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Re: [Xen-devel] [PATCH]ACPI: workaround for S3 fail in two facs tables
| To: | Jan Beulich <JBeulich@xxxxxxxxxx>, Gang Wei <gang.wei@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH]ACPI: workaround for S3 fail in two facs tables case |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Thu, 25 Feb 2010 13:24:58 +0000 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Thu, 25 Feb 2010 05:25:59 -0800 |
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| Thread-topic: | [Xen-devel] [PATCH]ACPI: workaround for S3 fail in two facs tables case |
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On 25/02/2010 13:17, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote:
> /*
> * Check for FACS and DSDT address mismatches. An address mismatch between
> * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and
> * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables.
> */
> if (acpi_gbl_FADT.facs &&
> (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
> ACPI_WARNING((AE_INFO,
> "32/64X FACS address mismatch in FADT - "
> "%8.8X/%8.8X%8.8X, using 32",
> acpi_gbl_FADT.facs,
> ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));
>
> acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
> }
Okay, well I guess that is basically what Gang Wei's patch implements,
although we don't print a warning and perhaps we should.
-- Keir
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