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 <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: Stefano Stabellini <[email protected]>
Cc: [email protected]
Fixes: 22fe5b0439dd ("x86/ioperm: Move TSS bitmap update to exit to user work")
Reviewed-by: Juergen Gross <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Andy Lutomirski <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Juergen
