Re: riscv64 virt board crash upon startup

[Laszlo Ersek <lersek@redhat.com>]

On 9/8/23 01:47, Laszlo Ersek wrote:

> I don't know why qemu_console_is_multihead() used a lot of QOM
> trickery for this in the first place, but here's what I'd propose as
> fix -- simply try to locate a QemuGraphicConsole in "consoles" that
> references the same "device" that *this* QemuGraphicConsole
> references, but by a different "head" number.

So, the final version of the function would look like:

static bool qemu_graphic_console_is_multihead(QemuGraphicConsole *c)
{
    QemuConsole *con;

    QTAILQ_FOREACH(con, &consoles, next) {
        if (!QEMU_IS_GRAPHIC_CONSOLE(con)) {
            continue;
        }
        QemuGraphicConsole *candidate = QEMU_GRAPHIC_CONSOLE(con);
        if (candidate->device != c->device) {
            continue;
        }

        if (candidate->head != c->head) {
            return true;
        }
    }
    return false;
}

Laszlo