similar to: Making a hypercall from a HVM Windows domain

I am having problems with save/restore under 3.3.1 in the GPLPV drivers. I call hvm_shutdown(xpdd, SHUTDOWN_suspend), but as soon as I lower IRQL (enabling interrupts), qemu goes to 100% CPU and the DomU load goes right up too. Xentrace is showing a whole lot of this going on: CPU0 200130258143212 (+ 770) hypercall [ rip = 0x000000008020632a, eax = 0xffffffff ] CPU0 200130258151107 (+

I''m just doing some testing on the gplpv drivers with different ways of handling interrupts, and I''m trying a scheme where each xen device (eg vbd/vif) driver attaches to the same IRQ as the pci driver, and each handles it in sequence. In testing though, I noticed the following when logging what each ISR is doing: 60.32381439 - evtchn event on port 5 60.32384109 - port 5

I really need to have the ability to tie event channel port''s to interrupts for my gplpv drivers under Windows. Is anyone working on anything like this? Does MSI allow more than one interrupt per PCI device? Thanks James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

For an SMP Linux HVM guest with PV drivers inserted, when we do save/restore (or LiveMigration) for the guest, it might panic after it''s restored. The panic point is inside ap_suspend(): .... while (info->do_spin) { cpu_relax(); read_lock(&suspend_lock); HYPERVISOR_yield(); ----> guest might panic on the invocation of this function.

I''m tinkering with some code to be able to talk to the hypervisor from Windows, with the ultimate aim to get a usable xenbus. So far I''ve created a driver for the Xen PCI ''device'', and (hopefully) mapped the hypercall space given by the CPUID call... What is the simplest hypercall I can make to get an answer from the hypervisor to tell me that it''s

Hi Trying to get WinXP HVM to install as domU on AMD. Got latest Xen Kernel and Xen package (NOT unstable or debug). When start, a window pops up for few seconds.. then it dies and another one comes up... and it disappears too. (Xen is trying to restart and giving up because the restart happens in 2 seconds..) It seems DomU is not able to read/understand something from Cirrus VGABIOS.

Hi Trying to get WinXP HVM to install as domU on AMD. Got latest Xen Kernel and Xen package (NOT unstable or debug). When start, a window pops up for few seconds.. then it dies and another one comes up... and it disappears too. (Xen is trying to restart and giving up because the restart happens in 2 seconds..) It seems DomU is not able to read/understand something from Cirrus VGABIOS.

I just about have my PV block device drivers booting, except just before the login screen appears I get a message that the registry couldn''t be written out. I''m pretty sure that this is because some data from the int13 interface provided by the qemu intel ide driver that has been written, hasn''t actually made it to the block device (lvm volume in my case). I''ve

I''ve recently noticed that my windows crash dumps fail at around 40-50% under GPLPV. ''xm dmesg'' shows the following: (XEN) grant_table.c:350:d0 Iomem mapping not permitted ffffffffffffffff (domain 865) At first I thought that the cause was just a bug in my grant ref code but it just occurred to me that this could be happening when Windows tries to write out the

Xen Developers, I noticed that my PV ops guests cause the hypervisor to invoke hypercall_page_initialise twice from traps.c (i.e. through wrmsr_hypervisor_regs), for different hypercall_page addresses. Looking at the code, I see hvmloader.c causing one of those, in its main. I read the HVM Loader Xen wiki page, Googled, spelunked the source, etc. but cannot find where / why the other hypercall

The initial values of the wallclock time in the shared info page are set for PVHVM guests when the hypercall page is initialized, since the hypercall page is not reinitialized on resume, the hypervisor wallclock time is not properly set on resume. Fix it by forcing an update of the wallclock values when the shared info page is mapped. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>

-- Juergen Gross Principal Developer IP SW OS6 Telephone: +49 (0) 89 636 47950 Fujitsu Siemens Computers e-mail: juergen.gross@fujitsu-siemens.com Otto-Hahn-Ring 6 Internet: www.fujitsu-siemens.com D-81739 Muenchen Company details: www.fujitsu-siemens.com/imprint.html _______________________________________________

The attached patch fixes the save/restore issue seen with 32bit Windows guest VMs. The root cause is that current Xen doesn''t intercept SYSENTER-related MSRs for 32bit guest VMs. As a result, the guest_sysenter_xxx fields contain incorrect values and shouldn''t be used for save/restore. This patch checks the LMA bit of EFER register in the save/restore code path. Please apply it

How should I be detecting a block-configure operation done in Dom0 in a HVM DomU? Under Debian Lenny''s Xen 3.2.1, when I execute such a command, Dom0 writes to the backend values ''params'' and ''type'', twice, but doesn''t update the ''sectors'' value to match the new device, or initiate a state change. Given that, the best I can

Hi, I am currently working on hypercalls from HVM guests. I started with a set of Intel patches posted to xen-devel last September. I currently have code running for both 32-bit and 64-bit HVM guests running on a 64-bit hypervisor. I am curious why none of the original patches were accepted, and what I might need to do to make them acceptable. Is other work being done in this area that

Hello List, I have a small problem with the ring when transferring blocks the id on the response is different from the request. This is the boot up read, count 0. The guest requests block 0, it has to be located at 7c00. I go ahead and create a REQUEST with this data: ring_req = RING_GET_REQUEST(priv,priv->req_prod_pvt); ring_req->id = 9; ring_req->nr_segments=1; ring_req->operation

Add public HVM definitions header for firmware passthrough support (including comment describing the feature''s use). In addition this header is used to collect the various xenstore string values that are used in HVMLOADER. Signed-off-by: Ross Philipson <ross.philipson@citrix.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org

The series "HVM firmware passthrough" series in Jan 2013 from Ross Philipson cause two regressions for HVM guests which sadly found their way into the Xen 4.3 release. The first regression causes an incorrect count of tables to be placed in the main header, and can be seen by running dmidecode in any applicable HVM domain. The second regression found its way into the public ABI, making

1. Shouldn''t the GPLPV drivers take care of the (bad) clock drift I''m experiencing in my Windows XP HVM? Or is there some other way around this problem that I haven''t been able to find on Google? How can I tell if the GPLPV drivers are active? I''ve added the /gplpv switch to the boot.ini file and the virtual NIC is definitely using the GPLPV version but other

Hello, All, Today one of our servers was crashed, after I rebooted the server, one vps can not boot up, and it needs fsck, after I run fsck command, a lot of files lost, and also some file content was changed. Not sure how could it happen, do you have any advice that can avoid this or recover the data? Thanks. _______________________________________________ Xen-users mailing list