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00f3efe1bd
- Similar to the hack for bootinfo32.c in userboot, define _MACHINE_ELF_WANT_32BIT in the load_elf32 file handlers in userboot. This allows userboot to load 32-bit kernels and modules. - Copy the SMAP generation code out of bootinfo64.c and into its own file so it can be shared with bootinfo32.c to pass an SMAP to the i386 kernel. - Use uint32_t instead of u_long when aligning module metadata in bootinfo32.c in userboot, as otherwise the metadata used 64-bit alignment which corrupted the layout. - Populate the basemem and extmem members of the bootinfo struct passed to 32-bit kernels. - Fix the 32-bit stack in userboot to start at the top of the stack instead of the bottom so that there is room to grow before the kernel switches to its own stack. - Push a fake return address onto the 32-bit stack in addition to the arguments normally passed to exec() in the loader. This return address is needed to convince recover_bootinfo() in the 32-bit locore code that it is being invoked from a "new" boot block. - Add a routine to libvmmapi to setup a 32-bit flat mode register state including a GDT and TSS that is able to start the i386 kernel and update bhyveload to use it when booting an i386 kernel. - Use the guest register state to determine the CPU's current instruction mode (32-bit vs 64-bit) and paging mode (flat, 32-bit, PAE, or long mode) in the instruction emulation code. Update the gla2gpa() routine used when fetching instructions to handle flat mode, 32-bit paging, and PAE paging in addition to long mode paging. Don't look for a REX prefix when the CPU is in 32-bit mode, and use the detected mode to enable the existing 32-bit mode code when decoding the mod r/m byte. Reviewed by: grehan, neel MFC after: 1 month
118 lines
5.1 KiB
C
118 lines
5.1 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VMMAPI_H_
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#define _VMMAPI_H_
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struct vmctx;
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enum x2apic_state;
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/*
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* Different styles of mapping the memory assigned to a VM into the address
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* space of the controlling process.
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*/
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enum vm_mmap_style {
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VM_MMAP_NONE, /* no mapping */
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VM_MMAP_ALL, /* fully and statically mapped */
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VM_MMAP_SPARSE, /* mappings created on-demand */
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};
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int vm_create(const char *name);
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struct vmctx *vm_open(const char *name);
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void vm_destroy(struct vmctx *ctx);
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int vm_parse_memsize(const char *optarg, size_t *memsize);
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int vm_get_memory_seg(struct vmctx *ctx, vm_paddr_t gpa, size_t *ret_len,
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int *wired);
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int vm_setup_memory(struct vmctx *ctx, size_t len, enum vm_mmap_style s);
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void *vm_map_gpa(struct vmctx *ctx, vm_paddr_t gaddr, size_t len);
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int vm_get_gpa_pmap(struct vmctx *, uint64_t gpa, uint64_t *pte, int *num);
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uint32_t vm_get_lowmem_limit(struct vmctx *ctx);
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void vm_set_lowmem_limit(struct vmctx *ctx, uint32_t limit);
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int vm_set_desc(struct vmctx *ctx, int vcpu, int reg,
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uint64_t base, uint32_t limit, uint32_t access);
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int vm_get_desc(struct vmctx *ctx, int vcpu, int reg,
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uint64_t *base, uint32_t *limit, uint32_t *access);
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int vm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val);
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int vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval);
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int vm_run(struct vmctx *ctx, int vcpu, uint64_t rip,
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struct vm_exit *ret_vmexit);
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int vm_apicid2vcpu(struct vmctx *ctx, int apicid);
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int vm_inject_event(struct vmctx *ctx, int vcpu, enum vm_event_type type,
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int vector);
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int vm_inject_event2(struct vmctx *ctx, int vcpu, enum vm_event_type type,
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int vector, int error_code);
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int vm_lapic_irq(struct vmctx *ctx, int vcpu, int vector);
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int vm_lapic_local_irq(struct vmctx *ctx, int vcpu, int vector);
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int vm_lapic_msi(struct vmctx *ctx, uint64_t addr, uint64_t msg);
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int vm_ioapic_assert_irq(struct vmctx *ctx, int irq);
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int vm_ioapic_deassert_irq(struct vmctx *ctx, int irq);
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int vm_ioapic_pulse_irq(struct vmctx *ctx, int irq);
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int vm_ioapic_pincount(struct vmctx *ctx, int *pincount);
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int vm_inject_nmi(struct vmctx *ctx, int vcpu);
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int vm_capability_name2type(const char *capname);
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const char *vm_capability_type2name(int type);
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int vm_get_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
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int *retval);
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int vm_set_capability(struct vmctx *ctx, int vcpu, enum vm_cap_type cap,
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int val);
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int vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
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int vm_unassign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
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int vm_map_pptdev_mmio(struct vmctx *ctx, int bus, int slot, int func,
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vm_paddr_t gpa, size_t len, vm_paddr_t hpa);
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int vm_setup_pptdev_msi(struct vmctx *ctx, int vcpu, int bus, int slot,
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int func, uint64_t addr, uint64_t msg, int numvec);
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int vm_setup_pptdev_msix(struct vmctx *ctx, int vcpu, int bus, int slot,
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int func, int idx, uint64_t addr, uint64_t msg,
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uint32_t vector_control);
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/*
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* Return a pointer to the statistics buffer. Note that this is not MT-safe.
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*/
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uint64_t *vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv,
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int *ret_entries);
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const char *vm_get_stat_desc(struct vmctx *ctx, int index);
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int vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *s);
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int vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state s);
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int vm_get_hpet_capabilities(struct vmctx *ctx, uint32_t *capabilities);
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/* Reset vcpu register state */
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int vcpu_reset(struct vmctx *ctx, int vcpu);
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/*
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* FreeBSD specific APIs
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*/
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int vm_setup_freebsd_registers(struct vmctx *ctx, int vcpu,
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uint64_t rip, uint64_t cr3, uint64_t gdtbase,
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uint64_t rsp);
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int vm_setup_freebsd_registers_i386(struct vmctx *vmctx, int vcpu,
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uint32_t eip, uint32_t gdtbase,
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uint32_t esp);
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void vm_setup_freebsd_gdt(uint64_t *gdtr);
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#endif /* _VMMAPI_H_ */
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