You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.9 KiB
61 lines
1.9 KiB
#include "vmxlaunch.hpp"
|
|
|
|
auto vmxlaunch::init_vmcs(cr3 cr3_value) -> void
|
|
{
|
|
const auto vcpu =
|
|
&vmxon::g_vmx_ctx.vcpus[
|
|
KeGetCurrentProcessorNumber()];
|
|
|
|
__vmx_vmclear(&vcpu->vmcs_phys);
|
|
__vmx_vmptrld(&vcpu->vmcs_phys);
|
|
|
|
segment_descriptor_register_64 gdt_value;
|
|
_sgdt(&gdt_value);
|
|
|
|
const auto [tr_descriptor, tr_rights, tr_limit, tr_base] =
|
|
gdt::get_info(gdt_value, segment_selector{ readtr() });
|
|
|
|
hv::segment_descriptor_addr_t tss{ &vcpu->tss };
|
|
memcpy(&vcpu->tss, reinterpret_cast<void*>(tr_base), sizeof hv::tss64);
|
|
memcpy(vcpu->gdt, reinterpret_cast<void*>(gdt_value.base_address), PAGE_SIZE);
|
|
|
|
vcpu->tss.interrupt_stack_table[idt::ist_idx::pf] =
|
|
reinterpret_cast<u64>(idt::pf_stk) + sizeof idt::pf_stk;
|
|
|
|
vcpu->tss.interrupt_stack_table[idt::ist_idx::gp] =
|
|
reinterpret_cast<u64>(idt::gp_stk) + sizeof idt::gp_stk;
|
|
|
|
vcpu->tss.interrupt_stack_table[idt::ist_idx::de] =
|
|
reinterpret_cast<u64>(idt::de_stk) + sizeof idt::de_stk;
|
|
|
|
vcpu->tss.interrupt_stack_table[idt::ist_idx::nmi] =
|
|
reinterpret_cast<u64>(idt::nmi_stk) + sizeof idt::nmi_stk;
|
|
|
|
const auto tr_idx = segment_selector{ readtr() }.idx;
|
|
vcpu->gdt[tr_idx].base_address_upper = tss.upper;
|
|
vcpu->gdt[tr_idx].base_address_high = tss.high;
|
|
vcpu->gdt[tr_idx].base_address_middle = tss.middle;
|
|
vcpu->gdt[tr_idx].base_address_low = tss.low;
|
|
|
|
vmcs::setup_host(&vmxexit_handler,
|
|
reinterpret_cast<u64>(vcpu->host_stack),
|
|
cr3_value, reinterpret_cast<u64>(vcpu->gdt));
|
|
|
|
vmcs::setup_guest();
|
|
vmcs::setup_controls();
|
|
}
|
|
|
|
auto vmxlaunch::launch() -> void
|
|
{
|
|
const auto vmlaunch_result = vmxlaunch_processor();
|
|
if (vmlaunch_result != VMX_LAUNCH_SUCCESS)
|
|
{
|
|
u64 vmxerror;
|
|
rflags flags{ vmlaunch_result };
|
|
__vmx_vmread(VMCS_VM_INSTRUCTION_ERROR, &vmxerror);
|
|
|
|
DBG_PRINT("vmxerror: %d\n", vmxerror);
|
|
DBG_PRINT("eflags.zero_flag: %d\n", flags.zero_flag);
|
|
DBG_PRINT("eflags.carry_flag: %d\n", flags.carry_flag);
|
|
}
|
|
} |