[PATCH 4/6] ntdll: Implement NtSetInformationVirtualMemory.
Jinoh Kang
jinoh.kang.kr at gmail.com
Thu Nov 25 12:25:51 CST 2021
Signed-off-by: Jinoh Kang <jinoh.kang.kr at gmail.com>
---
configure | 6 ++++
configure.ac | 1 +
dlls/ntdll/ntdll.spec | 2 ++
dlls/ntdll/unix/loader.c | 1 +
dlls/ntdll/unix/virtual.c | 65 +++++++++++++++++++++++++++++++++++++++
include/config.h.in | 3 ++
6 files changed, 78 insertions(+)
diff --git a/configure b/configure
index ded6e71b815..d99e385120b 100755
--- a/configure
+++ b/configure
@@ -19000,6 +19000,12 @@ if test "x$ac_cv_func_mach_continuous_time" = xyes
then :
printf "%s\n" "#define HAVE_MACH_CONTINUOUS_TIME 1" >>confdefs.h
+fi
+ac_fn_c_check_func "$LINENO" "madvise" "ac_cv_func_madvise"
+if test "x$ac_cv_func_madvise" = xyes
+then :
+ printf "%s\n" "#define HAVE_MADVISE 1" >>confdefs.h
+
fi
ac_fn_c_check_func "$LINENO" "pipe2" "ac_cv_func_pipe2"
if test "x$ac_cv_func_pipe2" = xyes
diff --git a/configure.ac b/configure.ac
index 4f7c7209da9..85a6f78d427 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1942,6 +1942,7 @@ AC_CHECK_FUNCS(\
getrandom \
kqueue \
mach_continuous_time \
+ madvise \
pipe2 \
port_create \
posix_fadvise \
diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index e5a49ba1a1f..f85af7acebc 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -384,6 +384,7 @@
@ stdcall -syscall NtSetInformationProcess(long long ptr long)
@ stdcall -syscall NtSetInformationThread(long long ptr long)
@ stdcall -syscall NtSetInformationToken(long long ptr long)
+@ stdcall -syscall NtSetInformationVirtualMemory(long long ptr ptr ptr long)
@ stdcall -syscall NtSetIntervalProfile(long long)
@ stdcall -syscall NtSetIoCompletion(ptr long long long long)
@ stdcall -syscall NtSetLdtEntries(long int64 long int64)
@@ -1405,6 +1406,7 @@
@ stdcall -private -syscall ZwSetInformationProcess(long long ptr long) NtSetInformationProcess
@ stdcall -private -syscall ZwSetInformationThread(long long ptr long) NtSetInformationThread
@ stdcall -private -syscall ZwSetInformationToken(long long ptr long) NtSetInformationToken
+@ stdcall -private -syscall ZwSetInformationVirtualMemory(long long ptr ptr ptr long) NtSetInformationVirtualMemory
@ stdcall -private -syscall ZwSetIntervalProfile(long long) NtSetIntervalProfile
@ stdcall -private -syscall ZwSetIoCompletion(ptr long long long long) NtSetIoCompletion
@ stdcall -private -syscall ZwSetLdtEntries(long int64 long int64) NtSetLdtEntries
diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index f19d1d68dc7..d34f0b15d35 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -309,6 +309,7 @@ static void * const syscalls[] =
NtSetInformationProcess,
NtSetInformationThread,
NtSetInformationToken,
+ NtSetInformationVirtualMemory,
NtSetIntervalProfile,
NtSetIoCompletion,
NtSetLdtEntries,
diff --git a/dlls/ntdll/unix/virtual.c b/dlls/ntdll/unix/virtual.c
index 5873a3e2335..e348e2a77e7 100644
--- a/dlls/ntdll/unix/virtual.c
+++ b/dlls/ntdll/unix/virtual.c
@@ -4968,6 +4968,71 @@ NTSTATUS WINAPI NtAreMappedFilesTheSame(PVOID addr1, PVOID addr2)
}
+static NTSTATUS prefetch_memory( HANDLE process, ULONG_PTR count,
+ PMEMORY_RANGE_ENTRY addresses, ULONG flags )
+{
+ ULONG_PTR i;
+ PVOID base;
+ SIZE_T size;
+ static int once;
+
+ if (!once++) FIXME( "(process=%p,flags=%u) VmPrefetchInformation partial stub\n", process, flags );
+
+ if (process != NtCurrentProcess()) return STATUS_SUCCESS;
+
+ for (i = 0; i < count; i++)
+ {
+ if (!addresses[i].NumberOfBytes) return STATUS_INVALID_PARAMETER_4;
+ }
+
+ for (i = 0; i < count; i++)
+ {
+ MEMORY_RANGE_ENTRY entry;
+ memcpy(&entry, &addresses[i], sizeof(MEMORY_RANGE_ENTRY));
+
+ base = ROUND_ADDR( entry.VirtualAddress, page_mask );
+ size = ROUND_SIZE( entry.VirtualAddress, entry.NumberOfBytes );
+
+#ifdef HAVE_MADVISE
+ madvise(base, size, MADV_WILLNEED);
+#else
+ (void)base;
+ (void)size;
+#endif
+ }
+
+ return STATUS_SUCCESS;
+}
+
+/***********************************************************************
+ * NtSetInformationVirtualMemory (NTDLL.@)
+ * ZwSetInformationVirtualMemory (NTDLL.@)
+ */
+NTSTATUS WINAPI NtSetInformationVirtualMemory( HANDLE process,
+ VIRTUAL_MEMORY_INFORMATION_CLASS info_class,
+ ULONG_PTR count, PMEMORY_RANGE_ENTRY addresses,
+ PVOID ptr, ULONG size )
+{
+ TRACE("(%p, info_class=%d, %lu, %p, %p, %u)\n",
+ process, info_class, count, addresses, ptr, size);
+
+ switch (info_class)
+ {
+ case VmPrefetchInformation:
+ if (!ptr) return STATUS_INVALID_PARAMETER_5;
+ if (size != sizeof(ULONG)) return STATUS_INVALID_PARAMETER_6;
+ if (!count) return STATUS_INVALID_PARAMETER_3;
+ if (!addresses) return STATUS_ACCESS_VIOLATION;
+ return prefetch_memory( process, count, addresses, *(ULONG *)ptr );
+
+ default:
+ FIXME("(%p,info_class=%d,%lu,%p,%p,%u) Unknown information class\n",
+ process, info_class, count, addresses, ptr, size);
+ return STATUS_INVALID_PARAMETER_2;
+ }
+}
+
+
/**********************************************************************
* NtFlushInstructionCache (NTDLL.@)
*/
diff --git a/include/config.h.in b/include/config.h.in
index 0fe50e8ce7c..234c3e1c8b5 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -293,6 +293,9 @@
/* Define to 1 if you have the <mach-o/loader.h> header file. */
#undef HAVE_MACH_O_LOADER_H
+/* Define to 1 if you have the `madvise' function. */
+#undef HAVE_MADVISE
+
/* Define to 1 if you have the <Metal/Metal.h> header file. */
#undef HAVE_METAL_METAL_H
--
2.31.1
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