X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2F8259a.c;h=34851dd83fb164e57b593ca2edeb21948f571fc1;hp=8019f82382c5ff3aea5895df2dec2d5230b77b49;hb=888c2dd8a3914f9a08e2b0e006ff96c5cc5cd792;hpb=cbe9bc8587261deb3aaee94a100594d88bc9765f diff --git a/palacios/src/devices/8259a.c b/palacios/src/devices/8259a.c index 8019f82..34851dd 100644 --- a/palacios/src/devices/8259a.c +++ b/palacios/src/devices/8259a.c @@ -190,7 +190,7 @@ static void DumpPICState(struct pic_internal *p) } -static int pic_raise_intr(void * private_data, int irq) { +static int pic_raise_intr(struct guest_info * info, void * private_data, int irq) { struct pic_internal * state = (struct pic_internal*)private_data; if (irq == 2) { @@ -209,13 +209,14 @@ static int pic_raise_intr(void * private_data, int irq) { return -1; } + v3_interrupt_cpu(info, 0); + return 0; } -static int pic_lower_intr(void *private_data, int irq) { - - struct pic_internal *state = (struct pic_internal*)private_data; +static int pic_lower_intr(struct guest_info * info, void * private_data, int irq) { + struct pic_internal * state = (struct pic_internal*)private_data; PrintDebug("[pic_lower_intr] IRQ line %d now low\n", irq); if (irq <= 7) { @@ -236,7 +237,7 @@ static int pic_lower_intr(void *private_data, int irq) { -static int pic_intr_pending(void * private_data) { +static int pic_intr_pending(struct guest_info * info, void * private_data) { struct pic_internal * state = (struct pic_internal*)private_data; if ((state->master_irr & ~(state->master_imr)) || @@ -247,7 +248,7 @@ static int pic_intr_pending(void * private_data) { return 0; } -static int pic_get_intr_number(void * private_data) { +static int pic_get_intr_number(struct guest_info * info, void * private_data) { struct pic_internal * state = (struct pic_internal *)private_data; int i = 0; int irq = -1; @@ -290,33 +291,33 @@ static int pic_get_intr_number(void * private_data) { /* The IRQ number is the number returned by pic_get_intr_number(), not the pin number */ -static int pic_begin_irq(void * private_data, int irq) { +static int pic_begin_irq(struct guest_info * info, void * private_data, int irq) { struct pic_internal * state = (struct pic_internal*)private_data; - + if ((irq >= state->master_icw2) && (irq <= state->master_icw2 + 7)) { - irq &= 0x7; + irq &= 0x7; } else if ((irq >= state->slave_icw2) && (irq <= state->slave_icw2 + 7)) { - irq &= 0x7; - irq += 8; + irq &= 0x7; + irq += 8; } else { - // PrintError("8259 PIC: Could not find IRQ (0x%x) to Begin\n",irq); - return -1; + // PrintError("8259 PIC: Could not find IRQ (0x%x) to Begin\n",irq); + return -1; } - + if (irq <= 7) { - if (((state->master_irr & ~(state->master_imr)) >> irq) == 0x01) { - state->master_isr |= (0x1 << irq); + if (((state->master_irr & ~(state->master_imr)) >> irq) == 0x01) { + state->master_isr |= (0x1 << irq); - if (!(state->master_elcr & (0x1 << irq))) { - state->master_irr &= ~(0x1 << irq); - } - } + if (!(state->master_elcr & (0x1 << irq))) { + state->master_irr &= ~(0x1 << irq); + } + } } else { - state->slave_isr |= (0x1 << (irq - 8)); + state->slave_isr |= (0x1 << (irq - 8)); - if (!(state->slave_elcr & (0x1 << irq))) { - state->slave_irr &= ~(0x1 << (irq - 8)); - } + if (!(state->slave_elcr & (0x1 << irq))) { + state->slave_irr &= ~(0x1 << (irq - 8)); + } } return 0; @@ -420,6 +421,8 @@ static int write_master_port1(ushort_t port, void * src, uint_t length, struct v return -1; } + v3_clear_pending_intr(dev->vm); + if (IS_ICW1(cw)) { PrintDebug("8259 PIC: Setting ICW1 = %x (wr_Master1)\n", cw); @@ -482,12 +485,16 @@ static int write_master_port2(ushort_t port, void * src, uint_t length, struct v return -1; } + v3_clear_pending_intr(dev->vm); + if (state->master_state == ICW2) { struct icw1 * cw1 = (struct icw1 *)&(state->master_icw1); PrintDebug("8259 PIC: Setting ICW2 = %x (wr_Master2)\n", cw); state->master_icw2 = cw; + + if (cw1->sngl == 0) { state->master_state = ICW3; } else if (cw1->ic4 == 1) { @@ -496,6 +503,8 @@ static int write_master_port2(ushort_t port, void * src, uint_t length, struct v state->master_state = READY; } + + } else if (state->master_state == ICW3) { struct icw1 * cw1 = (struct icw1 *)&(state->master_icw1); @@ -538,6 +547,8 @@ static int write_slave_port1(ushort_t port, void * src, uint_t length, struct vm return -1; } + v3_clear_pending_intr(dev->vm); + if (IS_ICW1(cw)) { PrintDebug("8259 PIC: Setting ICW1 = %x (wr_Slave1)\n", cw); state->slave_icw1 = cw; @@ -596,6 +607,9 @@ static int write_slave_port2(ushort_t port, void * src, uint_t length, struct vm return -1; } + v3_clear_pending_intr(dev->vm); + + if (state->slave_state == ICW2) { struct icw1 * cw1 = (struct icw1 *)&(state->master_icw1); @@ -714,15 +728,17 @@ static struct v3_device_ops dev_ops = { -static int pic_init(struct guest_info * vm, void * cfg_data) { +static int pic_init(struct guest_info * vm, v3_cfg_tree_t * cfg) { struct pic_internal * state = NULL; state = (struct pic_internal *)V3_Malloc(sizeof(struct pic_internal)); + char * name = v3_cfg_val(cfg, "name"); + V3_ASSERT(state != NULL); - struct vm_device * dev = v3_allocate_device("8259A", &dev_ops, state); + struct vm_device * dev = v3_allocate_device(name, &dev_ops, state); if (v3_attach_device(vm, dev) == -1) { - PrintError("Could not attach device %s\n", "8259A"); + PrintError("Could not attach device %s\n", name); return -1; }