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xen: Add some Xen headers

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In order to support grub2 in Xen PVH environment some additional Xen
headers are needed as grub2 will be started in PVH mode requiring to
use several HVM hypercalls and structures.

Add the needed headers from Xen 4.10 being the first Xen version with
full (not only experimental) PVH guest support.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
This commit is contained in:
Juergen Gross 2018-12-07 13:11:29 +01:00 • committed by Daniel Kiper
parent 95db97d041
commit 9118effd1b
7 changed files with 2142 additions and 31 deletions
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104
include/xen/xen.h
View file

@ -53,17 +53,22 @@ DEFINE_XEN_GUEST_HANDLE(uint64_t);
DEFINE_XEN_GUEST_HANDLE(xen_pfn_t);
DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
/* Turn a plain number into a C unsigned (long) constant. */
/* Turn a plain number into a C unsigned (long (long)) constant. */
#define __xen_mk_uint(x) x ## U
#define __xen_mk_ulong(x) x ## UL
#ifndef __xen_mk_ullong
# define __xen_mk_ullong(x) x ## ULL
#endif
#define xen_mk_uint(x) __xen_mk_uint(x)
#define xen_mk_ulong(x) __xen_mk_ulong(x)
#define xen_mk_ullong(x) __xen_mk_ullong(x)
#else
/* In assembly code we cannot use C numeric constant suffixes. */
#define xen_mk_uint(x) x
#define xen_mk_ulong(x) x
#define xen_mk_uint(x) x
#define xen_mk_ulong(x) x
#define xen_mk_ullong(x) x
#endif
@ -115,6 +120,7 @@ DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
#define __HYPERVISOR_tmem_op 38
#define __HYPERVISOR_xc_reserved_op 39 /* reserved for XenClient */
#define __HYPERVISOR_xenpmu_op 40
#define __HYPERVISOR_dm_op 41
/* Architecture-specific hypercall definitions. */
#define __HYPERVISOR_arch_0 48
@ -501,6 +507,21 @@ DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
/* x86/PAE guests: support PDPTs above 4GB. */
#define VMASST_TYPE_pae_extended_cr3 3
/*
* x86 guests: Sane behaviour for virtual iopl
* - virtual iopl updated from do_iret() hypercalls.
* - virtual iopl reported in bounce frames.
* - guest kernels assumed to be level 0 for the purpose of iopl checks.
*/
#define VMASST_TYPE_architectural_iopl 4
/*
* All guests: activate update indicator in vcpu_runstate_info
* Enable setting the XEN_RUNSTATE_UPDATE flag in guest memory mapped
* vcpu_runstate_info during updates of the runstate information.
*/
#define VMASST_TYPE_runstate_update_flag 5
/*
* x86/64 guests: strictly hide M2P from user mode.
* This allows the guest to control respective hypervisor behavior:
@ -529,16 +550,21 @@ DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
* is useful to ensure that no mappings to the OS's own heap are accidentally
* installed. (e.g., in Linux this could cause havoc as reference counts
* aren't adjusted on the I/O-mapping code path).
* This only makes sense in MMUEXT_SET_FOREIGNDOM, but in that context can
* be specified by any calling domain.
* This only makes sense as HYPERVISOR_mmu_update()'s and
* HYPERVISOR_update_va_mapping_otherdomain()'s "foreigndom" argument. For
* HYPERVISOR_mmu_update() context it can be specified by any calling domain,
* otherwise it's only permitted if the caller is privileged.
*/
#define DOMID_IO xen_mk_uint(0x7FF1)
/*
* DOMID_XEN is used to allow privileged domains to map restricted parts of
* Xen's heap space (e.g., the machine_to_phys table).
* This only makes sense in MMUEXT_SET_FOREIGNDOM, and is only permitted if
* the caller is privileged.
* This only makes sense as
* - HYPERVISOR_mmu_update()'s, HYPERVISOR_mmuext_op()'s, or
* HYPERVISOR_update_va_mapping_otherdomain()'s "foreigndom" argument,
* - with XENMAPSPACE_gmfn_foreign,
* and is only permitted if the caller is privileged.
*/
#define DOMID_XEN xen_mk_uint(0x7FF2)
@ -614,10 +640,18 @@ struct vcpu_time_info {
*/
uint32_t tsc_to_system_mul;
int8_t tsc_shift;
#if __XEN_INTERFACE_VERSION__ > 0x040600
uint8_t flags;
uint8_t pad1[2];
#else
int8_t pad1[3];
#endif
}; /* 32 bytes */
typedef struct vcpu_time_info vcpu_time_info_t;
#define XEN_PVCLOCK_TSC_STABLE_BIT (1 << 0)
#define XEN_PVCLOCK_GUEST_STOPPED (1 << 1)
struct vcpu_info {
/*
* 'evtchn_upcall_pending' is written non-zero by Xen to indicate
@ -736,7 +770,7 @@ typedef struct shared_info shared_info_t;
* (may be omitted)
* c. list of allocated page frames [mfn_list, nr_pages]
* (unless relocated due to XEN_ELFNOTE_INIT_P2M)
* d. start_info_t structure [register ESI (x86)]
* d. start_info_t structure [register rSI (x86)]
* in case of dom0 this page contains the console info, too
* e. unless dom0: xenstore ring page
* f. unless dom0: console ring page
@ -797,29 +831,6 @@ struct start_info {
};
typedef struct start_info start_info_t;
/*
* Start of day structure passed to PVH 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.
*/
struct hvm_start_info {
#define HVM_START_MAGIC_VALUE 0x336ec578
uint32_t magic; /* Contains the magic value 0x336ec578 */
/* ("xEn3" with the 0x80 bit of the "E" set).*/
uint32_t flags; /* SIF_xxx flags. */
uint32_t cmdline_paddr; /* Physical address of the command line. */
uint32_t nr_modules; /* Number of modules passed to the kernel. */
uint32_t modlist_paddr; /* Physical address of an array of */
/* hvm_modlist_entry. */
};
struct hvm_modlist_entry {
uint32_t paddr; /* Physical address of the module. */
uint32_t size; /* Size of the module in bytes. */
};
/* New console union for dom0 introduced in 0x00030203. */
#if __XEN_INTERFACE_VERSION__ < 0x00030203
#define console_mfn console.domU.mfn
@ -919,6 +930,37 @@ __DEFINE_XEN_GUEST_HANDLE(uint16, uint16_t);
__DEFINE_XEN_GUEST_HANDLE(uint32, uint32_t);
__DEFINE_XEN_GUEST_HANDLE(uint64, uint64_t);
typedef struct {
uint8_t a[16];
} xen_uuid_t;
/*
* XEN_DEFINE_UUID(0x00112233, 0x4455, 0x6677, 0x8899,
* 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff)
* will construct UUID 00112233-4455-6677-8899-aabbccddeeff presented as
* {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
* 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff};
*
* NB: This is compatible with Linux kernel and with libuuid, but it is not
* compatible with Microsoft, as they use mixed-endian encoding (some
* components are little-endian, some are big-endian).
*/
#define XEN_DEFINE_UUID_(a, b, c, d, e1, e2, e3, e4, e5, e6) \
{{((a) >> 24) & 0xFF, ((a) >> 16) & 0xFF, \
((a) >> 8) & 0xFF, ((a) >> 0) & 0xFF, \
((b) >> 8) & 0xFF, ((b) >> 0) & 0xFF, \
((c) >> 8) & 0xFF, ((c) >> 0) & 0xFF, \
((d) >> 8) & 0xFF, ((d) >> 0) & 0xFF, \
e1, e2, e3, e4, e5, e6}}
#if defined(__STDC_VERSION__) ? __STDC_VERSION__ >= 199901L : defined(__GNUC__)
#define XEN_DEFINE_UUID(a, b, c, d, e1, e2, e3, e4, e5, e6) \
((xen_uuid_t)XEN_DEFINE_UUID_(a, b, c, d, e1, e2, e3, e4, e5, e6))
#else
#define XEN_DEFINE_UUID(a, b, c, d, e1, e2, e3, e4, e5, e6) \
XEN_DEFINE_UUID_(a, b, c, d, e1, e2, e3, e4, e5, e6)
#endif /* __STDC_VERSION__ / __GNUC__ */
#endif /* !__ASSEMBLY__ */
/* Default definitions for macros used by domctl/sysctl. */