diff options
| author | Andy Lutomirski <[email protected]> | 2020-07-17 16:53:55 -0700 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2020-07-18 12:31:49 +0200 |
| commit | cadfad870154e14f745ec845708bc17d166065f2 (patch) | |
| tree | 879e0402ec50885291708e574e56830130f424fb /arch/powerpc/lib/code-patching.c | |
| parent | 81e96851ea32deb2c921c870eecabf335f598aeb (diff) | |
x86/ioperm: Fix io bitmap invalidation on Xen PV
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.
Fixes: 22fe5b0439dd ("x86/ioperm: Move TSS bitmap update to exit to user work")
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/d53075590e1f91c19f8af705059d3ff99424c020.1595030016.git.luto@kernel.org
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions