mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 18:21:39 +01:00
Andrew Cooper
e5ac68a011
I was really hoping to avoid this, but its now too late in the 4.17 freeze and we still don't have working fixes. The in-Xen calculations for assistance capabilities are buggy. For the avoidance of doubt, the original intention was to be able to control every aspect of a APIC acceleration so we could comprehensively test Xen's support, as it has proved to be buggy time and time again. Even after a protracted discussion on what the new API ought to mean, attempts to apply it to the existing logic have been unsuccessful, proving that the API/ABI is too complicated for most people to reason about. This reverts most of:2ce11ce2496b2b9b3405leaving in place the non-APIC specific changes (minimal as they are). This takes us back to the behaviour of Xen 4.16 where APIC acceleration is configured on a per system basis. This work will be revisted in due course. Fixes:2ce11ce249("x86/HVM: allow per-domain usage of hardware virtualized APIC") Fixes:6b2b9b3405("x86: report Interrupt Controller Virtualization capabilities") Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Jan Beulich <jbeulich@suse.com> Release-acked-by: Henry Wang <Henry.Wang@arm.com>
116 lines
4.4 KiB
C
116 lines
4.4 KiB
C
/*
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* Copyright (C) 2012 Citrix Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; version 2.1 only. with the special
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* exception on linking described in file LICENSE.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*/
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#ifndef LIBXL_ARCH_H
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#define LIBXL_ARCH_H
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/* fill the arch specific configuration for the domain */
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_hidden
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int libxl__arch_domain_prepare_config(libxl__gc *gc,
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libxl_domain_config *d_config,
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struct xen_domctl_createdomain *config);
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/* save the arch specific configuration for the domain */
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_hidden
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int libxl__arch_domain_save_config(libxl__gc *gc,
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libxl_domain_config *d_config,
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libxl__domain_build_state *state,
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const struct xen_domctl_createdomain *config);
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/* arch specific internal domain creation function */
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_hidden
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int libxl__arch_domain_create(libxl__gc *gc,
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libxl_domain_config *d_config,
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libxl__domain_build_state *state,
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uint32_t domid);
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/* setup arch specific hardware description, i.e. DTB on ARM */
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_hidden
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int libxl__arch_domain_init_hw_description(libxl__gc *gc,
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libxl_domain_config *d_config,
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libxl__domain_build_state *state,
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struct xc_dom_image *dom);
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/* finalize arch specific hardware description. */
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_hidden
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int libxl__arch_domain_finalise_hw_description(libxl__gc *gc,
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uint32_t domid,
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libxl_domain_config *d_config,
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struct xc_dom_image *dom);
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/* perform any pending hardware initialization */
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_hidden
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int libxl__arch_build_dom_finish(libxl__gc *gc,
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libxl_domain_build_info *info,
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struct xc_dom_image *dom,
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libxl__domain_build_state *state);
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/* build vNUMA vmemrange with arch specific information */
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_hidden
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int libxl__arch_vnuma_build_vmemrange(libxl__gc *gc,
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uint32_t domid,
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libxl_domain_build_info *b_info,
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libxl__domain_build_state *state);
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/* arch specific irq map function */
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_hidden
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int libxl__arch_domain_map_irq(libxl__gc *gc, uint32_t domid, int irq);
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_hidden
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void libxl__arch_domain_create_info_setdefault(libxl__gc *gc,
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libxl_domain_create_info *c_info);
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_hidden
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int libxl__arch_domain_build_info_setdefault(libxl__gc *gc,
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libxl_domain_build_info *b_info,
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const libxl_physinfo *physinfo);
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_hidden
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int libxl__arch_passthrough_mode_setdefault(libxl__gc *gc,
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uint32_t domid /* for logging, only */,
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libxl_domain_config *d_config,
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const libxl_physinfo *physinfo);
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_hidden
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int libxl__arch_extra_memory(libxl__gc *gc,
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const libxl_domain_build_info *info,
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uint64_t *out);
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_hidden
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void libxl__arch_update_domain_config(libxl__gc *gc,
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libxl_domain_config *dst,
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const libxl_domain_config *src);
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#if defined(__i386__) || defined(__x86_64__)
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#define LAPIC_BASE_ADDRESS 0xfee00000
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#define ACPI_INFO_PHYSICAL_ADDRESS 0xfc000000
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#define EXTRA_DEFAULT_PAGING_MEM_MB 0
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int libxl__dom_load_acpi(libxl__gc *gc,
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const libxl_domain_build_info *b_info,
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struct xc_dom_image *dom);
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#else
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/*
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* 128MB extra default paging memory on Arm for extended regions. This
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* value is normally enough for domains that are not running backend.
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* See the `shadow_memory` in xl.cfg documentation for more information.
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*/
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#define EXTRA_DEFAULT_PAGING_MEM_MB 128
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#endif
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#endif
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