-/*Zheng 07/30/2008*/
+
void init_interrupt_state(struct guest_info * info) {
info->intr_state.excp_pending = 0;
info->intr_state.excp_num = 0;
info->intr_state.excp_error_code = 0;
+ memset((uchar_t *)(info->intr_state.hooks), 0, sizeof(struct v3_irq_hook *) * 256);
+
info->vm_ops.raise_irq = &v3_raise_irq;
- info->vm_ops.lower_irq = &v3_lower_irq; //Zheng added
+ info->vm_ops.lower_irq = &v3_lower_irq;
}
void set_intr_controller(struct guest_info * info, struct intr_ctrl_ops * ops, void * state) {
-// This structure is used to dispatch
-// interrupts delivered to vmm via deliver interrupt to vmm
-// it is what we put into the opaque field given to
-// the host os when we install the handler
-struct vmm_intr_decode {
- void (*handler)(struct vmm_intr_state *state);
- // This opaque is user supplied by the caller
- // of hook_irq_new
- void *opaque;
-};
-int v3_hook_irq(uint_t irq,
- void (*handler)(struct vmm_intr_state *state),
- void *opaque)
+static inline struct v3_irq_hook * get_irq_hook(struct guest_info * info, uint_t irq) {
+ V3_ASSERT(irq <= 256);
+ return info->intr_state.hooks[irq];
+}
+
+
+int v3_hook_irq(struct guest_info * info,
+ uint_t irq,
+ int (*handler)(struct guest_info * info, struct v3_interrupt * intr, void * priv_data),
+ void * priv_data)
{
- struct vmm_intr_decode *d = (struct vmm_intr_decode *)V3_Malloc(sizeof(struct vmm_intr_decode));
+ struct v3_irq_hook * hook = (struct v3_irq_hook *)V3_Malloc(sizeof(struct v3_irq_hook));
- if (!d) { return -1; }
+ if (hook == NULL) {
+ return -1;
+ }
+
+ if (get_irq_hook(info, irq) != NULL) {
+ PrintError("IRQ %d already hooked\n", irq);
+ return -1;
+ }
- d->handler = handler;
- d->opaque = opaque;
+ hook->handler = handler;
+ hook->priv_data = priv_data;
- if (V3_Hook_Interrupt(irq,d)) {
- PrintError("hook_irq: failed to hook irq 0x%x to decode 0x%x\n", irq,d);
+ info->intr_state.hooks[irq] = hook;
+
+ if (V3_Hook_Interrupt(info, irq)) {
+ PrintError("hook_irq: failed to hook irq %d\n", irq);
return -1;
} else {
- PrintDebug("hook_irq: hooked irq 0x%x to decode 0x%x\n", irq,d);
+ PrintDebug("hook_irq: hooked irq %d\n", irq);
return 0;
}
}
-void deliver_interrupt_to_vmm(struct vmm_intr_state *state)
-{
-
- PrintDebug("deliver_interrupt_to_vmm: state=0x%x\n",state);
-
- struct vmm_intr_decode *d = (struct vmm_intr_decode *)(state->opaque);
-
- void *temp = state->opaque;
- state->opaque = d->opaque;
- d->handler(state);
-
- state->opaque=temp;
-}
+static int passthrough_irq_handler(struct guest_info * info, struct v3_interrupt * intr, void * priv_data)
+{
+ PrintDebug("[passthrough_irq_handler] raise_irq=%d (guest=0x%x)\n", intr->irq, info);
+ return v3_raise_irq(info, intr->irq);
-static void guest_injection_irq_handler(struct vmm_intr_state *state)
-{
- struct guest_info *guest = (struct guest_info *)(state->opaque);
- PrintDebug("[guest_injection_irq_handler] raise_irq=0x%x (guest=0x%x)\n", state->irq, guest);
- PrintDebug("guest_irq_injection: state=0x%x\n", state);
- guest->vm_ops.raise_irq(guest,state->irq);
}
-
-int v3_hook_irq_for_guest_injection(struct guest_info *info, int irq)
+int v3_hook_passthrough_irq(struct guest_info * info, uint_t irq)
{
- int rc = v3_hook_irq(irq,
- guest_injection_irq_handler,
- info);
+ int rc = v3_hook_irq(info,
+ irq,
+ passthrough_irq_handler,
+ NULL);
if (rc) {
PrintError("guest_irq_injection: failed to hook irq 0x%x (guest=0x%x)\n", irq, info);
+
+int v3_deliver_irq(struct guest_info * info, struct v3_interrupt * intr) {
+ PrintDebug("v3_deliver_irq: irq=%d state=0x%x, \n", intr->irq, intr);
+
+ struct v3_irq_hook * hook = get_irq_hook(info, intr->irq);
+
+ if (hook == NULL) {
+ PrintError("Attempting to deliver interrupt to non registered hook(irq=%d)\n", intr->irq);
+ return -1;
+ }
+
+ return hook->handler(info, intr, hook->priv_data);
+}
+
+
+
+
+
+
+
+
int v3_raise_exception_with_error(struct guest_info * info, uint_t excp, uint_t error_code) {
- struct vm_intr * intr_state = &(info->intr_state);
+ struct v3_intr_state * intr_state = &(info->intr_state);
if (intr_state->excp_pending == 0) {
intr_state->excp_pending = 1;
}
int v3_raise_exception(struct guest_info * info, uint_t excp) {
- struct vm_intr * intr_state = &(info->intr_state);
+ struct v3_intr_state * intr_state = &(info->intr_state);
PrintDebug("[v3_raise_exception]\n");
if (intr_state->excp_pending == 0) {
intr_state->excp_pending = 1;
return 0;
}
-/*Zheng 07/30/2008*/
int v3_lower_irq(struct guest_info * info, int irq) {
// Look up PIC and resend
V3_ASSERT(info);
V3_ASSERT(info->intr_state.controller);
- V3_ASSERT(info->intr_state.controller->raise_intr);
+ V3_ASSERT(info->intr_state.controller->lower_intr);
PrintDebug("[v3_lower_irq]\n");
if ((info->intr_state.controller) &&
- (info->intr_state.controller->raise_intr)) {
+ (info->intr_state.controller->lower_intr)) {
info->intr_state.controller->lower_intr(info->intr_state.controller_state, irq);
} else {
PrintDebug("There is no registered Interrupt Controller... (NULL POINTER)\n");
int intr_pending(struct guest_info * info) {
- struct vm_intr * intr_state = &(info->intr_state);
+ struct v3_intr_state * intr_state = &(info->intr_state);
// PrintDebug("[intr_pending]\n");
if (intr_state->excp_pending == 1) {
uint_t get_intr_number(struct guest_info * info) {
- struct vm_intr * intr_state = &(info->intr_state);
+ struct v3_intr_state * intr_state = &(info->intr_state);
if (intr_state->excp_pending == 1) {
return intr_state->excp_num;
intr_type_t get_intr_type(struct guest_info * info) {
- struct vm_intr * intr_state = &(info->intr_state);
+ struct v3_intr_state * intr_state = &(info->intr_state);
if (intr_state->excp_pending) {
PrintDebug("[get_intr_type] Exception\n");
int injecting_intr(struct guest_info * info, uint_t intr_num, intr_type_t type) {
- struct vm_intr * intr_state = &(info->intr_state);
+ struct v3_intr_state * intr_state = &(info->intr_state);
if (type == EXCEPTION) {
PrintDebug("[injecting_intr] Exception\n");
