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RE: [Xen-devel] [PATCH][RESEND] add "acpi" option in xmexample.vmxconfig

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH][RESEND] add "acpi" option in xmexample.vmxconfig file
From: "Yu, Ke" <ke.yu@xxxxxxxxx>
Date: Sat, 31 Dec 2005 00:15:24 +0800
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Fri, 30 Dec 2005 16:20:29 +0000
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Thread-topic: [Xen-devel] [PATCH][RESEND] add "acpi" option in xmexample.vmxconfig file
Thanks for the good suggestion. Will send the updated patch later. 

>-----Original Message-----
>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx] 
>Sent: 2005年12月30日 18:33
>To: Yu, Ke
>Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
>Subject: Re: [Xen-devel] [PATCH][RESEND] add "acpi" option in 
>xmexample.vmxconfig file
>
>
>On 30 Dec 2005, at 01:52, Yu, Ke wrote:
>
>> Rebase the patch due to its conflict with new changeset 8445.
>> Would somebody apply it or give some comments? Thanks
>
>The info block written by vmx builder is no longer merely vcpu 
>information. Hence its name and the magic string at the start of the 
>block are badly named.
>
>I would like to see a more ACPI-styled table. At the moment, can you 
>please define a struct something like the following (where the 
>definition is available both to vmx builder and vmxassist -- I guess 
>the struct may need to be copied in two different header files):
>
>struct hvm_info_table {
>     char signature[8]; /* "HVM INFO" */
>     u32 length;
>     u8 checksum;
>     u8 acpi_enabled;
>     u8 pad[2];
>     u32 nr_vcpus;
>};
>
>Where the checksum is a simple ACPI-style twos-complement byte 
>summation and test for zero.
>
>This has the advantages of a meaningful name and gets rid of magic 
>numbers (indexes into array of unsigned ints).
>
>  -- Keir
>

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