On Wed, 24 Nov 2021 at 13:07, Leif Lindholm <l...@nuviainc.com> wrote: > > Ard - how does this interact with e.g. ArmVirtPsciResetSystemLib, > which reads its conduit out of the DT passed to it by QEMU? >
As long as ArmCallSmc() and ArmCallHvc() continue to exist and behave as before, I don't think those libraries are affected. > > On Tue, Nov 16, 2021 at 11:32:54 +0000, Sami Mujawar wrote: > > Bugzilla: 3668 (https://bugzilla.tianocore.org/show_bug.cgi?id=3668) > > > > Define a PCD 'PcdMonitorConduitHvc' to select the conduit to use for > > monitor calls. PcdMonitorConduitHvc is defined as FALSE by default, > > meaning the SMC conduit is enabled as default. > > > > Adding PcdMonitorConduitHvc allows selection of HVC conduit to be used > > by virtual firmware implementations. > > > > Signed-off-by: Sami Mujawar <sami.muja...@arm.com> > > --- > > > > Notes: > > v2: > > - No code change since v1. Re-sending with V2 series. [SAMI] > > > > ArmPkg/ArmPkg.dec | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/ArmPkg/ArmPkg.dec b/ArmPkg/ArmPkg.dec > > index > > 9da1bbc9f2166dc8ae93f96a34d3165fffed34dc..9a53888ae52f00eec50e631cf1bfcacecf8bba87 > > 100644 > > --- a/ArmPkg/ArmPkg.dec > > +++ b/ArmPkg/ArmPkg.dec > > @@ -132,6 +132,11 @@ [PcdsFeatureFlag.common] > > # Define if the GICv3 controller should use the GICv2 legacy > > gArmTokenSpaceGuid.PcdArmGicV3WithV2Legacy|FALSE|BOOLEAN|0x00000042 > > > > + ## Define the conduit to use for monitor calls. > > + # Default PcdMonitorConduitHvc = FALSE, conduit = SMC > > + # If PcdMonitorConduitHvc = TRUE, conduit = HVC > > + gArmTokenSpaceGuid.PcdMonitorConduitHvc|FALSE|BOOLEAN|0x00000047 > > + > > [PcdsFeatureFlag.ARM] > > # Whether to map normal memory as non-shareable. FALSE is the safe > > choice, but > > # TRUE may be appropriate to fix performance problems if you don't care > > about > > -- > > 'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)' > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#84034): https://edk2.groups.io/g/devel/message/84034 Mute This Topic: https://groups.io/mt/87092744/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
