diff options
| author | Jinqian Yang <yangjinqian1@huawei.com> | 2025-09-11 19:46:21 +0800 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-09-19 13:55:57 +0100 |
| commit | be8c9192eaeee21fdaacd72ad4ba992b9e42377b (patch) | |
| tree | e7eafc5f53dd9b1fb8c2a1942d3d19e6b9ccd269 /tools | |
| parent | 1a0b2bf6ff11d2e0438f3a7d1d299339edab96e8 (diff) | |
KVM: arm64: selftests: Test writes to ID_AA64MMFR1_EL1.{HCX, TWED}
Assert that the EL2 features {HCX, TWED} of ID_AA64MMFR1_EL1 are writable
from userspace. They are only allowed to be downgraded in userspace.
Signed-off-by: Jinqian Yang <yangjinqian1@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/kvm/arm64/set_id_regs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/arm64/set_id_regs.c b/tools/testing/selftests/kvm/arm64/set_id_regs.c index 189321e96925..d0aaecf77710 100644 --- a/tools/testing/selftests/kvm/arm64/set_id_regs.c +++ b/tools/testing/selftests/kvm/arm64/set_id_regs.c @@ -165,7 +165,9 @@ static const struct reg_ftr_bits ftr_id_aa64mmfr0_el1[] = { static const struct reg_ftr_bits ftr_id_aa64mmfr1_el1[] = { REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, TIDCP1, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, AFP, 0), + REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, HCX, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, ETS, 0), + REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, TWED, 0), REG_FTR_BITS(FTR_HIGHER_SAFE, ID_AA64MMFR1_EL1, SpecSEI, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, PAN, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, LO, 0), |