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The current rd/wrmsr_on_cpus helpers assume that the supplied cpumasks are contiguous. However, there are machines out there like some K8 multinode Opterons which have a non-contiguous core enumeration on each node (e.g. cores 0,2 on node 0 instead of 0,1), see http://www.gossamer-threads.com/lists/linux/kernel/1160268. This patch fixes out-of-bounds writes (see URL above) by adding per-CPU msr structs which are used on the respective cores. Additionally, two helpers, msrs_{alloc,free}, are provided for use by the callers of the MSR accessors. Cc: H. Peter Anvin <hpa@zytor.com> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Aristeu Rozanski <aris@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <20091211171440.GD31998@aftab> Signed-off-by: H. Peter Anvin <hpa@zytor.com> |
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| .. | ||
| amd64_edac_dbg.c | ||
| amd64_edac_inj.c | ||
| amd64_edac.c | ||
| amd64_edac.h | ||
| amd76x_edac.c | ||
| amd8111_edac.c | ||
| amd8111_edac.h | ||
| amd8131_edac.c | ||
| amd8131_edac.h | ||
| cell_edac.c | ||
| cpc925_edac.c | ||
| e7xxx_edac.c | ||
| e752x_edac.c | ||
| edac_core.h | ||
| edac_device_sysfs.c | ||
| edac_device.c | ||
| edac_mc_sysfs.c | ||
| edac_mc.c | ||
| edac_mce_amd.c | ||
| edac_mce_amd.h | ||
| edac_module.c | ||
| edac_module.h | ||
| edac_pci_sysfs.c | ||
| edac_pci.c | ||
| edac_stub.c | ||
| i3000_edac.c | ||
| i3200_edac.c | ||
| i5000_edac.c | ||
| i5100_edac.c | ||
| i5400_edac.c | ||
| i82443bxgx_edac.c | ||
| i82860_edac.c | ||
| i82875p_edac.c | ||
| i82975x_edac.c | ||
| Kconfig | ||
| Makefile | ||
| mpc85xx_edac.c | ||
| mpc85xx_edac.h | ||
| mv64x60_edac.c | ||
| mv64x60_edac.h | ||
| pasemi_edac.c | ||
| ppc4xx_edac.c | ||
| ppc4xx_edac.h | ||
| r82600_edac.c | ||
| x38_edac.c | ||