Future/hypervisor
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More cleanup

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This commit is contained in:
momo5502
2022-04-05 18:17:54 +02:00
parent 4f2b1e79a7
commit d317a308c5
2 changed files with 22 additions and 13 deletions
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15
src/driver/hypervisor.cpp
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@ -7,6 +7,7 @@
#include "memory.hpp"
#include "thread.hpp"
#include "assembly.hpp"
#include "string.hpp"
namespace
{
@ -53,8 +54,8 @@ namespace
special_registers.debug_control = __readmsr(IA32_DEBUGCTL);
special_registers.msr_gs_base = __readmsr(IA32_GS_BASE);
special_registers.kernel_dr7 = __readdr(7);
_sgdt(&special_registers.gdtr.limit);
__sidt(&special_registers.idtr.limit);
_sgdt(&special_registers.gdtr);
__sidt(&special_registers.idtr);
_str(&special_registers.tr);
_sldt(&special_registers.ldtr);
}
@ -68,8 +69,8 @@ namespace
void restore_descriptor_tables(vmx::launch_context& launch_context)
{
__lgdt(&launch_context.special_registers.gdtr.limit);
__lidt(&launch_context.special_registers.idtr.limit);
__lgdt(&launch_context.special_registers.gdtr);
__lidt(&launch_context.special_registers.idtr);
}
vmx::state* resolve_vm_state_from_context(CONTEXT& context)
@ -1056,7 +1057,7 @@ INT32 ShvVmxLaunchOnVp(vmx::state* VpData)
// back to the caller on failure.
//
auto error_code = launch_vmx();
throw std::runtime_error("Failed to launch vmx");
throw std::runtime_error(string::va("Failed to launch vmx: %X", error_code));
}
@ -1068,7 +1069,9 @@ void hypervisor::enable_core(const uint64_t system_directory_table_base)
vm_state->launch_context.system_directory_table_base = system_directory_table_base;
capture_cpu_context(vm_state->launch_context);
if ((__readeflags() & EFLAGS_ALIGNMENT_CHECK_FLAG_FLAG) == 0)
const rflags rflags{.flags = __readeflags()};
if (!rflags.alignment_check_flag)
{
ShvVmxLaunchOnVp(vm_state);
}