diff options
| author | Avi Kivity <avi@redhat.com> | 2012-08-22 13:03:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-07 08:32:29 -0700 |
| commit | 4a3bb116ee8ab2f912fdb6d2af40028b15825151 (patch) | |
| tree | d83784241a15dd195a8d15c9c14241a645c60fca /virt/kvm/coalesced_mmio.c | |
| parent | b4d4dc33a372aaee2205d4506b4c7ead6275067d (diff) | |
x86/alternatives: Fix p6 nops on non-modular kernels
commit cb09cad44f07044d9810f18f6f9a6a6f3771f979 upstream.
Probably a leftover from the early days of self-patching, p6nops
are marked __initconst_or_module, which causes them to be
discarded in a non-modular kernel. If something later triggers
patching, it will overwrite kernel code with garbage.
Reported-by: Tomas Racek <tracek@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: qemu-devel@nongnu.org
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/r/5034AE84.90708@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Ben Jencks <ben@bjencks.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'virt/kvm/coalesced_mmio.c')
0 files changed, 0 insertions, 0 deletions