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fix VMCS controls

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This commit is contained in:
Masato Imai
2025-04-22 10:21:13 +00:00
parent bce53346b0
commit 4e3e8e3813
2 changed files with 38 additions and 4 deletions
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14
src/vmm/vcpu.rs
View File

@ -12,7 +12,10 @@ use core::arch::naked_asm;
use crate::{
info,
memory::BootInfoFrameAllocator,
vmm::vmcs::{DescriptorType, EntryControls, Granularity, SegmentRights},
vmm::vmcs::{
DescriptorType, EntryControls, Granularity, PrimaryExitControls,
PrimaryProcessorBasedVmExecutionControls, SegmentRights,
},
};
use super::{
@ -68,7 +71,7 @@ impl VCpu {
pin_exec_ctrl.write();
let mut primary_exec_ctrl = PinBasedVmExecutionControls::read();
let mut primary_exec_ctrl = PrimaryProcessorBasedVmExecutionControls::read();
let reserved_bits = if basic_msr & (1 << 55) != 0 {
unsafe { rdmsr(x86::msr::IA32_VMX_TRUE_PROCBASED_CTLS) }
@ -78,6 +81,8 @@ impl VCpu {
primary_exec_ctrl.0 |= (reserved_bits & 0xFFFFFFFF) as u32;
primary_exec_ctrl.0 &= (reserved_bits >> 32) as u32;
primary_exec_ctrl.set_hlt(false);
primary_exec_ctrl.set_activate_secondary_controls(false);
primary_exec_ctrl.write();
@ -99,6 +104,7 @@ impl VCpu {
entry_ctrl.0 |= (reserved_bits & 0xFFFFFFFF) as u32;
entry_ctrl.0 &= (reserved_bits >> 32) as u32;
entry_ctrl.set_ia32e_mode_guest(true);
entry_ctrl.write();
@ -110,7 +116,7 @@ impl VCpu {
let basic_msr = unsafe { rdmsr(x86::msr::IA32_VMX_BASIC) };
let mut exit_ctrl = EntryControls::read();
let mut exit_ctrl = PrimaryExitControls::read();
let reserved_bits = if basic_msr & (1 << 55) != 0 {
unsafe { rdmsr(x86::msr::IA32_VMX_TRUE_EXIT_CTLS) }
@ -120,6 +126,8 @@ impl VCpu {
exit_ctrl.0 |= (reserved_bits & 0xFFFFFFFF) as u32;
exit_ctrl.0 &= (reserved_bits >> 32) as u32;
exit_ctrl.set_host_addr_space_size(true);
exit_ctrl.set_load_ia32_efer(true);
exit_ctrl.write();

28
src/vmm/vmcs.rs
View File

@ -171,7 +171,33 @@ impl PinBasedVmExecutionControls {
}
}
pub struct PrimaryProcessorBasedVmExecutionControls(pub u32);
bitfield! {
pub struct PrimaryProcessorBasedVmExecutionControls(u32);
impl Debug;
pub interrupt_window, set_interrupt_window: 2;
pub tsc_offsetting, set_tsc_offsetting: 3;
pub hlt, set_hlt: 7;
pub invlpg, set_invlpg: 9;
pub mwait, set_mwait: 10;
pub rdpmc, set_rdpmc: 11;
pub rdtsc, set_rdtsc: 12;
pub cr3load, set_cr3load: 15;
pub cr3store, set_cr3store: 16;
pub activate_teritary_controls, set_activate_teritary_controls: 17;
pub cr8load, set_cr8load: 19;
pub cr8store, set_cr8store: 20;
pub use_tpr_shadow, set_use_tpr_shadow: 21;
pub nmi_window, set_nmi_window: 22;
pub mov_dr, set_mov_dr: 23;
pub unconditional_io, set_unconditional_io: 24;
pub use_io_bitmap, set_use_io_bitmap: 25;
pub monitor_trap, set_monitor_trap: 27;
pub use_msr_bitmap, set_use_msr_bitmap: 28;
pub monitor, set_monitor: 29;
pub pause, set_pause: 30;
pub activate_secondary_controls, set_activate_secondary_controls: 31;
}
impl PrimaryProcessorBasedVmExecutionControls {
pub fn read() -> Self {