Add PowerPC power-management state check callback.

[qemu] / hw / acpi.c

diff --git a/hw/acpi.c b/hw/acpi.c
index ce3f7f2..6e3f69e 100644 (file)
--- a/hw/acpi.c
+++ b/hw/acpi.c
@@ -1,8 +1,8 @@
 /*
  * ACPI implementation
- * 
+ *
  * Copyright (c) 2006 Fabrice Bellard
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License version 2 as published by the Free Software Foundation.
@@ -54,6 +54,9 @@ typedef struct PIIX4PMState {
 
 #define SUS_EN (1 << 13)
 
+#define ACPI_ENABLE 0xf1
+#define ACPI_DISABLE 0xf0
+
 #define SMBHSTSTS 0x00
 #define SMBHSTCNT 0x02
 #define SMBHSTCMD 0x03
@@ -84,9 +87,9 @@ static void pm_update_sci(PIIX4PMState *s)
 {
     int sci_level, pmsts;
     int64_t expire_time;
-    
+
     pmsts = get_pmsts(s);
-    sci_level = (((pmsts & s->pmen) & 
+    sci_level = (((pmsts & s->pmen) &
                   (RTC_EN | PWRBTN_EN | GBL_EN | TMROF_EN)) != 0);
     qemu_set_irq(s->dev.irq[0], sci_level);
     /* schedule a timer interruption if needed */
@@ -216,6 +219,14 @@ static void pm_smi_writeb(void *opaque, uint32_t addr, uint32_t val)
 #endif
     if (addr == 0) {
         s->apmc = val;
+
+        /* ACPI specs 3.0, 4.7.2.5 */
+        if (val == ACPI_ENABLE) {
+            s->pmcntrl |= SCI_EN;
+        } else if (val == ACPI_DISABLE) {
+            s->pmcntrl &= ~SCI_EN;
+        }
+
         if (s->dev.config[0x5b] & (1 << 1)) {
             cpu_interrupt(first_cpu, CPU_INTERRUPT_SMI);
         }
@@ -228,7 +239,7 @@ static uint32_t pm_smi_readb(void *opaque, uint32_t addr)
 {
     PIIX4PMState *s = opaque;
     uint32_t val;
-    
+
     addr &= 1;
     if (addr == 0) {
         val = s->apmc;
@@ -389,7 +400,7 @@ static void pm_io_space_update(PIIX4PMState *s)
 
     if (s->dev.config[0x80] & 1) {
         pm_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x40));
-        pm_io_base &= 0xfffe;
+        pm_io_base &= 0xffc0;
 
         /* XXX: need to improve memory and ioport allocation */
 #if defined(DEBUG)
@@ -402,7 +413,7 @@ static void pm_io_space_update(PIIX4PMState *s)
     }
 }
 
-static void pm_write_config(PCIDevice *d, 
+static void pm_write_config(PCIDevice *d,
                             uint32_t address, uint32_t val, int len)
 {
     pci_default_write_config(d, address, val, len);
@@ -463,15 +474,17 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base)
     pci_conf[0x01] = 0x80;
     pci_conf[0x02] = 0x13;
     pci_conf[0x03] = 0x71;
+    pci_conf[0x06] = 0x80;
+    pci_conf[0x07] = 0x02;
     pci_conf[0x08] = 0x00; // revision number
     pci_conf[0x09] = 0x00;
     pci_conf[0x0a] = 0x80; // other bridge device
     pci_conf[0x0b] = 0x06; // bridge device
     pci_conf[0x0e] = 0x00; // header_type
     pci_conf[0x3d] = 0x01; // interrupt pin 1
-    
+
     pci_conf[0x40] = 0x01; /* PM io base read only bit */
-    
+
     register_ioport_write(0xb2, 2, 1, pm_smi_writeb, s);
     register_ioport_read(0xb2, 2, 1, pm_smi_readb, s);