[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 0/9] Enable Xenstore-stubdom Live Update
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Tue, 15 Jul 2025 16:23:17 +0200
- Authentication-results: smtp-out1.suse.de; none
- Autocrypt: addr=jgross@xxxxxxxx; keydata= xsBNBFOMcBYBCACgGjqjoGvbEouQZw/ToiBg9W98AlM2QHV+iNHsEs7kxWhKMjrioyspZKOB ycWxw3ie3j9uvg9EOB3aN4xiTv4qbnGiTr3oJhkB1gsb6ToJQZ8uxGq2kaV2KL9650I1SJve dYm8Of8Zd621lSmoKOwlNClALZNew72NjJLEzTalU1OdT7/i1TXkH09XSSI8mEQ/ouNcMvIJ NwQpd369y9bfIhWUiVXEK7MlRgUG6MvIj6Y3Am/BBLUVbDa4+gmzDC9ezlZkTZG2t14zWPvx XP3FAp2pkW0xqG7/377qptDmrk42GlSKN4z76ELnLxussxc7I2hx18NUcbP8+uty4bMxABEB AAHNH0p1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT7CwHkEEwECACMFAlOMcK8CGwMH CwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRCw3p3WKL8TL8eZB/9G0juS/kDY9LhEXseh mE9U+iA1VsLhgDqVbsOtZ/S14LRFHczNd/Lqkn7souCSoyWsBs3/wO+OjPvxf7m+Ef+sMtr0 G5lCWEWa9wa0IXx5HRPW/ScL+e4AVUbL7rurYMfwCzco+7TfjhMEOkC+va5gzi1KrErgNRHH kg3PhlnRY0Udyqx++UYkAsN4TQuEhNN32MvN0Np3WlBJOgKcuXpIElmMM5f1BBzJSKBkW0Jc Wy3h2Wy912vHKpPV/Xv7ZwVJ27v7KcuZcErtptDevAljxJtE7aJG6WiBzm+v9EswyWxwMCIO RoVBYuiocc51872tRGywc03xaQydB+9R7BHPzsBNBFOMcBYBCADLMfoA44MwGOB9YT1V4KCy vAfd7E0BTfaAurbG+Olacciz3yd09QOmejFZC6AnoykydyvTFLAWYcSCdISMr88COmmCbJzn sHAogjexXiif6ANUUlHpjxlHCCcELmZUzomNDnEOTxZFeWMTFF9Rf2k2F0Tl4E5kmsNGgtSa aMO0rNZoOEiD/7UfPP3dfh8JCQ1VtUUsQtT1sxos8Eb/HmriJhnaTZ7Hp3jtgTVkV0ybpgFg w6WMaRkrBh17mV0z2ajjmabB7SJxcouSkR0hcpNl4oM74d2/VqoW4BxxxOD1FcNCObCELfIS auZx+XT6s+CE7Qi/c44ibBMR7hyjdzWbABEBAAHCwF8EGAECAAkFAlOMcBYCGwwACgkQsN6d 1ii/Ey9D+Af/WFr3q+bg/8v5tCknCtn92d5lyYTBNt7xgWzDZX8G6/pngzKyWfedArllp0Pn fgIXtMNV+3t8Li1Tg843EXkP7+2+CQ98MB8XvvPLYAfW8nNDV85TyVgWlldNcgdv7nn1Sq8g HwB2BHdIAkYce3hEoDQXt/mKlgEGsLpzJcnLKimtPXQQy9TxUaLBe9PInPd+Ohix0XOlY+Uk QFEx50Ki3rSDl2Zt2tnkNYKUCvTJq7jvOlaPd6d/W0tZqpyy7KVay+K4aMobDsodB3dvEAs6 ScCnh03dDAFgIq5nsB11j3KPKdVoPlfucX2c7kGNH+LUMbzqV6beIENfNexkOfxHfw==
- Cc: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>
- Delivery-date: Tue, 15 Jul 2025 14:23:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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(-)
Could I get some feedback for this series, please?
Juergen
Attachment:
OpenPGP_0xB0DE9DD628BF132F.asc
Description: OpenPGP public key
Attachment:
OpenPGP_signature.asc
Description: OpenPGP digital signature
|
