From: "Andrei Warkentin" <andrei.warkentin@intel.com>
To: "Kinney, Michael D" <michael.d.kinney@intel.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>,
"kraxel@redhat.com" <kraxel@redhat.com>
Cc: Daniel Schaefer <git@danielschaefer.me>,
Sunil V L <sunilvl@ventanamicro.com>
Subject: Re: [edk2-devel] [edk2 2/2] MdePkg: add BaseSerialPortLibRiscVSbi
Date: Wed, 1 Mar 2023 17:26:27 +0000 [thread overview]
Message-ID: <PH8PR11MB685646F80A9042E6E2DD39AB83AD9@PH8PR11MB6856.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CO1PR11MB4929B83143E37DE1E444F069D2AD9@CO1PR11MB4929.namprd11.prod.outlook.com>
Hi Michael,
What module type should I use instead? The reason being this SerialPortLib implementation specifically fits into the class of UEFI implementations, where RAM is always available (initialized by something else prior to Tiano) and non-const globals can be used (e.g. PrePi).
A
-----Original Message-----
From: Kinney, Michael D <michael.d.kinney@intel.com>
Sent: Wednesday, March 1, 2023 10:56 AM
To: devel@edk2.groups.io; kraxel@redhat.com; Warkentin, Andrei <andrei.warkentin@intel.com>
Cc: Daniel Schaefer <git@danielschaefer.me>; Sunil V L <sunilvl@ventanamicro.com>; Kinney, Michael D <michael.d.kinney@intel.com>
Subject: RE: [edk2-devel] [edk2 2/2] MdePkg: add BaseSerialPortLibRiscVSbi
Using a global is not compatible with XIP code where only const globals are supported.
A module of type BASE is considered compatible with XIP components.
Mike
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Gerd Hoffmann
> Sent: Wednesday, March 1, 2023 1:07 AM
> To: Warkentin, Andrei <andrei.warkentin@intel.com>
> Cc: devel@edk2.groups.io; Daniel Schaefer <git@danielschaefer.me>; Sunil V L <sunilvl@ventanamicro.com>
> Subject: Re: [edk2-devel] [edk2 2/2] MdePkg: add BaseSerialPortLibRiscVSbi
>
> On Wed, Mar 01, 2023 at 08:50:38AM +0000, Warkentin, Andrei wrote:
> > The library caller could call Poll() first,
>
> Ah, Poll is part of the library API, not just an internal helper.
> Ok, makes sense then.
>
> series:
> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
>
> take care,
> Gerd
>
>
>
>
>
next prev parent reply other threads:[~2023-03-01 17:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-01 7:43 [edk2 0/2] RISC-V SBI-backed SerialLib Andrei Warkentin
2023-03-01 7:43 ` [edk2 1/2] MdePkg: BaseRiscVSbiLib: make more useful to consumers Andrei Warkentin
2023-03-01 7:43 ` [edk2 2/2] MdePkg: add BaseSerialPortLibRiscVSbi Andrei Warkentin
2023-03-01 8:13 ` [edk2-devel] " Gerd Hoffmann
2023-03-01 8:50 ` Andrei Warkentin
2023-03-01 9:07 ` Gerd Hoffmann
2023-03-01 16:55 ` Michael D Kinney
2023-03-01 17:26 ` Andrei Warkentin [this message]
2023-03-01 17:51 ` Michael D Kinney
2023-03-01 17:56 ` Andrei Warkentin
2023-03-02 10:34 ` Sunil V L
2023-03-02 13:32 ` Andrei Warkentin
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