David Scott 674ad2be40 xenstore: extend the xenstore ring with a 'closing' signal ...

Hvmloader uses the xenstore ring and then tries to reset it back
to its initial state before booting the guest. Occasionally xenstored
will read the ring while it is being zeroed and conclude it has
been corrupted. This prevents PV drivers from loading in the guest.

This patch updates the xenstore ring protocol definition, enabling
a server to advertise additional features to the guest. One such feature
is defined: the ability to cleanly reset the ring including the
higher-level protocol, like an enhanced RESET_WATCHES for rings.

This patch implements the ring reconnection features in oxenstored
and hvmloader, fixing the bug.

This patch also defines an 'invalid' xenstore packet type and uses this
to poison the ring over a reconnect. This will make diagnosing this
bug much easier in future.

Signed-off-by: David Scott <dave.scott@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Reviewed-by: Jon Ludlam <jonathan.ludlam@citrix.com>

2014-10-08 14:29:08 +01:00

..

arm

amd/seattle: Add early printk message for the platform

2014-10-03 10:28:44 +01:00

amd-ucode-container.txt

docs, amd_ucode: add AMD container file format notes

2014-10-06 11:21:15 +02:00

console.txt

docs: console: correct example console type definition

2012-08-17 14:57:29 +01:00

coverage.markdown

gcov: update documentation on coverage.

2013-05-30 09:31:05 +01:00

crashdb.txt

Fix gdb debugging of hypervisor.

2007-12-12 11:27:15 +00:00

distro_mapping.txt

Add configure --with-sysconfig-leaf-dir=SUBDIR to set CONFIG_LEAF_DIR

2014-10-06 17:00:22 +01:00

dump-core-format.txt

dump-core: update the documentation

2009-01-15 12:40:48 +00:00

efi.markdown

EFI: update documentation for arm64

2014-10-02 17:02:04 +02:00

grant-tables.txt

bitkeeper revision 1.1344 (4266a1eeiNiXbU4vcENZiEEaX7Iybw)

2005-04-20 18:39:42 +00:00

hvm-emulated-unplug.markdown

Register PV driver product numbers 4 and 5.

2013-11-04 17:04:07 +00:00

kexec_and_kdump.txt

docs: remove ia64 from kexec_and_kdump.txt

2014-03-12 13:34:40 +00:00

libxl_memory.txt

docs: initial documentation for xenstore paths

2012-10-01 17:54:11 +01:00

pci-device-reservations.txt

docs: Add some words describing xen-pvdevice

2013-11-29 10:29:05 +00:00

printk-formats.txt

vsprintf: introduce %*ph extended format specifier for hex buffers

2014-10-01 11:32:56 +02:00

pvh-readme.txt

dom0: add opt_dom0pvh to setup.c

2014-06-02 10:32:22 +02:00

pvh.markdown

docs: fix one typo in pvh.markdown

2014-09-29 13:25:15 +01:00

pvrdtscp.c

docs: Example usage of pvrdtscp algorithm

2009-12-11 08:51:21 +00:00

qemu-upstream_howto_use_it.markdown

docs: fix link in qemu-upstream doc

2012-07-24 10:29:17 +01:00

sedf_scheduler_mini-HOWTO.txt

docs: remove non-breaking spaces from sedf_scheduler_mini-HOWTO.txt

2011-11-29 15:18:18 +00:00

tmem-internals.html

docs: remove ia64 from tmem-internals.html

2014-03-12 13:37:20 +00:00

tscmode.txt

docs: various typos

2012-06-28 16:57:26 +01:00

vbd-interface.txt

libxl: introduce an option for disabling the non-O_DIRECT workaround

2014-05-02 17:50:27 +01:00

vtd.txt

Replace references to old wiki with ones to new.

2011-11-29 13:53:31 +00:00

vtpm-platforms.txt

vtpmmgr: use XSM label as vTPM kernel hash

2014-04-23 11:58:26 +01:00

vtpm.txt

vtpmmgr: add TPM group support

2014-04-23 11:56:41 +01:00

vtpmmgr.txt

vtpmmgr: use XSM label as vTPM kernel hash

2014-04-23 11:58:26 +01:00

xen_config.html

tools: vnet: Remove

2011-03-25 21:59:20 +00:00

xen-command-line.markdown

x86: detect and initialize Cache Monitoring Technology feature

2014-10-06 12:36:51 +02:00

xen-error-handling.txt

docs: Add description of BUILD_BUG_ON().

2008-12-04 16:36:43 +00:00

xenpaging.txt

docs: update xenpaging.txt

2012-08-30 17:57:31 +01:00

xenstore-paths.markdown

libxl/remus: setup and control network output buffering

2014-09-26 15:12:37 +01:00

xenstore-ring.txt

xenstore: extend the xenstore ring with a 'closing' signal

2014-10-08 14:29:08 +01:00

xenstore.txt

docs: various typos

2012-06-28 16:57:26 +01:00

xl-disk-configuration.txt

libxl: add option for discard support to xl disk configuration

2014-05-19 12:50:27 +01:00

xl-network-configuration.markdown

libxl: Allow network driver domains when run_hotplug_scritps is set

2013-07-17 12:18:25 +01:00

xl-numa-placement.markdown

libxl: automatic NUMA placement affects soft affinity

2014-07-30 12:45:25 +01:00

xsm-flask.txt

x86/gdbsx: security audit of {,un}pausevcpu and domstatus hypercalls

2014-07-25 11:55:11 +02:00