On Thu, Aug 19, 2021 at 10:56 AM Zhang Rui <rui.zhang@xxxxxxxxx> wrote: > > On Wed, 2021-08-18 at 14:38 +0800, Adrian Huang wrote: > > From: Adrian Huang <ahuang12@xxxxxxxxxx> > > > > Table 5.90 "Runtime Performance Record Types" in ACPI 6.4 spec [1] > > says: > > > > These type values "0x0003-0xFFFF" of Runtime Performance Record > > Types > > are reserved for ACPI spec usage, platform vendor usage, hardware > > vendor usage, platform firmware vendor usage and future use. > > > > Users might be confused with the FW_BUG message, and they think this > > is the FW issue. Here is the example in a Lenovo box: > > > > ACPI: FPDT 0x00000000A820A000 000044 (v01 LENOVO THINKSYS 00000100 > > 01000013) > > ACPI: Reserving FPDT table memory at [mem 0xa820a000-0xa820a043] > > ACPI FPDT: [Firmware Bug]: Invalid record 4113 found > > > > So, remove the FW_BUG message to avoid confusion since those subtable > > types are reserved in ACPI 6.4 spec. > > > > [1] > > https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#firmware-performance-data-table-fpdt > > > > In > https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#fpdt-performance-record-types > it also mentions that "0x0002-0xFFFF" of FPDT Performance Record Types > are reserved, so it's better to fix them all in one patch? Ah, I missed that. Will send the v2 patch later. -- Adrian
