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tools/libxenguest: remove get_platform_info from xg_save_restore.h
Last user was removed with commit4ddf474e2bPreviously it was also used in migration code, which was removed with commitb15bc4345eSigned-off-by: Olaf Hering <olaf@aepfle.de> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
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Olaf Hering authored and Andrew Cooper committed
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@@ -67,7 +67,7 @@ int xc_map_domain_meminfo(xc_interface *xch, uint32_t domid,
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}
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_di.guest_width = minfo->guest_width;
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/* Get page table levels (see get_platform_info() in xg_save_restore.h */
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/* Get page table levels */
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if ( xc_version(xch, XENVER_capabilities, &xen_caps) )
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{
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PERROR("Could not get Xen capabilities (for page table levels)");
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@@ -29,66 +29,6 @@
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/* When pinning page tables at the end of restore, we also use batching. */
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#define MAX_PIN_BATCH 1024
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/*
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** Determine various platform information required for save/restore, in
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** particular:
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**
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** - the maximum MFN on this machine, used to compute the size of
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** the M2P table;
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**
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** - the starting virtual address of the the hypervisor; we use this
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** to determine which parts of guest address space(s) do and don't
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** require canonicalization during save/restore; and
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**
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** - the number of page-table levels for save/ restore. This should
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** be a property of the domain, but for the moment we just read it
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** from the hypervisor.
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**
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** - The width of a guest word (unsigned long), in bytes.
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**
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** Returns 1 on success, 0 on failure.
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*/
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static inline int get_platform_info(xc_interface *xch, uint32_t dom,
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/* OUT */ unsigned long *max_mfn,
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/* OUT */ unsigned long *hvirt_start,
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/* OUT */ unsigned int *pt_levels,
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/* OUT */ unsigned int *guest_width)
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{
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xen_capabilities_info_t xen_caps = "";
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xen_platform_parameters_t xen_params;
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if (xc_version(xch, XENVER_platform_parameters, &xen_params) != 0)
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return 0;
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if (xc_version(xch, XENVER_capabilities, &xen_caps) != 0)
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return 0;
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if (xc_maximum_ram_page(xch, max_mfn))
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return 0;
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*hvirt_start = xen_params.virt_start;
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if ( xc_domain_get_guest_width(xch, dom, guest_width) != 0)
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return 0;
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/* 64-bit tools will see the 64-bit hvirt_start, but 32-bit guests
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* will be using the compat one. */
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if ( *guest_width < sizeof (unsigned long) )
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/* XXX need to fix up a way of extracting this value from Xen if
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* XXX it becomes variable for domU */
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*hvirt_start = 0xf5800000;
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if (strstr(xen_caps, "xen-3.0-x86_64"))
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/* Depends on whether it's a compat 32-on-64 guest */
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*pt_levels = ( (*guest_width == 8) ? 4 : 3 );
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else if (strstr(xen_caps, "xen-3.0-x86_32p"))
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*pt_levels = 3;
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else
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return 0;
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return 1;
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}
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/*
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** Save/restore deal with the mfn_to_pfn (M2P) and pfn_to_mfn (P2M) tables.
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