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[PATCH v6 0/4] xen/console: configurable conring size
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: dmukhin@xxxxxxxx
- Date: Fri, 8 May 2026 17:57:10 -0700
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- Cc: andrew.cooper3@xxxxxxxxxx, anthony.perard@xxxxxxxxxx, jbeulich@xxxxxxxx, julien@xxxxxxx, michal.orzel@xxxxxxx, roger.pau@xxxxxxxxxx, sstabellini@xxxxxxxxxx, dmukhin@xxxxxxxx
- Delivery-date: Sat, 09 May 2026 00:57:53 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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Series introduces compile-time configurable conring size along
with few cleanups in conring management.
Patch 1 introduces CONRING_CONRING_SHIFT to select compile-time
conring buffer size.
Patch 2 updates conring{,_size} annotations to __ro_after_init as per [2].
Patch 3 optimizes switch from early conring to permanent conring.
Patch 4 update the conring buffer allocation code.
[1] Link to v6:
https://lore.kernel.org/xen-devel/20260205013606.3384798-1-dmukhin@xxxxxxxx/
[2]
https://lore.kernel.org/xen-devel/1a5ed8ad-0cc7-4e05-9b9c-cd6930d9b9ea@xxxxxxxxxx
[3] Link to CI:
https://gitlab.com/xen-project/people/dmukhin/xen/-/pipelines/2511597097
Denis Mukhin (4):
xen/console: make console buffer size configurable
xen/console: promote conring{,_size} to __ro_after_init
xen/console: use memcpy() in console_init_ring()
xen/console: switch conring runtime allocation to xvmalloc
docs/misc/xen-command-line.pandoc | 5 +--
xen/drivers/char/Kconfig | 15 ++++++++
xen/drivers/char/console.c | 60 +++++++++++++++++++++++--------
3 files changed, 63 insertions(+), 17 deletions(-)
--
2.54.0
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