[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2 05/14] x86/cpuid: Handle leaf 0x80000001 in guest_cpuid()
>>> On 23.01.17 at 15:39, <andrew.cooper3@xxxxxxxxxx> wrote: > Intel reserve eax and ebx, while AMD duplicates eax from the low > family/model/stepping leaf. For AMD, ebx contains further brand/package > information which is left as the toolstack chooses (other than bits 27:16 > which are reserved). > > While moving the dynamic adjustments from the legacy path, simplify the shadow > PSE36 adjustment. PAE paging is a prerequisite for enabling long mode, making > the long mode check redundant; the case where it doesn't get short circuited > is the case where it is architecturally 0. Make the same adjustment to the > leaf 1 legacy path. > > Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx> _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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