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This patch series adds support for preservation of the VM generation ID buffer address in xenstore across save/restore and migrate, and also code to increment the value in all cases except for migration. The vast majority of the code is in second patch. The first patch merely changes the xenstore key name used by hvmloader to store the buffer address.

...a vmexit, so the cached result of this is potentially stale after the next guest instruction. It is correctly saved and restored on vcpu context switch. Furthermore, 64bit Windows writes to this MSR on every thread context switch, so interception causes a substantial performance hit. From: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> CC: Keir Fraser <keir@xen.org> CC: Jan Beulich <JBeulich@suse.com> CC: Tim Deegan <tim@xen.org> CC: Jun Nakajima <jun.nakaj...

Some old Windows frontends fail to transition through the xenbus Closing state and move directly from Connected to Closed. Handle this case properly. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> --- drivers/net/xen-netback/xenbus.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/xen-netback/xenbus.c b...

The following is a revised patch series to add support for a VM generation ID virtual device for HVM guests. The basic requirements of this device are as follows: - It must be exposed somewhere in ACPI namespace with a _CID of "VM_Gen_Counter". - It must also include a _DDN of "VM_Gen_Counter". - It must contain a _HID object but no particular value is required. - It must

Signed-off-by: Paul Durrant <paul.durrant@citrix.com> --- xen/include/public/hvm/pvdrivers.h | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/xen/include/public/hvm/pvdrivers.h b/xen/include/public/hvm/pvdrivers.h index 4c6b705..77994d2 100644 --- a/xen/include/public/hvm/pvdrivers.h +...

The code to detect fragments in checksum_setup() was missing for IPv4 and too eager for IPv6. (It transpires that Windows seems to send IPv6 packets with a fragment header even if they are not a fragment - i.e. offset is zero, and M bit is not set). Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> --- drivers/net/xen-netback/netback.c | 31 ++++++++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-)...

This patch series adds support for preservation of the VM generation ID buffer address in xenstore across save/restore and migrate, and also code to increment the value in all cases except for migration. Patch 1 modifies the guest ro and rw node creation to an open coding style and cleans up some extraneous node creation. Patch 2 modifies creation of the hvmloader key in xenstore and adds

# HG changeset patch # User Paul Durrant <paul.durrant@citrix.com> # Date 1316781326 -3600 # Node ID 55a9ffe0ca81b9b4183626f81fa54343d378704f # Parent cc339ab1d91789ed6ff4d3d9abc1bae2e90ac294 Add save/restore support for viridian APIC assist pfn. c/s 17b754cab7b0 introduced a per-VCPU viridian structure to store the APIC assist pf...

This patch series adds support for preservation of the VM generation ID buffer address in xenstore across save/restore and migrate, and also code to increment the value in all cases except for migration. The first patch modifies creation of the hvmloader key in xenstore and adds creation of a new read/write hvmloader/generation-id-addr key. The second patch changes hvmloader to use the new key (as

Hi, My name is Jose and I work at Google on the Ganeti project. I am using Xen 4.0. I would like to ask your advice on what you think is the best way to send data between the guest and the host, for example, the guest OS tells Ganeti that it wants to be reinstalled at reboot time. Even a simple integer suffices for our purposes. We have considered adding a new device, such as, a char/block

# HG changeset patch # User Paul Durrant <paul.durrant@citrix.com> # Date 1309796247 -3600 # Node ID 6ce0dbc6f955707bf814d62a16a2b4382d957332 # Parent 7e4404a8f5f9bc111a80f15a2bce35378b39f2f1 Don''t expose CPUID time leaf when not using PVRDTSCP Some versions of Oracle''s Solaris PV drivers make a check that the ma...

# HG changeset patch # User Paul Durrant <paul.durrant@citrix.com> # Date 1322574403 0 # Node ID 51692288a6e84c941f9e5049c73b7246bab97f70 # Parent e1e952982cf1d7a0c38a7822a8b5e78ba04b5ba5 Fix hvmloader xenbus segment array length. c/s acc408d667e1 had this one too short for handling a write. This incremental patch rectifies the pr...

> -----Original Message----- > From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com] > Sent: 13 June 2013 18:33 > To: Paul Durrant > Cc: qemu-devel@nongnu.org; xen-devel@lists.xen.org > Subject: Re: [Qemu-devel] [PATCH] Remove hardcoded xen-platform device > initialization > > On Thu, 13 Jun 2013, Paul Durrant wrote: > > The xen-platform device should be initialized by the Xen toolstack by > > passi...

This patch series adds the ability to selectively disable the S3 and S4 ACPI power states for HVM guests. Since there is a general move towards retiring the hvm_info_table structure, the first patch moves the acpi_enabled flag out of the hvm_info_table and into a xenstore key (platform/acpi). The second patch then introduces the acpi_s3 and acpi_s4 configuration parameters to the xl config file

These patch update Windows generation ID support on ACPI. First patch mainly update to new specifications while second one introduce again the device in ACPI table. Frediano Ziglio (2): genid: Update Windows generation ID genid: Introduce again Windows generation ID device docs/misc/xenstore-paths.markdown | 6 ++++ tools/firmware/hvmloader/acpi/build.c | 49

Hi, recently Ive installed Windows 2008 x64 HVM domain on Xen 4.0. On xen wiki is info: Support for Citrix WHQL-certified Windows PV drivers, included in XCP (Xen Cloud Platform). Xen Cloud Platform: So I installed them on Windows 2008 x64 domain and its not able to boot anymore: File: \windows\system32\Drivers\xevtchn.sys Status: 0xc0000428 Info: Windows cannot verify the digital

Hi, recently Ive installed Windows 2008 x64 HVM domain on Xen 4.0. On xen wiki is info: Support for Citrix WHQL-certified Windows PV drivers, included in XCP (Xen Cloud Platform). Xen Cloud Platform: So I installed them on Windows 2008 x64 domain and its not able to boot anymore: File: \windows\system32\Drivers\xevtchn.sys Status: 0xc0000428 Info: Windows cannot verify the digital

...at microsoft.com> CC: Haiyang Zhang <haiyangz at microsoft.com> CC: "Michael S. Tsirkin" <mst at redhat.com> CC: Shrikrishna Khare <skhare at vmware.com> CC: "VMware, Inc." <pv-drivers at vmware.com> CC: Wei Liu <wei.liu2 at citrix.com> CC: Paul Durrant <paul.durrant at citrix.com> CC: David Kershner <david.kershner at unisys.com> Signed-off-by: Jarod Wilson <jarod at redhat.com> --- drivers/net/hyperv/hyperv_net.h | 4 ++-- drivers/net/hyperv/netvsc_drv.c | 14 +++++++------- drivers/net/virtio_...

...at microsoft.com> CC: Haiyang Zhang <haiyangz at microsoft.com> CC: "Michael S. Tsirkin" <mst at redhat.com> CC: Shrikrishna Khare <skhare at vmware.com> CC: "VMware, Inc." <pv-drivers at vmware.com> CC: Wei Liu <wei.liu2 at citrix.com> CC: Paul Durrant <paul.durrant at citrix.com> CC: David Kershner <david.kershner at unisys.com> Signed-off-by: Jarod Wilson <jarod at redhat.com> --- drivers/net/hyperv/hyperv_net.h | 4 ++-- drivers/net/hyperv/netvsc_drv.c | 14 +++++++------- drivers/net/virtio_...

...adds code to handle SKB_GSO_TCPV6 skbs and construct appropriate extra or prefix segments to pass the large packet to the frontend. New xenstore flags, feature-gso-tcpv6 and feature-gso-tcpv6-prefix, are sampled to determine if the frontend is capable of handling such packets. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> --- drivers/net/xen-netback/common.h | 9 +++++-- drivers/net/xen-netback/interface.c | 6 +++-- drivers/net/xen-netbac...