Ard - how does this interact with e.g. ArmVirtPsciResetSystemLib,
which reads its conduit out of the DT passed to it by QEMU?
/
Leif
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)'
>
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