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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-02-25 15:54:08 -0500 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-04 06:09:03 +0800 |
commit | 9b1d040fee4c82b3c69283cbb8a4d2a1dc062a21 (patch) | |
tree | ed6ee1ad6841a28e0bc7e256ecbf2a3772e45449 /include | |
parent | 85fed56cdbc7973f34524ee9efa885ef66e4d831 (diff) |
doc, xen: Mention 'earlyprintk=xen' in the documentation.
commit 2482a92e7d17187301d7313cfe5021b13393a0b4 upstream.
The earlyprintk for Xen PV guests utilizes a simple hypercall
(console_io) to provide output to Xen emergency console.
Note that the Xen hypervisor should be booted with 'loglevel=all'
to output said information.
Reported-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/1361825650-14031-2-git-send-email-konrad.wilk@oracle.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions