From: "Alex Bennée" <alex.bennee@linaro.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Liviu Ionescu <ilg@livius.net>,
qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
keithp@keithp.com, qemu-arm@nongnu.org
Subject: Re: Semihosting, arm, riscv, ppc and common code
Date: Tue, 14 Jan 2020 09:51:25 +0000 [thread overview]
Message-ID: <87sgkimkma.fsf@linaro.org> (raw)
In-Reply-To: <cd9a2de94700a2781f176247131dceba690d8f31.camel@kernel.crashing.org>
Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> On Tue, 2020-01-14 at 09:32 +0200, Liviu Ionescu wrote:
>> > On 14 Jan 2020, at 08:25, Benjamin Herrenschmidt <
>> > benh@kernel.crashing.org> wrote:
>> >
>> > I noticed that the bulk of arm-semi.c (or riscv-semi.c) is
>> > trivially
>> > made completely generic by doing a couple of changes:
>>
>> Last year I did a similar exercise in OpenOCD, where I took the Arm
>> semihosting code from the Arm specific location, extracted the common
>> part, updated it for latest Arm 64-bit specs, and then used the
>> common code for both Arm and RISC-V.
>>
>> If you think useful, you might take a look there too.
>
> Well, one of the LCA talks wasn't that interesting so I started doing
> it and am almost done :-)
>
> I'll look at doing something for arm, riscv and ppc and send patches
> once I get it working.
Cool. Are you considering linux-user as well or are these only things
that make sense for system emulation?
>
> Cheers,
> Ben.
>
>>
>> Regards,
>>
>> Liviu
--
Alex Bennée
WARNING: multiple messages have this Message-ID (diff)
From: "Alex Bennée" <alex.bennee@linaro.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Liviu Ionescu <ilg@livius.net>,
keithp@keithp.com, qemu-arm@nongnu.org, qemu-devel@nongnu.org,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: Semihosting, arm, riscv, ppc and common code
Date: Tue, 14 Jan 2020 09:51:25 +0000 [thread overview]
Message-ID: <87sgkimkma.fsf@linaro.org> (raw)
In-Reply-To: <cd9a2de94700a2781f176247131dceba690d8f31.camel@kernel.crashing.org>
Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> On Tue, 2020-01-14 at 09:32 +0200, Liviu Ionescu wrote:
>> > On 14 Jan 2020, at 08:25, Benjamin Herrenschmidt <
>> > benh@kernel.crashing.org> wrote:
>> >
>> > I noticed that the bulk of arm-semi.c (or riscv-semi.c) is
>> > trivially
>> > made completely generic by doing a couple of changes:
>>
>> Last year I did a similar exercise in OpenOCD, where I took the Arm
>> semihosting code from the Arm specific location, extracted the common
>> part, updated it for latest Arm 64-bit specs, and then used the
>> common code for both Arm and RISC-V.
>>
>> If you think useful, you might take a look there too.
>
> Well, one of the LCA talks wasn't that interesting so I started doing
> it and am almost done :-)
>
> I'll look at doing something for arm, riscv and ppc and send patches
> once I get it working.
Cool. Are you considering linux-user as well or are these only things
that make sense for system emulation?
>
> Cheers,
> Ben.
>
>>
>> Regards,
>>
>> Liviu
--
Alex Bennée
next prev parent reply other threads:[~2020-01-14 9:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-14 6:25 Semihosting, arm, riscv, ppc and common code Benjamin Herrenschmidt
2020-01-14 6:25 ` Benjamin Herrenschmidt
2020-01-14 7:32 ` Liviu Ionescu
2020-01-14 7:32 ` Liviu Ionescu
2020-01-14 7:53 ` Benjamin Herrenschmidt
2020-01-14 7:53 ` Benjamin Herrenschmidt
2020-01-14 9:51 ` Alex Bennée [this message]
2020-01-14 9:51 ` Alex Bennée
2020-01-15 1:14 ` Benjamin Herrenschmidt
2020-01-15 1:14 ` Benjamin Herrenschmidt
2020-01-15 12:01 ` Alex Bennée
2020-01-15 12:01 ` Alex Bennée
2020-01-15 12:30 ` Liviu Ionescu
2020-01-15 12:30 ` Liviu Ionescu
2020-01-15 21:28 ` Richard Henderson
2020-01-15 22:02 ` Liviu Ionescu
2020-01-15 22:02 ` Liviu Ionescu
2020-01-16 2:04 ` Benjamin Herrenschmidt
2020-01-16 2:04 ` Benjamin Herrenschmidt
2020-01-16 7:57 ` Liviu Ionescu
2020-01-16 7:57 ` Liviu Ionescu
2020-01-16 6:33 ` Benjamin Herrenschmidt
2020-01-16 6:33 ` Benjamin Herrenschmidt
2020-01-14 9:59 ` Peter Maydell
2020-01-14 9:59 ` Peter Maydell
2020-01-15 1:17 ` Benjamin Herrenschmidt
2020-01-15 1:17 ` Benjamin Herrenschmidt
2020-01-15 13:32 ` Peter Maydell
2020-01-15 13:32 ` Peter Maydell
2020-01-16 2:01 ` Benjamin Herrenschmidt
2020-01-16 2:01 ` Benjamin Herrenschmidt
2020-01-16 11:05 ` Peter Maydell
2020-01-16 11:05 ` Peter Maydell
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