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xen_console: fall back to qemu serial device

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The new xen_console protocol changed the default xen_console output device
from whatever Qemu chose to whatever xenstore choses and "pty" as fallback.

This is not how Qemu works. It has its own serial redirection semantics. So
it xenstore doesn't contain information on what to do, Qemu is the place to
ask.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2011-07-03 09:44:48 +02:00
parent 0f51726adc
commit 25a118130f
1 changed files with 7 additions and 4 deletions
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11
hw/xen_console.c
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@ -196,12 +196,15 @@ static int con_init(struct XenDevice *xendev)
} }
output = xenstore_read_str(con->console, "output"); output = xenstore_read_str(con->console, "output");
/* output is a pty by default */
/* no Xen override, use qemu output device */
if (output == NULL) { if (output == NULL) {
output = "pty"; con->chr = serial_hds[con->xendev.dev];
} else {
snprintf(label, sizeof(label), "xencons%d", con->xendev.dev);
con->chr = qemu_chr_open(label, output, NULL);
} }
snprintf(label, sizeof(label), "xencons%d", con->xendev.dev);
con->chr = qemu_chr_open(label, output, NULL);
xenstore_store_pv_console_info(con->xendev.dev, con->chr); xenstore_store_pv_console_info(con->xendev.dev, con->chr);
out: out: