On Thu, 22 Jul 2010, Konrad Rzeszutek Wilk wrote:
Looking briefly at the code, it looks to be sending two bytes down the
port. What does 'dmesg | grep serio' show? Something like this:
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input4
Do you see both ports in /proc/ioports and the IRQ utilized in
/proc/interrupts? Are there an interrupts being sent when you type on
the keyboard?
For a baremetal boot
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX0 port at 0x60,0x64 irq 12
serio: i8042 AUX1 port at 0x60,0x64 irq 12
serio: i8042 AUX2 port at 0x60,0x64 irq 12
serio: i8042 AUX3 port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input4
input: PS/2 Mouse as /devices/platform/i8042/serio2/input/input5
input: AlpsPS/2 ALPS GlidePoint as
/devices/platform/i8042/serio2/input/input6
for the xen boot
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX0 port at 0x60,0x64 irq 12
serio: i8042 AUX1 port at 0x60,0x64 irq 12
serio: i8042 AUX2 port at 0x60,0x64 irq 12
serio: i8042 AUX3 port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input4
input: PS/2 Generic Mouse as /devices/platform/i8042/serio2/input/input9
psmouse.c: Failed to enable mouse on isa0060/serio2
/proc/ioports is the same for xen and baremetal. /proc/interrupts says
1: 120 38 IO-APIC-edge i8042
12: 609 115 IO-APIC-edge i8042
for baremetal, and for xen
1: 8 0 xen-pirq-ioapic-edge i8042
12: 3 0 xen-pirq-ioapic-edge i8042
but for xen the counts don't change.
Michael Young
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