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[Xen-devel] [PATCH] [HVMLOADER] Dynamically add probed devices to the AC
| To: | Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] [HVMLOADER] Dynamically add probed devices to the ACPI's XSDT and RSDT using SSDT entries |
| From: | Stefan Berger <stefanb@xxxxxxxxxx> |
| Date: | Mon, 30 Oct 2006 14:06:37 -0500 |
| Delivery-date: | Thu, 02 Nov 2006 13:39:47 -0800 |
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The attached patch enables the hvmloader to dynamically add probed for devices to the ACPI's XSDT and RSDT tables using SSDT entries. I have implemented the probing for the TPM TIS interface. First the static ACPI table is copied into the 0xe000 segment and then devices may be probed and their SSDT ACPI entries may be copied behind the static ACPI tables considering the barrier at 0xf 0000 where the BIOS lives. The SSDT entries are linked to the XSDT and RSDT tables which for now has 3 empty slots. The XSDT table is then updated and checksummed again. I rearranged those ACPI functions that are commonly used to be in acpi_utils.c. Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>
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