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Re: [Xen-devel] Re: Xen 3.2 and Big Real Mode support?
| To: | Guillaume Thouvenin <guillaume.thouvenin@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: Xen 3.2 and Big Real Mode support? |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Thu, 31 Jan 2008 10:36:31 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 31 Jan 2008 02:42:01 -0800 |
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| Thread-index: | Achj9SR3YydVes/oEdycggAX8io7RQ== |
| Thread-topic: | [Xen-devel] Re: Xen 3.2 and Big Real Mode support? |
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On 31/1/08 10:18, "Guillaume Thouvenin" <guillaume.thouvenin@xxxxxxxxxxxx> wrote: > On Thu, 31 Jan 2008 09:53:51 +0000 > Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote: > >> On 31/1/08 09:48, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> wrote: >> >>> On 31/1/08 09:42, "Guillaume Thouvenin" <guillaume.thouvenin@xxxxxxxxxxxx> >>> wrote: > > Ok thanks for the hint. > > So I will mask bit 25 and 26 of edx (that indicate respectively SSE and > SEE2 features) and bit 0 of ecx (that indicates SSE3 feature). I will > see if it allows me to boot the installation CD. I reproduced the problem. CPUID is not executed before the crash. Also a disassembly of that area of memory does not look like sane 16-bit code. So I think something has gone wrong before we get to the (probably bogus) MOVHPS instruction. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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