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implemented interrupts handler & stub crash screen

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This commit is contained in:
Alex
2022-10-16 20:53:57 +03:00
parent 04757bd11c
commit b8c5c15a47
15 changed files with 978 additions and 80 deletions
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57
Core/CPU.cpp
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@ -224,41 +224,48 @@ namespace CPU
cr4.OSXMMEXCPT = 1;
}
if (!BSP)
KPrint("Enabling CPU cache.");
// Enable cpu cache but... how to use it?
cr0.NW = 0;
cr0.CD = 0;
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_VIRTUALBOX) != 0)
CPU::x64::writecr0(cr0);
debug("Enabling UMIP, SMEP & SMAP support...");
CPU::x64::cpuid(0x1, &rax, &rbx, &rcx, &rdx);
if (rdx & CPU::x64::CPUID_FEAT_RDX_UMIP)
{
debug("Enabling UMIP, SMEP & SMAP support...");
CPU::x64::cpuid(0x1, &rax, &rbx, &rcx, &rdx);
if (rdx & CPU::x64::CPUID_FEAT_RDX_UMIP)
{
if (!BSP)
KPrint("UMIP is supported.");
fixme("Not going to enable UMIP.");
// cr4.UMIP = 1;
}
if (rdx & CPU::x64::CPUID_FEAT_RDX_SMEP)
{
if (!BSP)
KPrint("SMEP is supported.");
cr4.SMEP = 1;
}
if (rdx & CPU::x64::CPUID_FEAT_RDX_SMAP)
{
if (!BSP)
KPrint("SMAP is supported.");
cr4.SMAP = 1;
}
CPU::x64::writecr4(cr4);
if (!BSP)
KPrint("UMIP is supported.");
fixme("Not going to enable UMIP.");
// cr4.UMIP = 1;
}
if (rdx & CPU::x64::CPUID_FEAT_RDX_SMEP)
{
if (!BSP)
KPrint("SMEP is supported.");
cr4.SMEP = 1;
}
if (rdx & CPU::x64::CPUID_FEAT_RDX_SMAP)
{
if (!BSP)
KPrint("SMAP is supported.");
cr4.SMAP = 1;
}
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_VIRTUALBOX) != 0 &&
strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_TCG) != 0)
CPU::x64::writecr4(cr4);
else
{
if (!BSP)
KPrint("VirtualBox detected. Not using UMIP, SMEP & SMAP");
{
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_VIRTUALBOX) != 0)
KPrint("VirtualBox detected. Not using UMIP, SMEP & SMAP");
else if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_TCG) != 0)
KPrint("QEMU (TCG) detected. Not using UMIP, SMEP & SMAP");
}
}
CPU::x64::writecr0(cr0);
debug("Enabling PAT support...");
CPU::x64::wrmsr(CPU::x64::MSR_CR_PAT, 0x6 | (0x0 << 8) | (0x1 << 16));
if (!BSP++)