search for: serial_ioport_writ

...qemu. SUMMARY: This patch fixes several bugs in serial.c (1) A typo in serial_save() where qemu_get_8s is called (should be qemu_put_8s) (2) No support provided in serial_load() for version_id == 1 (should unmarshal a 1 byte s->divider and should provide a default value for s->fcr (3) Call serial_ioport_write() to initialize s->fcr. It is not sufficient to load its value; other hidden values (such as s->recv_fifo.itl) must be re-initialized. Signed-off-by: Ben Guthro <bguthro@virtualiron.com <mailto:bguthro@virtualiron.com>> Signed-off-by: Robert Phillips <rphillips@virtualiron.c...

When running on PowerPC, we don''t have native PIO support. There are a few hacks around to enable PIO access on PowerPC nevertheless. The most typical one is the isa-mmio device. It takes MMIO requests and converts them to PIO requests on the (QEMU internal) PIO bus. This however is not how real hardware works and it limits us in the ability to spawn eventfd''s on PIO ports

I am seeing a problem with the Xen emulated serial console. When running a Linux 2.6.20 HVM guest that has CONFIG_HOTPLUG_CPU=n, the guest blocks on output to the console until it receives input keypresses from `xm console`. This prevents the guest from booting up without banging on some keys, and makes interactive use of the console difficult. By bisecting Linux kernel commits, I found that