Messages in this thread |  | | Subject | Re: [patch 2/4] x86/kaiser: Enable PARAVIRT again | From | Juergen Gross <> | Date | Tue, 28 Nov 2017 07:47:25 +0100 |
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On 27/11/17 21:34, Thomas Gleixner wrote: > XEN_PV paravirtualizes read/write_c3. This does not work with KAISER as the > CR3 switch from and to user space PGD would require to map the whole XEN_PV > machinery into both. It's also not clear whether the register space is > sufficient to do so. All other PV guests use the native implementations and > are compatible with KAISER. > > Add detection for XEN_PV and disable KAISER in the early boot process when > the kernel is running as a XEN_PV guest. > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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