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Allow opening virtio-console ports from the host side before guest

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enumerates them.

Approved by:	trasz
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Jakub Wojciech Klama 2016-11-24 21:53:42 +00:00
parent 18ec6fbc3a
commit 962094d52a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=309120
1 changed files with 12 additions and 0 deletions
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12
usr.sbin/bhyve/pci_virtio_console.c
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@ -90,6 +90,7 @@ struct pci_vtcon_port {
bool vsp_enabled;
bool vsp_console;
bool vsp_rx_ready;
bool vsp_open;
int vsp_rxq;
int vsp_txq;
void * vsp_arg;
@ -116,6 +117,7 @@ struct pci_vtcon_softc {
char * vsc_rootdir;
int vsc_kq;
int vsc_nports;
bool vsc_ready;
struct pci_vtcon_port vsc_control_port;
struct pci_vtcon_port vsc_ports[VTCON_MAXPORTS];
struct pci_vtcon_config *vsc_config;
@ -359,6 +361,7 @@ pci_vtcon_sock_accept(int fd __unused, enum ev_type t __unused, void *arg)
sock->vss_open = true;
sock->vss_conn_fd = s;
sock->vss_conn_evp = mevent_add(s, EVF_READ, pci_vtcon_sock_rx, sock);
pci_vtcon_open_port(sock->vss_port, true);
}
@ -454,11 +457,15 @@ pci_vtcon_control_tx(struct pci_vtcon_port *port, void *arg, struct iovec *iov,
switch (ctrl->event) {
case VTCON_DEVICE_READY:
sc->vsc_ready = true;
/* set port ready events for registered ports */
for (i = 0; i < VTCON_MAXPORTS; i++) {
tmp = &sc->vsc_ports[i];
if (tmp->vsp_enabled)
pci_vtcon_announce_port(tmp);
if (tmp->vsp_open)
pci_vtcon_open_port(tmp, true);
}
break;
@ -500,6 +507,11 @@ pci_vtcon_open_port(struct pci_vtcon_port *port, bool open)
{
struct pci_vtcon_control event;
if (!port->vsp_sc->vsc_ready) {
port->vsp_open = true;
return;
}
event.id = port->vsp_id;
event.event = VTCON_PORT_OPEN;
event.value = (int)open;