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#ifndef KVM_ACPI_H
#define KVM_ACPI_H 1
#include "libcflat.h"
#define ACPI_SIGNATURE(c1, c2, c3, c4) \
((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24))
#define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P')
#define RSDT_SIGNATURE ACPI_SIGNATURE('R','S','D','T')
#define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P')
#define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S')
struct rsdp_descriptor { /* Root System Descriptor Pointer */
u64 signature; /* ACPI signature, contains "RSD PTR " */
u8 checksum; /* To make sum of struct == 0 */
u8 oem_id [6]; /* OEM identification */
u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */
u32 rsdt_physical_address; /* 32-bit physical address of RSDT */
u32 length; /* XSDT Length in bytes including hdr */
u64 xsdt_physical_address; /* 64-bit physical address of XSDT */
u8 extended_checksum; /* Checksum of entire table */
u8 reserved [3]; /* Reserved field must be 0 */
};
#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \
u32 signature; /* ACPI signature (4 ASCII characters) */ \
u32 length; /* Length of table, in bytes, including header */ \
u8 revision; /* ACPI Specification minor version # */ \
u8 checksum; /* To make sum of entire table == 0 */ \
u8 oem_id [6]; /* OEM identification */ \
u8 oem_table_id [8]; /* OEM table identification */ \
u32 oem_revision; /* OEM revision number */ \
u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \
u32 asl_compiler_revision; /* ASL compiler revision number */
struct acpi_table {
ACPI_TABLE_HEADER_DEF
char data[0];
};
struct rsdt_descriptor_rev1 {
ACPI_TABLE_HEADER_DEF
u32 table_offset_entry[0];
};
struct fadt_descriptor_rev1
{
ACPI_TABLE_HEADER_DEF /* ACPI common table header */
u32 firmware_ctrl; /* Physical address of FACS */
u32 dsdt; /* Physical address of DSDT */
u8 model; /* System Interrupt Model */
u8 reserved1; /* Reserved */
u16 sci_int; /* System vector of SCI interrupt */
u32 smi_cmd; /* Port address of SMI command port */
u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */
u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */
u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */
u8 reserved2; /* Reserved - must be zero */
u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */
u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */
u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */
u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */
u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */
u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */
u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */
u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */
u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */
u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */
u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */
u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */
u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */
u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */
u8 gpe1_base; /* Offset in gpe model where gpe1 events start */
u8 reserved3; /* Reserved */
u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */
u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */
u16 flush_size; /* Size of area read to flush caches */
u16 flush_stride; /* Stride used in flushing caches */
u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */
u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */
u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */
u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */
u8 century; /* Index to century in RTC CMOS RAM */
u8 reserved4; /* Reserved */
u8 reserved4a; /* Reserved */
u8 reserved4b; /* Reserved */
};
struct facs_descriptor_rev1
{
u32 signature; /* ACPI Signature */
u32 length; /* Length of structure, in bytes */
u32 hardware_signature; /* Hardware configuration signature */
u32 firmware_waking_vector; /* ACPI OS waking vector */
u32 global_lock; /* Global Lock */
u32 S4bios_f : 1; /* Indicates if S4BIOS support is present */
u32 reserved1 : 31; /* Must be 0 */
u8 reserved3 [40]; /* Reserved - must be zero */
};
void* find_acpi_table_addr(u32 sig);
#endif
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