X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fapic.c;h=ccb89e3e82113225f8f774604982713d72cd3b3d;hp=098b87de05e4470a5107aeac9f17236439a0f41c;hb=123a1ba27ea09c8fa77a1b36ce625b43d7c48b14;hpb=19b2e4b4ce85ae4e683a3ede33360bdf7547b069

diff --git a/palacios/src/devices/apic.c b/palacios/src/devices/apic.c
index 098b87d..ccb89e3 100644
--- a/palacios/src/devices/apic.c
+++ b/palacios/src/devices/apic.c
@@ -22,7 +22,7 @@
 #include <devices/apic_regs.h>
 #include <palacios/vmm.h>
 #include <palacios/vmm_msr.h>
-
+#include <palacios/vm_guest.h>
 
 #ifndef CONFIG_DEBUG_APIC
 #undef PrintDebug
@@ -183,6 +183,8 @@ struct apic_state {
 
 };
 
+static int apic_read(addr_t guest_addr, void * dst, uint_t length, void * priv_data);
+static int apic_write(addr_t guest_addr, void * src, uint_t length, void * priv_data);
 
 static void init_apic_state(struct apic_state * apic) {
     apic->base_addr = DEFAULT_BASE_ADDR;
@@ -242,12 +244,26 @@ static int read_apic_msr(uint_t msr, v3_msr_t * dst, void * priv_data) {
 
 
 static int write_apic_msr(uint_t msr, v3_msr_t src, void * priv_data) {
-    //  struct vm_device * dev = (struct vm_device *)priv_data;
-    //  struct apic_state * apic = (struct apic_state *)dev->private_data;
+    struct vm_device * dev = (struct vm_device *)priv_data;
+    struct apic_state * apic = (struct apic_state *)dev->private_data;
+    struct v3_shadow_region * old_reg = v3_get_shadow_region(dev->vm, apic->base_addr);
+
+    if (old_reg == NULL) {
+	// uh oh...
+	PrintError("APIC Base address region does not exit...\n");
+	return -1;
+    }
+    
+    v3_delete_shadow_region(dev->vm, old_reg);
 
-    PrintError("WRITING APIC BASE ADDR: HI=%x LO=%x\n", src.hi, src.lo);
+    apic->base_addr = src.value;
 
-    return -1;
+    if (v3_hook_full_mem(dev->vm, apic->base_addr, apic->base_addr + PAGE_SIZE_4KB, apic_read, apic_write, dev) == -1) {
+	PrintError("Could not hook new APIC Base address\n");
+	return -1;
+    }
+
+    return 0;
 }
 
 
@@ -266,6 +282,10 @@ static int activate_apic_irq(struct apic_state * apic, uint32_t irq_num) {
 
     PrintDebug("Raising APIC IRQ %d\n", irq_num);
 
+    if (*req_location & flag) {
+	V3_Print("Interrupts coallescing\n");
+    }
+
     if (*en_location & flag) {
 	*req_location |= flag;
     } else {
@@ -923,6 +943,8 @@ int v3_apic_raise_intr(struct guest_info * info, struct vm_device * apic_dev, in
 	return -1;
     } 
 
+    v3_interrupt_cpu(info, 0);
+
     return 0;
 }
 
@@ -998,7 +1020,7 @@ static void apic_update_time(ullong_t cpu_cycles, ullong_t cpu_freq, void * priv
 		   apic->tmr_vec_tbl.tmr_mode, apic->tmr_init_cnt, shift_num);
 
 	if (apic_intr_pending(dev->vm, priv_data)) {
-	    PrintDebug("Overriding pending IRQ %d\n", apic_get_intr_number(priv_data));
+	    PrintDebug("Overriding pending IRQ %d\n", apic_get_intr_number(dev->vm, priv_data));
 	}
 
 	if (activate_internal_irq(apic, APIC_TMR_INT) == -1) {
@@ -1050,15 +1072,16 @@ static struct v3_device_ops dev_ops = {
 
 
 
-static int apic_init(struct guest_info * vm, void * cfg_data) {
+static int apic_init(struct guest_info * vm, v3_cfg_tree_t * cfg) {
     PrintDebug("Creating APIC\n");
+    char * name = v3_cfg_val(cfg, "name");
 
     struct apic_state * apic = (struct apic_state *)V3_Malloc(sizeof(struct apic_state));
 
-    struct vm_device * dev = v3_allocate_device("LAPIC", &dev_ops, apic);
+    struct vm_device * dev = v3_allocate_device(name, &dev_ops, apic);
 
     if (v3_attach_device(vm, dev) == -1) {
-	PrintError("Could not attach device %s\n", "LAPIC");
+	PrintError("Could not attach device %s\n", name);
 	return -1;
     }