similar to: Using SYSCALL/SYSRET with a minios kernel

Hi, I hope I''m right here. If not then please point me in the right direction. My problem in short: I have problems using (pinning, mmu_update) physical pages from 0x900000 to 0xB1000 usualy. I''m writing my own little amd64 64bit toy kernel (based on Mini-OS as starting point) for xen and I run into problems with the way the start of day sets up the physical pages. My kernel

Hi, first of all, apologies if this isn't the right mailing list but it was the best I could find. If you know a better mailing list, please tell me. Today I tried to defrag one of my filesystems. It's a 3.5T large filesystem that has 6 software-raids in the bottom and then merged together using lvm. I was running ext3 but removed the journal flag with thor:~# tune2fs -O ^has_journal

Hi, maybe I'm missing something fundamental but I can't seem to be able to build a custom kernel-image.deb for xen. I was able to build the linux-2.6 with xen images from the repository and build a vmlinux file using the directions from upstream Xen. But I've had no luck with make-kpkg. Can anyone give me some hints? MfG Goswin

Hi, has anyone build a linux-2.6.16 deb that can be used to compile xen? The default unstable package does not seem to have any xen patches included, only the /debian/arch/amd64/xen dir for the .config files. MfG Goswin

Package: xen-utils-common Version: 3.4.2-1 Severity: important Hi, installing xen-utils-common on a non xen system fails with: Installing new version of config file /etc/init.d/xend ... Starting Xen daemons: xenfs failed! invoke-rc.d: initscript xend, action "start" failed. dpkg: error processing xen-utils-common (--configure): subprocess installed post-installation script returned

I''m a bit confused about the kernel used by the Xen hypervisor. I''ve just installed a 30 day trial of XenSource''s Enterprise edition software on a Sun Fire 4600. It was my understanding that it would install a 64 bit hypervisor, however, upon running uname -a on my machine, I am told that I am running a i686 kernel. Did I miss something? How does one use a 64 bit

Package: xen-3 Version: 3.1-2 Severity: normal Hi, when a domain crashed and enable-dump is yes then the wrong path is tried to dump core: ERROR Internal error: Could not open corefile /var/xen/dump/2007-0925-1045.08-Moose.11.core (2 = No such file or directory) MfG Goswin -- System Information: Debian Release: 4.0 APT prefers stable-security APT policy: (1001,

Hi, I implemented my own Hypercall in xen. Now I wish my application under dom0 could talk to Xen via my hypercall. Currently, I make a stub in dom0''s kernel, which works as a proxy to forward the request. So, my application first makes a system call to dom0, which then makes hypercall to xen. Is this design necessary? May I call hypercalls from user application under dom0 directly?

Hello ! Because of a special config of my grub boot system, i try to export in a domU, in read only mode, one of my disk partition mounted in the dom0 (in RW) and i don''t succeed because xen refuse to export this disk partition in a domU. extract of the conf : disk = [ ''phy:/dev/sda,ioemu:hda,r'' , ''phy:/dev/sda6,ioemu:sda6,r]'' ,

Hi! I would like to know the status of the frequency scaling in XEN. I found a web site saying that XEN doesn’t work with frequency scaling, at the other hand I found some fixes for powernow-k8 to get rid of some messages. I have an AMD64. powerno-k8 works find with non-XEN kernels, but with XEN-kernels I get the error: powernow-k8: Found 1 AMD Athlon(tm) 64 Processor 3400+ processors

Processing commands for control at bugs.debian.org: > submitter 252771 Goswin von Brederlow <goswin-v-b at web.de> Bug #252771 [bsign] FTBFS: wrong architecture Changed Bug submitter to 'Goswin von Brederlow <goswin-v-b at web.de>' from 'Goswin von Brederlow <brederlo at informatik.uni-tuebingen.de>' > submitter 268152 Goswin von Brederlow <goswin-v-b at

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-12:04.sysret Security Advisory The FreeBSD Project Topic: Privilege escalation when returning from kernel Category: core Module: sys_amd64

hi. trying to understand the idea behind _notify in #define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do { \ RING_IDX __old = (_r)->sring->req_prod; \ RING_IDX __new = (_r)->req_prod_pvt; \ wmb(); /* back sees requests /before/ updated producer index */ \ (_r)->sring->req_prod = __new;

Hi I have a doubt regarding Mini-OS and Xen. If it is true that Xen reserves in the virtual address space the top 64MB on 32bit systems and 168MB in PAE systems, doesn''t it exist with a Mini-OS kernel which has only 32MB in size i.e. going by its default config file? Obviously I''m missing something. Regards, Bhaskar. _______________________________________________ Xen-devel

I was following an email chain in the xen mailing list on HVM hypercalls on grant tables and the email chain link is below http://lists.xensource.com/archives/html/xen-devel/2007-03/msg00688.html This link says that we need not required hypercalls to share memory b/w HVM''s. But as far as my understanding of sharing memory is concerned, I think the memory is shared using grant table

Get blktap2 running on pvops. This mainly adds eventfd support to the userland code. Based on some prior cleanup to tapdisk-queue and the server object. We had most of that in XenServer for a while, so I kept it stacked. 1. Clean up IPC and AIO init in tapdisk-server. [I think tapdisk-ipc in blktap2 is basically obsolete. Pending a later patch to remove it?] 2. Split tapdisk-queue into

Good morning, I am new to Xen, and trying to understand how Xen works. I have some questions about virtualization of interrupts on Xen. Thanks in advance for all helps. 1) From papers about Xen architecture found at Xen homepage, Xen seemingly intercepts interrupts of Dom1 (paravirtualization). So interrupts occur in Dom1''s context are sent to Xen, and Xen handles them. Is that correct?

Hi, I have a question about memory page tables in Xen. As far as I understood, every modification to page table will go through Xen(hypervisor). Is it so that all page tables are actually allocated in Xen(hypervisor) instead of guest OS(domain)? Also, is it the case that Xen(hypervisor) needs to maintain a page table for each process running in every domain? Thanks Haifeng

All the resources allocated based on xen_blkif_reqs are global in blkback. While (without having measured anything) I think that this is bad from a QoS perspective (not the least implied from a warning issued by Citrix''es multi-page-ring patches: if (blkif_reqs < BLK_RING_SIZE(order)) printk(KERN_WARNING "WARNING: " "I/O request space (%d reqs) < ring

You''re right scout the last line. Out looks like xapi is waiting on tapdisk to plug a key into xenstore. Perhaps a udev rule problem? Perhaps someone who knows more about tapdisk than I well be able to diagnose this tomorrow. Mike Sent from Samsung tablet Sébastien RICCIO <sr@swisscenter.com> wrote: Of course, here it is attached. Last line seems interesting. However tapdisk2