Re: [edk2-devel] [PATCH v5 31/35] OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn
On 08/13/19 13:31, Anthony PERARD wrote:
> On a Xen PVH guest, none of the existing serial or console interface
> works, so we add a new one, based on XenConsoleSerialPortLib, and
> implemented via SerialDxe.
>
> That is a simple console implementation that can work on both PVH
> guest and HVM guests, even if it is rarely going to be used on HVM.
>
> Have PlatformBootManagerLib look for the new console, when running as a
> Xen guest.
>
> Since we use VENDOR_UART_DEVICE_PATH, fix its description and coding
> style.
>
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
> Signed-off-by: Anthony PERARD
> Reviewed-by: Laszlo Ersek
> ---
>
> Notes:
> v5:
> - fix typos in commit message.
Thanks for those fixes, my R-b stands.
Laszlo
> v4:
> - instead of creating a new XEN_CONSOLE_DEVICE_PATH, use the existing
> VENDOR_UART_DEVICE_PATH. And explain why VENDOR_UART_DEVICE_PATH
> changed in the commit message.
>
> v3:
> - removed PciSioSerialDxe and IsaSerialDxe from OvmfXen, since they
> would not be used, maybe, to check.
> - some coding style fix
>
> - not changed: PciSioSerialDxe: even if we add SerialDxe, we still needs
> PciSioSerialDxe to have OVMF use the emulated serial port on HVM.
>
> v2:
> - Use MdeModulePkg/Universal/SerialDxe instead of something new.
> - Have PlatformInitializeConsole() look for it by using the
> known-in-advance device path for the xen console in the
> PLATFORM_CONSOLE_CONNECT_ENTRY.
>
> OvmfPkg/OvmfXen.dsc | 4 ++
> OvmfPkg/OvmfXen.fdf | 1 +
> .../PlatformBootManagerLib.inf| 4 ++
> .../PlatformBootManagerLib/BdsPlatform.h | 1 +
> .../PlatformBootManagerLib/BdsPlatform.c | 3 +-
> .../PlatformBootManagerLib/PlatformData.c | 49 +--
> 6 files changed, 58 insertions(+), 4 deletions(-)
>
> diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
> index 54ac910d8e..e719a168f8 100644
> --- a/OvmfPkg/OvmfXen.dsc
> +++ b/OvmfPkg/OvmfXen.dsc
> @@ -586,6 +586,10 @@ [Components]
>OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
>OvmfPkg/XenBusDxe/XenBusDxe.inf
>OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
> + MdeModulePkg/Universal/SerialDxe/SerialDxe.inf {
> +
> +
> SerialPortLib|OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.inf
> + }
>MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf
>
> MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf
>MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
> diff --git a/OvmfPkg/OvmfXen.fdf b/OvmfPkg/OvmfXen.fdf
> index fa0830a324..5c1a925d6a 100644
> --- a/OvmfPkg/OvmfXen.fdf
> +++ b/OvmfPkg/OvmfXen.fdf
> @@ -312,6 +312,7 @@ [FV.DXEFV]
> INF OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
> INF OvmfPkg/XenBusDxe/XenBusDxe.inf
> INF OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
> +INF MdeModulePkg/Universal/SerialDxe/SerialDxe.inf
>
> INF MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf
> INF
> MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf
> diff --git
> a/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> b/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> index 04d614cd49..f89cce1879 100644
> --- a/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> +++ b/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> @@ -61,6 +61,10 @@ [Pcd]
>gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable
>gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
>gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
> + gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate ## CONSUMES
> + gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits ## CONSUMES
> + gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity ## CONSUMES
> + gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits ## CONSUMES
>
> [Pcd.IA32, Pcd.X64]
>gEfiMdePkgTokenSpaceGuid.PcdFSBClock
> diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
> b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
> index 49a072b400..153e215101 100644
> --- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
> +++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
> @@ -165,6 +165,7 @@ typedef struct {
> #define CONSOLE_IN BIT1
> #define STD_ERROR BIT2
> extern PLATFORM_CONSOLE_CONNECT_ENTRY gPlatformConsole[];
> +extern PLATFORM_CONSOLE_CONNECT_ENTRY gXenPlatformConsole[];
>
> //
> // Platform BDS Functions
> diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
> b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
> index 1eba304f09..70df6b841a 100644
> --- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
> +++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
> @@ -398,7 +398,8 @@ PlatformBootManagerBeforeConsole (
>//
>
[edk2-devel] [PATCH v5 31/35] OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn
On a Xen PVH guest, none of the existing serial or console interface
works, so we add a new one, based on XenConsoleSerialPortLib, and
implemented via SerialDxe.
That is a simple console implementation that can work on both PVH
guest and HVM guests, even if it is rarely going to be used on HVM.
Have PlatformBootManagerLib look for the new console, when running as a
Xen guest.
Since we use VENDOR_UART_DEVICE_PATH, fix its description and coding
style.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD
Reviewed-by: Laszlo Ersek
---
Notes:
v5:
- fix typos in commit message.
v4:
- instead of creating a new XEN_CONSOLE_DEVICE_PATH, use the existing
VENDOR_UART_DEVICE_PATH. And explain why VENDOR_UART_DEVICE_PATH
changed in the commit message.
v3:
- removed PciSioSerialDxe and IsaSerialDxe from OvmfXen, since they
would not be used, maybe, to check.
- some coding style fix
- not changed: PciSioSerialDxe: even if we add SerialDxe, we still needs
PciSioSerialDxe to have OVMF use the emulated serial port on HVM.
v2:
- Use MdeModulePkg/Universal/SerialDxe instead of something new.
- Have PlatformInitializeConsole() look for it by using the
known-in-advance device path for the xen console in the
PLATFORM_CONSOLE_CONNECT_ENTRY.
OvmfPkg/OvmfXen.dsc | 4 ++
OvmfPkg/OvmfXen.fdf | 1 +
.../PlatformBootManagerLib.inf| 4 ++
.../PlatformBootManagerLib/BdsPlatform.h | 1 +
.../PlatformBootManagerLib/BdsPlatform.c | 3 +-
.../PlatformBootManagerLib/PlatformData.c | 49 +--
6 files changed, 58 insertions(+), 4 deletions(-)
diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index 54ac910d8e..e719a168f8 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -586,6 +586,10 @@ [Components]
OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
OvmfPkg/XenBusDxe/XenBusDxe.inf
OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
+ MdeModulePkg/Universal/SerialDxe/SerialDxe.inf {
+
+
SerialPortLib|OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.inf
+ }
MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf
MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf
MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
diff --git a/OvmfPkg/OvmfXen.fdf b/OvmfPkg/OvmfXen.fdf
index fa0830a324..5c1a925d6a 100644
--- a/OvmfPkg/OvmfXen.fdf
+++ b/OvmfPkg/OvmfXen.fdf
@@ -312,6 +312,7 @@ [FV.DXEFV]
INF OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf
INF OvmfPkg/XenBusDxe/XenBusDxe.inf
INF OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
+INF MdeModulePkg/Universal/SerialDxe/SerialDxe.inf
INF MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf
INF
MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
b/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
index 04d614cd49..f89cce1879 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
+++ b/OvmfPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
@@ -61,6 +61,10 @@ [Pcd]
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity ## CONSUMES
+ gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits ## CONSUMES
[Pcd.IA32, Pcd.X64]
gEfiMdePkgTokenSpaceGuid.PcdFSBClock
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
index 49a072b400..153e215101 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
@@ -165,6 +165,7 @@ typedef struct {
#define CONSOLE_IN BIT1
#define STD_ERROR BIT2
extern PLATFORM_CONSOLE_CONNECT_ENTRY gPlatformConsole[];
+extern PLATFORM_CONSOLE_CONNECT_ENTRY gXenPlatformConsole[];
//
// Platform BDS Functions
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
index 1eba304f09..70df6b841a 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
@@ -398,7 +398,8 @@ PlatformBootManagerBeforeConsole (
//
EfiBootManagerDispatchDeferredImages ();
- PlatformInitializeConsole (gPlatformConsole);
+ PlatformInitializeConsole (
+XenDetected() ? gXenPlatformConsole : gPlatformConsole);
PcdStatus = PcdSet16S (PcdPlatformBootTimeOut,
GetFrontPageTimeoutFromQemu ());
ASSERT_RETURN_ERROR (PcdStatus);
diff --git
