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More cleanup

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momo5502
2022-04-23 10:25:54 +02:00
parent d2f2c9dfc5
commit 5c2886fea0
2 changed files with 14 additions and 304 deletions
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src/driver/ept.cpp
+1 -19
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@@ -33,43 +33,25 @@ namespace vmx
void initialize_mtrr(mtrr_list& mtrr_data)
{
//
// Read the capabilities mask
//
ia32_mtrr_capabilities_register mtrr_capabilities{};
mtrr_capabilities.flags = __readmsr(IA32_MTRR_CAPABILITIES);
//
// Iterate over each variable MTRR
//
for (auto i = 0u; i < mtrr_capabilities.variable_range_count; i++)
{
//
// Capture the value
//
ia32_mtrr_physbase_register mtrr_base{};
ia32_mtrr_physmask_register mtrr_mask{};
mtrr_base.flags = __readmsr(IA32_MTRR_PHYSBASE0 + i * 2);
mtrr_mask.flags = __readmsr(IA32_MTRR_PHYSMASK0 + i * 2);
//
// Check if the MTRR is enabled
//
mtrr_data[i].type = static_cast<uint32_t>(mtrr_base.type);
mtrr_data[i].enabled = static_cast<uint32_t>(mtrr_mask.valid);
if (mtrr_data[i].enabled != FALSE)
{
//
// Set the base
//
mtrr_data[i].physical_address_min = mtrr_base.page_frame_number *
MTRR_PAGE_SIZE;
//
// Compute the length
//
unsigned long bit;
unsigned long bit{};
_BitScanForward64(&bit, mtrr_mask.page_frame_number * MTRR_PAGE_SIZE);
mtrr_data[i].physical_address_max = mtrr_data[i].
physical_address_min +