Anthony,
could you please have a look at patches 3, 4 and 7? They are lacking a
tools maintainer's comment.
Juergen
On 02.07.25 10:12, Juergen Gross wrote:
> With this series applied I was able to perform Live Update of Xenstore
> running in a PVH stubdom.
>
> This series is based on a related Mini-OS patch series AND it needs
> the Mini-OS commit id updated accordingly in Config.mk.
>
> One relevant change in this series is how the Xenstore state is being
> read after activating the new binary. Instead of using mmap() the
> state records are read one by one via fread(). This might have a
> small performance impact for the daemon live update case, but it
> should be neglectable.
>
> Juergen Gross (9):
> stubdom: configure kexec for PVH Xenstore stubdom
> tools/xenstore: perform kexec for stubdom live update
> libevtchn: add O_CLOEXEC support for Mini-OS
> libxengnttab: set the cloexec flag on Mini-OS
> xenstored: use read() instead of mmap() for reading live update state
> xenstored: don't use xenevtchn_fdopen() in stubdom
> tools/libxenevtchn: add xenevtchn_bind() under Mini-OS
> xenstored: rebind event channels after live update in stubdom
> tools/xenstored: make stubdom_init() live update aware
>
> stubdom/xenstorepvh-minios.cfg | 2 +
> tools/include/xenevtchn.h | 11 ++++
> tools/libs/evtchn/minios.c | 23 +++++++--
> tools/libs/gnttab/minios.c | 1 +
> tools/xenstored/core.c | 5 +-
> tools/xenstored/core.h | 13 ++++-
> tools/xenstored/domain.c | 25 +++++----
> tools/xenstored/domain.h | 2 +-
> tools/xenstored/lu.c | 93 +++++++++++++++++++++-------------
> tools/xenstored/lu_minios.c | 33 +++++++++++-
> tools/xenstored/minios.c | 22 ++++++--
> tools/xenstored/posix.c | 10 ++++
> 12 files changed, 183 insertions(+), 57 deletions(-)
>