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From: Peter Maydell <peter.maydell@linaro.org>
To: Leif Lindholm <leif@nuviainc.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	Shashi Mallela <shashi.mallela@linaro.org>,
	Radoslaw Biernacki <rad@semihalf.com>,
	QEMU Developers <qemu-devel@nongnu.org>,
	narmstrong@baylibre.com, Eric Auger <eric.auger@redhat.com>,
	qemu-arm <qemu-arm@nongnu.org>,
	Igor Mammedov <imammedo@redhat.com>
Subject: Re: [PATCH v8 07/10] hw/arm/sbsa-ref: add ITS support in SBSA GIC
Date: Fri, 3 Sep 2021 13:09:39 +0100	[thread overview]
Message-ID: <CAFEAcA_hD2Gw6f6VpKdo+VJF2-uDD=8WK0KOz6Muj14XgyitQg@mail.gmail.com> (raw)
In-Reply-To: <20210903120125.meyyevqxphhumubp@leviathan>

On Fri, 3 Sept 2021 at 13:01, Leif Lindholm <leif@nuviainc.com> wrote:
> On Thu, Sep 02, 2021 at 13:51:26 +0100, Peter Maydell wrote:
> > How does guest software on this board figure out the memory
> > layout ? Is there a mechanism for telling it "this is version 2
> > of this board" ?
>
> Not currently. Aiming to look like most SBSA platforms, it is
> hard-wired, and firmware passes that information to the os.
>
> This is the kind of thing I eventually want to do using a PV-model
> SCP. As a stop-gap, we could push it through the DT, like we do for
> cpus and memory?

That's up to you, I guess. You could alternatively have some
sort of "board ID" register that the firmware reads ?

-- PMM


  reply	other threads:[~2021-09-03 12:16 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-12 16:53 [PATCH v8 00/10] GICv3 LPI and ITS feature implementation Shashi Mallela
2021-08-12 16:53 ` [PATCH v8 01/10] hw/intc: GICv3 ITS initial framework Shashi Mallela
2021-08-12 16:53 ` [PATCH v8 02/10] hw/intc: GICv3 ITS register definitions added Shashi Mallela
2021-08-12 16:53 ` [PATCH v8 03/10] hw/intc: GICv3 ITS command queue framework Shashi Mallela
2021-08-12 16:53 ` [PATCH v8 04/10] hw/intc: GICv3 ITS Command processing Shashi Mallela
2021-08-13  7:51   ` Neil Armstrong
2021-08-12 16:53 ` [PATCH v8 05/10] hw/intc: GICv3 ITS Feature enablement Shashi Mallela
2021-08-12 16:53 ` [PATCH v8 06/10] hw/intc: GICv3 redistributor ITS processing Shashi Mallela
2021-08-19 13:21   ` Peter Maydell
2021-08-12 16:53 ` [PATCH v8 07/10] hw/arm/sbsa-ref: add ITS support in SBSA GIC Shashi Mallela
2021-08-19 13:27   ` Peter Maydell
2021-08-23 15:05     ` shashi.mallela
2021-09-02 12:42     ` Leif Lindholm
2021-09-02 12:51       ` Peter Maydell
2021-09-03 12:01         ` Leif Lindholm
2021-09-03 12:09           ` Peter Maydell [this message]
2021-09-23 16:00       ` Peter Maydell
2021-10-15 12:23         ` Leif Lindholm
2021-11-09 13:43           ` Peter Maydell
2021-11-09 20:42             ` Leif Lindholm
2021-11-09 21:21               ` Peter Maydell
2021-11-09 22:52                 ` Leif Lindholm
2021-11-11 16:55                   ` Peter Maydell
2021-11-11 18:21                     ` Leif Lindholm
2021-08-12 16:53 ` [PATCH v8 08/10] tests/data/acpi/virt: Add IORT files for ITS Shashi Mallela
2021-08-19 13:21   ` Peter Maydell
2021-08-12 16:53 ` [PATCH v8 09/10] hw/arm/virt: add ITS support in virt GIC Shashi Mallela
2021-08-12 16:53 ` [PATCH v8 10/10] tests/data/acpi/virt: Update IORT files for ITS Shashi Mallela
2021-08-19 13:22   ` Peter Maydell

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