search for: ivrs_ioap

From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> This patch add an additional logic to check for the often case when the special->handle is not initialized due to firmware bugs. but the special->usedid is correct. If users overide this using the command line option ivrs_ioapic, then it should use the value instead. --- This patch is supposed to follow the patches: [Xen-devel] [PATCH RFC 2/2] AMD IOMMU: allow command line overrides for broken IVRS tables Changes in V2: - Fix logic to match the special->used_id with the value provided by users. xen/drivers/passthr...

Hi! From other people posting to this list, I know that there has been a bug related to the issue described in Xen Security Advisory 36 that disables iommu for some AMD users like me. However, even when passing "iommu=no-amd-iommu-perdev-intremap" it still disables i/o virtualisatoin. Related Xen dmesg output: (XEN) IVHD Error: Invalid IO-APIC 0 (XEN) AMD-Vi: Error initialization

...ease prebuilt binaries. I copy efi64/efi/syslinux.efi to /EFI/boot/booyx64.efi. Then I run the following from the root of the Syslinux-6.01 (with the usb flashdrive mounted at /mnt): # start: syslinux.cfg LABEL Debian linux /vmlinuz.efi initrd /initrd.img append root=/dev/sda3 ro \ ivrs_ioapic[7]=00:14.0 ivrs_ioapic[8]=00:00.1 # end: syslinux.cfg Same kernel command line currently works with grub-2.00 from efi booting from EFI System Partition on first hard drive. And also from gummiboot-32 from same usb flashdrive. Hardware I am using is: Asus Sabertooth 990FX w/ revision 1604 firm...

Hi Jan, After commit 2ca9fbd739b8a72b16dd790d0fff7b75f5488fb8 AMD IOMMU: allocate IRTE entries instead of using a static mapping, booting dom0 stalls several times. Sometimes this results in RCU stall warnings from the dom0 kernel, hitting the "any" key, on normal or serial console, makes the boot continue for a while but it stalls several times. (It also stalls on shutdown BTW) I have