Messages in this thread | | | Subject | Re: [PATCH v3] x86/ioperm: Fix io bitmap invalidation on Xen PV | From | Jürgen Groß <> | Date | Sat, 18 Jul 2020 06:40:33 +0200 |
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On 18.07.20 01:53, Andy Lutomirski wrote: > tss_invalidate_io_bitmap() wasn't wired up properly through the pvop > machinery, so the TSS and Xen's io bitmap would get out of sync > whenever disabling a valid io bitmap. > > Add a new pvop for tss_invalidate_io_bitmap() to fix it. > > This is XSA-329. > > Cc: Juergen Gross <jgross@suse.com> > Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> > Cc: Stefano Stabellini <sstabellini@kernel.org> > Cc: stable@vger.kernel.org > Fixes: 22fe5b0439dd ("x86/ioperm: Move TSS bitmap update to exit to user work") > Reviewed-by: Juergen Gross <jgross@suse.com> > Reviewed-by: Thomas Gleixner <tglx@linutronix.de> > Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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