diff options
| author | Boris Ostrovsky <[email protected]> | 2020-07-10 15:34:17 -0700 |
|---|---|---|
| committer | Juergen Gross <[email protected]> | 2020-08-04 07:42:09 +0200 |
| commit | 8b1e868f66076490189a36d984fcce286cdd6295 (patch) | |
| tree | 29a3dcc2300c1716541cbda504a4052ee4c37eee /lib/test_overflow.c | |
| parent | f5ec6723269d9652ce42927cc03485061d663b23 (diff) | |
swiotlb-xen: use vmalloc_to_page on vmalloc virt addresses
xen_alloc_coherent_pages might return pages for which virt_to_phys and
virt_to_page don't work, e.g. ioremap'ed pages.
So in xen_swiotlb_free_coherent we can't assume that virt_to_page works.
Instead add a is_vmalloc_addr check and use vmalloc_to_page on vmalloc
virt addresses.
This patch fixes the following crash at boot on RPi4 (the underlying
issue is not RPi4 specific):
https://marc.info/?l=xen-devel&m=158862573216800
Signed-off-by: Boris Ostrovsky <[email protected]>
Signed-off-by: Stefano Stabellini <[email protected]>
Reviewed-by: Boris Ostrovsky <[email protected]>
Tested-by: Corey Minyard <[email protected]>
Tested-by: Roman Shaposhnik <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions