Laszlo Ersek 21e57370fc OvmfPkg/VirtioRngDxe: don't unmap VRING at ExitBootServices() ... In one of the following patches, we'll change OvmfPkg/IoMmuDxe so that it unmaps all existent bus master operations (CommonBuffer, Read, Write) at ExitBootServices(), strictly after the individual device drivers abort pending DMA on the devices they manage, in their own ExitBootServices() notification functions. In preparation, remove the explicit VIRTIO_DEVICE_PROTOCOL.UnmapSharedBuffer() call from VirtioRngExitBoot(), originally added in commit 0a568ccbcb ("OvmfPkg/VirtioRngDxe: map host address to device address", 2017-08-23). Add a DEBUG message so we can observe the ordering between VirtioRngExitBoot() and the upcoming cleanup of mappings in OvmfPkg/IoMmuDxe. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Brijesh Singh <brijesh.singh@amd.com> Tested-by: Brijesh Singh <brijesh.singh@amd.com>		2017-09-08 20:23:56 +02:00
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VirtioRng.c	OvmfPkg/VirtioRngDxe: don't unmap VRING at ExitBootServices()	2017-09-08 20:23:56 +02:00
VirtioRng.h	OvmfPkg/VirtioRngDxe: map host address to device address	2017-08-25 10:42:19 +02:00
VirtioRng.inf	OvmfPkg: implement UEFI driver for Virtio RNG devices	2016-02-24 12:07:32 +01:00