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hw/i386: Use Rev3 FADT (ACPI 2.0) instead of Rev1 to improve guest OS support.

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This updates the FADT generated for x86/64 machine types from Revision 1 to 3. (Based on ACPI standard 2.0 instead of 1.0) The intention is to expose the reset register information to guest operating systems which require it, specifically OS X/macOS. Revision 1 FADTs do not contain the fields relating to the reset register.

The new layout and contents remains backwards-compatible with operating systems which only support ACPI 1.0, as the existing fields are not modified by this change, as the 64-bit and 32-bit variants are allowed to co-exist according to the ACPI 2.0 standard. No regressions became apparent in tests with a range of Windows (XP-10) and Linux versions.

The BIOS tables test suite's FADT checksum test has also been updated to reflect the new FADT layout and content.

Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Message-Id: <1489558827-28971-2-git-send-email-phil@philjordan.eu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Phil Dennis-Jordan 2017-03-15 19:20:26 +13:00 • committed by Paolo Bonzini
parent e619b14746
commit 77af8a2b95
4 changed files with 93 additions and 49 deletions
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77
include/hw/acpi/acpi-defs.h
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@ -131,17 +131,37 @@ typedef struct AcpiTableHeader AcpiTableHeader;
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 */
struct AcpiFadtDescriptorRev1
{
ACPI_FADT_COMMON_DEF
uint8_t reserved4; /* Reserved */
uint8_t reserved4a; /* Reserved */
uint8_t reserved4b; /* Reserved */
uint32_t flags;
} QEMU_PACKED;
typedef struct AcpiFadtDescriptorRev1 AcpiFadtDescriptorRev1;
uint8_t century; /* Index to century in RTC CMOS RAM */ \
/* IA-PC Boot Architecture Flags (see below for individual flags) */ \
uint16_t boot_flags; \
uint8_t reserved; /* Reserved, must be zero */ \
/* Miscellaneous flag bits (see below for individual flags) */ \
uint32_t flags; \
/* 64-bit address of the Reset register */ \
struct AcpiGenericAddress reset_register; \
/* Value to write to the reset_register port to reset the system */ \
uint8_t reset_value; \
/* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */ \
uint16_t arm_boot_flags; \
uint8_t minor_revision; /* FADT Minor Revision (ACPI 5.1) */ \
uint64_t Xfacs; /* 64-bit physical address of FACS */ \
uint64_t Xdsdt; /* 64-bit physical address of DSDT */ \
/* 64-bit Extended Power Mgt 1a Event Reg Blk address */ \
struct AcpiGenericAddress xpm1a_event_block; \
/* 64-bit Extended Power Mgt 1b Event Reg Blk address */ \
struct AcpiGenericAddress xpm1b_event_block; \
/* 64-bit Extended Power Mgt 1a Control Reg Blk address */ \
struct AcpiGenericAddress xpm1a_control_block; \
/* 64-bit Extended Power Mgt 1b Control Reg Blk address */ \
struct AcpiGenericAddress xpm1b_control_block; \
/* 64-bit Extended Power Mgt 2 Control Reg Blk address */ \
struct AcpiGenericAddress xpm2_control_block; \
/* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */ \
struct AcpiGenericAddress xpm_timer_block; \
/* 64-bit Extended General Purpose Event 0 Reg Blk address */ \
struct AcpiGenericAddress xgpe0_block; \
/* 64-bit Extended General Purpose Event 1 Reg Blk address */ \
struct AcpiGenericAddress xgpe1_block; \
struct AcpiGenericAddress {
uint8_t space_id; /* Address space where struct or register exists */
@ -151,38 +171,13 @@ struct AcpiGenericAddress {
uint64_t address; /* 64-bit address of struct or register */
} QEMU_PACKED;
struct AcpiFadtDescriptorRev3 {
ACPI_FADT_COMMON_DEF
} QEMU_PACKED;
typedef struct AcpiFadtDescriptorRev3 AcpiFadtDescriptorRev3;
struct AcpiFadtDescriptorRev5_1 {
ACPI_FADT_COMMON_DEF
/* IA-PC Boot Architecture Flags (see below for individual flags) */
uint16_t boot_flags;
uint8_t reserved; /* Reserved, must be zero */
/* Miscellaneous flag bits (see below for individual flags) */
uint32_t flags;
/* 64-bit address of the Reset register */
struct AcpiGenericAddress reset_register;
/* Value to write to the reset_register port to reset the system */
uint8_t reset_value;
/* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */
uint16_t arm_boot_flags;
uint8_t minor_revision; /* FADT Minor Revision (ACPI 5.1) */
uint64_t Xfacs; /* 64-bit physical address of FACS */
uint64_t Xdsdt; /* 64-bit physical address of DSDT */
/* 64-bit Extended Power Mgt 1a Event Reg Blk address */
struct AcpiGenericAddress xpm1a_event_block;
/* 64-bit Extended Power Mgt 1b Event Reg Blk address */
struct AcpiGenericAddress xpm1b_event_block;
/* 64-bit Extended Power Mgt 1a Control Reg Blk address */
struct AcpiGenericAddress xpm1a_control_block;
/* 64-bit Extended Power Mgt 1b Control Reg Blk address */
struct AcpiGenericAddress xpm1b_control_block;
/* 64-bit Extended Power Mgt 2 Control Reg Blk address */
struct AcpiGenericAddress xpm2_control_block;
/* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
struct AcpiGenericAddress xpm_timer_block;
/* 64-bit Extended General Purpose Event 0 Reg Blk address */
struct AcpiGenericAddress xgpe0_block;
/* 64-bit Extended General Purpose Event 1 Reg Blk address */
struct AcpiGenericAddress xgpe1_block;
/* 64-bit Sleep Control register (ACPI 5.0) */
struct AcpiGenericAddress sleep_control;
/* 64-bit Sleep Status register (ACPI 5.0) */