[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC PATCH 1/3] x86/setup: Don't skip 2MiB underneath relocated Xen image
> -----Original Message----- > From: Xen-devel <xen-devel-bounces@xxxxxxxxxxxxxxxxxxxx> On Behalf Of > David Woodhouse > Sent: 08 January 2020 17:25 > To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx> > Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>; Julien Grall > <julien@xxxxxxx>; Wei Liu <wl@xxxxxxx>; Konrad Rzeszutek Wilk > <konrad.wilk@xxxxxxxxxx>; George Dunlap <George.Dunlap@xxxxxxxxxxxxx>; > Andrew Cooper <andrew.cooper3@xxxxxxxxxx>; paul@xxxxxxx; Ian Jackson > <ian.jackson@xxxxxxxxxxxxx>; Jan Beulich <jbeulich@xxxxxxxx>; Roger Pau > Monné <roger.pau@xxxxxxxxxx> > Subject: [Xen-devel] [RFC PATCH 1/3] x86/setup: Don't skip 2MiB underneath > relocated Xen image > > From: David Woodhouse <dwmw@xxxxxxxxxxxx> > > Set 'e' correctly to reflect the location that Xen is actually relocated > to from its default 2MiB location. Not 2MiB below that. > > Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx> > --- > xen/arch/x86/setup.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c > index 501f3f5e4b..47e065e5fe 100644 > --- a/xen/arch/x86/setup.c > +++ b/xen/arch/x86/setup.c > @@ -1077,9 +1077,9 @@ void __init noreturn __start_xen(unsigned long > mbi_p) > unsigned long pte_update_limit; > > /* Select relocation address. */ > - e = end - reloc_size; > - xen_phys_start = e; > - bootsym(trampoline_xen_phys_start) = e; > + xen_phys_start = end - reloc_size; > + e = xen_phys_start + XEN_IMG_OFFSET; > + bootsym(trampoline_xen_phys_start) = xen_phys_start; > > /* > * No PTEs pointing above this address are candidates for > relocation. Do you not also need to adjust the setting of pte_update_limit that's just out of context below here? Paul _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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