When running 2nd instance of WinHost.exe, below error is printed:
ERROR : Can not open Firmware Device File ../FV/FV_RECOVERY.fd...

The root cause is "RECOVERY.FD" is exclusively opened by the first
instance of WinHost.exe.

The patch changes to open "RECOVERY.FD" in shared way so that
2nd+ instance of WinHost.exe can still run successfully.

Signed-off-by: Ray Ni <[email protected]>

Signed-off-by: Ray Ni <[email protected]>
Cc: Jordan Justen <[email protected]>
Cc: Andrew Fish <[email protected]>
Cc: Zhiguang Liu <[email protected]>
Cc: Hao A Wu <[email protected]>
---
 EmulatorPkg/Win/Host/WinHost.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/EmulatorPkg/Win/Host/WinHost.c b/EmulatorPkg/Win/Host/WinHost.c
index bd7662683a..5a354d084e 100644
--- a/EmulatorPkg/Win/Host/WinHost.c
+++ b/EmulatorPkg/Win/Host/WinHost.c
@@ -269,7 +269,7 @@ Returns:
     NtFileHandle = CreateFile (
                      FileName,
                      GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE,
-                     FILE_SHARE_READ,
+                     FILE_SHARE_READ | FILE_SHARE_WRITE,
                      NULL,
                      CreationDisposition,
                      FILE_ATTRIBUTE_NORMAL,
-- 
2.21.0.windows.1


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