VOID
ExecuteWbinvdInstruction (
IN AMD_CONFIG_PARAMS *StdHeader
)
{
__wbinvd ();
}
VOID
XboxMemInit(VOID)
{
UCHAR ControlRegion[TEST_SIZE];
PVOID MembaseTop = (PVOID)(64 * 1024 * 1024);
PVOID MembaseLow = (PVOID)0;
(*(PULONG)(0xfd000000 + 0x100200)) = 0x03070103 ;
(*(PULONG)(0xfd000000 + 0x100204)) = 0x11448000 ;
WRITE_PORT_ULONG((ULONG*) 0xcf8, CONFIG_CMD(0, 0, 0x84));
WRITE_PORT_ULONG((ULONG*) 0xcfc, 0x7ffffff); /* Prep hardware for 128 Mb */
InstalledMemoryMb = 64;
memset(ControlRegion, TEST_PATTERN1, TEST_SIZE);
memset(MembaseTop, TEST_PATTERN1, TEST_SIZE);
__wbinvd();
if (0 == memcmp(MembaseTop, ControlRegion, TEST_SIZE))
{
/* Looks like there is memory .. maybe a 128MB box */
memset(ControlRegion, TEST_PATTERN2, TEST_SIZE);
memset(MembaseTop, TEST_PATTERN2, TEST_SIZE);
__wbinvd();
if (0 == memcmp(MembaseTop, ControlRegion, TEST_SIZE))
{
/* Definitely looks like there is memory */
if (0 == memcmp(MembaseLow, ControlRegion, TEST_SIZE))
{
/* Hell, we find the Test-string at 0x0 too ! */
InstalledMemoryMb = 64;
}
else
{
InstalledMemoryMb = 128;
}
}
}
/* Set hardware for amount of memory detected */
WRITE_PORT_ULONG((ULONG*) 0xcf8, CONFIG_CMD(0, 0, 0x84));
WRITE_PORT_ULONG((ULONG*) 0xcfc, InstalledMemoryMb * 1024 * 1024 - 1);
AvailableMemoryMb = InstalledMemoryMb;
}
VOID
ShvVmxHandleInvd (
VOID
)
{
//
// This is the handler for the INVD instruction. Technically it may be more
// correct to use __invd instead of __wbinvd, but that intrinsic doesn't
// actually exist. Additionally, the Windows kernel (or HAL) don't contain
// any example of INVD actually ever being used. Finally, Hyper-V itself
// handles INVD by issuing WBINVD as well, so we'll just do that here too.
//
__wbinvd();
}
void dc_clean_keys()
{
dev_hook *hook;
for (hook = dc_first_hook(); hook != NULL; hook = dc_next_hook(hook))
{
if (hook->dsk_key != NULL) RtlSecureZeroMemory(hook->dsk_key, sizeof(xts_key));
if (hook->tmp_key != NULL) RtlSecureZeroMemory(hook->tmp_key, sizeof(xts_key));
if (hook->hdr_key != NULL) RtlSecureZeroMemory(hook->hdr_key, sizeof(xts_key));
RtlSecureZeroMemory(&hook->tmp_header, sizeof(dc_header));
}
// Write Back and Invalidate CPU Caches
__wbinvd();
}
