Patrick Rudolph has submitted this change. ( https://review.coreboot.org/c/coreboot/+/39307 )
Change subject: Revert "acpi: Bump FADT to revision 6" ......................................................................
Revert "acpi: Bump FADT to revision 6"
This reverts commit c8b0f31ca1b6cae993736d47d919080b6c186c6f.
Bumping the FADT table version from 3 to 6 causes Windows 10 to BSOD with an ACPI BIOS error or simply fail to boot on multiple platforms (Haswell, Broadwell, Braswell, Skylake). Revert until the issue can be properly identified and corrected.
Change-Id: I261d953321df2616a3f1c3460a535b57a8848315 Signed-off-by: Matt DeVillier matt.devillier@gmail.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/39307 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Patrick Rudolph siro@das-labor.org Reviewed-by: Angel Pons th3fanbus@gmail.com --- M src/arch/x86/acpi.c M src/arch/x86/include/arch/acpi.h 2 files changed, 3 insertions(+), 8 deletions(-)
Approvals: build bot (Jenkins): Verified Patrick Rudolph: Looks good to me, approved Angel Pons: Looks good to me, approved
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c index b9e896f..6dab373 100644 --- a/src/arch/x86/acpi.c +++ b/src/arch/x86/acpi.c @@ -1563,7 +1563,7 @@ { switch (table) { case FADT: - return ACPI_FADT_REV_ACPI_6_0; + return ACPI_FADT_REV_ACPI_3_0; case MADT: /* ACPI 3.0: 2, ACPI 4.0/5.0: 3, ACPI 6.2b/6.3: 5 */ return 2; case MCFG: diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h index 67f4be2..68475c1 100644 --- a/src/arch/x86/include/arch/acpi.h +++ b/src/arch/x86/include/arch/acpi.h @@ -529,8 +529,8 @@ u32 flags; acpi_addr_t reset_reg; u8 reset_value; - u16 ARM_boot_arch; /* Revision 6 only, Revision 5: Must be zero */ - u8 FADT_MinorVersion; /* Revision 6 only, Revision 5: Must be zero */ + u16 ARM_boot_arch; + u8 FADT_MinorVersion; u32 x_firmware_ctl_l; u32 x_firmware_ctl_h; u32 x_dsdt_l; @@ -543,11 +543,6 @@ acpi_addr_t x_pm_tmr_blk; acpi_addr_t x_gpe0_blk; acpi_addr_t x_gpe1_blk; - /* Revision 5 */ - acpi_addr_t sleep_control_reg; - acpi_addr_t sleep_status_reg; - /* Revision 6 */ - u64 hypervisor_vendor_identity; } __packed acpi_fadt_t;
/* FADT TABLE Revision values */