Laszlo Ersek 5659ec3fa9 OvmfPkg/VirtioBlkDxe: 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 VirtioBlkExitBoot(), originally added in commit 1916513047 ("OvmfPkg/VirtioBlkDxe: map VRING using VirtioRingMap()", 2017-08-27). Add a DEBUG message so we can observe the ordering between VirtioBlkExitBoot() 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 20:23:47 +02:00
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VirtioBlk.c	OvmfPkg/VirtioBlkDxe: don't unmap VRING at ExitBootServices()	2017-09-08 20:23:47 +02:00
VirtioBlk.h	OvmfPkg/VirtioBlkDxe: map VRING using VirtioRingMap()	2017-08-28 11:00:14 +02:00
VirtioBlk.inf	…