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DragonOS虚拟化 (#389)

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* try some ioctl flow & kvm device

* add sys ioctl

* 删掉一些debug信息

* 修改run-qemu.sh脚本，在QEMU中enable vmx

* 修改cr0,cr4,msr寄存器enable VMX operations

* enable vmx operation

* allocate memory for vmcs with bug

* allocate memory for vmcs

* cpu virt-50%

* single vcpu virt

* add vmcs fields

* CPU virt overall flow with bug

* run vmlaunch success

* run CPU virt with bug

* 成功运行non-root模式的guest

* 成功运行vmexit,进入vmx_return函数

* 成功运行vmlaunch, vmexit, vmresume

* vmexit handler with bug

* 完成vmexit cpuid handler

* fix vmresume guest状态恢复的bug

* 增加vm ioctl

* refactor kvm 50%

* refactor kvm 80%

* FIXME: kvm vmlaunch failed

* vmlaunch success

* FIXME: output error

* update guest_rsp

* cpu virt refactor

* add mmu related struct

* add usermemory region workflow

* add mem-virt workflow

* add mem-virt

* refactor code

* add vcpu ioctl set_regs

* rename hypervisor to vm & solve some deadlock bugs

* workout mem pipeline

* fix vmcs control setting bugs

* refactor segment regs initialization

* resovle conficts

* resovle conficts

* format code
This commit is contained in:
Xiaoye Zheng
2023-10-24 14:31:56 +08:00
committed by GitHub
parent 485e248761
commit 40314b30ab
45 changed files with 3652 additions and 12 deletions
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24
kernel/src/arch/x86_64/mm/mod.rs
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@ -34,6 +34,9 @@ use core::mem::{self};
use core::sync::atomic::{compiler_fence, AtomicBool, Ordering};
use super::kvm::vmx::vmcs::VmcsFields;
use super::kvm::vmx::vmx_asm_wrapper::vmx_vmread;
pub type PageMapper =
crate::mm::page::PageMapper<crate::arch::x86_64::mm::X86_64MMArch, LockedFrameAllocator>;
@ -169,12 +172,21 @@ impl MemoryManagementArch for X86_64MMArch {
}
/// @brief 获取顶级页表的物理地址
unsafe fn table(_table_kind: PageTableKind) -> PhysAddr {
let paddr: usize;
compiler_fence(Ordering::SeqCst);
asm!("mov {}, cr3", out(reg) paddr, options(nomem, nostack, preserves_flags));
compiler_fence(Ordering::SeqCst);
return PhysAddr::new(paddr);
unsafe fn table(table_kind: PageTableKind) -> PhysAddr {
match table_kind {
PageTableKind::Kernel | PageTableKind::User => {
let paddr: usize;
compiler_fence(Ordering::SeqCst);
asm!("mov {}, cr3", out(reg) paddr, options(nomem, nostack, preserves_flags));
compiler_fence(Ordering::SeqCst);
return PhysAddr::new(paddr);
}
PageTableKind::EPT => {
let eptp =
vmx_vmread(VmcsFields::CTRL_EPTP_PTR as u32).expect("Failed to read eptp");
return PhysAddr::new(eptp as usize);
}
}
}
/// @brief 设置顶级页表的物理地址到处理器中