From mboxrd@z Thu Jan  1 00:00:00 1970
From: dave.hansen at intel.com (Dave Hansen)
Date: Fri, 16 Mar 2018 15:24:28 -0700
Subject: [PATCH v12 14/22] selftests/vm: clear the bits in shadow reg when
 a pkey is freed.
In-Reply-To: <1519264541-7621-15-git-send-email-linuxram@us.ibm.com>
References: <1519264541-7621-1-git-send-email-linuxram@us.ibm.com>
 <1519264541-7621-15-git-send-email-linuxram@us.ibm.com>
Message-ID: <5622aacf-adc6-e547-8f36-9a43f830c29b@intel.com>

On 02/21/2018 05:55 PM, Ram Pai wrote:
> diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
> index c4c73e6..e82bd88 100644
> --- a/tools/testing/selftests/vm/protection_keys.c
> +++ b/tools/testing/selftests/vm/protection_keys.c
> @@ -586,7 +586,8 @@ int sys_pkey_free(unsigned long pkey)
>  	int ret = syscall(SYS_pkey_free, pkey);
>  
>  	if (!ret)
> -		shadow_pkey_reg &= reset_bits(pkey, PKEY_DISABLE_ACCESS);
> +		shadow_pkey_reg &= reset_bits(pkey,
> +				PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE);
>  	dprintf1("%s(pkey=%ld) syscall ret: %d\n", __func__, pkey, ret);
>  	return ret;
>  }

What about your EXEC bit?
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From mboxrd@z Thu Jan  1 00:00:00 1970
From: dave.hansen@intel.com (Dave Hansen)
Date: Fri, 16 Mar 2018 15:24:28 -0700
Subject: [PATCH v12 14/22] selftests/vm: clear the bits in shadow reg when
 a pkey is freed.
In-Reply-To: <1519264541-7621-15-git-send-email-linuxram@us.ibm.com>
References: <1519264541-7621-1-git-send-email-linuxram@us.ibm.com>
 <1519264541-7621-15-git-send-email-linuxram@us.ibm.com>
Message-ID: <5622aacf-adc6-e547-8f36-9a43f830c29b@intel.com>
Content-Type: text/plain; charset="UTF-8"
Message-ID: <20180316222428.ph-0IT4j8ExVU40ZydS2UuxPlo7MpmGf32zjP9kx67k@z>

On 02/21/2018 05:55 PM, Ram Pai wrote:
> diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
> index c4c73e6..e82bd88 100644
> --- a/tools/testing/selftests/vm/protection_keys.c
> +++ b/tools/testing/selftests/vm/protection_keys.c
> @@ -586,7 +586,8 @@ int sys_pkey_free(unsigned long pkey)
>  	int ret = syscall(SYS_pkey_free, pkey);
>  
>  	if (!ret)
> -		shadow_pkey_reg &= reset_bits(pkey, PKEY_DISABLE_ACCESS);
> +		shadow_pkey_reg &= reset_bits(pkey,
> +				PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE);
>  	dprintf1("%s(pkey=%ld) syscall ret: %d\n", __func__, pkey, ret);
>  	return ret;
>  }

What about your EXEC bit?
--
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