From: Laurent Vivier <laurent@vivier.eu>
To: Sandipan Das <sandipan@linux.ibm.com>,
david@gibson.dropbear.id.au, richard.henderson@linaro.org
Cc: qemu-devel@nongnu.org, riku.voipio@iki.fi,
nikunj@linux.vnet.ibm.com, naveen.n.rao@linux.vnet.ibm.com
Subject: Re: [Qemu-devel] [PATCH] target-ppc: Extend HWCAP2 bits for ISA 3.0
Date: Thu, 6 Sep 2018 09:04:19 +0200 [thread overview]
Message-ID: <876f77aa-ce49-2ee4-1f21-5f371076c9c9@vivier.eu> (raw)
In-Reply-To: <20180906065729.2487-1-sandipan@linux.ibm.com>
Le 06/09/2018 à 08:57, Sandipan Das a écrit :
> This adds the HWCAP2 bit to detect if a linux user process is
> running on an ISA 3.0 compliant cpu like POWER9. This can be
> verified using a simple test program that prints the value in
> the auxiliary vector for AT_HWCAP2 as shown below.
>
> Before:
> $ qemu-ppc64le -cpu power8 test
> 0x8c000000
>
> $ qemu-ppc64le -cpu power9 test
> 0x8c000000
>
> After:
> $ qemu-ppc64le -cpu power8 test
> 0x8c000000
>
> $ qemu-ppc64le -cpu power9 test
> 0x8c800000
>
> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
> ---
> linux-user/elfload.c | 2 ++
> 1 file changed, 2 insertions(+)
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
next prev parent reply other threads:[~2018-09-06 7:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-06 6:57 [Qemu-devel] [PATCH] target-ppc: Extend HWCAP2 bits for ISA 3.0 Sandipan Das
2018-09-06 7:04 ` Laurent Vivier [this message]
2018-09-07 1:30 ` David Gibson
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