From aaf546879ab71722c36738ccc6f0f0ab4ecf5076 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 1 Jun 2023 13:57:12 +0200 Subject: ArmVirt/PlatformBootManagerLib: factor out IsVirtioPci() IsVirtioPciRng() becomes just a thin wrapper for IsVirtioPci(). This allows to add similar thin wrappers for other virtio devices in the future. Signed-off-by: Gerd Hoffmann Reviewed-by: Ard Biesheuvel --- .../Library/PlatformBootManagerLib/PlatformBm.c | 30 +++++++++++++++++----- 1 file changed, 23 insertions(+), 7 deletions(-) diff --git a/ArmVirtPkg/Library/PlatformBootManagerLib/PlatformBm.c b/ArmVirtPkg/Library/PlatformBootManagerLib/PlatformBm.c index 5eb6f0f9c1..ed38c42a43 100644 --- a/ArmVirtPkg/Library/PlatformBootManagerLib/PlatformBm.c +++ b/ArmVirtPkg/Library/PlatformBootManagerLib/PlatformBm.c @@ -313,15 +313,16 @@ IsVirtioRng ( } /** - This FILTER_FUNCTION checks if a handle corresponds to a Virtio RNG device at - the EFI_PCI_IO_PROTOCOL level. + This function checks if a handle corresponds to the Virtio Device ID given + at the EFI_PCI_IO_PROTOCOL level. **/ STATIC BOOLEAN EFIAPI -IsVirtioPciRng ( +IsVirtioPci ( IN EFI_HANDLE Handle, - IN CONST CHAR16 *ReportText + IN CONST CHAR16 *ReportText, + IN UINT16 VirtIoDeviceId ) { EFI_STATUS Status; @@ -387,11 +388,11 @@ IsVirtioPciRng ( // // From DeviceId and RevisionId, determine whether the device is a // modern-only Virtio 1.0 device. In case of Virtio 1.0, DeviceId can - // immediately be restricted to VIRTIO_SUBSYSTEM_ENTROPY_SOURCE, and + // immediately be restricted to VirtIoDeviceId, and // SubsystemId will only play a sanity-check role. Otherwise, DeviceId can // only be sanity-checked, and SubsystemId will decide. // - if ((DeviceId == 0x1040 + VIRTIO_SUBSYSTEM_ENTROPY_SOURCE) && + if ((DeviceId == 0x1040 + VirtIoDeviceId) && (RevisionId >= 0x01)) { Virtio10 = TRUE; @@ -419,7 +420,7 @@ IsVirtioPciRng ( return TRUE; } - if (!Virtio10 && (SubsystemId == VIRTIO_SUBSYSTEM_ENTROPY_SOURCE)) { + if (!Virtio10 && (SubsystemId == VirtIoDeviceId)) { return TRUE; } @@ -430,6 +431,21 @@ PciError: return FALSE; } +/** + This FILTER_FUNCTION checks if a handle corresponds to a Virtio RNG device at + the EFI_PCI_IO_PROTOCOL level. +**/ +STATIC +BOOLEAN +EFIAPI +IsVirtioPciRng ( + IN EFI_HANDLE Handle, + IN CONST CHAR16 *ReportText + ) +{ + return IsVirtioPci (Handle, ReportText, VIRTIO_SUBSYSTEM_ENTROPY_SOURCE); +} + /** This CALLBACK_FUNCTION attempts to connect a handle non-recursively, asking the matching driver to produce all first-level child handles. -- cgit v1.2.3