Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 23 Feb 2015 08:09:12 -0800 | Subject | Re: [PATCH] x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests |
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On Mon, Feb 23, 2015 at 8:01 AM, Boris Ostrovsky <boris.ostrovsky@oracle.com> wrote: > Commit 1e02ce4cccdc ("x86: Store a per-cpu shadow copy of CR4") > introduced CR4 shadows. > > These shadows are initialized in early boot code. The commit missed > initialization for 64-bit PV(H) guests that this patch adds.
Whoops, worry.
This is needed for 3.21, right?
--Andy
> > Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> > --- > arch/x86/xen/enlighten.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c > index bd8b845..7393f3e 100644 > --- a/arch/x86/xen/enlighten.c > +++ b/arch/x86/xen/enlighten.c > @@ -1741,6 +1741,7 @@ asmlinkage __visible void __init xen_start_kernel(void) > #ifdef CONFIG_X86_32 > i386_start_kernel(); > #else > + cr4_init_shadow(); /* 32b kernel does this in i386_start_kernel() */ > x86_64_start_reservations((char *)__pa_symbol(&boot_params)); > #endif > } > -- > 1.7.1 >
-- Andy Lutomirski AMA Capital Management, LLC
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