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x86/paging: don't unconditionally BUG() on finding SHARED_M2P_ENTRY stable-4.5 staging-4.5
authorJan Beulich <jbeulich@suse.com>
Tue, 12 Dec 2017 14:13:30 +0000 (15:13 +0100)
committerJan Beulich <jbeulich@suse.com>
Tue, 12 Dec 2017 14:13:30 +0000 (15:13 +0100)
commit62cc20d4cb872e9db0ba6da3fb32817c410e7a8a
tree675ca0125ccf95f97cdc4d9dcaad3826a941a47ftree
parent7e02b65a8509bd98adec5ff48fe763ea5fc98abccommit | diff
x86/paging: don't unconditionally BUG() on finding SHARED_M2P_ENTRY

PV guests can fully control the values written into the P2M.

This is XSA-251.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
master commit: b4d0218cff66b7eaa9c9b8dc9bd71e7b089b016d
master date: 2017-12-12 14:30:17 +0100
xen/arch/x86/mm/paging.c diff | blob | blame | history
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