diff options
Diffstat (limited to 'tobba/src/x86_shared.rs')
-rw-r--r-- | tobba/src/x86_shared.rs | 409 |
1 files changed, 0 insertions, 409 deletions
diff --git a/tobba/src/x86_shared.rs b/tobba/src/x86_shared.rs deleted file mode 100644 index 4c1169f..0000000 --- a/tobba/src/x86_shared.rs +++ /dev/null @@ -1,409 +0,0 @@ -#![allow(non_upper_case_globals)] - -bitflags! { - pub flags Flags: usize { - const CarryFlag = 1 << 0, - const ParityFlag = 1 << 2, - const AdjustFlag = 1 << 4, - const ZeroFlag = 1 << 6, - const SignFlag = 1 << 7, - const TrapFlag = 1 << 8, - const InterruptFlag = 1 << 9, - const DirectionFlag = 1 << 10, - const OverflowFlag = 1 << 11, - const Iopl1 = 1 << 12, - const Iopl2 = 1 << 13, - const NestedTaskFlag = 1 << 14, - const ResumeFlag = 1 << 16, - const Virtual8086Flag = 1 << 17, - const AlignmentFlag = 1 << 18, - const VirtualInterruptFlag = 1 << 19, - const VirtualInterruptPending = 1 << 20, - const CpuIdFlag = 1 << 21 - } -} - -bitflags! { - pub flags Cr0: usize { - const ProtectedMode = 1 << 0, - const MonitorCoprocessor = 1 << 1, - const EmulateCoprocessor = 1 << 2, - const TaskSwitched = 1 << 3, - const ExtensionType = 1 << 4, - const NumericError = 1 << 5, - const WriteProtect = 1 << 16, - const AlignmentMask = 1 << 18, - const NotWriteThrough = 1 << 29, - const CacheDisable = 1 << 30, - const EnablePaging = 1 << 31 - } -} - -bitflags! { - pub flags Cr4: usize { - const EnableVme = 1 << 0, - const VirtualInterrupts = 1 << 1, - const TimeStampDisable = 1 << 2, - const DebuggingExtensions = 1 << 3, - const EnablePse = 1 << 4, - const EnablePae = 1 << 5, - const EnableMachineCheck = 1 << 6, - const EnableGlobalPages = 1 << 7, - const EnablePpmc = 1 << 8, - const EnableSse = 1 << 9, - const UnmaskedSse = 1 << 10, - const EnableVmx = 1 << 13, - const EnableSmx = 1 << 14, - const EnablePcid = 1 << 17, - const EnableOsXSave = 1 << 18, - const EnableSmep = 1 << 20, - const EnableSmap = 1 << 21 - } -} - -bitflags!( - pub flags Features: u64 { - const Fpu = 1 << 0, - const Virtual8086 = 1 << 1, - const DebugExtension = 1 << 2, - const PageSizeExtension = 1 << 3, - const TimeStampCounter = 1 << 4, - const ModelSpecificRegister = 1 << 5, - const PhysicalAddressExtension = 1 << 6, - const MachineCheckException = 1 << 7, - const Cx8 = 1 << 8, // CMPXCHG8 - const Apic = 1 << 9, - const SysEnter = 1 << 11, - const MemoryTypeRange = 1 << 12, - const PageGlobal = 1 << 13, - const MachineCheckArchitecture = 1 << 14, - const CMov = 1 << 15, - const PageAttributeTable = 1 << 16, - const PageSizeExtension36 = 1 << 17, - const ProcessorSerial = 1 << 18, - const CacheFlush = 1 << 19, - const DebugStore = 1 << 21, - const Acpi = 1 << 22, - const Mmx = 1 << 23, - const FxSave = 1 << 24, - const Sse = 1 << 25, - const Sse2 = 1 << 26, - const SelfSnoop = 1 << 27, - const HyperThreading = 1 << 28, - const ThermalMonitor = 1 << 29, - const Ia64 = 1 << 30, - const PendingBreak = 1 << 31, - - const Sse3 = 1 << (32 + 0), - const PclMulQdq = 1 << (32 + 1), // what - const DebugStore64 = 1 << (32 + 2), - const Monitor = 1 << (32 + 3), - const CplDebugStore = 1 << (32 + 4), - const Vmx = 1 << (32 + 5), - const SaferMode = 1 << (32 + 6), - const EnhancedSpeedStep = 1 << (32 + 7), - const ThermalMonitor2 = 1 << (32 + 8), - const Ssse3 = 1 << (32 + 9), - const L1ContextId = 1 << (32 + 10), - const Fma = 1 << (32 + 12), - const Cx16 = 1 << (32 + 13), // CMPXCHG16B - const Xtpr = 1 << (32 + 14), // I have no idea what this is - const PerformanceMonitor = 1 << (32 + 15), - const ProcessContextId = 1 << (32 + 17), - const DirectCache = 1 << (32 + 18), - const Sse41 = 1 << (32 + 19), - const Sse42 = 1 << (32 + 20), - const X2Apic = 1 << (32 + 21), - const MovBe = 1 << (32 + 22), - const PopulationCount = 1 << (32 + 23), - const TscDeadline = 1 << (32 + 24), - const AesNi = 1 << (32 + 25), - const XSave = 1 << (32 + 26), - const OsXSave = 1 << (32 + 27), - const Avx = 1 << (32 + 28), - const HalfPrecision = 1 << (32 + 29), - const HwRandom = 1 << (32 + 30) - } -); - -#[derive(Copy, Clone, PartialEq, Eq)] -pub enum Exception { - DivisionByZero = 0, - Debug = 1, - Nmi = 2, - Breakpoint = 3, - Overflow = 4, - Bounds = 5, - InvalidOpcode = 6, - NotAvailable = 7, - DoubleFault = 8, - CoprocessorSegment = 9, - Tss = 10, - NotPresent = 11, - StackSegment = 12, - GeneralProtection = 13, - PageFault = 14, - Fpu = 16, - Alignment = 17, - MachineCheck = 18, - Simd = 19, - Virtualization = 20, - Security = 30 -} - -impl Exception { - pub fn from_code(code: u32) -> Option<Exception> { - Some(match code { - 0 => Exception::DivisionByZero, - 1 => Exception::Debug, - 2 => Exception::Nmi, - 3 => Exception::Breakpoint, - 4 => Exception::Overflow, - 5 => Exception::Bounds, - 6 => Exception::InvalidOpcode, - 7 => Exception::NotAvailable, - 8 => Exception::DoubleFault, - 9 => Exception::CoprocessorSegment, - 10 => Exception::Tss, - 11 => Exception::NotPresent, - 12 => Exception::StackSegment, - 13 => Exception::GeneralProtection, - 14 => Exception::PageFault, - 16 => Exception::Fpu, - 17 => Exception::Alignment, - 18 => Exception::MachineCheck, - 19 => Exception::Simd, - 20 => Exception::Virtualization, - 30 => Exception::Security, - - _ => return None - }) - } -} - -#[derive(Copy, Clone, PartialEq, Eq)] -pub enum Msr { - ApicBase = 0x1B -} - -#[inline(always)] -pub fn cpuid(function: u32) -> (u32, u32, u32, u32) { - unsafe { - let (eax, ebx, ecx, edx): (u32, u32, u32, u32); - asm!("cpuid" : "={eax}"(eax), "={ebx}"(ebx), "={ecx}"(ecx), "={edx}"(edx) : "{eax}"(function)); - (eax, ebx, ecx, edx) - } -} - -#[inline(always)] -pub fn supports() -> Features { - let (_, _, feature_ecx, feature_edx) = cpuid(1); - Features { - bits: ((feature_ecx as u64) << 32) | (feature_edx as u64) - } -} - -#[inline(always)] -pub unsafe fn read_msr(msr: Msr) -> u64 { - let (r1, r2): (u32, u32); - asm!("rdmsr" : "={eax}"(r1), "={edx}"(r2) : "{ecx}"(msr as u32) :: "intel"); - r1 as u64 | ((r2 as u64) << 32) -} - -#[derive(Copy, Clone, PartialEq, Eq)] -pub enum PrivilegeLevel { - Ring0 = 0, - Ring1 = 1, - Ring2 = 2, - Ring3 = 3, -} - -#[derive(Copy, Clone, PartialEq, Eq)] -#[repr(C, packed)] -pub struct SegmentSelector { - data: u16 -} - -impl SegmentSelector { - #[inline(always)] - pub fn new(index: u16, rpl: PrivilegeLevel) -> SegmentSelector { - SegmentSelector { - data: index << 3 | rpl as u16 - } - } - - pub fn bits(&self) -> u16 { - self.data - } -} - -#[inline(always)] -pub unsafe fn set_tr(selector: SegmentSelector) { - asm!("ltr $0" :: "r"(selector.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_ss(selector: SegmentSelector) { - asm!("mov ss, $0" :: "r"(selector.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_ds(selector: SegmentSelector) { - asm!("mov ds, $0" :: "r"(selector.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_es(selector: SegmentSelector) { - asm!("mov es, $0" :: "r"(selector.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_gs(selector: SegmentSelector) { - asm!("mov gs, $0" :: "r"(selector.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_fs(selector: SegmentSelector) { - asm!("mov fs, $0" :: "r"(selector.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_cs(selector: SegmentSelector) { - asm!("push $0; - push $$1f - lret; - 1:" :: "ri"(selector.bits() as usize) :: "volatile"); -} - -#[inline(always)] -pub fn get_cr0() -> Cr0 { - unsafe { - let r: usize; - asm!("mov $0, cr0" : "=r"(r) ::: "intel"); - Cr0::from_bits_truncate(r) - } -} - -#[inline(always)] -pub fn get_cr2() -> usize { - unsafe { - let r: usize; - asm!("mov $0, cr2" : "=r"(r) ::: "intel"); - r - } -} - -#[inline(always)] -pub fn get_cr3() -> usize { - unsafe { - let r: usize; - asm!("mov $0, cr3" : "=r"(r) ::: "intel"); - r - } -} - -#[inline(always)] -pub fn get_cr4() -> Cr4 { - unsafe { - let r: usize; - asm!("mov $0, cr4" : "=r"(r) ::: "intel"); - Cr4::from_bits_truncate(r) - } -} - -#[inline(always)] -pub unsafe fn set_cr0(flags: Cr0) { - asm!("mov cr0, $0" :: "r"(flags.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_cr3(val: usize) { - asm!("mov cr3, $0" :: "r"(val) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn set_cr4(flags: Cr4) { - asm!("mov cr4, $0" :: "r"(flags.bits()) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn enable_interrupts() { - asm!("sti" :::: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn disable_interrupts() { - asm!("cli" :::: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn halt() { - asm!("hlt" :::: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn out8(port: u16, value: u8) { - asm!("out $0, $1" :: "{dx}"(port), "{al}"(value) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn out16(port: u16, value: u16) { - asm!("out $0, $1" :: "{dx}"(port), "{ax}"(value) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn out32(port: u16, value: u32) { - asm!("out $0, $1" :: "{dx}"(port), "{eax}"(value) :: "volatile", "intel"); -} - -#[inline(always)] -pub unsafe fn outs8(port: u16, buf: &[u8]) { - asm!("rep outsb dx, [esi]" :: "{ecx}"(buf.len()), "{dx}"(port), "{esi}"(buf.as_ptr()) : "ecx", "edi" : "intel"); -} - -#[inline(always)] -pub unsafe fn outs16(port: u16, buf: &[u16]) { - asm!("rep outsw dx, [esi]" :: "{ecx}"(buf.len()), "{dx}"(port), "{esi}"(buf.as_ptr()) : "ecx", "edi" : "intel"); -} - -#[inline(always)] -pub unsafe fn outs32(port: u16, buf: &[u32]) { - asm!("rep outsd dx, [esi]" :: "{ecx}"(buf.len()), "{dx}"(port), "{esi}"(buf.as_ptr()) : "ecx", "edi" : "intel"); -} - - -#[inline(always)] -pub unsafe fn in8(port: u16) -> u8 { - let r: u8; - asm!("in $0, $1" : "={al}"(r) : "{dx}"(port) :: "intel"); - r -} - -#[inline(always)] -pub unsafe fn in16(port: u16) -> u16 { - let r: u16; - asm!("in $0, $1" : "={ax}"(r) : "{dx}"(port) :: "intel"); - r -} - -#[inline(always)] -pub unsafe fn in32(port: u16) -> u32 { - let r: u32; - asm!("in $0, $1" : "={eax}"(r) : "{dx}"(port) :: "intel"); - r -} - -#[inline(always)] -pub unsafe fn ins8(port: u16, buf: &mut [u8]) { - asm!("rep insb [edi], dx" :: "{ecx}"(buf.len()), "{dx}"(port), "{edi}"(buf.as_ptr()) : "ecx", "edi" : "intel"); -} - -#[inline(always)] -pub unsafe fn ins16(port: u16, buf: &mut [u16]) { - asm!("rep insw [edi], dx" :: "{ecx}"(buf.len()), "{dx}"(port), "{edi}"(buf.as_ptr()) : "ecx", "edi" : "intel"); -} - -#[inline(always)] -pub unsafe fn ins32(port: u16, buf: &mut [u32]) { - asm!("rep insd [edi], dx" :: "{ecx}"(buf.len()), "{dx}"(port), "{edi}"(buf.as_ptr()) : "ecx", "edi" : "intel"); -} |