mirror of
https://github.com/EnderIce2/Fennix.git
synced 2025-07-02 02:49:15 +00:00
Merge remote-tracking branch 'Kernel/master'
This commit is contained in:
EnderIce2
207
Kernel/virtualization/detect.cpp
Normal file
207
Kernel/virtualization/detect.cpp
Normal file
@ -0,0 +1,207 @@
|
||||
/*
|
||||
This file is part of Fennix Kernel.
|
||||
|
||||
Fennix Kernel is free software: you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License as
|
||||
published by the Free Software Foundation, either version 3 of
|
||||
the License, or (at your option) any later version.
|
||||
|
||||
Fennix Kernel is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <vm.hpp>
|
||||
|
||||
#include <acpi.hpp>
|
||||
#include <cpu.hpp>
|
||||
#include <debug.h>
|
||||
|
||||
#include "../kernel.h"
|
||||
|
||||
bool DetectByHypervisor()
|
||||
{
|
||||
const char *Hypervisor = CPU::Hypervisor();
|
||||
if (strcmp(Hypervisor, "None") == 0)
|
||||
return false;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_VMWARE) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_XENHVM) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_MICROSOFT_HV) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_MICROSOFT_XTA) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_PARALLELS) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_KVM) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_VIRTUALBOX) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_TCG) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_BHYVE) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_ACRN) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_QNX) == 0)
|
||||
goto Yes;
|
||||
else if (strcmp(Hypervisor, x86_CPUID_VENDOR_APPLE) == 0)
|
||||
goto Yes;
|
||||
return false;
|
||||
|
||||
Yes:
|
||||
debug("Hypervisor: %s", Hypervisor);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool IsVMwareBackdoorAvailable()
|
||||
{
|
||||
struct
|
||||
{
|
||||
union
|
||||
{
|
||||
uint32_t ax;
|
||||
uint32_t magic;
|
||||
};
|
||||
union
|
||||
{
|
||||
uint32_t bx;
|
||||
size_t size;
|
||||
};
|
||||
union
|
||||
{
|
||||
uint32_t cx;
|
||||
uint16_t command;
|
||||
};
|
||||
union
|
||||
{
|
||||
uint32_t dx;
|
||||
uint16_t port;
|
||||
};
|
||||
uint32_t si;
|
||||
uint32_t di;
|
||||
} cmd{};
|
||||
|
||||
#define VMWARE_MAGIC 0x564D5868 /* hXMV */
|
||||
#define VMWARE_PORT 0x5658
|
||||
#define CMD_GETVERSION 0xA
|
||||
|
||||
cmd.bx = ~VMWARE_MAGIC;
|
||||
cmd.command = CMD_GETVERSION;
|
||||
cmd.magic = VMWARE_MAGIC;
|
||||
cmd.port = VMWARE_PORT;
|
||||
|
||||
asmv("in %%dx, %0"
|
||||
: "+a"(cmd.ax),
|
||||
"+b"(cmd.bx),
|
||||
"+c"(cmd.cx),
|
||||
"+d"(cmd.dx),
|
||||
"+S"(cmd.si),
|
||||
"+D"(cmd.di));
|
||||
|
||||
if (cmd.bx != VMWARE_MAGIC || cmd.ax == 0xFFFFFFFF)
|
||||
return false;
|
||||
|
||||
debug("VMware backdoor version: %d.%d.%d",
|
||||
cmd.ax >> 16,
|
||||
(cmd.ax >> 8) & 0xFF,
|
||||
cmd.ax & 0xFF);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool DetectByCPUID()
|
||||
{
|
||||
bool IsVM = false;
|
||||
if (strcmp(CPU::Vendor(), x86_CPUID_VENDOR_INTEL) == 0)
|
||||
{
|
||||
CPU::x86::Intel::CPUID0x00000001 cpuid00000001;
|
||||
|
||||
if (cpuid00000001.ECX.Hypervisor == 1)
|
||||
{
|
||||
debug("Intel: Hypervisor: %d",
|
||||
cpuid00000001.ECX.Hypervisor);
|
||||
IsVM = true;
|
||||
}
|
||||
}
|
||||
else if (strcmp(CPU::Vendor(), x86_CPUID_VENDOR_AMD) == 0)
|
||||
{
|
||||
CPU::x86::AMD::CPUID0x00000001 cpuid00000001;
|
||||
|
||||
if (cpuid00000001.ECX.Hypervisor == 1)
|
||||
{
|
||||
debug("AMD: Hypervisor: %d",
|
||||
cpuid00000001.ECX.Hypervisor);
|
||||
IsVM = true;
|
||||
}
|
||||
}
|
||||
return IsVM;
|
||||
}
|
||||
|
||||
bool DetectByHPET()
|
||||
{
|
||||
assert(PowerManager != nullptr);
|
||||
|
||||
void *acpi = PowerManager->GetACPI();
|
||||
if (!acpi)
|
||||
return false;
|
||||
|
||||
void *hpet = ((ACPI::ACPI *)acpi)->HPET;
|
||||
if (!hpet)
|
||||
return false;
|
||||
|
||||
ACPI::ACPI::HPETHeader *HPET = (ACPI::ACPI::HPETHeader *)hpet;
|
||||
|
||||
if (strstr((const char *)HPET->Header.OEMID, "BOCHS BXPC") != NULL)
|
||||
goto Yes;
|
||||
|
||||
if (strstr((const char *)HPET->Header.OEMID, "VBOX") != NULL)
|
||||
goto Yes;
|
||||
|
||||
if (strstr((const char *)HPET->Header.OEMID, "VMWAREVMW") != NULL)
|
||||
goto Yes;
|
||||
|
||||
return false;
|
||||
|
||||
Yes:
|
||||
debug("HPET: %s", HPET->Header.OEMID);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool IsVirtualizedEnvironment()
|
||||
{
|
||||
static bool IsVM = false;
|
||||
|
||||
static int vm_check = 0;
|
||||
if (vm_check++)
|
||||
{
|
||||
debug("Virtualized environment: %s",
|
||||
IsVM ? "Yes" : "No");
|
||||
return IsVM;
|
||||
}
|
||||
|
||||
debug("Detecting virtualized environment...");
|
||||
|
||||
if (DetectByHypervisor())
|
||||
IsVM = true;
|
||||
|
||||
if (IsVMwareBackdoorAvailable())
|
||||
IsVM = true;
|
||||
|
||||
if (DetectByCPUID())
|
||||
IsVM = true;
|
||||
|
||||
if (DetectByHPET())
|
||||
IsVM = true;
|
||||
|
||||
/* TODO: Add more detection methods */
|
||||
|
||||
debug("Virtualized environment: %s",
|
||||
IsVM ? "Yes" : "No");
|
||||
return IsVM;
|
||||
}
|
||||
Reference in New Issue
Block a user