[PATCH v3 0/2] MR777: ntoskrnl: MmAllocateContiguousMemorySpecifyCache semi-stub

[Etaash Mathamsetty (＠etaash.mathamsetty)]

This should help to get the nox android emulator to run  
fixes bug https://bugs.winehq.org/show_bug.cgi?id=46760

--
  v3: Apply 1 suggestion(s) to 1 file(s)

https://gitlab.winehq.org/wine/wine/-/merge_requests/777

[PATCH v3 1/2] MmAllocateContiguousMemorySpecifyCache semi-stub

[Etaash Mathamsetty]

From: Etaash Mathamsetty

use NULL for lpAddress
---
 dlls/ntoskrnl.exe/ntoskrnl.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 031e9900544..8d97f3ae46d 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2777,8 +2777,23 @@ PVOID WINAPI MmAllocateContiguousMemorySpecifyCache( SIZE_T size,
                                                      PHYSICAL_ADDRESS BoundaryAddressMultiple,
                                                      MEMORY_CACHING_TYPE CacheType )
 {
-    FIXME(": stub\n");
-    return NULL;
+    DWORD protect = PAGE_READWRITE;
+    FIXME( ": ( %Iu %s %s %s %x ) semi-stub\n", size, wine_dbgstr_longlong(lowest_valid_address.QuadPart), 
+                                            wine_dbgstr_longlong(highest_valid_address.QuadPart), 
+                                            wine_dbgstr_longlong(BoundaryAddressMultiple.QuadPart), CacheType );
+    switch (CacheType)
+    {
+        case MmNonCached:
+            protect |= PAGE_NOCACHE;
+            break;
+        case MmWriteCombined:
+            protect |= PAGE_NOCACHE;
+            protect |= PAGE_WRITECOMBINE;
+            break;
+        default:
+            break;
+    }
+    return VirtualAlloc( NULL, size, MEM_RESERVE|MEM_COMMIT, protect );
 }

/***********************************************************************

[PATCH v3 2/2] Apply 1 suggestion(s) to 1 file(s)

[Jinoh Kang]

From: Jinoh Kang

---
 dlls/ntoskrnl.exe/ntoskrnl.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 8d97f3ae46d..86f4eccdee2 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2787,7 +2787,6 @@ PVOID WINAPI MmAllocateContiguousMemorySpecifyCache( SIZE_T size,
             protect |= PAGE_NOCACHE;
             break;
         case MmWriteCombined:
-            protect |= PAGE_NOCACHE;
             protect |= PAGE_WRITECOMBINE;
             break;
         default:

[PATCH v3 2/2] Apply 1 suggestion(s) to 1 file(s)

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=122684

Your paranoid android.

=== debian11 (64 bit WoW report) ===

ntoskrnl.exe:
ntoskrnl.c:1707: Test succeeded inside todo block: got error 997
driver_pnp.c:737: Test failed: expected IRP_MN_REMOVE_DEVICE

[Etaash Mathamsetty (＠etaash.mathamsetty)]

On Mon Sep  5 16:04:45 2022 +0000, Jinoh Kang wrote:
>             protect |= PAGE_WRITECOMBINE;
>
> `PAGE_NOCACHE` and `PAGE_WRITECOMBINE` are mutually exclusive.

fixed, thanks