Messages in this thread | | | Date | Tue, 22 Mar 2016 18:02:06 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v2 5/6] x86/xen,pat: Remove PAT table init code from Xen |
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On Wed, Mar 16, 2016 at 06:46:58PM -0600, Toshi Kani wrote: > Xen supports PAT without MTRR for its guests. In order to > enable WC attribute, it was necessary for xen_start_kernel() > to call pat_init_cache_modes() to update PAT table before > starting guest kernel. > > Now that the kernel initializes PAT table to the BIOS handoff > state when MTRR is disabled, this Xen-specific PAT init code > is no longer necessary. Delete it from xen_start_kernel(). > > Also change pat_init_cache_modes() to a static function since > PAT table should not be tweaked by other modules. > > Signed-off-by: Toshi Kani <toshi.kani@hpe.com> > Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> > Cc: Borislav Petkov <bp@suse.de> > Cc: Luis R. Rodriguez <mcgrof@suse.com> > Cc: Juergen Gross <jgross@suse.com> > Cc: Ingo Molnar <mingo@kernel.org> > Cc: H. Peter Anvin <hpa@zytor.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > --- > arch/x86/include/asm/pat.h | 1 - > arch/x86/mm/pat.c | 2 +- > arch/x86/xen/enlighten.c | 9 --------- > 3 files changed, 1 insertion(+), 11 deletions(-)
Jürgen, ack?
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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