On 05/27/2015 01:56 AM, Sam Bobroff wrote: > In 64 bit kernels, the Fixed Point Exception Register (XER) is a 64 > bit field (e.g. in kvm_regs and kvm_vcpu_arch) and in most places it is > accessed as such. > > This patch corrects places where it is accessed as a 32 bit field by a > 64 bit kernel. In some cases this is via a 32 bit load or store > instruction which, depending on endianness, will cause either the > lower or upper 32 bits to be missed. In another case it is cast as a > u32, causing the upper 32 bits to be cleared. > > This patch corrects those places by extending the access methods to > 64 bits. > > Signed-off-by: Sam Bobroff <sam.bobr...@au1.ibm.com>
Reviewed-by: Thomas Huth <th...@redhat.com> Actually this patch also fixes a bug that SLOF sometimes crashes when a vCPU gets kicked out of kernel mode (see the following URL for details: https://bugzilla.redhat.com/show_bug.cgi?id=1178502 ), and I've just tested that this bug does not occur with this patch anymore, so also: Tested-by: Thomas Huth <th...@redhat.com> _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
