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| author | Jan Beulich <jbeulich@suse.com> | 2012-09-11 15:55:33 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2012-09-11 15:55:33 +0200 |
| commit | 631126d92d7baa9d6a219aad27db2afeed05e392 (patch) | |
| tree | 3953c5a48f4a00c9d7ecbf6fa3a2443e5a6a21bb /docs/misc | |
| parent | 65132d844309569ad6ffc88011bd8a70a6a4b61c (diff) | |
| download | xen-631126d92d7baa9d6a219aad27db2afeed05e392.tar.gz xen-631126d92d7baa9d6a219aad27db2afeed05e392.tar.bz2 xen-631126d92d7baa9d6a219aad27db2afeed05e392.zip | |
ns16550: PCI initialization adjustments
Besides single-port serial cards, also accept multi-port ones and such
providing mixed functionality (e.g. also having a parallel port).
Reading PCI_INTERRUPT_PIN before ACPI gets enabled generally produces
an incorrect IRQ (below 16, whereas after enabling ACPI it frequently
would end up at a higher one), so this is useful (almost) only when a
system already boots in ACPI mode.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'docs/misc')
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