[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 1 of 6] Add an ACPI device exposing a package called ADDR, evaluating to two
# HG changeset patch # User Paul Durrant <paul.durrant@xxxxxxxxxx> # Date 1322563733 0 # Node ID ac68bd6d4853fdde5a24d78a7d0f1cee69f5416e # Parent a9c67c2daf4b0181ef2581471ea920eecb495616 Add an ACPI device exposing a package called ADDR, evaluating to two integers, and with _CID and _DDN set to "VM_Gen_Counter". Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx> diff -r a9c67c2daf4b -r ac68bd6d4853 tools/firmware/hvmloader/acpi/build.c --- a/tools/firmware/hvmloader/acpi/build.c Mon Nov 28 11:57:23 2011 +0000 +++ b/tools/firmware/hvmloader/acpi/build.c Tue Nov 29 10:48:53 2011 +0000 @@ -47,6 +47,7 @@ struct acpi_info { uint32_t pci_min, pci_len; /* 4, 8 - PCI I/O hole boundaries */ uint32_t madt_csum_addr; /* 12 - Address of MADT checksum */ uint32_t madt_lapic0_addr; /* 16 - Address of first MADT LAPIC struct */ + uint32_t vm_gid_addr; /* 20 - Address of VM generation id buffer */ }; /* Number of processor objects in the chosen DSDT. */ diff -r a9c67c2daf4b -r ac68bd6d4853 tools/firmware/hvmloader/acpi/dsdt.asl --- a/tools/firmware/hvmloader/acpi/dsdt.asl Mon Nov 28 11:57:23 2011 +0000 +++ b/tools/firmware/hvmloader/acpi/dsdt.asl Tue Nov 29 10:48:53 2011 +0000 @@ -55,7 +55,8 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, PMIN, 32, PLEN, 32, MSUA, 32, /* MADT checksum address */ - MAPA, 32 /* MADT LAPIC0 address */ + MAPA, 32, /* MADT LAPIC0 address */ + VGIA, 32 /* VM generation id address */ } /* Fix HCT test for 0x400 pci memory: @@ -396,6 +397,31 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, IRQNoFlags () {7} }) } + + Device(VGID) { + Name(_HID, "ACPI0001") + Name(_UID, 0x00) + Name(_CID, "VM_Gen_Counter") + Name(_DDN, "VM_Gen_Counter") + Method(_STA, 0, NotSerialized) + { + If(LEqual(\_SB.VGIA, 0x00000000)) { + Return(0x00) + } Else { + Return(0x0F) + } + } + Name(PKG, Package () + { + 0x00000000, + 0x00000000 + }) + Method(ADDR, 0, NotSerialized) + { + Store(\_SB.VGIA, Index(PKG, 0)) + Return(PKG) + } + } } } } _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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