VMX is working for a 32-bit Linux kernel. It should also work for a 64-bit kernel...

[palacios.git] / palacios / src / devices / apic.c

diff --git a/palacios/src/devices/apic.c b/palacios/src/devices/apic.c
index 92e6683..34ac432 100644 (file)
--- a/palacios/src/devices/apic.c
+++ b/palacios/src/devices/apic.c
@@ -24,7 +24,7 @@
 #include <palacios/vmm_msr.h>
 
 
-#ifndef DEBUG_APIC
+#ifndef CONFIG_DEBUG_APIC
 #undef PrintDebug
 #define PrintDebug(fmt, args...)
 #endif
@@ -236,9 +236,8 @@ static void init_apic_state(struct apic_state * apic) {
 static int read_apic_msr(uint_t msr, v3_msr_t * dst, void * priv_data) {
     struct vm_device * dev = (struct vm_device *)priv_data;
     struct apic_state * apic = (struct apic_state *)dev->private_data;
-    PrintError("READING APIC BASE ADDR: HI=%x LO=%x\n", apic->base_addr_msr.hi, apic->base_addr_msr.lo);
-
-    return -1;
+    dst->value = apic->base_addr;
+    return 0;
 }
 
 
@@ -333,11 +332,11 @@ static int apic_do_eoi(struct apic_state * apic) {
        uchar_t flag = 0x1 << minor_offset;
        uchar_t * svc_location = apic->int_svc_reg + major_offset;
        
-       PrintDebug("Received APIC EOI\n");
+       PrintDebug("Received APIC EOI for IRQ %d\n", isr_irq);
        
        *svc_location &= ~flag;
 
-#ifdef CRAY_XT
+#ifdef CONFIG_CRAY_XT
        
        if ((isr_irq == 238) || 
            (isr_irq == 239)) {
@@ -875,7 +874,7 @@ static int apic_get_intr_number(void * private_data) {
 }
 
 static int apic_raise_intr(void * private_data, int irq) {
-#ifdef CRAY_XT
+#ifdef CONFIG_CRAY_XT
     // The Seastar is connected directly to the LAPIC via LINT0 on the ICC bus
 
     if (irq == 238) {
@@ -904,7 +903,7 @@ static int apic_begin_irq(void * private_data, int irq) {
     *svc_location |= flag;
     *req_location &= ~flag;
 
-#ifdef CRAY_XT
+#ifdef CONFIG_CRAY_XT
     if ((irq == 238) || (irq == 239)) {
        PrintError("APIC: Begin IRQ %d (ISR=%x), (IRR=%x)\n", irq, *svc_location, *req_location);
     }
@@ -979,7 +978,7 @@ static void apic_update_time(ullong_t cpu_cycles, ullong_t cpu_freq, void * priv
     }
 
     tmr_ticks = cpu_cycles >> shift_num;
-    PrintDebug("Timer Ticks: %p\n", (void *)tmr_ticks);
+    //    PrintDebug("Timer Ticks: %p\n", (void *)tmr_ticks);
 
     if (tmr_ticks < apic->tmr_cur_cnt) {
        apic->tmr_cur_cnt -= tmr_ticks;
@@ -991,6 +990,10 @@ static void apic_update_time(ullong_t cpu_cycles, ullong_t cpu_freq, void * priv
        PrintDebug("Raising APIC Timer interrupt (periodic=%d) (icnt=%d) (div=%d)\n", 
                   apic->tmr_vec_tbl.tmr_mode, apic->tmr_init_cnt, shift_num);
 
+       if (apic_intr_pending(priv_data)) {
+           PrintDebug("Overriding pending IRQ %d\n", apic_get_intr_number(priv_data));
+       }
+
        if (activate_internal_irq(apic, APIC_TMR_INT) == -1) {
            PrintError("Could not raise Timer interrupt\n");
        }
@@ -1020,23 +1023,9 @@ static struct vm_timer_ops timer_ops = {
 };
 
 
-static int apic_init(struct vm_device * dev) {
-    struct guest_info * info = dev->vm;
-    struct apic_state * apic = (struct apic_state *)(dev->private_data);
-
-    v3_register_intr_controller(dev->vm, &intr_ops, dev);
-    v3_add_timer(dev->vm, &timer_ops, dev);
-
-    init_apic_state(apic);
-
-    v3_hook_msr(info, BASE_ADDR_MSR, read_apic_msr, write_apic_msr, dev);
 
-    v3_hook_full_mem(info, apic->base_addr, apic->base_addr + PAGE_SIZE_4KB, apic_read, apic_write, dev);
 
-    return 0;
-}
-
-static int apic_deinit(struct vm_device * dev) {
+static int apic_free(struct vm_device * dev) {
     struct guest_info * info = dev->vm;
 
     v3_unhook_msr(info, BASE_ADDR_MSR);
@@ -1045,21 +1034,39 @@ static int apic_deinit(struct vm_device * dev) {
 }
 
 
-static struct vm_device_ops dev_ops = {
-    .init = apic_init,
-    .deinit = apic_deinit,
+static struct v3_device_ops dev_ops = {
+    .free = apic_free,
     .reset = NULL,
     .start = NULL,
     .stop = NULL,
 };
 
 
-struct vm_device * v3_create_apic() {
+
+static int apic_init(struct guest_info * vm, void * cfg_data) {
     PrintDebug("Creating APIC\n");
 
     struct apic_state * apic = (struct apic_state *)V3_Malloc(sizeof(struct apic_state));
 
-    struct vm_device * device = v3_create_device("APIC", &dev_ops, apic);
-  
-    return device;
+    struct vm_device * dev = v3_allocate_device("LAPIC", &dev_ops, apic);
+
+    if (v3_attach_device(vm, dev) == -1) {
+       PrintError("Could not attach device %s\n", "LAPIC");
+       return -1;
+    }
+
+    v3_register_intr_controller(vm, &intr_ops, dev);
+    v3_add_timer(vm, &timer_ops, dev);
+
+    init_apic_state(apic);
+
+    v3_hook_msr(vm, BASE_ADDR_MSR, read_apic_msr, write_apic_msr, dev);
+
+    v3_hook_full_mem(vm, apic->base_addr, apic->base_addr + PAGE_SIZE_4KB, apic_read, apic_write, dev);
+
+    return 0;
 }
+
+
+
+device_register("LAPIC", apic_init)