]> git.ipfire.org Git - thirdparty/kernel/linux.git/commit
xen: introduce xen_console_io option
authorStefano Stabellini <sstabellini@kernel.org>
Tue, 13 Jan 2026 23:24:20 +0000 (15:24 -0800)
committerJuergen Gross <jgross@suse.com>
Wed, 14 Jan 2026 13:43:57 +0000 (14:43 +0100)
commit763baca7bf8b36b8ff0e1ec6eb30dbfe99b18fd8
tree6e528f8967dd9e941cb13ea3b22bc601718d667f
parentdc8ea8714311e549ee93a2b0bdd5487d20bfadbf
xen: introduce xen_console_io option

Xen can support console_io hypercalls for any domains, not just dom0,
depending on DEBUG and XSM policies. These hypercalls can be very useful
for development and debugging.

Introduce a kernel command line option xen_console_io to enable the
usage of console_io hypercalls for any domain upon request. When
xen_console_io is not specified, the current behavior is retained.

Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <alpine.DEB.2.22.394.2601131522540.992863@ubuntu-linux-20-04-desktop>
Documentation/admin-guide/kernel-parameters.txt
drivers/tty/hvc/hvc_xen.c