Pull bugzilla-8346 into release branch
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commit
aac60c1113
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@ -347,6 +347,18 @@ static void acpi_tb_convert_fadt(void)
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acpi_gbl_xpm1b_enable.space_id = acpi_gbl_FADT.xpm1a_event_block.space_id;
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}
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/*
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* For ACPI 1.0 FADTs, ensure that reserved fields (which should be zero)
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* are indeed zero. This will workaround BIOSs that inadvertently placed
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* values in these fields.
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*/
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if (acpi_gbl_FADT.header.revision < 3) {
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acpi_gbl_FADT.preferred_profile = 0;
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acpi_gbl_FADT.pstate_control = 0;
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acpi_gbl_FADT.cst_control = 0;
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acpi_gbl_FADT.boot_flags = 0;
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}
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}
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/******************************************************************************
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