/*
* 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.
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
*/
-#include "vl.h"
+#include "sysemu.h"
+#include "hw.h"
+#include "pc.h"
+#include "acpi.h"
-//#define DEBUG
+struct acpi_table_header
+{
+ char signature [4]; /* ACPI signature (4 ASCII characters) */
+ uint32_t length; /* Length of table, in bytes, including header */
+ uint8_t revision; /* ACPI Specification minor version # */
+ uint8_t checksum; /* To make sum of entire table == 0 */
+ char oem_id [6]; /* OEM identification */
+ char oem_table_id [8]; /* OEM table identification */
+ uint32_t oem_revision; /* OEM revision number */
+ char asl_compiler_id [4]; /* ASL compiler vendor ID */
+ uint32_t asl_compiler_revision; /* ASL compiler revision number */
+} __attribute__((packed));
+
+char *acpi_tables;
+size_t acpi_tables_len;
-/* i82731AB (PIIX4) compatible power management function */
-#define PM_FREQ 3579545
+static int acpi_checksum(const uint8_t *data, int len)
+{
+ int sum, i;
+ sum = 0;
+ for(i = 0; i < len; i++)
+ sum += data[i];
+ return (-sum) & 0xff;
+}
-/* XXX: make them variable */
-#define PM_IO_BASE 0xb000
-#define SMI_CMD_IO_ADDR 0xb040
-#define ACPI_DBG_IO_ADDR 0xb044
+int acpi_table_add(const char *t)
+{
+ static const char *dfl_id = "QEMUQEMU";
+ char buf[1024], *p, *f;
+ struct acpi_table_header acpi_hdr;
+ unsigned long val;
+ uint32_t length;
+ struct acpi_table_header *acpi_hdr_p;
+ size_t off;
+
+ memset(&acpi_hdr, 0, sizeof(acpi_hdr));
+
+ if (get_param_value(buf, sizeof(buf), "sig", t)) {
+ strncpy(acpi_hdr.signature, buf, 4);
+ } else {
+ strncpy(acpi_hdr.signature, dfl_id, 4);
+ }
+ if (get_param_value(buf, sizeof(buf), "rev", t)) {
+ val = strtoul(buf, &p, 10);
+ if (val > 255 || *p != '\0')
+ goto out;
+ } else {
+ val = 1;
+ }
+ acpi_hdr.revision = (int8_t)val;
-typedef struct PIIX4PMState {
- PCIDevice dev;
- uint16_t pmsts;
- uint16_t pmen;
- uint16_t pmcntrl;
- QEMUTimer *tmr_timer;
- int64_t tmr_overflow_time;
-} PIIX4PMState;
+ if (get_param_value(buf, sizeof(buf), "oem_id", t)) {
+ strncpy(acpi_hdr.oem_id, buf, 6);
+ } else {
+ strncpy(acpi_hdr.oem_id, dfl_id, 6);
+ }
-#define RTC_EN (1 << 10)
-#define PWRBTN_EN (1 << 8)
-#define GBL_EN (1 << 5)
-#define TMROF_EN (1 << 0)
+ if (get_param_value(buf, sizeof(buf), "oem_table_id", t)) {
+ strncpy(acpi_hdr.oem_table_id, buf, 8);
+ } else {
+ strncpy(acpi_hdr.oem_table_id, dfl_id, 8);
+ }
-#define SCI_EN (1 << 0)
+ if (get_param_value(buf, sizeof(buf), "oem_rev", t)) {
+ val = strtol(buf, &p, 10);
+ if(*p != '\0')
+ goto out;
+ } else {
+ val = 1;
+ }
+ acpi_hdr.oem_revision = cpu_to_le32(val);
-#define SUS_EN (1 << 13)
+ if (get_param_value(buf, sizeof(buf), "asl_compiler_id", t)) {
+ strncpy(acpi_hdr.asl_compiler_id, buf, 4);
+ } else {
+ strncpy(acpi_hdr.asl_compiler_id, dfl_id, 4);
+ }
-/* Note: only used for ACPI bios init. Could be deleted when ACPI init
- is integrated in Bochs BIOS */
-static PIIX4PMState *piix4_pm_state;
+ if (get_param_value(buf, sizeof(buf), "asl_compiler_rev", t)) {
+ val = strtol(buf, &p, 10);
+ if(*p != '\0')
+ goto out;
+ } else {
+ val = 1;
+ }
+ acpi_hdr.asl_compiler_revision = cpu_to_le32(val);
+
+ if (!get_param_value(buf, sizeof(buf), "data", t)) {
+ buf[0] = '\0';
+ }
-static uint32_t get_pmtmr(PIIX4PMState *s)
-{
- uint32_t d;
- d = muldiv64(qemu_get_clock(vm_clock), PM_FREQ, ticks_per_sec);
- return d & 0xffffff;
-}
+ length = sizeof(acpi_hdr);
+
+ f = buf;
+ while (buf[0]) {
+ struct stat s;
+ char *n = strchr(f, ':');
+ if (n)
+ *n = '\0';
+ if(stat(f, &s) < 0) {
+ fprintf(stderr, "Can't stat file '%s': %s\n", f, strerror(errno));
+ goto out;
+ }
+ length += s.st_size;
+ if (!n)
+ break;
+ *n = ':';
+ f = n + 1;
+ }
-static int get_pmsts(PIIX4PMState *s)
-{
- int64_t d;
- int pmsts;
- pmsts = s->pmsts;
- d = muldiv64(qemu_get_clock(vm_clock), PM_FREQ, ticks_per_sec);
- if (d >= s->tmr_overflow_time)
- s->pmsts |= TMROF_EN;
- return pmsts;
-}
+ if (!acpi_tables) {
+ acpi_tables_len = sizeof(uint16_t);
+ acpi_tables = qemu_mallocz(acpi_tables_len);
+ }
+ acpi_tables = qemu_realloc(acpi_tables,
+ acpi_tables_len + sizeof(uint16_t) + length);
+ p = acpi_tables + acpi_tables_len;
+ acpi_tables_len += sizeof(uint16_t) + length;
+
+ *(uint16_t*)p = cpu_to_le32(length);
+ p += sizeof(uint16_t);
+ memcpy(p, &acpi_hdr, sizeof(acpi_hdr));
+ off = sizeof(acpi_hdr);
+
+ f = buf;
+ while (buf[0]) {
+ struct stat s;
+ int fd;
+ char *n = strchr(f, ':');
+ if (n)
+ *n = '\0';
+ fd = open(f, O_RDONLY);
+
+ if(fd < 0)
+ goto out;
+ if(fstat(fd, &s) < 0) {
+ close(fd);
+ goto out;
+ }
-static void pm_update_sci(PIIX4PMState *s)
-{
- int sci_level, pmsts;
- int64_t expire_time;
-
- pmsts = get_pmsts(s);
- sci_level = (((pmsts & s->pmen) &
- (RTC_EN | PWRBTN_EN | GBL_EN | TMROF_EN)) != 0);
- pci_set_irq(&s->dev, 0, sci_level);
- /* schedule a timer interruption if needed */
- if ((s->pmen & TMROF_EN) && !(pmsts & TMROF_EN)) {
- expire_time = muldiv64(s->tmr_overflow_time, ticks_per_sec, PM_FREQ);
- qemu_mod_timer(s->tmr_timer, expire_time);
- } else {
- qemu_del_timer(s->tmr_timer);
+ /* off < length is necessary because file size can be changed
+ under our foot */
+ while(s.st_size && off < length) {
+ int r;
+ r = read(fd, p + off, s.st_size);
+ if (r > 0) {
+ off += r;
+ s.st_size -= r;
+ } else if ((r < 0 && errno != EINTR) || r == 0) {
+ close(fd);
+ goto out;
+ }
+ }
+
+ close(fd);
+ if (!n)
+ break;
+ f = n + 1;
+ }
+ if (off < length) {
+ /* don't pass random value in process to guest */
+ memset(p + off, 0, length - off);
+ }
+
+ acpi_hdr_p = (struct acpi_table_header*)p;
+ acpi_hdr_p->length = cpu_to_le32(length);
+ acpi_hdr_p->checksum = acpi_checksum((uint8_t*)p, length);
+ /* increase number of tables */
+ (*(uint16_t*)acpi_tables) =
+ cpu_to_le32(le32_to_cpu(*(uint16_t*)acpi_tables) + 1);
+ return 0;
+out:
+ if (acpi_tables) {
+ qemu_free(acpi_tables);
+ acpi_tables = NULL;
}
+ return -1;
}
-static void pm_tmr_timer(void *opaque)
+/* ACPI PM1a EVT */
+uint16_t acpi_pm1_evt_get_sts(ACPIPM1EVT *pm1, int64_t overflow_time)
{
- PIIX4PMState *s = opaque;
- pm_update_sci(s);
+ int64_t d = acpi_pm_tmr_get_clock();
+ if (d >= overflow_time) {
+ pm1->sts |= ACPI_BITMASK_TIMER_STATUS;
+ }
+ return pm1->sts;
}
-static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
+void acpi_pm1_evt_write_sts(ACPIPM1EVT *pm1, ACPIPMTimer *tmr, uint16_t val)
{
- PIIX4PMState *s = opaque;
- addr &= 0x3f;
- switch(addr) {
- case 0x00:
- {
- int64_t d;
- int pmsts;
- pmsts = get_pmsts(s);
- if (pmsts & val & TMROF_EN) {
- /* if TMRSTS is reset, then compute the new overflow time */
- d = muldiv64(qemu_get_clock(vm_clock), PM_FREQ, ticks_per_sec);
- s->tmr_overflow_time = (d + 0x800000LL) & ~0x7fffffLL;
- }
- s->pmsts &= ~val;
- pm_update_sci(s);
- }
- break;
- case 0x02:
- s->pmen = val;
- pm_update_sci(s);
- break;
- case 0x04:
- {
- int sus_typ;
- s->pmcntrl = val & ~(SUS_EN);
- if (val & SUS_EN) {
- /* change suspend type */
- sus_typ = (val >> 10) & 3;
- switch(sus_typ) {
- case 0: /* soft power off */
- qemu_system_shutdown_request();
- break;
- default:
- break;
- }
- }
- }
- break;
- default:
- break;
+ uint16_t pm1_sts = acpi_pm1_evt_get_sts(pm1, tmr->overflow_time);
+ if (pm1_sts & val & ACPI_BITMASK_TIMER_STATUS) {
+ /* if TMRSTS is reset, then compute the new overflow time */
+ acpi_pm_tmr_calc_overflow_time(tmr);
}
-#ifdef DEBUG
- printf("PM writew port=0x%04x val=0x%04x\n", addr, val);
-#endif
+ pm1->sts &= ~val;
}
-static uint32_t pm_ioport_readw(void *opaque, uint32_t addr)
+void acpi_pm1_evt_power_down(ACPIPM1EVT *pm1, ACPIPMTimer *tmr)
{
- PIIX4PMState *s = opaque;
- uint32_t val;
-
- addr &= 0x3f;
- switch(addr) {
- case 0x00:
- val = get_pmsts(s);
- break;
- case 0x02:
- val = s->pmen;
- break;
- case 0x04:
- val = s->pmcntrl;
- break;
- default:
- val = 0;
- break;
+ if (!pm1) {
+ qemu_system_shutdown_request();
+ } else if (pm1->en & ACPI_BITMASK_POWER_BUTTON_ENABLE) {
+ pm1->sts |= ACPI_BITMASK_POWER_BUTTON_STATUS;
+ tmr->update_sci(tmr);
}
-#ifdef DEBUG
- printf("PM readw port=0x%04x val=0x%04x\n", addr, val);
-#endif
- return val;
}
-static void pm_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
+void acpi_pm1_evt_reset(ACPIPM1EVT *pm1)
{
- // PIIX4PMState *s = opaque;
- addr &= 0x3f;
-#ifdef DEBUG
- printf("PM writel port=0x%04x val=0x%08x\n", addr, val);
-#endif
+ pm1->sts = 0;
+ pm1->en = 0;
}
-static uint32_t pm_ioport_readl(void *opaque, uint32_t addr)
+/* ACPI PM_TMR */
+void acpi_pm_tmr_update(ACPIPMTimer *tmr, bool enable)
{
- PIIX4PMState *s = opaque;
- uint32_t val;
+ int64_t expire_time;
- addr &= 0x3f;
- switch(addr) {
- case 0x08:
- val = get_pmtmr(s);
- break;
- default:
- val = 0;
- break;
+ /* schedule a timer interruption if needed */
+ if (enable) {
+ expire_time = muldiv64(tmr->overflow_time, get_ticks_per_sec(),
+ PM_TIMER_FREQUENCY);
+ qemu_mod_timer(tmr->timer, expire_time);
+ } else {
+ qemu_del_timer(tmr->timer);
}
-#ifdef DEBUG
- printf("PM readl port=0x%04x val=0x%08x\n", addr, val);
-#endif
- return val;
}
-static void smi_cmd_writeb(void *opaque, uint32_t addr, uint32_t val)
+void acpi_pm_tmr_calc_overflow_time(ACPIPMTimer *tmr)
{
- PIIX4PMState *s = opaque;
-#ifdef DEBUG
- printf("SMI cmd val=0x%02x\n", val);
-#endif
- switch(val) {
- case 0xf0: /* ACPI disable */
- s->pmcntrl &= ~SCI_EN;
- break;
- case 0xf1: /* ACPI enable */
- s->pmcntrl |= SCI_EN;
- break;
- }
+ int64_t d = acpi_pm_tmr_get_clock();
+ tmr->overflow_time = (d + 0x800000LL) & ~0x7fffffLL;
}
-static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val)
+uint32_t acpi_pm_tmr_get(ACPIPMTimer *tmr)
{
-#if defined(DEBUG)
- printf("ACPI: DBG: 0x%08x\n", val);
-#endif
+ uint32_t d = acpi_pm_tmr_get_clock();;
+ return d & 0xffffff;
}
-/* XXX: we still add it to the PIIX3 and we count on the fact that
- OSes are smart enough to accept this strange configuration */
-void piix4_pm_init(PCIBus *bus, int devfn)
+static void acpi_pm_tmr_timer(void *opaque)
{
- PIIX4PMState *s;
- uint8_t *pci_conf;
- uint32_t pm_io_base;
-
- s = (PIIX4PMState *)pci_register_device(bus,
- "PM", sizeof(PIIX4PMState),
- devfn, NULL, NULL);
- pci_conf = s->dev.config;
- pci_conf[0x00] = 0x86;
- pci_conf[0x01] = 0x80;
- pci_conf[0x02] = 0x13;
- pci_conf[0x03] = 0x71;
- 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[0x60] = 0x10; // release number
-
- pm_io_base = PM_IO_BASE;
- pci_conf[0x40] = pm_io_base | 1;
- pci_conf[0x41] = pm_io_base >> 8;
- register_ioport_write(pm_io_base, 64, 2, pm_ioport_writew, s);
- register_ioport_read(pm_io_base, 64, 2, pm_ioport_readw, s);
- register_ioport_write(pm_io_base, 64, 4, pm_ioport_writel, s);
- register_ioport_read(pm_io_base, 64, 4, pm_ioport_readl, s);
-
- register_ioport_write(SMI_CMD_IO_ADDR, 1, 1, smi_cmd_writeb, s);
- register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s);
-
- s->tmr_timer = qemu_new_timer(vm_clock, pm_tmr_timer, s);
- piix4_pm_state = s;
+ ACPIPMTimer *tmr = opaque;
+ tmr->update_sci(tmr);
}
-/* ACPI tables */
-/* XXX: move them in the Bochs BIOS ? */
-
-/*************************************************/
-
-/* Table structure from Linux kernel (the ACPI tables are under the
- BSD license) */
-
-#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \
- uint8_t signature [4]; /* ACPI signature (4 ASCII characters) */\
- uint32_t length; /* Length of table, in bytes, including header */\
- uint8_t revision; /* ACPI Specification minor version # */\
- uint8_t checksum; /* To make sum of entire table == 0 */\
- uint8_t oem_id [6]; /* OEM identification */\
- uint8_t oem_table_id [8]; /* OEM table identification */\
- uint32_t oem_revision; /* OEM revision number */\
- uint8_t asl_compiler_id [4]; /* ASL compiler vendor ID */\
- uint32_t asl_compiler_revision; /* ASL compiler revision number */
-
-
-struct acpi_table_header /* ACPI common table header */
+void acpi_pm_tmr_init(ACPIPMTimer *tmr, acpi_update_sci_fn update_sci)
{
- ACPI_TABLE_HEADER_DEF
-};
+ tmr->update_sci = update_sci;
+ tmr->timer = qemu_new_timer_ns(vm_clock, acpi_pm_tmr_timer, tmr);
+}
-struct rsdp_descriptor /* Root System Descriptor Pointer */
+void acpi_pm_tmr_reset(ACPIPMTimer *tmr)
{
- uint8_t signature [8]; /* ACPI signature, contains "RSD PTR " */
- uint8_t checksum; /* To make sum of struct == 0 */
- uint8_t oem_id [6]; /* OEM identification */
- uint8_t revision; /* Must be 0 for 1.0, 2 for 2.0 */
- uint32_t rsdt_physical_address; /* 32-bit physical address of RSDT */
- uint32_t length; /* XSDT Length in bytes including hdr */
- uint64_t xsdt_physical_address; /* 64-bit physical address of XSDT */
- uint8_t extended_checksum; /* Checksum of entire table */
- uint8_t reserved [3]; /* Reserved field must be 0 */
-};
+ tmr->overflow_time = 0;
+ qemu_del_timer(tmr->timer);
+}
-/*
- * ACPI 1.0 Root System Description Table (RSDT)
- */
-struct rsdt_descriptor_rev1
+/* ACPI PM1aCNT */
+void acpi_pm1_cnt_init(ACPIPM1CNT *pm1_cnt, qemu_irq cmos_s3)
{
- ACPI_TABLE_HEADER_DEF /* ACPI common table header */
- uint32_t table_offset_entry [2]; /* Array of pointers to other */
- /* ACPI tables */
-};
+ pm1_cnt->cmos_s3 = cmos_s3;
+}
-/*
- * ACPI 1.0 Firmware ACPI Control Structure (FACS)
- */
-struct facs_descriptor_rev1
+void acpi_pm1_cnt_write(ACPIPM1EVT *pm1a, ACPIPM1CNT *pm1_cnt, uint16_t val)
{
- uint8_t signature[4]; /* ACPI Signature */
- uint32_t length; /* Length of structure, in bytes */
- uint32_t hardware_signature; /* Hardware configuration signature */
- uint32_t firmware_waking_vector; /* ACPI OS waking vector */
- uint32_t global_lock; /* Global Lock */
- uint32_t S4bios_f : 1; /* Indicates if S4BIOS support is present */
- uint32_t reserved1 : 31; /* Must be 0 */
- uint8_t resverved3 [40]; /* Reserved - must be zero */
-};
-
+ pm1_cnt->cnt = val & ~(ACPI_BITMASK_SLEEP_ENABLE);
+
+ if (val & ACPI_BITMASK_SLEEP_ENABLE) {
+ /* change suspend type */
+ uint16_t sus_typ = (val >> 10) & 7;
+ switch(sus_typ) {
+ case 0: /* soft power off */
+ qemu_system_shutdown_request();
+ break;
+ case 1:
+ /* ACPI_BITMASK_WAKE_STATUS should be set on resume.
+ Pretend that resume was caused by power button */
+ pm1a->sts |=
+ (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_POWER_BUTTON_STATUS);
+ qemu_system_reset_request();
+ qemu_irq_raise(pm1_cnt->cmos_s3);
+ default:
+ break;
+ }
+ }
+}
-/*
- * ACPI 1.0 Fixed ACPI Description Table (FADT)
- */
-struct fadt_descriptor_rev1
+void acpi_pm1_cnt_update(ACPIPM1CNT *pm1_cnt,
+ bool sci_enable, bool sci_disable)
{
- ACPI_TABLE_HEADER_DEF /* ACPI common table header */
- uint32_t firmware_ctrl; /* Physical address of FACS */
- uint32_t dsdt; /* Physical address of DSDT */
- uint8_t model; /* System Interrupt Model */
- uint8_t reserved1; /* Reserved */
- uint16_t sci_int; /* System vector of SCI interrupt */
- uint32_t smi_cmd; /* Port address of SMI command port */
- uint8_t acpi_enable; /* Value to write to smi_cmd to enable ACPI */
- uint8_t acpi_disable; /* Value to write to smi_cmd to disable ACPI */
- uint8_t S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */
- uint8_t reserved2; /* Reserved - must be zero */
- uint32_t pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */
- uint32_t pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */
- uint32_t pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */
- uint32_t pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */
- uint32_t pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */
- uint32_t pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */
- uint32_t gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */
- uint32_t gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */
- uint8_t pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */
- uint8_t pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */
- uint8_t pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */
- uint8_t pm_tmr_len; /* Byte Length of ports at pm_tm_blk */
- uint8_t gpe0_blk_len; /* Byte Length of ports at gpe0_blk */
- uint8_t gpe1_blk_len; /* Byte Length of ports at gpe1_blk */
- uint8_t gpe1_base; /* Offset in gpe model where gpe1 events start */
- uint8_t reserved3; /* Reserved */
- uint16_t plvl2_lat; /* Worst case HW latency to enter/exit C2 state */
- uint16_t plvl3_lat; /* Worst case HW latency to enter/exit C3 state */
- uint16_t flush_size; /* Size of area read to flush caches */
- uint16_t flush_stride; /* Stride used in flushing caches */
- uint8_t duty_offset; /* Bit location of duty cycle field in p_cnt reg */
- uint8_t duty_width; /* Bit width of duty cycle field in p_cnt reg */
- uint8_t day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */
- uint8_t mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */
- uint8_t century; /* Index to century in RTC CMOS RAM */
- uint8_t reserved4; /* Reserved */
- uint8_t reserved4a; /* Reserved */
- uint8_t reserved4b; /* Reserved */
-#if 0
- uint32_t wb_invd : 1; /* The wbinvd instruction works properly */
- uint32_t wb_invd_flush : 1; /* The wbinvd flushes but does not invalidate */
- uint32_t proc_c1 : 1; /* All processors support C1 state */
- uint32_t plvl2_up : 1; /* C2 state works on MP system */
- uint32_t pwr_button : 1; /* Power button is handled as a generic feature */
- uint32_t sleep_button : 1; /* Sleep button is handled as a generic feature, or not present */
- uint32_t fixed_rTC : 1; /* RTC wakeup stat not in fixed register space */
- uint32_t rtcs4 : 1; /* RTC wakeup stat not possible from S4 */
- uint32_t tmr_val_ext : 1; /* The tmr_val width is 32 bits (0 = 24 bits) */
- uint32_t reserved5 : 23; /* Reserved - must be zero */
-#else
- uint32_t flags;
-#endif
-};
-
-/*
- * MADT values and structures
- */
-
-/* Values for MADT PCATCompat */
-
-#define DUAL_PIC 0
-#define MULTIPLE_APIC 1
-
-
-/* Master MADT */
+ /* ACPI specs 3.0, 4.7.2.5 */
+ if (sci_enable) {
+ pm1_cnt->cnt |= ACPI_BITMASK_SCI_ENABLE;
+ } else if (sci_disable) {
+ pm1_cnt->cnt &= ~ACPI_BITMASK_SCI_ENABLE;
+ }
+}
-struct multiple_apic_table
+void acpi_pm1_cnt_reset(ACPIPM1CNT *pm1_cnt)
{
- ACPI_TABLE_HEADER_DEF /* ACPI common table header */
- uint32_t local_apic_address; /* Physical address of local APIC */
-#if 0
- uint32_t PCATcompat : 1; /* A one indicates system also has dual 8259s */
- uint32_t reserved1 : 31;
-#else
- uint32_t flags;
-#endif
-};
-
-
-/* Values for Type in APIC_HEADER_DEF */
-
-#define APIC_PROCESSOR 0
-#define APIC_IO 1
-#define APIC_XRUPT_OVERRIDE 2
-#define APIC_NMI 3
-#define APIC_LOCAL_NMI 4
-#define APIC_ADDRESS_OVERRIDE 5
-#define APIC_IO_SAPIC 6
-#define APIC_LOCAL_SAPIC 7
-#define APIC_XRUPT_SOURCE 8
-#define APIC_RESERVED 9 /* 9 and greater are reserved */
+ pm1_cnt->cnt = 0;
+ if (pm1_cnt->cmos_s3) {
+ qemu_irq_lower(pm1_cnt->cmos_s3);
+ }
+}
-/*
- * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE)
- */
-#define APIC_HEADER_DEF /* Common APIC sub-structure header */\
- uint8_t type; \
- uint8_t length;
+/* ACPI GPE */
+void acpi_gpe_init(ACPIGPE *gpe, uint8_t len)
+{
+ gpe->len = len;
+ gpe->sts = qemu_mallocz(len / 2);
+ gpe->en = qemu_mallocz(len / 2);
+}
-/* Sub-structures for MADT */
+void acpi_gpe_blk(ACPIGPE *gpe, uint32_t blk)
+{
+ gpe->blk = blk;
+}
-struct madt_processor_apic
+void acpi_gpe_reset(ACPIGPE *gpe)
{
- APIC_HEADER_DEF
- uint8_t processor_id; /* ACPI processor id */
- uint8_t local_apic_id; /* Processor's local APIC id */
-#if 0
- uint32_t processor_enabled: 1; /* Processor is usable if set */
- uint32_t reserved2 : 31; /* Reserved, must be zero */
-#else
- uint32_t flags;
-#endif
-};
-
-struct madt_io_apic
+ memset(gpe->sts, 0, gpe->len / 2);
+ memset(gpe->en, 0, gpe->len / 2);
+}
+
+static uint8_t *acpi_gpe_ioport_get_ptr(ACPIGPE *gpe, uint32_t addr)
{
- APIC_HEADER_DEF
- uint8_t io_apic_id; /* I/O APIC ID */
- uint8_t reserved; /* Reserved - must be zero */
- uint32_t address; /* APIC physical address */
- uint32_t interrupt; /* Global system interrupt where INTI
- * lines start */
-};
+ uint8_t *cur = NULL;
-#include "acpi-dsdt.hex"
+ if (addr < gpe->len / 2) {
+ cur = gpe->sts + addr;
+ } else if (addr < gpe->len) {
+ cur = gpe->en + addr - gpe->len / 2;
+ } else {
+ abort();
+ }
-static int acpi_checksum(const uint8_t *data, int len)
-{
- int sum, i;
- sum = 0;
- for(i = 0; i < len; i++)
- sum += data[i];
- return (-sum) & 0xff;
+ return cur;
}
-static void acpi_build_table_header(struct acpi_table_header *h,
- char *sig, int len)
+void acpi_gpe_ioport_writeb(ACPIGPE *gpe, uint32_t addr, uint32_t val)
{
- memcpy(h->signature, sig, 4);
- h->length = cpu_to_le32(len);
- h->revision = 0;
- memcpy(h->oem_id, "QEMU ", 6);
- memcpy(h->oem_table_id, "QEMU", 4);
- memcpy(h->oem_table_id + 4, sig, 4);
- h->oem_revision = cpu_to_le32(1);
- memcpy(h->asl_compiler_id, "QEMU", 4);
- h->asl_compiler_revision = cpu_to_le32(1);
- h->checksum = acpi_checksum((void *)h, len);
+ uint8_t *cur;
+
+ addr -= gpe->blk;
+ cur = acpi_gpe_ioport_get_ptr(gpe, addr);
+ if (addr < gpe->len / 2) {
+ /* GPE_STS */
+ *cur = (*cur) & ~val;
+ } else if (addr < gpe->len) {
+ /* GPE_EN */
+ *cur = val;
+ } else {
+ abort();
+ }
}
-#define ACPI_TABLES_BASE 0x000e8000
-
-/* base_addr must be a multiple of 4KB */
-void acpi_bios_init(void)
+uint32_t acpi_gpe_ioport_readb(ACPIGPE *gpe, uint32_t addr)
{
- struct rsdp_descriptor *rsdp;
- struct rsdt_descriptor_rev1 *rsdt;
- struct fadt_descriptor_rev1 *fadt;
- struct facs_descriptor_rev1 *facs;
- struct multiple_apic_table *madt;
- uint8_t *dsdt;
- uint32_t base_addr, rsdt_addr, fadt_addr, addr, facs_addr, dsdt_addr;
- uint32_t pm_io_base, acpi_tables_size, madt_addr, madt_size;
- int i;
-
- /* compute PCI I/O addresses */
- pm_io_base = (piix4_pm_state->dev.config[0x40] |
- (piix4_pm_state->dev.config[0x41] << 8)) & ~0x3f;
-
- base_addr = ACPI_TABLES_BASE;
-
- /* reserve memory space for tables */
- addr = base_addr;
- rsdp = (void *)(phys_ram_base + addr);
- addr += sizeof(*rsdp);
+ uint8_t *cur;
+ uint32_t val;
- rsdt_addr = addr;
- rsdt = (void *)(phys_ram_base + addr);
- addr += sizeof(*rsdt);
-
- fadt_addr = addr;
- fadt = (void *)(phys_ram_base + addr);
- addr += sizeof(*fadt);
-
- /* XXX: FACS should be in RAM */
- addr = (addr + 63) & ~63; /* 64 byte alignment for FACS */
- facs_addr = addr;
- facs = (void *)(phys_ram_base + addr);
- addr += sizeof(*facs);
-
- dsdt_addr = addr;
- dsdt = (void *)(phys_ram_base + addr);
- addr += sizeof(AmlCode);
-
- addr = (addr + 7) & ~7;
- madt_addr = addr;
- madt_size = sizeof(*madt) +
- sizeof(struct madt_processor_apic) * smp_cpus +
- sizeof(struct madt_io_apic);
- madt = (void *)(phys_ram_base + addr);
- addr += madt_size;
-
- acpi_tables_size = addr - base_addr;
-
- cpu_register_physical_memory(base_addr, acpi_tables_size,
- base_addr | IO_MEM_ROM);
-
- /* RSDP */
- memset(rsdp, 0, sizeof(*rsdp));
- memcpy(rsdp->signature, "RSD PTR ", 8);
- memcpy(rsdp->oem_id, "QEMU ", 6);
- rsdp->rsdt_physical_address = cpu_to_le32(rsdt_addr);
- rsdp->checksum = acpi_checksum((void *)rsdp, 20);
-
- /* RSDT */
- rsdt->table_offset_entry[0] = cpu_to_le32(fadt_addr);
- rsdt->table_offset_entry[1] = cpu_to_le32(madt_addr);
- acpi_build_table_header((struct acpi_table_header *)rsdt,
- "RSDT", sizeof(*rsdt));
-
- /* FADT */
- memset(fadt, 0, sizeof(*fadt));
- fadt->firmware_ctrl = cpu_to_le32(facs_addr);
- fadt->dsdt = cpu_to_le32(dsdt_addr);
- fadt->model = 1;
- fadt->reserved1 = 0;
- fadt->sci_int = cpu_to_le16(piix4_pm_state->dev.config[0x3c]);
- fadt->smi_cmd = cpu_to_le32(SMI_CMD_IO_ADDR);
- fadt->acpi_enable = 0xf1;
- fadt->acpi_disable = 0xf0;
- fadt->pm1a_evt_blk = cpu_to_le32(pm_io_base);
- fadt->pm1a_cnt_blk = cpu_to_le32(pm_io_base + 0x04);
- fadt->pm_tmr_blk = cpu_to_le32(pm_io_base + 0x08);
- fadt->pm1_evt_len = 4;
- fadt->pm1_cnt_len = 2;
- fadt->pm_tmr_len = 4;
- fadt->plvl2_lat = cpu_to_le16(50);
- fadt->plvl3_lat = cpu_to_le16(50);
- fadt->plvl3_lat = cpu_to_le16(50);
- /* WBINVD + PROC_C1 + PWR_BUTTON + SLP_BUTTON + FIX_RTC */
- fadt->flags = cpu_to_le32((1 << 0) | (1 << 2) | (1 << 4) | (1 << 5) | (1 << 6));
- acpi_build_table_header((struct acpi_table_header *)fadt, "FACP",
- sizeof(*fadt));
-
- /* FACS */
- memset(facs, 0, sizeof(*facs));
- memcpy(facs->signature, "FACS", 4);
- facs->length = cpu_to_le32(sizeof(*facs));
-
- /* DSDT */
- memcpy(dsdt, AmlCode, sizeof(AmlCode));
-
- /* MADT */
- {
- struct madt_processor_apic *apic;
- struct madt_io_apic *io_apic;
-
- memset(madt, 0, madt_size);
- madt->local_apic_address = cpu_to_le32(0xfee00000);
- madt->flags = cpu_to_le32(1);
- apic = (void *)(madt + 1);
- for(i=0;i<smp_cpus;i++) {
- apic->type = APIC_PROCESSOR;
- apic->length = sizeof(*apic);
- apic->processor_id = i;
- apic->local_apic_id = i;
- apic->flags = cpu_to_le32(1);
- apic++;
- }
- io_apic = (void *)apic;
- io_apic->type = APIC_IO;
- io_apic->length = sizeof(*io_apic);
- io_apic->io_apic_id = smp_cpus;
- io_apic->address = cpu_to_le32(0xfec00000);
- io_apic->interrupt = cpu_to_le32(0);
-
- acpi_build_table_header((struct acpi_table_header *)madt,
- "APIC", madt_size);
+ addr -= gpe->blk;
+ cur = acpi_gpe_ioport_get_ptr(gpe, addr);
+ val = 0;
+ if (cur != NULL) {
+ val = *cur;
}
+
+ return val;
}
projects / qemu.git / blobdiff