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xen/pvh: Import PVH-related Xen public interfaces

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Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Boris Ostrovsky 2017-02-03 16:57:22 -05:00
parent 063334f305
commit cee2cfb7d1
3 changed files with 252 additions and 1 deletions
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12
include/xen/interface/elfnote.h
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@ -192,10 +192,20 @@
*/
#define XEN_ELFNOTE_SUPPORTED_FEATURES 17
/*
* Physical entry point into the kernel.
*
* 32bit entry point into the kernel. When requested to launch the
* guest kernel in a HVM container, Xen will use this entry point to
* launch the guest in 32bit protected mode with paging disabled.
* Ignored otherwise.
*/
#define XEN_ELFNOTE_PHYS32_ENTRY 18
/*
* The number of the highest elfnote defined.
*/
#define XEN_ELFNOTE_MAX XEN_ELFNOTE_SUPPORTED_FEATURES
#define XEN_ELFNOTE_MAX XEN_ELFNOTE_PHYS32_ENTRY
#endif /* __XEN_PUBLIC_ELFNOTE_H__ */

143
include/xen/interface/hvm/hvm_vcpu.h Normal file
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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2015, Roger Pau Monne <roger.pau@citrix.com>
*/
#ifndef __XEN_PUBLIC_HVM_HVM_VCPU_H__
#define __XEN_PUBLIC_HVM_HVM_VCPU_H__
#include "../xen.h"
struct vcpu_hvm_x86_32 {
uint32_t eax;
uint32_t ecx;
uint32_t edx;
uint32_t ebx;
uint32_t esp;
uint32_t ebp;
uint32_t esi;
uint32_t edi;
uint32_t eip;
uint32_t eflags;
uint32_t cr0;
uint32_t cr3;
uint32_t cr4;
uint32_t pad1;
/*
* EFER should only be used to set the NXE bit (if required)
* when starting a vCPU in 32bit mode with paging enabled or
* to set the LME/LMA bits in order to start the vCPU in
* compatibility mode.
*/
uint64_t efer;
uint32_t cs_base;
uint32_t ds_base;
uint32_t ss_base;
uint32_t es_base;
uint32_t tr_base;
uint32_t cs_limit;
uint32_t ds_limit;
uint32_t ss_limit;
uint32_t es_limit;
uint32_t tr_limit;
uint16_t cs_ar;
uint16_t ds_ar;
uint16_t ss_ar;
uint16_t es_ar;
uint16_t tr_ar;
uint16_t pad2[3];
};
/*
* The layout of the _ar fields of the segment registers is the
* following:
*
* Bits [0,3]: type (bits 40-43).
* Bit 4: s (descriptor type, bit 44).
* Bit [5,6]: dpl (descriptor privilege level, bits 45-46).
* Bit 7: p (segment-present, bit 47).
* Bit 8: avl (available for system software, bit 52).
* Bit 9: l (64-bit code segment, bit 53).
* Bit 10: db (meaning depends on the segment, bit 54).
* Bit 11: g (granularity, bit 55)
* Bits [12,15]: unused, must be blank.
*
* A more complete description of the meaning of this fields can be
* obtained from the Intel SDM, Volume 3, section 3.4.5.
*/
struct vcpu_hvm_x86_64 {
uint64_t rax;
uint64_t rcx;
uint64_t rdx;
uint64_t rbx;
uint64_t rsp;
uint64_t rbp;
uint64_t rsi;
uint64_t rdi;
uint64_t rip;
uint64_t rflags;
uint64_t cr0;
uint64_t cr3;
uint64_t cr4;
uint64_t efer;
/*
* Using VCPU_HVM_MODE_64B implies that the vCPU is launched
* directly in long mode, so the cached parts of the segment
* registers get set to match that environment.
*
* If the user wants to launch the vCPU in compatibility mode
* the 32-bit structure should be used instead.
*/
};
struct vcpu_hvm_context {
#define VCPU_HVM_MODE_32B 0 /* 32bit fields of the structure will be used. */
#define VCPU_HVM_MODE_64B 1 /* 64bit fields of the structure will be used. */
uint32_t mode;
uint32_t pad;
/* CPU registers. */
union {
struct vcpu_hvm_x86_32 x86_32;
struct vcpu_hvm_x86_64 x86_64;
} cpu_regs;
};
typedef struct vcpu_hvm_context vcpu_hvm_context_t;
#endif /* __XEN_PUBLIC_HVM_HVM_VCPU_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

98
include/xen/interface/hvm/start_info.h Normal file
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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2016, Citrix Systems, Inc.
*/
#ifndef __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__
#define __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__
/*
* Start of day structure passed to PVH guests and to HVM guests in %ebx.
*
* NOTE: nothing will be loaded at physical address 0, so a 0 value in any
* of the address fields should be treated as not present.
*
* 0 +----------------+
* | magic | Contains the magic value XEN_HVM_START_MAGIC_VALUE
* | | ("xEn3" with the 0x80 bit of the "E" set).
* 4 +----------------+
* | version | Version of this structure. Current version is 0. New
* | | versions are guaranteed to be backwards-compatible.
* 8 +----------------+
* | flags | SIF_xxx flags.
* 12 +----------------+
* | nr_modules | Number of modules passed to the kernel.
* 16 +----------------+
* | modlist_paddr | Physical address of an array of modules
* | | (layout of the structure below).
* 24 +----------------+
* | cmdline_paddr | Physical address of the command line,
* | | a zero-terminated ASCII string.
* 32 +----------------+
* | rsdp_paddr | Physical address of the RSDP ACPI data structure.
* 40 +----------------+
*
* The layout of each entry in the module structure is the following:
*
* 0 +----------------+
* | paddr | Physical address of the module.
* 8 +----------------+
* | size | Size of the module in bytes.
* 16 +----------------+
* | cmdline_paddr | Physical address of the command line,
* | | a zero-terminated ASCII string.
* 24 +----------------+
* | reserved |
* 32 +----------------+
*
* The address and sizes are always a 64bit little endian unsigned integer.
*
* NB: Xen on x86 will always try to place all the data below the 4GiB
* boundary.
*/
#define XEN_HVM_START_MAGIC_VALUE 0x336ec578
/*
* C representation of the x86/HVM start info layout.
*
* The canonical definition of this layout is above, this is just a way to
* represent the layout described there using C types.
*/
struct hvm_start_info {
uint32_t magic; /* Contains the magic value 0x336ec578 */
/* ("xEn3" with the 0x80 bit of the "E" set).*/
uint32_t version; /* Version of this structure. */
uint32_t flags; /* SIF_xxx flags. */
uint32_t nr_modules; /* Number of modules passed to the kernel. */
uint64_t modlist_paddr; /* Physical address of an array of */
/* hvm_modlist_entry. */
uint64_t cmdline_paddr; /* Physical address of the command line. */
uint64_t rsdp_paddr; /* Physical address of the RSDP ACPI data */
/* structure. */
};
struct hvm_modlist_entry {
uint64_t paddr; /* Physical address of the module. */
uint64_t size; /* Size of the module in bytes. */
uint64_t cmdline_paddr; /* Physical address of the command line. */
uint64_t reserved;
};
#endif /* __XEN_PUBLIC_ARCH_X86_HVM_START_INFO_H__ */