Refresh checksum after changing DSDT table.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Heyi Guo heyi.guo@linaro.org Signed-off-by: Yi Li phoenix.liyi@huawei.com Signed-off-by: Chenhui Sun chenhui.sun@linaro.org --- Chips/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/Chips/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c b/Chips/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c index 41f5692..e22015a 100644 --- a/Chips/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c +++ b/Chips/Hisilicon/Drivers/AcpiPlatformDxe/EthMac.c @@ -442,6 +442,27 @@ static EFI_STATUS ProcessDSDT( return EFI_SUCCESS; }
+VOID +AcpiChecksum ( + IN OUT UINT8 *Buffer, + IN UINTN Size + ) +{ + UINTN ChecksumOffset; + + ChecksumOffset = OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER, Checksum); + + // + // set checksum to 0 first + // + Buffer[ChecksumOffset] = 0; + + // + // Update checksum value + // + Buffer[ChecksumOffset] = CalculateCheckSum8(Buffer, Size); +} + EFI_STATUS EthMacInit(void) { EFI_STATUS Status; @@ -478,6 +499,7 @@ EFI_STATUS EthMacInit(void) ProcessDSDT(AcpiTableProtocol, TableHandle);
AcpiTableProtocol->Close(TableHandle); + AcpiChecksum ((UINT8*)Table, Table->Length); }
return EFI_SUCCESS;