vgic-v3 driver queries CPU affinity level up to Aff3, which is valid for arm64. However, for arm up to Aff2 levels are supported, so querying for 3rd level ends with upper bits of MPIDR are treated as valid affinity level which is not true. So, report zero for any affinity level above 2. Signed-off-by: Vladimir Murzin <vladimir.murzin@xxxxxxx> --- arch/arm/include/asm/cputype.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h index 1ee94c7..96cef49 100644 --- a/arch/arm/include/asm/cputype.h +++ b/arch/arm/include/asm/cputype.h @@ -55,9 +55,10 @@ #define MPIDR_LEVEL_BITS 8 #define MPIDR_LEVEL_MASK ((1 << MPIDR_LEVEL_BITS) - 1) +#define MPIDR_LEVEL_SHIFT(level) (MPIDR_LEVEL_BITS * level) #define MPIDR_AFFINITY_LEVEL(mpidr, level) \ - ((mpidr >> (MPIDR_LEVEL_BITS * level)) & MPIDR_LEVEL_MASK) + ((level < 3) ? ((mpidr >> MPIDR_LEVEL_SHIFT(level)) & MPIDR_LEVEL_MASK) : 0) #define ARM_CPU_IMP_ARM 0x41 #define ARM_CPU_IMP_INTEL 0x69 -- 1.7.9.5 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
