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| author | Gerd Hoffmann <kraxel@redhat.com> | 2021-09-08 11:01:17 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-10-05 10:55:39 +0000 |
| commit | 55f47d2299833f06659cde39ec3b0da151e721ba (patch) | |
| tree | 11201f26e3453ca7a55cc80e1b43f2e39f9bbd1b /OvmfPkg/Library/PlatformBootManagerLib | |
| parent | 845678598662005a95ed5e888b05a5ba6994c147 (diff) | |
| download | edk2-55f47d2299833f06659cde39ec3b0da151e721ba.tar.gz edk2-55f47d2299833f06659cde39ec3b0da151e721ba.tar.bz2 edk2-55f47d2299833f06659cde39ec3b0da151e721ba.zip | |
OvmfPkg/Microvm: wire up serial console, drop super-io
Microvm has no LPC bridge, so drop the PciSioSerialDxe driver.
Use SerialDxe instead, with ioport hardcoded to 0x3f8 aka com1 aka ttyS0.
With this tianocore boots to uefi shell prompt on the serial console.
Direct kernel boot can be used too.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3599
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Diffstat (limited to 'OvmfPkg/Library/PlatformBootManagerLib')
| -rw-r--r-- | OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c index 4ad80db757..9b21ba2bd6 100644 --- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c +++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c @@ -8,6 +8,7 @@ #include "BdsPlatform.h"
#include <Guid/RootBridgesConnectedEventGroup.h>
+#include <Guid/SerialPortLibVendor.h>
#include <Protocol/FirmwareVolume2.h>
#include <Library/PlatformBmPrintScLib.h>
#include <Library/Tcg2PhysicalPresenceLib.h>
@@ -669,6 +670,43 @@ PrepareLpcBridgeDevicePath ( return EFI_SUCCESS;
}
+typedef struct {
+ VENDOR_DEVICE_PATH Guid;
+ EFI_DEVICE_PATH_PROTOCOL End;
+} SERIAL_DEVICE_PATH;
+
+SERIAL_DEVICE_PATH serialDevicePath = {
+ {
+ { HARDWARE_DEVICE_PATH, HW_VENDOR_DP, { sizeof (VENDOR_DEVICE_PATH), 0} },
+ EDKII_SERIAL_PORT_LIB_VENDOR_GUID
+ },
+ { END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 } }
+};
+
+VOID
+PrepareMicrovmDevicePath (
+ VOID
+ )
+{
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ UINT16 HostBridgeDevId;
+
+ HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
+ if (HostBridgeDevId != MICROVM_PSEUDO_DEVICE_ID) {
+ return;
+ }
+
+ DevicePath = (EFI_DEVICE_PATH_PROTOCOL*)&serialDevicePath;
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gUartDeviceNode);
+ DevicePath = AppendDevicePathNode (DevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&gTerminalTypeDeviceNode);
+
+ EfiBootManagerUpdateConsoleVariable (ConOut, DevicePath, NULL);
+ EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);
+ EfiBootManagerUpdateConsoleVariable (ErrOut, DevicePath, NULL);
+}
+
EFI_STATUS
GetGopDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *PciDevicePath,
@@ -1029,6 +1067,8 @@ PlatformInitializeConsole ( //
VisitAllPciInstances (DetectAndPreparePlatformPciDevicePath);
+ PrepareMicrovmDevicePath ();
+
//
// Have chance to connect the platform default console,
// the platform default console is the minimum device group
|