Hello I tried to patch qemu to allow disabling the PS/2 mouse.
This patch works for me, when I disable the mouse Windows no longer detects it. I am not sure this is entirely correct. Specifically there is KBD_MODE_DISABLE_MOUSE bit which can probably still be disabled and KBD_MODE_MOUSE_INT is enabled. Thanks Michal Signed-off-by: Michal Suchanek <hramr...@centrum.cz> --- hw/isa.h | 1 + hw/pckbd.c | 36 +++++++++++++++++++++--------------- qemu-options.hx | 9 +++++++++ vl.c | 4 ++++ 4 files changed, 35 insertions(+), 15 deletions(-) diff --git a/hw/isa.h b/hw/isa.h index aaf0272..80ab6bb 100644 --- a/hw/isa.h +++ b/hw/isa.h @@ -31,6 +31,7 @@ ISADevice *isa_create(const char *name); ISADevice *isa_create_simple(const char *name); extern target_phys_addr_t isa_mem_base; +extern int isa_psaux; void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size, int be); diff --git a/hw/pckbd.c b/hw/pckbd.c index 6e4e406..4557e14 100644 --- a/hw/pckbd.c +++ b/hw/pckbd.c @@ -169,7 +169,7 @@ static void kbd_update_irq(KBDState *s) } } qemu_set_irq(s->irq_kbd, irq_kbd_level); - qemu_set_irq(s->irq_mouse, irq_mouse_level); + if (s->mouse) qemu_set_irq(s->irq_mouse, irq_mouse_level); } static void kbd_update_kbd_irq(void *opaque, int level) @@ -205,10 +205,11 @@ static uint32_t kbd_read_status(void *opaque, uint32_t addr) static void kbd_queue(KBDState *s, int b, int aux) { - if (aux) - ps2_queue(s->mouse, b); - else + if (aux) { + if (s->mouse) ps2_queue(s->mouse, b); + } else { ps2_queue(s->kbd, b); + } } static void ioport92_write(void *opaque, uint32_t addr, uint32_t val) @@ -323,12 +324,13 @@ static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val) static uint32_t kbd_read_data(void *opaque, uint32_t addr) { KBDState *s = opaque; - uint32_t val; + uint32_t val = 0; - if (s->pending == KBD_PENDING_AUX) - val = ps2_read_data(s->mouse); - else + if (s->pending == KBD_PENDING_AUX) { + if (s->mouse) val = ps2_read_data(s->mouse); + } else { val = ps2_read_data(s->kbd); + } DPRINTF("kbd: read data=0x%02x\n", val); return val; @@ -354,13 +356,13 @@ static void kbd_write_data(void *opaque, uint32_t addr, uint32_t val) kbd_queue(s, val, 0); break; case KBD_CCMD_WRITE_AUX_OBUF: - kbd_queue(s, val, 1); + if (s->mouse) kbd_queue(s, val, 1); break; case KBD_CCMD_WRITE_OUTPORT: ioport92_write(s, 0, val); break; case KBD_CCMD_WRITE_MOUSE: - ps2_write_mouse(s->mouse, val); + if (s->mouse) ps2_write_mouse(s->mouse, val); break; default: break; @@ -430,9 +432,10 @@ void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq, { KBDState *s = qemu_mallocz(sizeof(KBDState)); int s_io_memory; + int mouse_enabled = isa_psaux; s->irq_kbd = kbd_irq; - s->irq_mouse = mouse_irq; + if (mouse_enabled) s->irq_mouse = mouse_irq; s->mask = mask; vmstate_register(NULL, 0, &vmstate_kbd, s); @@ -440,7 +443,8 @@ void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq, cpu_register_physical_memory(base, size, s_io_memory); s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s); - s->mouse = ps2_mouse_init(kbd_update_aux_irq, s); + s->mouse = NULL; + if (mouse_enabled) s->mouse = ps2_mouse_init(kbd_update_aux_irq, s); qemu_register_reset(kbd_reset, s); } @@ -454,7 +458,7 @@ void i8042_isa_mouse_fake_event(void *opaque) ISADevice *dev = opaque; KBDState *s = &(DO_UPCAST(ISAKBDState, dev, dev)->kbd); - ps2_mouse_fake_event(s->mouse); + if (s->mouse) ps2_mouse_fake_event(s->mouse); } void i8042_setup_a20_line(ISADevice *dev, qemu_irq *a20_out) @@ -478,9 +482,10 @@ static const VMStateDescription vmstate_kbd_isa = { static int i8042_initfn(ISADevice *dev) { KBDState *s = &(DO_UPCAST(ISAKBDState, dev, dev)->kbd); + int mouse_enabled = isa_psaux; isa_init_irq(dev, &s->irq_kbd, 1); - isa_init_irq(dev, &s->irq_mouse, 12); + if (mouse_enabled) isa_init_irq(dev, &s->irq_mouse, 12); register_ioport_read(0x60, 1, 1, kbd_read_data, s); register_ioport_write(0x60, 1, 1, kbd_write_data, s); @@ -490,7 +495,8 @@ static int i8042_initfn(ISADevice *dev) register_ioport_write(0x92, 1, 1, ioport92_write, s); s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s); - s->mouse = ps2_mouse_init(kbd_update_aux_irq, s); + s->mouse = NULL; + if (mouse_enabled) s->mouse = ps2_mouse_init(kbd_update_aux_irq, s); qemu_register_reset(kbd_reset, s); return 0; } diff --git a/qemu-options.hx b/qemu-options.hx index a0b5ae9..fd96b6a 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -1746,6 +1746,15 @@ Three button serial mouse. Configure the guest to use Microsoft protocol. @end table ETEXI +DEF("no-psaux", 0, QEMU_OPTION_nopsaux, \ + "-no-psaux disable PS/2 mouse\n", + QEMU_ARCH_ALL) +STEXI +...@item -no-psaux +Disables the PS/2 mouse port on machines which have it hanging from the i8042. + +ETEXI + DEF("parallel", HAS_ARG, QEMU_OPTION_parallel, \ "-parallel dev redirect the parallel port to char device 'dev'\n", QEMU_ARCH_ALL) diff --git a/vl.c b/vl.c index 3f45aa9..ee641bc 100644 --- a/vl.c +++ b/vl.c @@ -227,6 +227,7 @@ int ctrl_grab = 0; unsigned int nb_prom_envs = 0; const char *prom_envs[MAX_PROM_ENVS]; int boot_menu; +int isa_psaux = 1; int nb_numa_nodes; uint64_t node_mem[MAX_NODES]; @@ -2052,6 +2053,9 @@ int main(int argc, char **argv, char **envp) case QEMU_OPTION_portrait: graphic_rotate = 1; break; + case QEMU_OPTION_nopsaux: + isa_psaux = 0; + break; case QEMU_OPTION_kernel: kernel_filename = optarg; break; -- 1.7.1 ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel