[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 1/3] x86/xen: Avoid fast syscall path for Xen PV guests
On 11/18/2015 03:58 PM, Andy Lutomirski wrote: On Wed, Nov 18, 2015 at 12:50 PM, Brian Gerst <brgerst@xxxxxxxxx> wrote:Can you just add !xen_pv_domain() to the opportunistic SYSRET check instead? Bury the alternatives in that macro, ie. static_cpu_has(X86_FEATURE_XENPV). That would likely benefit other code as well.We could, but that won't help the 64-bit case where we want to keep the full asm path. I don't think I understand what you mean here. Which full asm path? -boris _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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