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491 lines
10 KiB
491 lines
10 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _ASM_X86_KVM_H |
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#define _ASM_X86_KVM_H |
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/* |
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* KVM x86 specific structures and definitions |
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* |
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*/ |
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#include <linux/types.h> |
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#include <linux/ioctl.h> |
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#define KVM_PIO_PAGE_OFFSET 1 |
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#define KVM_COALESCED_MMIO_PAGE_OFFSET 2 |
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#define KVM_DIRTY_LOG_PAGE_OFFSET 64 |
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#define DE_VECTOR 0 |
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#define DB_VECTOR 1 |
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#define BP_VECTOR 3 |
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#define OF_VECTOR 4 |
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#define BR_VECTOR 5 |
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#define UD_VECTOR 6 |
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#define NM_VECTOR 7 |
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#define DF_VECTOR 8 |
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#define TS_VECTOR 10 |
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#define NP_VECTOR 11 |
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#define SS_VECTOR 12 |
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#define GP_VECTOR 13 |
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#define PF_VECTOR 14 |
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#define MF_VECTOR 16 |
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#define AC_VECTOR 17 |
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#define MC_VECTOR 18 |
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#define XM_VECTOR 19 |
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#define VE_VECTOR 20 |
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/* Select x86 specific features in <linux/kvm.h> */ |
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#define __KVM_HAVE_PIT |
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#define __KVM_HAVE_IOAPIC |
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#define __KVM_HAVE_IRQ_LINE |
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#define __KVM_HAVE_MSI |
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#define __KVM_HAVE_USER_NMI |
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#define __KVM_HAVE_GUEST_DEBUG |
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#define __KVM_HAVE_MSIX |
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#define __KVM_HAVE_MCE |
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#define __KVM_HAVE_PIT_STATE2 |
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#define __KVM_HAVE_XEN_HVM |
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#define __KVM_HAVE_VCPU_EVENTS |
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#define __KVM_HAVE_DEBUGREGS |
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#define __KVM_HAVE_XSAVE |
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#define __KVM_HAVE_XCRS |
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#define __KVM_HAVE_READONLY_MEM |
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/* Architectural interrupt line count. */ |
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#define KVM_NR_INTERRUPTS 256 |
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struct kvm_memory_alias { |
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__u32 slot; /* this has a different namespace than memory slots */ |
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__u32 flags; |
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__u64 guest_phys_addr; |
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__u64 memory_size; |
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__u64 target_phys_addr; |
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}; |
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/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */ |
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struct kvm_pic_state { |
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__u8 last_irr; /* edge detection */ |
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__u8 irr; /* interrupt request register */ |
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__u8 imr; /* interrupt mask register */ |
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__u8 isr; /* interrupt service register */ |
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__u8 priority_add; /* highest irq priority */ |
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__u8 irq_base; |
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__u8 read_reg_select; |
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__u8 poll; |
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__u8 special_mask; |
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__u8 init_state; |
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__u8 auto_eoi; |
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__u8 rotate_on_auto_eoi; |
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__u8 special_fully_nested_mode; |
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__u8 init4; /* true if 4 byte init */ |
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__u8 elcr; /* PIIX edge/trigger selection */ |
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__u8 elcr_mask; |
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}; |
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#define KVM_IOAPIC_NUM_PINS 24 |
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struct kvm_ioapic_state { |
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__u64 base_address; |
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__u32 ioregsel; |
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__u32 id; |
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__u32 irr; |
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__u32 pad; |
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union { |
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__u64 bits; |
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struct { |
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__u8 vector; |
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__u8 delivery_mode:3; |
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__u8 dest_mode:1; |
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__u8 delivery_status:1; |
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__u8 polarity:1; |
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__u8 remote_irr:1; |
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__u8 trig_mode:1; |
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__u8 mask:1; |
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__u8 reserve:7; |
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__u8 reserved[4]; |
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__u8 dest_id; |
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} fields; |
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} redirtbl[KVM_IOAPIC_NUM_PINS]; |
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}; |
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#define KVM_IRQCHIP_PIC_MASTER 0 |
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#define KVM_IRQCHIP_PIC_SLAVE 1 |
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#define KVM_IRQCHIP_IOAPIC 2 |
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#define KVM_NR_IRQCHIPS 3 |
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#define KVM_RUN_X86_SMM (1 << 0) |
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#define KVM_RUN_X86_BUS_LOCK (1 << 1) |
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/* for KVM_GET_REGS and KVM_SET_REGS */ |
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struct kvm_regs { |
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/* out (KVM_GET_REGS) / in (KVM_SET_REGS) */ |
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__u64 rax, rbx, rcx, rdx; |
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__u64 rsi, rdi, rsp, rbp; |
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__u64 r8, r9, r10, r11; |
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__u64 r12, r13, r14, r15; |
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__u64 rip, rflags; |
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}; |
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/* for KVM_GET_LAPIC and KVM_SET_LAPIC */ |
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#define KVM_APIC_REG_SIZE 0x400 |
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struct kvm_lapic_state { |
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char regs[KVM_APIC_REG_SIZE]; |
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}; |
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struct kvm_segment { |
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__u64 base; |
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__u32 limit; |
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__u16 selector; |
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__u8 type; |
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__u8 present, dpl, db, s, l, g, avl; |
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__u8 unusable; |
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__u8 padding; |
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}; |
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struct kvm_dtable { |
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__u64 base; |
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__u16 limit; |
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__u16 padding[3]; |
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}; |
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/* for KVM_GET_SREGS and KVM_SET_SREGS */ |
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struct kvm_sregs { |
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/* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */ |
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struct kvm_segment cs, ds, es, fs, gs, ss; |
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struct kvm_segment tr, ldt; |
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struct kvm_dtable gdt, idt; |
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__u64 cr0, cr2, cr3, cr4, cr8; |
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__u64 efer; |
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__u64 apic_base; |
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__u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64]; |
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}; |
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/* for KVM_GET_FPU and KVM_SET_FPU */ |
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struct kvm_fpu { |
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__u8 fpr[8][16]; |
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__u16 fcw; |
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__u16 fsw; |
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__u8 ftwx; /* in fxsave format */ |
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__u8 pad1; |
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__u16 last_opcode; |
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__u64 last_ip; |
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__u64 last_dp; |
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__u8 xmm[16][16]; |
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__u32 mxcsr; |
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__u32 pad2; |
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}; |
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struct kvm_msr_entry { |
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__u32 index; |
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__u32 reserved; |
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__u64 data; |
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}; |
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/* for KVM_GET_MSRS and KVM_SET_MSRS */ |
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struct kvm_msrs { |
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__u32 nmsrs; /* number of msrs in entries */ |
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__u32 pad; |
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struct kvm_msr_entry entries[0]; |
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}; |
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/* for KVM_GET_MSR_INDEX_LIST */ |
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struct kvm_msr_list { |
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__u32 nmsrs; /* number of msrs in entries */ |
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__u32 indices[0]; |
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}; |
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/* Maximum size of any access bitmap in bytes */ |
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#define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600 |
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/* for KVM_X86_SET_MSR_FILTER */ |
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struct kvm_msr_filter_range { |
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#define KVM_MSR_FILTER_READ (1 << 0) |
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#define KVM_MSR_FILTER_WRITE (1 << 1) |
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__u32 flags; |
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__u32 nmsrs; /* number of msrs in bitmap */ |
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__u32 base; /* MSR index the bitmap starts at */ |
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__u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */ |
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}; |
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#define KVM_MSR_FILTER_MAX_RANGES 16 |
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struct kvm_msr_filter { |
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#define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0) |
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#define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0) |
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__u32 flags; |
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struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES]; |
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}; |
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struct kvm_cpuid_entry { |
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__u32 function; |
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__u32 eax; |
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__u32 ebx; |
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__u32 ecx; |
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__u32 edx; |
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__u32 padding; |
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}; |
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/* for KVM_SET_CPUID */ |
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struct kvm_cpuid { |
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__u32 nent; |
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__u32 padding; |
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struct kvm_cpuid_entry entries[0]; |
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}; |
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struct kvm_cpuid_entry2 { |
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__u32 function; |
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__u32 index; |
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__u32 flags; |
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__u32 eax; |
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__u32 ebx; |
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__u32 ecx; |
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__u32 edx; |
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__u32 padding[3]; |
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}; |
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#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX (1 << 0) |
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#define KVM_CPUID_FLAG_STATEFUL_FUNC (1 << 1) |
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#define KVM_CPUID_FLAG_STATE_READ_NEXT (1 << 2) |
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/* for KVM_SET_CPUID2 */ |
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struct kvm_cpuid2 { |
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__u32 nent; |
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__u32 padding; |
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struct kvm_cpuid_entry2 entries[0]; |
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}; |
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/* for KVM_GET_PIT and KVM_SET_PIT */ |
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struct kvm_pit_channel_state { |
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__u32 count; /* can be 65536 */ |
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__u16 latched_count; |
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__u8 count_latched; |
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__u8 status_latched; |
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__u8 status; |
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__u8 read_state; |
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__u8 write_state; |
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__u8 write_latch; |
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__u8 rw_mode; |
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__u8 mode; |
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__u8 bcd; |
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__u8 gate; |
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__s64 count_load_time; |
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}; |
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struct kvm_debug_exit_arch { |
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__u32 exception; |
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__u32 pad; |
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__u64 pc; |
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__u64 dr6; |
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__u64 dr7; |
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}; |
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#define KVM_GUESTDBG_USE_SW_BP 0x00010000 |
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#define KVM_GUESTDBG_USE_HW_BP 0x00020000 |
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#define KVM_GUESTDBG_INJECT_DB 0x00040000 |
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#define KVM_GUESTDBG_INJECT_BP 0x00080000 |
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/* for KVM_SET_GUEST_DEBUG */ |
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struct kvm_guest_debug_arch { |
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__u64 debugreg[8]; |
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}; |
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struct kvm_pit_state { |
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struct kvm_pit_channel_state channels[3]; |
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}; |
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#define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001 |
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struct kvm_pit_state2 { |
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struct kvm_pit_channel_state channels[3]; |
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__u32 flags; |
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__u32 reserved[9]; |
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}; |
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struct kvm_reinject_control { |
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__u8 pit_reinject; |
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__u8 reserved[31]; |
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}; |
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/* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */ |
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#define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001 |
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#define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002 |
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#define KVM_VCPUEVENT_VALID_SHADOW 0x00000004 |
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#define KVM_VCPUEVENT_VALID_SMM 0x00000008 |
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#define KVM_VCPUEVENT_VALID_PAYLOAD 0x00000010 |
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/* Interrupt shadow states */ |
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#define KVM_X86_SHADOW_INT_MOV_SS 0x01 |
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#define KVM_X86_SHADOW_INT_STI 0x02 |
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/* for KVM_GET/SET_VCPU_EVENTS */ |
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struct kvm_vcpu_events { |
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struct { |
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__u8 injected; |
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__u8 nr; |
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__u8 has_error_code; |
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__u8 pending; |
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__u32 error_code; |
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} exception; |
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struct { |
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__u8 injected; |
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__u8 nr; |
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__u8 soft; |
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__u8 shadow; |
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} interrupt; |
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struct { |
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__u8 injected; |
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__u8 pending; |
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__u8 masked; |
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__u8 pad; |
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} nmi; |
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__u32 sipi_vector; |
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__u32 flags; |
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struct { |
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__u8 smm; |
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__u8 pending; |
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__u8 smm_inside_nmi; |
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__u8 latched_init; |
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} smi; |
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__u8 reserved[27]; |
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__u8 exception_has_payload; |
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__u64 exception_payload; |
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}; |
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/* for KVM_GET/SET_DEBUGREGS */ |
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struct kvm_debugregs { |
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__u64 db[4]; |
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__u64 dr6; |
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__u64 dr7; |
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__u64 flags; |
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__u64 reserved[9]; |
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}; |
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/* for KVM_CAP_XSAVE */ |
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struct kvm_xsave { |
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__u32 region[1024]; |
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}; |
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#define KVM_MAX_XCRS 16 |
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struct kvm_xcr { |
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__u32 xcr; |
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__u32 reserved; |
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__u64 value; |
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}; |
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struct kvm_xcrs { |
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__u32 nr_xcrs; |
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__u32 flags; |
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struct kvm_xcr xcrs[KVM_MAX_XCRS]; |
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__u64 padding[16]; |
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}; |
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#define KVM_SYNC_X86_REGS (1UL << 0) |
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#define KVM_SYNC_X86_SREGS (1UL << 1) |
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#define KVM_SYNC_X86_EVENTS (1UL << 2) |
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#define KVM_SYNC_X86_VALID_FIELDS \ |
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(KVM_SYNC_X86_REGS| \ |
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KVM_SYNC_X86_SREGS| \ |
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KVM_SYNC_X86_EVENTS) |
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/* kvm_sync_regs struct included by kvm_run struct */ |
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struct kvm_sync_regs { |
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/* Members of this structure are potentially malicious. |
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* Care must be taken by code reading, esp. interpreting, |
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* data fields from them inside KVM to prevent TOCTOU and |
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* double-fetch types of vulnerabilities. |
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*/ |
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struct kvm_regs regs; |
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struct kvm_sregs sregs; |
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struct kvm_vcpu_events events; |
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}; |
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#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0) |
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#define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1) |
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#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2) |
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#define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3) |
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#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4) |
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#define KVM_STATE_NESTED_FORMAT_VMX 0 |
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#define KVM_STATE_NESTED_FORMAT_SVM 1 |
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#define KVM_STATE_NESTED_GUEST_MODE 0x00000001 |
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#define KVM_STATE_NESTED_RUN_PENDING 0x00000002 |
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#define KVM_STATE_NESTED_EVMCS 0x00000004 |
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#define KVM_STATE_NESTED_MTF_PENDING 0x00000008 |
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#define KVM_STATE_NESTED_GIF_SET 0x00000100 |
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#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001 |
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#define KVM_STATE_NESTED_SMM_VMXON 0x00000002 |
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#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000 |
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#define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000 |
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#define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001 |
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struct kvm_vmx_nested_state_data { |
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__u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; |
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__u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; |
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}; |
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struct kvm_vmx_nested_state_hdr { |
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__u64 vmxon_pa; |
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__u64 vmcs12_pa; |
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struct { |
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__u16 flags; |
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} smm; |
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__u32 flags; |
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__u64 preemption_timer_deadline; |
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}; |
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struct kvm_svm_nested_state_data { |
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/* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */ |
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__u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE]; |
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}; |
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struct kvm_svm_nested_state_hdr { |
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__u64 vmcb_pa; |
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}; |
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/* for KVM_CAP_NESTED_STATE */ |
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struct kvm_nested_state { |
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__u16 flags; |
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__u16 format; |
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__u32 size; |
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union { |
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struct kvm_vmx_nested_state_hdr vmx; |
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struct kvm_svm_nested_state_hdr svm; |
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/* Pad the header to 128 bytes. */ |
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__u8 pad[120]; |
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} hdr; |
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/* |
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* Define data region as 0 bytes to preserve backwards-compatability |
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* to old definition of kvm_nested_state in order to avoid changing |
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* KVM_{GET,PUT}_NESTED_STATE ioctl values. |
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*/ |
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union { |
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struct kvm_vmx_nested_state_data vmx[0]; |
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struct kvm_svm_nested_state_data svm[0]; |
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} data; |
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}; |
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/* for KVM_CAP_PMU_EVENT_FILTER */ |
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struct kvm_pmu_event_filter { |
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__u32 action; |
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__u32 nevents; |
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__u32 fixed_counter_bitmap; |
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__u32 flags; |
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__u32 pad[4]; |
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__u64 events[0]; |
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}; |
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#define KVM_PMU_EVENT_ALLOW 0 |
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#define KVM_PMU_EVENT_DENY 1 |
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#endif /* _ASM_X86_KVM_H */
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