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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PATCH for-2.1 1/1] virtio-serial-bus: keep port 0 reserved for virtconsole even on unplug |
Date: | Tue, 15 Jul 2014 11:29:15 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
Il 15/07/2014 11:23, Amit Shah ha scritto:
i = port_id / 32;
This can also be moved inside the if. Paolo
- vser->ports_map[i] &= ~(1U << (port_id % 32)); + if (port_id) { + /* + * Don't mark port 0 removed -- we explicitly reserve it for + * backward compat with older guests, and a device unplug of + * virtconsole removes the reservation. + */ + vser->ports_map[i] &= ~(1U << (port_id % 32)); + }
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