minor fix

Signed-off-by: smallkirby <ssmallkirby@gmail.com>
smallkirby · Aug 18, 2024 · d41ea0e · d41ea0e
1 parent d811046
commit d41ea0e
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/ymir/arch/x86/asm.zig b/ymir/arch/x86/asm.zig
@@ -292,8 +292,12 @@ pub const MsrFeatureControl = packed struct(u64) {
 pub const MsrVmxBasic = packed struct(u64) {
     /// VMCS revision identifier.
     vmcs_revision_id: u31,
+    /// Reserved
+    _zero: u1 = 0,
+    /// VMXON region size.
+    vmxon_region_size: u16,
     /// Reserved.
-    _reserved: u33, // TODO: VMXON region size
+    _reserved: u16,
 };
 
 pub const FlagsRegister = packed struct(u64) {

diff --git a/ymir/arch/x86/vmx.zig b/ymir/arch/x86/vmx.zig
@@ -96,7 +96,7 @@ fn debugPrintVmxonValidity() void {
     } else @panic("\t\tIA32_FEATURE_CONTROL is not locked");
 
     const vmx_basic = am.readMsrVmxBasic();
-    log.debug("\t\tVMXON region size: 0x{X}", .{(vmx_basic._reserved >> 1) & 0xFFFF});
+    log.debug("\t\tVMXON region size: 0x{X}", .{vmx_basic.vmxon_region_size});
 
     const vmx_cr0_fixed0: u32 = @truncate(am.readMsr(.vmx_cr0_fixed0));
     const vmx_cr0_fixed1: u32 = @truncate(am.readMsr(.vmx_cr0_fixed1));