similar to: lguest virtio_descriptor structure on 64bit

On Thu, 2007-08-16 at 19:13 -0400, Gregory Haskins wrote: > Here is the v3 release of the patch series for a generalized PV-IO > infrastructure. It has v2 plus the following changes: Hi Gregory, This is a lot of code. I'm having trouble taking it all in, TBH. It might help me if we could to go back to the basic transport implementation questions. Transport has several parts. What

On Thu, 2007-08-16 at 19:13 -0400, Gregory Haskins wrote: > Here is the v3 release of the patch series for a generalized PV-IO > infrastructure. It has v2 plus the following changes: Hi Gregory, This is a lot of code. I'm having trouble taking it all in, TBH. It might help me if we could to go back to the basic transport implementation questions. Transport has several parts. What

For virtualization, we've developed virtio_ring for efficient communication. This would also work well for userspace-kernel communication, particularly for things like the tun device. By using the same ABI, we can join guests to the host kernel trivially. These patches are fairly alpha; I've seen some network stalls I have to track down and there are some fixmes. Comments welcome!

For virtualization, we've developed virtio_ring for efficient communication. This would also work well for userspace-kernel communication, particularly for things like the tun device. By using the same ABI, we can join guests to the host kernel trivially. These patches are fairly alpha; I've seen some network stalls I have to track down and there are some fixmes. Comments welcome!

The following changes since commit 3c92ec8ae91ecf59d88c798301833d7cf83f2179: Linus Torvalds (1): Merge branch 'next' of git://git.kernel.org/.../paulus/powerpc are available in the git repository at: ssh://master.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus.git master

The following changes since commit 3c92ec8ae91ecf59d88c798301833d7cf83f2179: Linus Torvalds (1): Merge branch 'next' of git://git.kernel.org/.../paulus/powerpc are available in the git repository at: ssh://master.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus.git master

The PAGE_SIZE constant should be used instead of taking an extra parameter. Moreover, once we use PAGE_SIZE, we can use PAGE_ALIGN() instead of having it open coded. I've only compile tested the lguest launcher as I'm on a 64-bit system but I've tested the virtio-pci device with KVM. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> diff --git

The PAGE_SIZE constant should be used instead of taking an extra parameter. Moreover, once we use PAGE_SIZE, we can use PAGE_ALIGN() instead of having it open coded. I've only compile tested the lguest launcher as I'm on a 64-bit system but I've tested the virtio-pci device with KVM. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> diff --git

From 5d85cee1fb14608b79b5b6103d8be2d90bb76ca4 Mon Sep 17 00:00:00 2001 From: Anthony Liguori <aliguori@us.ibm.com> Date: Mon, 12 Nov 2007 21:30:26 -0600 Subject: [PATCH] virtio: simplify config mechanism. 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

From 5d85cee1fb14608b79b5b6103d8be2d90bb76ca4 Mon Sep 17 00:00:00 2001 From: Anthony Liguori <aliguori@us.ibm.com> Date: Mon, 12 Nov 2007 21:30:26 -0600 Subject: [PATCH] virtio: simplify config mechanism. 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

virtio allows drivers to suppress callbacks (ie. interrupts) for efficiency (no locking, it's just an optimization). There's a similar mechanism for the host to suppress notifications coming from the guest: in that case, we ignore the suppression if the ring is completely full. It turns out that life is simpler if the host similarly ignores callback suppression when the ring is

virtio allows drivers to suppress callbacks (ie. interrupts) for efficiency (no locking, it's just an optimization). There's a similar mechanism for the host to suppress notifications coming from the guest: in that case, we ignore the suppression if the ring is completely full. It turns out that life is simpler if the host similarly ignores callback suppression when the ring is

It seems that VCPU system time isn''t monotonic (using 3.0.4). It seems it might be correlated to when a VCPU is switched across real CPUs but I haven''t conclusively proved that. But e.g.: { old = { time = { version = 0x4ec pad0 = 0xe8e0 tsc_timestamp = 0x22cc8398b7194 system_time =

I have a numerical vector which contains a (poorly) formatted time column, which, in theory, should be HHMM, but was distributed as an integer, so, for 12:15 am, it is saved as "15" (e.g. HHMM = 0015 with the zeroes stripped). I'm trying to use this in conjunction with strptime, but I'm thinking because each time is an integer ranging from 1 to 4 digits, I probably need to

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 tap0 192.168.19.1 > > # lguest

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 tap0 192.168.19.1 > > # lguest

From: Rusty Russell <rusty@rustcorp.com.au> lguest does some fairly lowlevel things to support a host, which normal modules don't need: math_state_restore: When the guest triggers a Device Not Available fault, we need to be able to restore the FPU __put_task_struct: We need to hold a reference to another task for inter-guest I/O, and put_task_struct() is an inline function which

From: Rusty Russell <rusty@rustcorp.com.au> lguest does some fairly lowlevel things to support a host, which normal modules don't need: math_state_restore: When the guest triggers a Device Not Available fault, we need to be able to restore the FPU __put_task_struct: We need to hold a reference to another task for inter-guest I/O, and put_task_struct() is an inline function which

On Mon, Sep 21, 2009 at 04:52:21PM +0930, Rusty Russell wrote: > > We still assume the Guest and Host have the same PAGE_OFFSET settings, > but now we don't assume 0xC0000000. > > Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> > Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> > --- > drivers/lguest/page_tables.c | 6 ++---- > 1 file

On Mon, Sep 21, 2009 at 04:52:21PM +0930, Rusty Russell wrote: > > We still assume the Guest and Host have the same PAGE_OFFSET settings, > but now we don't assume 0xC0000000. > > Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> > Cc: Matias Zabaljauregui <zabaljauregui at gmail.com> > --- > drivers/lguest/page_tables.c | 6 ++---- > 1 file