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| author | Juergen Gross <[email protected]> | 2017-07-28 10:23:14 +0000 |
|---|---|---|
| committer | Juergen Gross <[email protected]> | 2017-08-11 13:50:26 +0000 |
| commit | 4ca83dcf4e3bc0c98836dbb97553792ca7ea5429 (patch) | |
| tree | 58e2838e4e443252dbc6ef5a2837559b4c65f667 /fs/btrfs/dev-replace.c | |
| parent | xen: split up xen_hvm_init_shared_info() (diff) | |
| download | kernel-4ca83dcf4e3bc0c98836dbb97553792ca7ea5429.tar.gz kernel-4ca83dcf4e3bc0c98836dbb97553792ca7ea5429.zip | |
xen: fix hvm guest with kaslr enabled
A Xen HVM guest running with KASLR enabled will die rather soon today
because the shared info page mapping is using va() too early. This was
introduced by commit a5d5f328b0e2baa5ee7c119fd66324eb79eeeb66 ("xen:
allocate page for shared info page from low memory").
In order to fix this use early_memremap() to get a temporary virtual
address for shared info until va() can be used safely.
Signed-off-by: Juergen Gross <[email protected]>
Reviewed-by: Boris Ostrovsky <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
0 files changed, 0 insertions, 0 deletions