Displaying 20 results from an estimated 21 matches for "neocleuse".
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neocleus
2007 Oct 10
6
Questions about direct hardware access, DMA, etc
Hi folks, this is my first post to the mailing list. I have a general
question about the state of various efforts aimed at granting a domU
physical access to a hardware device like a NIC, graphics card, etc.
I generally understand the challenges this poses to a hypervisor in
terms of interrupts and DMA. I am specifically wondering about what
options are available when running non-Paravirtualized
2007 Dec 28
3
How to get the c/s 15011(unstable)
Folks,
I download the Neocleus 1:1 patch from following link:
http://lists.xensource.com/archives/html/xen-devel/2007-05/msg01144.html
Currently I want to add Neocleus 1:1 Patch to the xen-3.1.0 to make the
HVM guest grab the device directly. When I add these patches and
recompile and install the Xen source and try to start the HVM guest, the
HVM guest can not start and the system hang.
2007 Sep 21
5
[NEO 1:1] Nativedom 1:1 Mapping
This patch applies to c/s #15522.
Nativedom 1:1 memory enabling - Done by "stealing" memory from Xen''s
e820 at
boot time. The pages are later being allocated to NativeDom using a
special
allocator.
x86-64
======
The 512KB-1MB region is remapped (because of the ROMs) to an address
above 16MB.
As far as NativeDom can see:
1. The 0-512KB
2007 May 30
30
[VTD][patch 0/5] HVM device assignment using vt-d
The following 5 patches are re-submissions of the vt-d patch.
This set of patches has been tested against cs# 15080 and is
now much more mature and tested against more environments than
the original patch. Specifically, we have successfully tested
the patch with following environements:
- 32/64-bit Linux HVM guest
- 32-bit Windows XP/Vista (64-bit should work but did not test)
-
2008 Jun 27
2
PCI device assignment to guests (userspace)
Userspace patches for the pci-passthrough functionality.
The major updates since the last post are:
- Loop to add passthrough devices in pc_init1
- Handle errors in read/write calls
- Allow invocation without irq number for in-kernel irqchip
Other than this, several small things were fixed according to review comments received last time.
2008 Jun 27
2
PCI device assignment to guests (userspace)
Userspace patches for the pci-passthrough functionality.
The major updates since the last post are:
- Loop to add passthrough devices in pc_init1
- Handle errors in read/write calls
- Allow invocation without irq number for in-kernel irqchip
Other than this, several small things were fixed according to review comments received last time.
2008 Jun 16
5
GPLPV / Passing devices to HVM
Hello everyone,
just wondered after I read about devices passed through in HVM if the
following if still true: (for Xen3.2.1)
- a Domain running in HVM cannot get forwarded any other device than a
USB device.
- the USB device forwarding is not too stable
- PCI forwarding is not possible without processor support and Xen support.
- The GPLPV tools won''t change anything with that.
2007 May 31
4
[RFC][PATCH 4/6] HVM PCI Passthrough (non-IOMMU)
int.patch:
- Supports only level-triggered interrupts. Edge interrupts support
will be
added shortly (should be fairly simple)
- Change polarity trick: in order to reflect the external device''s
assertion
state, the ioapic pin gets its polarity changed whenever an
interrupt
occur. So an interrupt is generated when the _external_ line is
asserted
(then,
2007 Jan 08
6
Xen 3.0.4 - Ballooning
Hi,
Maybe it''s a dumb question, but I''m actually trying to understand how
the memory allocation works within Xen.
I try to give 128MB to a domU and see if it increases for example when I
"nano" a 500mb file, but the process
just get killed when it reachs the 128MB memory limit.
How do I configure the guests so they can ask for more memory until a
limit is reached
2007 Jun 08
3
map_domain_page
Hi,
Can anybody shed light on the Xen function map_domain_page (in
xen/arch/x86/x86_32/domain_page.c)? What is it doing?
Jinpeng Wei
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2007 May 31
0
[RFC][PATCH 6/6] HVM PCI Passthrough (non-IOMMU)
libpci.patch:
- A library to access the PCI config space, probe the bus for
devices, etc.
It is basically a copy & paste from the libpci app.
- Uses the 0xcf8/0xcfc method to read the config.
- PIO/MMIO low-level access functions.
Signed-off-by: Alex Novik <alex@neocleus.com>
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Xen-devel mailing list
2009 Jul 04
0
A problem about xen no-iommu graphics card passthough
Hi!
I want to make windows work with native graphics card on xen with no iommu (no vt-d) support. With many googling, I find that xen with Neocleuse 1:1 No-IOMMU passthough patches maybe can meet my requestment.
I download and compile a copy of direct-io.hg source, and pass my graphics card to hvm windows domU. I hide the graphics card from dom0 linux with backpci.hide boot option, and allow dom0...
2008 Apr 21
2
Decent motherboard with VT-d (Intel) support?
I know most of the motherboards based off of the Intel Q35 northbridge
usually have VT-d options for it to be enabled or disabled in the
BIOS. I''ve heard the same for Intel 5400''s and Intel 3200/3210''s but
been looking through manuals for various server boards and don''t see
VT-d options in the BIOS.
However, I was wondering if anyone had success stories or
2007 Jan 15
8
Modular Xen
It seems to me that Xen is full of stuff that aren''t beneficial for
everybody, this includes NUMA, ACM and other stuff that certain
companies try to introduce... In a better world, the Xen binary would
have been more sleek and fast, and those extra features should be
loaded via stating a Module boot line in Grub. This way, testing would
be easy and it''s more elegant than using a
2009 Apr 12
30
good progress on pci vga passthrough in xen-3.4-rc1
Platform : Nehalem, official Intel x58 with Core i7 920 (dx58so)
Main (Console): Nvidia 9500 GT PCI Express
Secondary: Nvidia 8800 GTS PCI Express
Yes, I binned the ASUS P6T due to bad VT-d support in the BIOS.
With the latest BIOS from Intel, the dx58so has enable/disable for VT-d, ICH FLR and Interrupt Mapping! Helped a lot with getting this working ...
Dom0: 2.6.18-xen0 (built from
2008 Dec 15
5
pci passthrough under xen-3.3 without VT-d
Hi all!
I''m hoping someone here might be able to help. I''m familiar with several UNIX''es, though farily new to Linux...
I''m running RHEL 5.2. I''ve got the RHEL kernel headers installed, etc, and compiled xen-3.3.
Once that was built, I rebuilt libvirt, etc, the kernel, and all the modules. The whole mess boots and runs fine... mostly.
My hardware
2007 Mar 26
3
[PATCH] pciback: restore PCI BARs on D3->D0 transition
Ever since xen-unstable cset 14308 ("pci back: Fix registration of of
filters on subsections of config space") I''ve been getting an MCA on the
*2nd* boot of a driver domain using an e1000 NIC. Cset 14308 allowed
the proper setup of the PM control registers, so the NIC is put in the
D3 power state when the driver domain shuts down. Unfortunately,
pci_set_power_state()
2008 Nov 29
24
pv_ops dom0 testing
I am trying to get a pv_ops dom0 working for testing,
but I am running into an elf_init error:
(XEN) *** LOADING DOMAIN 0 ***
(XEN) elf_init: not an ELF binary
Full output attached.
>From what I have read on the mailing lists, it seems
that it is usually a problem with either grub or a
corrupt dom0 kernel.
Attached is my kernel config (2.6.28-rc6-tip).
I followed the instructions on:
2007 Mar 28
2
[PATCH 2/3] User-space grant table device - main driver
A character device for accessing (in user-space) pages that have been
granted by other domains.
Signed-off-by: Derek Murray <Derek.Murray@cl.cam.ac.uk>
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2007 Aug 02
0
Enabling a splash screen on Dom0 kernel
I''m trying to use Splashy (splashy.alioth.debian.org) to display a .png
splash screen while the kernel boots under Xen Dom0 (Debian Etch).
Splashy dies with "Splashy ERROR: Couldn''t splashy_start_splashy().
Error -2", which seems to me to be a problem with the fb driver (all
other fb apps die as well with:
"map: vt01 => fb0
can handle only packed pixel frame