ACPI / tables: Add IORT to injectable table list
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Web: https://git.kernel.org/torvalds/c/890674343bb2d546825f713542b1e199f0728732 Commit: 890674343bb2d546825f713542b1e199f0728732 Parent: 1a9a126b5098160ca934a352617e9e65dbfa679d Refname: refs/heads/master Author: Shunyong Yang <[email protected]> AuthorDate: Tue Feb 6 14:37:12 2018 +0800 Committer: Rafael J. Wysocki <[email protected]> CommitDate: Wed Feb 7 11:06:48 2018 +0100 ACPI / tables: Add IORT to injectable table list Loading IORT table from initrd can be used to fix severe firmware IORT defects temporarily before platform/BIOS vendor releases an upgraded BIOS binary. Moreover, it is very powerful to debug SMMU node/device probe, MSI allocation, stream id translation and IORT table from firmware. It is also very useful to enable SMMU and devices behind SMMU before firmware is ready. This patch adds ACPI_SIG_IORT to the table, which enables IORT from initrd to override which from firmware. Signed-off-by: Yang Shunyong <[email protected]> Acked-by: Hanjun Guo <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> --- drivers/acpi/tables.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 80ce2a7d224b..7bcb66ccccf3 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -456,7 +456,8 @@ static const char * const table_sigs[] = { ACPI_SIG_SLIC, ACPI_SIG_SPCR, ACPI_SIG_SPMI, ACPI_SIG_TCPA, ACPI_SIG_UEFI, ACPI_SIG_WAET, ACPI_SIG_WDAT, ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_PSDT, - ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, NULL }; + ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, ACPI_SIG_IORT, + NULL }; #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header) -- To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html