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| author | Marc Zyngier <maz@kernel.org> | 2022-07-04 19:01:50 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-07-17 13:55:33 +0300 |
| commit | e48407ff9796529a1e5048b9e4d6ea8a0334468e (patch) | |
| tree | 537a4673270b63605fd31c89afa0d6d89b9429b6 /arch/arm64/kvm | |
| parent | ba23aec9f4f27c00ac7a504aae60cae8a4087a19 (diff) | |
| download | linux-e48407ff9796529a1e5048b9e4d6ea8a0334468e.tar.xz | |
KVM: arm64: Rely on index_to_param() for size checks on userspace access
index_to_param() already checks that we use 64bit accesses for all
registers accessed from userspace.
However, we have extra checks in other places (such as index_to_params),
which is pretty confusing. Get rid off these redundant checks.
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 0fbdb21a3600..5dbe0f4b8167 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2871,9 +2871,6 @@ int kvm_arm_sys_reg_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_DEMUX) return demux_c15_get(reg->id, uaddr); - if (KVM_REG_SIZE(reg->id) != sizeof(__u64)) - return -ENOENT; - err = get_invariant_sys_reg(reg->id, uaddr); if (err != -ENOENT) return err; @@ -2906,9 +2903,6 @@ int kvm_arm_sys_reg_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_DEMUX) return demux_c15_set(reg->id, uaddr); - if (KVM_REG_SIZE(reg->id) != sizeof(__u64)) - return -ENOENT; - err = set_invariant_sys_reg(reg->id, uaddr); if (err != -ENOENT) return err; |