[edk2-devel] [PATCH 5/5] OvmfPkg/VirtioSerialDxe: use TPL_NOTIFY
Ard Biesheuvel
ardb at kernel.org
Thu Jun 1 09:07:30 UTC 2023
On Thu, 1 Jun 2023 at 09:56, Ard Biesheuvel <ardb at kernel.org> wrote:
>
> On Fri, 12 May 2023 at 16:23, Gerd Hoffmann <kraxel at 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 at redhat.com>
>
> Acked-by: Ard Biesheuvel <ardb at kernel.org>
>
> I'll take this as a separate fix.
>
Merged as #4461
> > ---
> > 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
> >
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