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From: "Ard Biesheuvel" <ardb@kernel.org>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: devel@edk2.groups.io, Jiewen Yao <jiewen.yao@intel.com>,
	 Jordan Justen <jordan.l.justen@intel.com>,
	Leif Lindholm <quic_llindhol@quicinc.com>,
	 Pawel Polawski <ppolawsk@redhat.com>,
	Sami Mujawar <sami.mujawar@arm.com>,
	 Oliver Steffen <osteffen@redhat.com>,
	Ard Biesheuvel <ardb+tianocore@kernel.org>
Subject: Re: [PATCH 5/5] OvmfPkg/VirtioSerialDxe: use TPL_NOTIFY
Date: Thu, 1 Jun 2023 09:56:13 +0200	[thread overview]
Message-ID: <CAMj1kXGSfeERSx3mXRFY6o6vL7OxCf0Tgh6Zfjuv1an8Ar4xWw@mail.gmail.com> (raw)
In-Reply-To: <20230512142306.1323983-6-kraxel@redhat.com>

On Fri, 12 May 2023 at 16:23, Gerd Hoffmann <kraxel@redhat.com> wrote:
>
> Apparently TPL_CALLBACK is too low, code runs into an ASSERT
> complaining the new TPL is lower than the old TPL.
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

Acked-by: Ard Biesheuvel <ardb@kernel.org>

I'll take this as a separate fix.

> ---
>  OvmfPkg/VirtioSerialDxe/VirtioSerialPort.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/OvmfPkg/VirtioSerialDxe/VirtioSerialPort.c b/OvmfPkg/VirtioSerialDxe/VirtioSerialPort.c
> index 522b25e9698c..e4a58deff162 100644
> --- a/OvmfPkg/VirtioSerialDxe/VirtioSerialPort.c
> +++ b/OvmfPkg/VirtioSerialDxe/VirtioSerialPort.c
> @@ -158,7 +158,7 @@ VirtioSerialIoWrite (
>
>    VirtioSerialRingClearTx (SerialIo->Dev, PortTx (SerialIo->PortId));
>
> -  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
> +  OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
>    if (SerialIo->WriteOffset &&
>        (SerialIo->WriteOffset + *BufferSize > PORT_TX_BUFSIZE))
>    {
> @@ -201,7 +201,7 @@ VirtioSerialIoRead (
>      goto NoData;
>    }
>
> -  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
> +  OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
>    if (SerialIo->WriteOffset) {
>      DEBUG ((DEBUG_VERBOSE, "%a:%d: WriteFlush %d\n", __func__, __LINE__, SerialIo->WriteOffset));
>      VirtioSerialRingSendBuffer (
> --
> 2.40.1
>

  reply	other threads:[~2023-06-01  7:56 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-12 14:23 [PATCH 0/5] ArmVirt: add VirtioSerialDxe Gerd Hoffmann
2023-05-12 14:23 ` [PATCH 1/5] ArmVirt: add VirtioSerialDxe to ArmVirtQemu builds Gerd Hoffmann
2023-06-01  7:58   ` [edk2-devel] " Ard Biesheuvel
2023-05-12 14:23 ` [PATCH 2/5] ArmVirt/PlatformBootManagerLib: factor out IsVirtio() Gerd Hoffmann
2023-06-01  7:57   ` Ard Biesheuvel
2023-05-12 14:23 ` [PATCH 3/5] ArmVirt/PlatformBootManagerLib: factor out IsVirtioPci() Gerd Hoffmann
2023-06-01  8:00   ` Ard Biesheuvel
2023-05-12 14:23 ` [PATCH 4/5] ArmVirt/PlatformBootManagerLib: set up virtio serial as console Gerd Hoffmann
2023-06-01  8:13   ` Ard Biesheuvel
2023-05-12 14:23 ` [PATCH 5/5] OvmfPkg/VirtioSerialDxe: use TPL_NOTIFY Gerd Hoffmann
2023-06-01  7:56   ` Ard Biesheuvel [this message]
2023-06-01  9:07     ` Ard Biesheuvel
2023-06-01  6:17 ` [PATCH 0/5] ArmVirt: add VirtioSerialDxe Gerd Hoffmann

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