#include <palacios/vmm_ctrl_regs.h>
#include <palacios/vmm_lock.h>
+#include <palacios/vm_guest_mem.h>
+#include <palacios/vmm_decoder.h>
#ifndef V3_CONFIG_DEBUG_INTERRUPTS
#undef PrintDebug
-
struct intr_controller {
struct intr_ctrl_ops * ctrl_ops;
};
+
+
void v3_init_intr_controllers(struct guest_info * info) {
struct v3_intr_core_state * intr_state = &(info->intr_core_state);
}
}
+
void * v3_register_intr_controller(struct guest_info * info, struct intr_ctrl_ops * ops, void * priv_data) {
struct intr_controller * ctrlr = (struct intr_controller *)V3_Malloc(sizeof(struct intr_controller));
return (void *)ctrlr;
}
+
void v3_remove_intr_controller(struct guest_info * core, void * handle) {
struct v3_intr_core_state * intr_state = &(core->intr_core_state);
struct intr_controller * ctrlr = handle;
V3_Free(ctrlr);
}
+
void * v3_register_intr_router(struct v3_vm_info * vm, struct intr_router_ops * ops, void * priv_data) {
struct intr_router * router = (struct intr_router *)V3_Malloc(sizeof(struct intr_router));
return (void *)router;
}
+
void v3_remove_intr_router(struct v3_vm_info * vm, void * handle) {
struct intr_router * router = handle;
struct intr_router * tmp = NULL;
}
-
-static inline struct v3_irq_hook * get_irq_hook(struct v3_vm_info * vm, uint_t irq) {
- V3_ASSERT(irq <= 256);
+static inline struct v3_irq_hook * get_irq_hook(struct v3_vm_info * vm, uint8_t irq) {
return vm->intr_routers.hooks[irq];
}
}
-
static int passthrough_irq_handler(struct v3_vm_info * vm, struct v3_interrupt * intr, void * priv_data) {
PrintDebug("[passthrough_irq_handler] raise_irq=%d (guest=0x%p)\n",
intr->irq, (void *)vm);
return v3_raise_irq(vm, intr->irq);
}
+
int v3_hook_passthrough_irq(struct v3_vm_info * vm, uint_t irq) {
int rc = v3_hook_irq(vm, irq, passthrough_irq_handler, NULL);
}
-
-
-
int v3_deliver_irq(struct v3_vm_info * vm, struct v3_interrupt * intr) {
PrintDebug("v3_deliver_irq: irq=%d state=0x%p, \n", intr->irq, (void *)intr);
}
-
-
-
int v3_raise_virq(struct guest_info * info, int irq) {
struct v3_intr_core_state * intr_state = &(info->intr_core_state);
int major = irq / 8;
return 0;
}
+
int v3_lower_virq(struct guest_info * info, int irq) {
struct v3_intr_core_state * intr_state = &(info->intr_core_state);
int major = irq / 8;
return 0;
}
+
int v3_raise_irq(struct v3_vm_info * vm, int irq) {
struct intr_router * router = NULL;
struct v3_intr_routers * routers = &(vm->intr_routers);
}
+int v3_signal_swintr(struct guest_info * core, int vector) {
+ struct v3_intr_core_state * intr_state = &(core->intr_core_state);
+
+ PrintDebug("Signaling software interrupt in vmm_intr.c\n");
+ PrintDebug("\tINT vector: %d\n", vector);
+
+ intr_state->swintr_posted = 1;
+ intr_state->swintr_vector = vector;
+ return 0;
+}
+
+
+int v3_handle_swintr(struct guest_info * core) {
+
+ int ret = 0;
+ void * instr_ptr = NULL;
+ struct x86_instr instr;
+
+ if (core->mem_mode == PHYSICAL_MEM) {
+ ret = v3_gpa_to_hva(core, get_addr_linear(core, core->rip, &(core->segments.cs)), (addr_t *)&instr_ptr);
+ } else {
+ ret = v3_gva_to_hva(core, get_addr_linear(core, core->rip, &(core->segments.cs)), (addr_t *)&instr_ptr);
+ }
+
+ if (ret == -1) {
+ PrintError("V3 SWintr Handler: Could not translate Instruction Address (%p)\n", (void *)core->rip);
+ return -1;
+ }
+
+ if (v3_decode(core, (addr_t)instr_ptr, &instr) == -1) {
+ PrintError("V3 SWintr Handler: Decoding Error\n");
+ return -1;
+ }
+
+ uint8_t vector = instr.dst_operand.operand;
+
+ struct v3_swintr_hook * hook = core->intr_core_state.swintr_hooks[vector];
+ if (hook == NULL) {
+#ifdef V3_CONFIG_SWINTR_PASSTHROUGH
+ if (v3_hook_passthrough_swintr(core, vector) == -1) {
+ PrintDebug("V3 SWintr Handler: Error hooking passthrough swintr\n");
+ return -1;
+ }
+ hook = core->intr_core_state.swintr_hooks[vector];
+#else
+ core->rip += instr.instr_length;
+ return v3_signal_swintr(core, vector);
+#endif
+ }
+
+ ret = hook->handler(core, vector, NULL);
+ if (ret == -1) {
+ PrintDebug("V3 SWintr Handler: Error in swintr hook\n");
+ return -1;
+ }
+
+ /* KCH: at some point we may need to prioritize swints
+ so that they finish in time for the next
+ instruction... */
+ core->rip += instr.instr_length;
+ return v3_signal_swintr(core, vector);
+}
+
+
+static inline struct v3_swintr_hook * get_swintr_hook(struct guest_info * core, uint8_t vector) {
+ return core->intr_core_state.swintr_hooks[vector];
+}
+
+
+int v3_hook_swintr(struct guest_info * core,
+ uint8_t vector,
+ int (*handler)(struct guest_info * core, uint8_t vector, void * priv_data),
+ void * priv_data)
+{
+
+ struct v3_swintr_hook * hook = (struct v3_swintr_hook *)V3_Malloc(sizeof(struct v3_swintr_hook));
+
+ if (hook == NULL) {
+ return -1;
+ }
+
+ if (get_swintr_hook(core, vector) != NULL) {
+ PrintError("SWINT %d already hooked\n", vector);
+ return -1;
+ }
+
+ hook->handler = handler;
+ hook->priv_data = priv_data;
+
+ core->intr_core_state.swintr_hooks[vector] = hook;
+
+ return 0;
+}
+
+
+static int passthrough_swintr_handler(struct guest_info * core, uint8_t vector, void * priv_data) {
+
+ PrintDebug("[passthrough_swint_handler] INT vector=%d (guest=0x%p)\n",
+ vector, (void *)core);
+
+ return 0;
+}
+
+
+int v3_hook_passthrough_swintr(struct guest_info * core, uint8_t vector) {
+
+ int rc = v3_hook_swintr(core, vector, passthrough_swintr_handler, NULL);
+
+ if (rc) {
+ PrintError("guest_swintr_injection: failed to hook swint 0x%x (guest=0x%p)\n", vector, (void *)core);
+ return -1;
+ } else {
+ PrintDebug("guest_swintr_injection: hooked swint 0x%x (guest=0x%p)\n", vector, (void *)core);
+ return 0;
+ }
+
+ /* shouldn't get here */
+ return 0;
+}
+
+
void v3_clear_pending_intr(struct guest_info * core) {
struct v3_intr_core_state * intr_state = &(core->intr_core_state);
intr_state->irq_pending = 0;
-
}
}
}
+ // KCH: added for SWintr injection
+ if (intr_state->swintr_posted == 1) {
+ ret = V3_SOFTWARE_INTR;
+ }
+
v3_unlock_irqrestore(intr_state->irq_lock, irq_state);
return ret;
*/
-
-
-
int v3_injecting_intr(struct guest_info * info, uint_t intr_num, v3_intr_type_t type) {
struct v3_intr_core_state * intr_state = &(info->intr_core_state);
