tree 5b3f91221716c9998470627fdfefbb502c54faa7
parent 838fa557d25c1d1c7eeff9b55127240f1a4bee13
author Mark Brown <broonie@kernel.org> 1734358026 +0000
committer Mark Brown <broonie@kernel.org> 1734358026 +0000

KVM: arm64: Fix set_id_regs selftest for ASIDBITS becoming unwritable

In commit 03c7527e97f7 ("KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits
to be overridden") we made that bitfield in the ID registers unwritable
however the change neglected to make the corresponding update to set_id_regs
resulting in it failing:

# ok 56 ID_AA64MMFR0_EL1_BIGEND
# ==== Test Assertion Failure ====
#   aarch64/set_id_regs.c:434: masks[idx] & ftr_bits[j].mask == ftr_bits[j].mask
#   pid=5566 tid=5566 errno=22 - Invalid argument
#      1	0x00000000004034a7: test_vm_ftr_id_regs at set_id_regs.c:434
#      2	0x0000000000401b53: main at set_id_regs.c:684
#      3	0x0000ffff8e6b7543: ?? ??:0
#      4	0x0000ffff8e6b7617: ?? ??:0
#      5	0x0000000000401e6f: _start at ??:?
#   0 != 0xf0 (masks[idx] & ftr_bits[j].mask != ftr_bits[j].mask)
not ok 8 selftests: kvm: set_id_regs # exit=254

Remove ID_AA64MMFR1_EL1.ASIDBITS from the set of bitfields we test for
writeability.

Fixes: 03c7527e97f7 ("KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits to be overridden")
Signed-off-by: Mark Brown <broonie@kernel.org>