 ++
2 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include
Use uip_dhcp_get_dns() in uip_init() to get DNS information from host
for DHCP.
Signed-off-by: Asias He
---
tools/kvm/net/uip/core.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/net/uip/core.c b/tools/kvm/net/uip/core.c
index 7a4b824..2e7603c 100644
--- a
DHCP packages are handled by the hypervisor, they are not sent to remote
servers. In contrast, all other non-DHCP UDP packages are sent to remote
servers.
Signed-off-by: Asias He
---
tools/kvm/net/uip/udp.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/tools/kvm
The --guest-ip option tells which IP address to give guest through DHCP.
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c|8
tools/kvm/include/kvm/virtio-net.h |5 +++--
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/tools/kvm/builtin-run.c b
The --host-mac option sets up MAC address of host.
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c| 14 ++
tools/kvm/include/kvm/virtio-net.h |1 +
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/tools/kvm/builtin-run.c
This patch makes the network options more consistent.
We are having:
--host-ip
--host-mac
--guest-ip
--guest-mac
now.
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c | 10 +-
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/tools/kvm/builtin-run.c b
- Drop static initialization
- Move the initializtion out of tap init
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c |9 -
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/tools/kvm/virtio/net.c b/tools/kvm/virtio/net.c
index f4ba79a..af9b740 100644
--- a/tools
- Drop static initialization
- Use {host,guet}_{ip,mac} to initialize
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c | 13 -
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/tools/kvm/virtio/net.c b/tools/kvm/virtio/net.c
index af9b740..739f157 100644
--- a
On 07/17/2011 05:36 PM, Sasha Levin wrote:
> On Sun, 2011-07-17 at 16:56 +0800, Asias He wrote:
>> This patch get domain name and nameserver information from host config
>> file /etc/resolv.conf.
>>
>> Guest can obtain DNS information through DHCP.
>>
>> Sign
It seems that it is a permission related problem, however, the warning
message is "/root/a: No such file or directory", any ideas?
--
Best Regards,
Asias He
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This patch changes --kvm-dev to --dev.
Signed-off-by: Asias He
---
tools/kvm/Documentation/kvm-run.txt |3 +--
tools/kvm/builtin-run.c | 10 +-
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/tools/kvm/Documentation/kvm-run.txt
b/tools/kvm/Documentation
This patch changes --virtio-9p to --9p because:
1. It's shorter
2. No need to add virtio prior to 9p since we use virtio by default
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/
This patch sort options of kvm run command to make it look tidier and
cleaner.
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c | 13 ++---
1 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/tools/kvm/builtin-run.c
index a4988aa..4279cb3 100644
This patch makes --disk option usage information include rootfs
direcotry, since --disk supports both iamges and rootfs dir.
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/tools/kvm/builtin
16550A
[1.294000] serial8250: ttyS2 at I/O 0x3e8 (irq = 0) is a 16550A
[1.309000] Non-volatile memory driver v1.3
Signed-off-by: Asias He
---
tools/kvm/term.c |7 +--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/kvm/term.c b/tools/kvm/term.c
index 2a3e1f0
On 08/10/2011 01:53 AM, Pekka Enberg wrote:
> As we boot to '/bin/sh' by default, enable kernel DHCP autoconfiguration too.
> The guest kernel needs to be configured with the following configuration
> options:
>
> CONFIG_IP_PNP=y
> CONFIG_IP_PNP_DHCP=y
>
&
On 08/10/2011 01:30 PM, Pekka Enberg wrote:
> On 8/10/11 2:56 AM, Asias He wrote:
>> This patch fixes strange characters in serial console.
>>
>> Before:
>>
>> [0.448000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> �[0.695000] serial
On 08/10/2011 01:55 PM, Pekka Enberg wrote:
> On Wed, Aug 10, 2011 at 8:43 AM, Asias He wrote:
>> On 08/10/2011 01:30 PM, Pekka Enberg wrote:
>>> On 8/10/11 2:56 AM, Asias He wrote:
>>>> This patch fixes strange characters in serial console.
>>>>
>>
On 08/10/2011 02:53 PM, walimis wrote:
> On Wed, Aug 10, 2011 at 02:15:45PM +0800, Asias He wrote:
>> On 08/10/2011 01:55 PM, Pekka Enberg wrote:
>>> On Wed, Aug 10, 2011 at 8:43 AM, Asias He wrote:
>>>> On 08/10/2011 01:30 PM, Pekka Enberg wrote:
>>&g
ping 192.168.33.1
That's it.
If you want to access the real world in guest, try NAT or Bridge the tap
device.
--
Best Regards,
Asias He
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enable something like:
T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100
in guest's /etc/inittab.
--
Best Regards,
Asias He
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eing mapped, since it's the link between slave and master
>> IRQCHIPs it shouldn't be.
>>
>> Signed-off-by: Sasha Levin
>
> Asias, does this fix the VNC mouse problem for you?
Yup. But gpm still can not work, it complains can not open /dev/psaux.
--
Best Rega
tify a separate builtin as
> opposed to an command line option in a 'kvm stat' command.
Yes. the command I am proposing is 'kvm info'. We can have a lot of
thing in 'kvm info', like register info, network info ,disk info. mem
info. Actually, Pekka suggested to have kvm
VHOST_SET_MEM_TABLE failed: Operation not supported
In vhost_set_memory(), We have
if (mem.padding)
return -EOPNOTSUPP;
So, we need to zero struct vhost_memory.
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c |2 +-
1 file changed, 1 insertion(+), 1 deletion
If vhost is enabled for a virtio device, vhost will poll the ioeventfd
in kernel side and there is no need to poll it in userspace. Otherwise,
both vhost kernel and userspace will race to poll.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/ioeventfd.h |2 +-
tools/kvm/ioeventfd.c
VHOST_SET_MEM_TABLE failed: Operation not supported
In vhost_set_memory(), We have
if (mem.padding)
return -EOPNOTSUPP;
So, we need to zero struct vhost_memory.
Signed-off-by: Asias He
---
tools/kvm/virtio/net.c |2 +-
1 file changed, 1 insertion(+), 1 deletion
If vhost is enabled for a virtio device, vhost will poll the ioeventfd
in kernel side and there is no need to poll it in userspace. Otherwise,
both vhost kernel and userspace will race to poll.
Signed-off-by: Asias He
---
tools/kvm/include/kvm/ioeventfd.h |2 +-
tools/kvm/include/kvm
Introduce struct disk_image_params to contain all the disk image parameters.
This is useful for adding more disk image parameters, e.g. disk image
cache mode.
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c| 11 +--
tools/kvm/disk/core.c | 15
On Thu, Jul 12, 2012 at 12:09 AM, Avi Kivity wrote:
> On 07/11/2012 07:08 PM, Asias He wrote:
>> VHOST_SET_MEM_TABLE failed: Operation not supported
>>
>> In vhost_set_memory(), We have
>>
>> if (mem.padding)
>> return -EOPNO
Open a disk image with O_DIRECT:
$ lkvm run -d ~/img/test.img,direct
The original readonly flag is still supported.
Open a disk image with O_DIRECT and readonly:
$ lkvm run -d ~/img/test.img,direct,ro
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c| 20
readonly flag is still supported.
Open a disk image with O_DIRECT and readonly:
$ lkvm run -d ~/img/test.img,direct,ro
Signed-off-by: Asias He
---
tools/kvm/builtin-run.c| 23 +++
tools/kvm/disk/blk.c |4 ++--
tools/kvm/disk/core.c
Hi folks,
This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk
device accelerator. Compared to userspace virtio-blk implementation, vhost-blk
gives about 5% to 15% performance improvement.
Asias He (5):
aio: Export symbols and struct kiocb_batch for in kernel aio usage
This is useful for people who want to use aio in kernel, e.g. vhost-blk.
Signed-off-by: Asias He
---
fs/aio.c| 37 ++---
include/linux/aio.h | 21 +
2 files changed, 39 insertions(+), 19 deletions(-)
diff --git a/fs/aio.c b/fs
This is useful for people who want to create an eventfd in kernel,
e.g. vhost-blk.
Signed-off-by: Asias He
---
fs/eventfd.c |1 +
1 file changed, 1 insertion(+)
diff --git a/fs/eventfd.c b/fs/eventfd.c
index d81b9f6..b288963 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -402,6 +402,7
.
Signed-off-by: Asias He
---
drivers/vhost/Kconfig | 10 +-
drivers/vhost/Makefile |4 +++-
drivers/vhost/vhost.c | 48
drivers/vhost/vhost.h |1 +
4 files changed, 61 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost
vhost-net's feature does not deseve the name VHOST_FEATURES. Use
VHOST_NET_FEATURES instead.
Signed-off-by: Asias He
---
drivers/vhost/net.c |4 ++--
drivers/vhost/test.c |4 ++--
drivers/vhost/vhost.h | 12 ++--
3 files changed, 10 insertions(+), 10 deletions(-)
IOPS boost : 8.4%, 15.3%, 10.4%, 14.6%
Latency improvement: 8.5%, 15.4%, 10.4%, 15.1%
2) Fio with vsync ioengine on Fusion IO device
With bio-based IO path, sequential read/write, random read/write
IOPS boost : 10.5%, 4.8%, 5.2%, 5.6%
Latency improvement: 11.4%, 5.0%, 5.2%, 5.8%
Signed-off-by
: 8.4%, 15.3%, 10.4%, 14.6%
Latency improvement: 8.5%, 15.4%, 10.4%, 15.1%
2) Fio with vsync ioengine on Fusion IO device
With bio-based IO path, sequential read/write, random read/write
IOPS boost : 10.5%, 4.8%, 5.2%, 5.6%
Latency improvement: 11.4%, 5.0%, 5.2%, 5.8%
Signed-off-by: Asi
Hello Jeff,
On 07/13/2012 12:06 AM, Jeff Moyer wrote:
Asias He writes:
Hi folks,
This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk
device accelerator. Compared to userspace virtio-blk implementation, vhost-blk
gives about 5% to 15% performance improvement.
Asias He
Hi James,
On 07/13/2012 01:50 AM, James Bottomley wrote:
On Thu, 2012-07-12 at 23:35 +0800, Asias He wrote:
This is useful for people who want to use aio in kernel, e.g. vhost-blk.
Signed-off-by: Asias He
---
fs/aio.c| 37 ++---
include/linux
On Fri, Jul 13, 2012 at 12:02 AM, Pekka Enberg wrote:
> On Thu, Jul 12, 2012 at 6:46 PM, Asias He wrote:
>> vhost-blk is a in kernel virito-blk device accelerator. vhost-blk is
>> similar with vhost-net. It handles virito-blk's request and completion
>> in host ker
: Asias He
---
block/blk-merge.c | 80 ++---
1 file changed, 45 insertions(+), 35 deletions(-)
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 160035f..576b68e 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -110,6 +110,49
%
Latency improvement: 32%, 17%, 21%, 16%
2) Fusion IO device
With bio-based IO path, sequential read/write, random read/write
IOPS boost : 11%, 11%, 13%, 10%
Latency improvement: 10%, 10%, 12%, 10%
Asias He (3):
block: Introduce __blk_segment_map_sg() helper
block: Add
ens Axboe
Cc: Tejun Heo
Cc: Shaohua Li
Cc: linux-ker...@vger.kernel.org
Signed-off-by: Christoph Hellwig
Signed-off-by: Minchan Kim
Signed-off-by: Asias He
---
block/blk-merge.c | 37 +
include/linux/blkdev.h |2 ++
2 files changed, 39 inserti
by: Christoph Hellwig
Signed-off-by: Minchan Kim
Signed-off-by: Asias He
---
drivers/block/virtio_blk.c | 203 +++-
1 file changed, 163 insertions(+), 40 deletions(-)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 774c31d
: Asias He
---
fs/eventfd.c |1 +
1 file changed, 1 insertion(+)
diff --git a/fs/eventfd.c b/fs/eventfd.c
index d81b9f6..b288963 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -402,6 +402,7 @@ struct file *eventfd_file_create(unsigned int count, int
flags)
return file
S. Tsirkin
Cc: linux-ker...@vger.kernel.org
Cc: kvm@vger.kernel.org
Cc: virtualizat...@lists.linux-foundation.org
Signed-off-by: Asias He
---
drivers/vhost/Kconfig | 10 +
drivers/vhost/Makefile |2 +
drivers/vhost/blk.c| 600
dri
: virtualizat...@lists.linux-foundation.org
Signed-off-by: Asias He
---
fs/aio.c| 37 ++---
include/linux/aio.h | 21 +
2 files changed, 39 insertions(+), 19 deletions(-)
diff --git a/fs/aio.c b/fs/aio.c
index 55c4c76..93dfbdd 100644
vhost-net's feature does not deseve the name VHOST_FEATURES. Use
VHOST_NET_FEATURES instead.
Cc: Michael S. Tsirkin
Cc: linux-ker...@vger.kernel.org
Cc: kvm@vger.kernel.org
Cc: virtualizat...@lists.linux-foundation.org
Signed-off-by: Asias He
---
drivers/vhost/net.c |4 ++--
dr
: Michael S. Tsirkin
Cc: linux-ker...@vger.kernel.org
Cc: kvm@vger.kernel.org
Cc: virtualizat...@lists.linux-foundation.org
Signed-off-by: Asias He
---
drivers/vhost/Kconfig | 10 +-
drivers/vhost/Makefile |4 +++-
drivers/vhost/vhost.c | 48
Hi folks,
[I am resending to fix the broken thread in the previous one.]
This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk
device accelerator. Compared to userspace virtio-blk implementation, vhost-blk
gives about 5% to 15% performance improvement.
Asias He (5):
aio
On Fri, Jul 13, 2012 at 12:05 AM, Pekka Enberg wrote:
> On Thu, Jul 12, 2012 at 6:18 PM, Asias He wrote:
>> With Direct I/O, file reads and writes go directly from the applications
>> to the storage device, bypassing the operating system read and write
>> caches. This is us
Hi Christoph,
On 07/14/2012 03:49 PM, Christoph Hellwig wrote:
Please send a version that does direct block I/O similar to xen-blkback
for now.
Seems xen-blkback converts the guest IO request to host bio and submit
them directly. I was wondering whether this has a performance gain
compared t
On 07/16/2012 07:58 PM, Stefan Hajnoczi wrote:
On Thu, Jul 12, 2012 at 4:35 PM, Asias He wrote:
This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk
device accelerator. Compared to userspace virtio-blk implementation, vhost-blk
gives about 5% to 15% performance improvement
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