Add virtio-mmio support (VirtioMmioDeviceLib and VirtioFdtDxe).

With this patch added and a new enough qemu version (6.2+) edk2
will detect virtio-mmio devices, so it is possible to boot from
storage (virtio-blk, virtio-scsi) or network (virtio-net).

https://bugzilla.tianocore.org/show_bug.cgi?id=3689
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 OvmfPkg/Microvm/MicrovmX64.dsc | 2 ++
 OvmfPkg/Microvm/MicrovmX64.fdf | 1 +
 2 files changed, 3 insertions(+)

diff --git a/OvmfPkg/Microvm/MicrovmX64.dsc b/OvmfPkg/Microvm/MicrovmX64.dsc
index edddf6c29b32..a78c8f3dd89f 100644
--- a/OvmfPkg/Microvm/MicrovmX64.dsc
+++ b/OvmfPkg/Microvm/MicrovmX64.dsc
@@ -233,6 +233,7 @@ [LibraryClasses.common]
   SerialPortLib|MdeModulePkg/Library/BaseSerialPortLib16550/BaseSerialPortLib16550.inf
   PlatformHookLib|MdeModulePkg/Library/BasePlatformHookLibNull/BasePlatformHookLibNull.inf
   FdtLib|EmbeddedPkg/Library/FdtLib/FdtLib.inf
+  VirtioMmioDeviceLib|OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceLib.inf
 
 [LibraryClasses.common.SEC]
   QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgSecLib.inf
@@ -744,6 +745,7 @@ [Components]
   # device tree
   #
   EmbeddedPkg/Drivers/FdtClientDxe/FdtClientDxe.inf
+  OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.inf
 
   #
   # SMBIOS Support
diff --git a/OvmfPkg/Microvm/MicrovmX64.fdf b/OvmfPkg/Microvm/MicrovmX64.fdf
index 905d23b843d3..6999ac1a87b9 100644
--- a/OvmfPkg/Microvm/MicrovmX64.fdf
+++ b/OvmfPkg/Microvm/MicrovmX64.fdf
@@ -277,6 +277,7 @@ [FV.DXEFV]
 INF  OvmfPkg/VirtioFsDxe/VirtioFsDxe.inf
 
 INF  EmbeddedPkg/Drivers/FdtClientDxe/FdtClientDxe.inf
+INF  OvmfPkg/Fdt/VirtioFdtDxe/VirtioFdtDxe.inf
 
 !if $(TOOL_CHAIN_TAG) != "XCODE5"
 INF  ShellPkg/DynamicCommand/TftpDynamicCommand/TftpDynamicCommand.inf
-- 
2.33.1



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On 12/13/21 09:16, Gerd Hoffmann wrote:
> Add virtio-mmio support (VirtioMmioDeviceLib and VirtioFdtDxe).
> 
> With this patch added and a new enough qemu version (6.2+) edk2
> will detect virtio-mmio devices, so it is possible to boot from
> storage (virtio-blk, virtio-scsi) or network (virtio-net).
> 
> https://bugzilla.tianocore.org/show_bug.cgi?id=3689
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  OvmfPkg/Microvm/MicrovmX64.dsc | 2 ++
>  OvmfPkg/Microvm/MicrovmX64.fdf | 1 +
>  2 files changed, 3 insertions(+)

Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>



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