powerpc/ptrace-view: Use pt_regs values instead of thread_struct based one.
We will remove thread.amr/iamr/uamor in a later patch Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201127044424.40686-14-aneesh.kumar@linux.ibm.com
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@ -471,12 +471,12 @@ static int pkey_active(struct task_struct *target, const struct user_regset *reg
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static int pkey_get(struct task_struct *target, const struct user_regset *regset,
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struct membuf to)
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{
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BUILD_BUG_ON(TSO(amr) + sizeof(unsigned long) != TSO(iamr));
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if (!arch_pkeys_enabled())
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return -ENODEV;
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membuf_write(&to, &target->thread.amr, 2 * sizeof(unsigned long));
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membuf_store(&to, target->thread.regs->amr);
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membuf_store(&to, target->thread.regs->iamr);
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return membuf_store(&to, default_uamor);
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}
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@ -509,7 +509,8 @@ static int pkey_set(struct task_struct *target, const struct user_regset *regset
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* Pick the AMR values for the keys that kernel is using. This
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* will be indicated by the ~default_uamor bits.
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*/
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target->thread.amr = (new_amr & default_uamor) | (target->thread.amr & ~default_uamor);
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target->thread.regs->amr = (new_amr & default_uamor) |
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(target->thread.regs->amr & ~default_uamor);
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return 0;
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}
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