search for: ioapic_ack

...yed by the device assigned to the HVM. The patch adds a timer, and the time out value is sufficient large to tolerant the delaying used to wait for the physical interrupt deassertion. The patch works well with the situation that SATA disk shares interrupt with PCIe NIC. And for vtd=1, the ioapic_ack=new method also works well. Signed-off-by: Xin, Xiaohui<xiaohui.xin@intel.com Signed-off-by: Kevin Tian <kevin.tian@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

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,

...t; and assign PCI device - use pciback.hid=(02:00.0) to "hide" device from dom0 - use pci = [ ''02:00.00'' ] in /etc/xen/hvm.conf to assign device to HVM domain - set acpi and apic to 0 in hvm.conf as current patch only works with PIC - grub.conf: use "ioapic_ack=old" for /boot/xen.gz (io_apic.c contains code for avoiding global interrupt problem) 4) description of hvm PCI device assignment design: - pci config virtualization - Control panel and qemu changed to pass assigned PCI devices to qemu. - A new file ioemu/hw/dpci.c reads assigned d...

...ts. Since there was no indication that there would be anything wrong with the ''new'' IO-APIC ack method added back then, we finally decided to drop this patch recently from SLE11, to find that the subsequent release candidate failed to work on at least on system without using "ioapic_ack=old". With that knowledge I think it is now reasonable to include that patch in -unstable, as the introduction of the ''new'' ack method was only to address issues with certain chipsets silently setting up alternative IRQ routes when RTEs in secondary IO-APICs got masked. Here...

...stalled XCI to the machine, but it hangs on booting process. Arch is i686 and my laptop is lenovo thinkpad T400 (vPro Core2 with VT-x, VT-d and TXT) My grub configuration is below. (It is default configuration) set root=(xenclient-root) multiboot /boot/xen.gz console=com1 iommu=1 max_dom0_vcpus=1 ioapic_ack=old com1=115200/921600,8n1,magic module /boot/vmlinuz console=xencons root=/dev/mapper/xenclient-root autostart module /boot/initramfs.gz module /boot/lcp_data.bin module /boot/sinit_acm.bin It hangs without any message, So I set console=com1,vga on xen, and remove console argument on vmlinuz to...

...on both servers appear to have more active vcpus Case 1 is now considered stable by the customer after I provided a private fix which caused Xen to never consider turning on EOI Broadcast Suppression. I have re-attached a patch which allows this problem to be "fixed" by specifying "ioapic_ack=new" on the command line, rather than requiring a patch and recompile of Xen. Case 2 has only been seen once (this morning) so we currently have no idea as to its reproducibility. However, given that this hardware is fairly common in our test infrastructure, i would say that it is fairly rar...

Recently our automated testing system has caught a curious assertion while testing Xen 4.1.5 on a HaswellDT system. (XEN) Assertion ''(sp == 0) || (peoi[sp-1].vector < vector)'' failed at irq.c:1030 (XEN) ----[ Xen-4.1.5 x86_64 debug=n Not tainted ]---- (XEN) CPU: 0 (XEN) RIP: e008:[<ffff82c48016b2b4>] do_IRQ+0x514/0x750 (XEN) RFLAGS: 0000000000010093 CONTEXT:

...rocha@newcastle.ac.uk> Committed-by: Keir Fraser <keir@xen.org> changeset: 24870:9bf3ec036bef user: Andrew Cooper <andrew.cooper3@citrix.com> date: Thu Feb 23 09:58:47 2012 +0000 IO-APIC: Prevent using EOI broadcast suppression if user specified ioapic_ack=new on the command line. Currently, if EOI broadcast suppression is advertised on the BSP LAPIC, Xen will discard any user specified option regarding IO-APIC ack mode. This patch introduces a check which prevents EOI Broadcast suppression from forcing the IO-APIC ack m...