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Re: [Xen-devel] [PATCH v2 3/3] paravirt: rename paravirt_enabled to paravirt_legacy

On 02/08/2016 11:35 AM, Borislav Petkov wrote:
On Mon, Feb 08, 2016 at 11:31:04AM -0500, Boris Ostrovsky wrote:
I think we are OK for PV because this code will be executed after pvops are
set and so we will be calling xen_cpuid().
Not for the early loader - it is too early for pvops then. So you're
saying something like that won't work?

Keep in mind that Xen PV doesn't go through startup_32|64(). It starts at xen_start_kernel (save for a small stub before that), which sets pvops. It "joins" regular/baremetal code in i386_start_kernel/x86_64_start_reservation().


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