From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 6/6] arm64: kernel: Add support for Privileged Access Never
Date: Mon, 20 Jul 2015 15:01:01 +0100 [thread overview]
Message-ID: <20150720140100.GL20385@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <1437154221-5736-7-git-send-email-james.morse@arm.com>
On Fri, Jul 17, 2015 at 06:30:21PM +0100, James Morse wrote:
> diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
> index 56391fbae1e1..f243bb1adaa5 100644
> --- a/arch/arm64/include/asm/sysreg.h
> +++ b/arch/arm64/include/asm/sysreg.h
> @@ -20,12 +20,21 @@
> #ifndef __ASM_SYSREG_H
> #define __ASM_SYSREG_H
>
> +#include <asm/opcodes.h>
> +
> #define SCTLR_EL1_CP15BEN (0x1 << 5)
> #define SCTLR_EL1_SED (0x1 << 8)
>
> #define sys_reg(op0, op1, crn, crm, op2) \
> ((((op0)-2)<<19)|((op1)<<16)|((crn)<<12)|((crm)<<8)|((op2)<<5))
>
> +#define REG_PSTATE_PAN_IMM sys_reg(2, 0, 4, 0, 4)
> +#define PSTATE_PAN (1 << 22)
[...]
> diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h
> index 6913643bbe54..208db3df135a 100644
> --- a/arch/arm64/include/uapi/asm/ptrace.h
> +++ b/arch/arm64/include/uapi/asm/ptrace.h
> @@ -44,6 +44,7 @@
> #define PSR_I_BIT 0x00000080
> #define PSR_A_BIT 0x00000100
> #define PSR_D_BIT 0x00000200
> +#define PSR_PAN_BIT 0x00400000
What I meant is to use PSR_PAN_BIT instead of PSTATE_PAN, not just to
define it (i.e. remove the latter).
--
Catalin
next prev parent reply other threads:[~2015-07-20 14:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-17 17:30 [PATCH v2 0/6] arm64: kernel: Add support for Privileged Access Never James Morse
2015-07-17 17:30 ` [PATCH v2 1/6] arm64: kernel: Add cpuid_feature_extract_field() for 4bit sign extension James Morse
2015-07-20 11:32 ` Catalin Marinas
2015-07-20 13:20 ` Catalin Marinas
2015-07-17 17:30 ` [PATCH v2 2/6] arm64: kernel: preparatory: Move config_sctlr_el1 James Morse
2015-07-17 17:30 ` [PATCH v2 3/6] arm64: kernel: Add cpufeature 'enable' callback James Morse
2015-07-17 17:30 ` [PATCH v2 4/6] arm64: kernel: Add min_register_value and use '>=' for feature detection James Morse
2015-07-20 13:53 ` Catalin Marinas
2015-07-17 17:30 ` [PATCH v2 5/6] arm64: kernel: Add optional CONFIG_ parameter to ALTERNATIVE() James Morse
2015-07-17 17:30 ` [PATCH v2 6/6] arm64: kernel: Add support for Privileged Access Never James Morse
2015-07-20 14:01 ` Catalin Marinas [this message]
2015-07-21 10:30 ` Suzuki K. Poulose
2015-07-21 11:37 ` Catalin Marinas
2015-07-22 9:54 ` [PATCH] arm64: sys_reg() : Fix encoding of system registers Suzuki K. Poulose
2015-07-22 10:07 ` Catalin Marinas
2015-07-22 10:20 ` Suzuki K. Poulose
2015-07-22 10:38 ` [PATCH] arm64: Generalise msr_s/mrs_s operations Suzuki K. Poulose
2015-07-20 11:02 ` [PATCH v2 0/6] arm64: kernel: Add support for Privileged Access Never Vladimir Murzin
2015-07-20 11:17 ` Catalin Marinas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150720140100.GL20385@e104818-lin.cambridge.arm.com \
--to=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).