From: Andre Przywara <andre.przywara@arm.com>
To: Jaxson Han <jaxson.han@arm.com>
Cc: mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org,
wei.chen@arm.com
Subject: Re: [boot-wrapper PATCH 4/5] aarch64: Prepare for booting with EL2
Date: Mon, 26 Apr 2021 12:51:01 +0100 [thread overview]
Message-ID: <20210426125101.07c62fe6@slackpad.fritz.box> (raw)
In-Reply-To: <20210420072438.183086-5-jaxson.han@arm.com>
On Tue, 20 Apr 2021 15:24:37 +0800
Jaxson Han <jaxson.han@arm.com> wrote:
> Prepare for allowing boot-wrapper to be entered in EL2.
>
> Signed-off-by: Jaxson Han <jaxson.han@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Thanks,
Andre
> ---
> arch/aarch64/utils.S | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/arch/aarch64/utils.S b/arch/aarch64/utils.S
> index ae22ea7..94e9931 100644
> --- a/arch/aarch64/utils.S
> +++ b/arch/aarch64/utils.S
> @@ -37,10 +37,18 @@ find_logical_id:
> ret
>
> /*
> - * Setup EL3 vectors
> + * Setup EL3/EL2 vectors
> * x0: vector address
> */
> setup_vector:
> + mrs x1, CurrentEL
> + cmp x1, #CURRENTEL_EL2
> + b.eq 1f
> +
> msr VBAR_EL3, x0
> isb
> ret
> +
> +1: msr VBAR_EL2, x0
> + isb
> + ret
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next prev parent reply other threads:[~2021-04-26 11:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 7:24 [boot-wrapper PATCH 0/5] Add Armv8-R AArch64 support Jaxson Han
2021-04-20 7:24 ` [boot-wrapper PATCH 1/5] Decouple V2M_SYS config by auto-detect dtb node Jaxson Han
2021-04-26 11:30 ` Andre Przywara
2021-04-28 3:23 ` Jaxson Han
2021-05-10 8:30 ` Andre Przywara
2021-05-10 8:45 ` Jaxson Han
2021-04-20 7:24 ` [boot-wrapper PATCH 2/5] aarch64: Rename labels and prepare for lower EL booting Jaxson Han
2021-04-26 11:40 ` Andre Przywara
2021-04-28 3:28 ` Jaxson Han
2021-04-20 7:24 ` [boot-wrapper PATCH 3/5] gic-v3: Prepare for gicv3 with EL2 Jaxson Han
2021-04-26 11:48 ` Andre Przywara
2021-04-28 3:30 ` Jaxson Han
2021-04-20 7:24 ` [boot-wrapper PATCH 4/5] aarch64: Prepare for booting " Jaxson Han
2021-04-26 11:51 ` Andre Przywara [this message]
2021-04-20 7:24 ` [boot-wrapper PATCH 5/5] aarch64: Introduce EL2 boot code for Armv8-R AArch64 Jaxson Han
2021-04-26 12:35 ` Andre Przywara
2021-04-28 3:44 ` Jaxson Han
2021-05-10 2:13 ` Jaxson Han
2021-05-10 8:54 ` Andre Przywara
2021-05-11 2:03 ` Jaxson Han
2021-05-11 7:59 ` Andre Przywara
2021-05-11 9:49 ` Jaxson Han
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