* Don Porter (por...@cs.unc.edu) wrote: > Signed-off-by: Don Porter <por...@cs.unc.edu> > --- > target/i386/kvm/vmcs12.h | 213 +++++++++++++++++++++++++++++++++++++++ > 1 file changed, 213 insertions(+) > create mode 100644 target/i386/kvm/vmcs12.h > > diff --git a/target/i386/kvm/vmcs12.h b/target/i386/kvm/vmcs12.h > new file mode 100644 > index 0000000000..c7b139f4db > --- /dev/null > +++ b/target/i386/kvm/vmcs12.h > @@ -0,0 +1,213 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +#ifndef QEMU_KVM_X86_VMX_VMCS12_H > +#define QEMU_KVM_X86_VMX_VMCS12_H > + > +#include <linux/kvm.h> > + > +/* XXX: Stolen from Linux with light edits, for now */ > + > +typedef uint64_t u64; > +typedef uint32_t u32; > +typedef uint16_t u16;
Hmm, it's a pity that scripts/update-linux-headers.sh can't be used for this file; I don't think there are any cases of it doing things out side linux's include? Anyway, it has a big scary sed for fixing all of the kernel types, so it's probably best to use that at least if you're copying it. Dave > +/* > + * struct vmcs12 describes the state that our guest hypervisor (L1) keeps > for a > + * single nested guest (L2), hence the name vmcs12. Any VMX implementation > has > + * a VMCS structure, and vmcs12 is our emulated VMX's VMCS. This structure is > + * stored in guest memory specified by VMPTRLD, but is opaque to the guest, > + * which must access it using VMREAD/VMWRITE/VMCLEAR instructions. > + * More than one of these structures may exist, if L1 runs multiple L2 > guests. > + * nested_vmx_run() will use the data here to build the vmcs02: a VMCS for > the > + * underlying hardware which will be used to run L2. > + * This structure is packed to ensure that its layout is identical across > + * machines (necessary for live migration). > + * > + * IMPORTANT: Changing the layout of existing fields in this structure > + * will break save/restore compatibility with older kvm releases. When > + * adding new fields, either use space in the reserved padding* arrays > + * or add the new fields to the end of the structure. > + */ > +typedef u64 natural_width; > + > + > +struct vmcs_hdr { > + u32 revision_id : 31; > + u32 shadow_vmcs : 1; > +}; > + > +struct __attribute__ ((__packed__)) vmcs12 { > + /* > + * According to the Intel spec, a VMCS region must start with the > + * following two fields. Then follow implementation-specific data. > + */ > + struct vmcs_hdr hdr; > + u32 abort; > + > + u32 launch_state; /* set to 0 by VMCLEAR, to 1 by VMLAUNCH */ > + u32 padding[7]; /* room for future expansion */ > + > + u64 io_bitmap_a; > + u64 io_bitmap_b; > + u64 msr_bitmap; > + u64 vm_exit_msr_store_addr; > + u64 vm_exit_msr_load_addr; > + u64 vm_entry_msr_load_addr; > + u64 tsc_offset; > + u64 virtual_apic_page_addr; > + u64 apic_access_addr; > + u64 posted_intr_desc_addr; > + u64 ept_pointer; > + u64 eoi_exit_bitmap0; > + u64 eoi_exit_bitmap1; > + u64 eoi_exit_bitmap2; > + u64 eoi_exit_bitmap3; > + u64 xss_exit_bitmap; > + u64 guest_physical_address; > + u64 vmcs_link_pointer; > + u64 guest_ia32_debugctl; > + u64 guest_ia32_pat; > + u64 guest_ia32_efer; > + u64 guest_ia32_perf_global_ctrl; > + u64 guest_pdptr0; > + u64 guest_pdptr1; > + u64 guest_pdptr2; > + u64 guest_pdptr3; > + u64 guest_bndcfgs; > + u64 host_ia32_pat; > + u64 host_ia32_efer; > + u64 host_ia32_perf_global_ctrl; > + u64 vmread_bitmap; > + u64 vmwrite_bitmap; > + u64 vm_function_control; > + u64 eptp_list_address; > + u64 pml_address; > + u64 encls_exiting_bitmap; > + u64 tsc_multiplier; > + u64 padding64[1]; /* room for future expansion */ > + /* > + * To allow migration of L1 (complete with its L2 guests) between > + * machines of different natural widths (32 or 64 bit), we cannot > have > + * unsigned long fields with no explicit size. We use u64 (aliased > + * natural_width) instead. Luckily, x86 is little-endian. > + */ > + natural_width cr0_guest_host_mask; > + natural_width cr4_guest_host_mask; > + natural_width cr0_read_shadow; > + natural_width cr4_read_shadow; > + /* Last remnants of cr3_target_value[0-3]. */ > + natural_width dead_space[4]; > + natural_width exit_qualification; > + natural_width guest_linear_address; > + natural_width guest_cr0; > + natural_width guest_cr3; > + natural_width guest_cr4; > + natural_width guest_es_base; > + natural_width guest_cs_base; > + natural_width guest_ss_base; > + natural_width guest_ds_base; > + natural_width guest_fs_base; > + natural_width guest_gs_base; > + natural_width guest_ldtr_base; > + natural_width guest_tr_base; > + natural_width guest_gdtr_base; > + natural_width guest_idtr_base; > + natural_width guest_dr7; > + natural_width guest_rsp; > + natural_width guest_rip; > + natural_width guest_rflags; > + natural_width guest_pending_dbg_exceptions; > + natural_width guest_sysenter_esp; > + natural_width guest_sysenter_eip; > + natural_width host_cr0; > + natural_width host_cr3; > + natural_width host_cr4; > + natural_width host_fs_base; > + natural_width host_gs_base; > + natural_width host_tr_base; > + natural_width host_gdtr_base; > + natural_width host_idtr_base; > + natural_width host_ia32_sysenter_esp; > + natural_width host_ia32_sysenter_eip; > + natural_width host_rsp; > + natural_width host_rip; > + natural_width paddingl[8]; /* room for future expansion */ > + u32 pin_based_vm_exec_control; > + u32 cpu_based_vm_exec_control; > + u32 exception_bitmap; > + u32 page_fault_error_code_mask; > + u32 page_fault_error_code_match; > + u32 cr3_target_count; > + u32 vm_exit_controls; > + u32 vm_exit_msr_store_count; > + u32 vm_exit_msr_load_count; > + u32 vm_entry_controls; > + u32 vm_entry_msr_load_count; > + u32 vm_entry_intr_info_field; > + u32 vm_entry_exception_error_code; > + u32 vm_entry_instruction_len; > + u32 tpr_threshold; > + u32 secondary_vm_exec_control; > + u32 vm_instruction_error; > + u32 vm_exit_reason; > + u32 vm_exit_intr_info; > + u32 vm_exit_intr_error_code; > + u32 idt_vectoring_info_field; > + u32 idt_vectoring_error_code; > + u32 vm_exit_instruction_len; > + u32 vmx_instruction_info; > + u32 guest_es_limit; > + u32 guest_cs_limit; > + u32 guest_ss_limit; > + u32 guest_ds_limit; > + u32 guest_fs_limit; > + u32 guest_gs_limit; > + u32 guest_ldtr_limit; > + u32 guest_tr_limit; > + u32 guest_gdtr_limit; > + u32 guest_idtr_limit; > + u32 guest_es_ar_bytes; > + u32 guest_cs_ar_bytes; > + u32 guest_ss_ar_bytes; > + u32 guest_ds_ar_bytes; > + u32 guest_fs_ar_bytes; > + u32 guest_gs_ar_bytes; > + u32 guest_ldtr_ar_bytes; > + u32 guest_tr_ar_bytes; > + u32 guest_interruptibility_info; > + u32 guest_activity_state; > + u32 guest_sysenter_cs; > + u32 host_ia32_sysenter_cs; > + u32 vmx_preemption_timer_value; > + u32 padding32[7]; /* room for future expansion */ > + u16 virtual_processor_id; > + u16 posted_intr_nv; > + u16 guest_es_selector; > + u16 guest_cs_selector; > + u16 guest_ss_selector; > + u16 guest_ds_selector; > + u16 guest_fs_selector; > + u16 guest_gs_selector; > + u16 guest_ldtr_selector; > + u16 guest_tr_selector; > + u16 guest_intr_status; > + u16 host_es_selector; > + u16 host_cs_selector; > + u16 host_ss_selector; > + u16 host_ds_selector; > + u16 host_fs_selector; > + u16 host_gs_selector; > + u16 host_tr_selector; > + u16 guest_pml_index; > +}; > + > +/* > + * VMCS12_REVISION is an arbitrary id that should be changed if the content > or > + * layout of struct vmcs12 is changed. MSR_IA32_VMX_BASIC returns this id, > and > + * VMPTRLD verifies that the VMCS region that L1 is loading contains this id. > + * > + * IMPORTANT: Changing this value will break save/restore compatibility with > + * older kvm releases. > + */ > +#define VMCS12_REVISION 0x11e57ed0 > + > +#endif > -- > 2.34.1 > -- -----Open up your eyes, open up your mind, open up your code ------- / Dr. David Alan Gilbert | Running GNU/Linux | Happy \ \ dave @ treblig.org | | In Hex / \ _________________________|_____ http://www.treblig.org |_______/