1 files changed, 55 insertions, 1 deletions

diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
index 90aeefe2a4..d5164457ee 100644
--- a/hw/hppa/machine.c
+++ b/hw/hppa/machine.c
@@ -12,6 +12,7 @@
 #include "qemu/error-report.h"
 #include "sysemu/reset.h"
 #include "sysemu/sysemu.h"
+#include "sysemu/runstate.h"
 #include "hw/rtc/mc146818rtc.h"
 #include "hw/timer/i8254.h"
 #include "hw/char/serial.h"
@@ -27,6 +28,30 @@
 
 #define MIN_SEABIOS_HPPA_VERSION 1 /* require at least this fw version */
 
+#define HPA_POWER_BUTTON (FIRMWARE_END - 0x10)
+
+static void hppa_powerdown_req(Notifier *n, void *opaque)
+{
+    hwaddr soft_power_reg = HPA_POWER_BUTTON;
+    uint32_t val;
+
+    val = ldl_be_phys(&address_space_memory, soft_power_reg);
+    if ((val >> 8) == 0) {
+        /* immediately shut down when under hardware control */
+        qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
+        return;
+    }
+
+    /* clear bit 31 to indicate that the power switch was pressed. */
+    val &= ~1;
+    stl_be_phys(&address_space_memory, soft_power_reg, val);
+}
+
+static Notifier hppa_system_powerdown_notifier = {
+    .notify = hppa_powerdown_req
+};
+
+
 static ISABus *hppa_isa_bus(void)
 {
     ISABus *isa_bus;
@@ -58,12 +83,18 @@ static uint64_t cpu_hppa_to_phys(void *opaque, uint64_t addr)
 static HPPACPU *cpu[HPPA_MAX_CPUS];
 static uint64_t firmware_entry;
 
+static void fw_cfg_boot_set(void *opaque, const char *boot_device,
+                            Error **errp)
+{
+    fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
+}
+
 static FWCfgState *create_fw_cfg(MachineState *ms)
 {
     FWCfgState *fw_cfg;
     uint64_t val;
 
-    fw_cfg = fw_cfg_init_mem(QEMU_FW_CFG_IO_BASE, QEMU_FW_CFG_IO_BASE + 4);
+    fw_cfg = fw_cfg_init_mem(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4);
     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, HPPA_MAX_CPUS);
     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, ram_size);
@@ -72,6 +103,21 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
     fw_cfg_add_file(fw_cfg, "/etc/firmware-min-version",
                     g_memdup(&val, sizeof(val)), sizeof(val));
 
+    val = cpu_to_le64(HPPA_TLB_ENTRIES);
+    fw_cfg_add_file(fw_cfg, "/etc/cpu/tlb_entries",
+                    g_memdup(&val, sizeof(val)), sizeof(val));
+
+    val = cpu_to_le64(HPPA_BTLB_ENTRIES);
+    fw_cfg_add_file(fw_cfg, "/etc/cpu/btlb_entries",
+                    g_memdup(&val, sizeof(val)), sizeof(val));
+
+    val = cpu_to_le64(HPA_POWER_BUTTON);
+    fw_cfg_add_file(fw_cfg, "/etc/power-button-addr",
+                    g_memdup(&val, sizeof(val)), sizeof(val));
+
+    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_order[0]);
+    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
+
     return fw_cfg;
 }
 
@@ -160,6 +206,9 @@ static void machine_hppa_init(MachineState *machine)
         }
     }
 
+    /* register power switch emulation */
+    qemu_register_powerdown_notifier(&hppa_system_powerdown_notifier);
+
     /* Load firmware.  Given that this is not "real" firmware,
        but one explicitly written for the emulation, we might as
        well load it directly from an ELF image.  */
@@ -273,6 +322,9 @@ static void machine_hppa_init(MachineState *machine)
 
     /* tell firmware how many SMP CPUs to present in inventory table */
     cpu[0]->env.gr[21] = smp_cpus;
+
+    /* tell firmware fw_cfg port */
+    cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
 }
 
 static void hppa_machine_reset(MachineState *ms)
@@ -300,6 +352,8 @@ static void hppa_machine_reset(MachineState *ms)
     cpu[0]->env.gr[24] = 'c';
     /* gr22/gr23 unused, no initrd while reboot. */
     cpu[0]->env.gr[21] = smp_cpus;
+    /* tell firmware fw_cfg port */
+    cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
 }