1*b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 29702785aSThomas Gleixner# 39702785aSThomas Gleixner# This Kconfig describes xen options 49702785aSThomas Gleixner# 59702785aSThomas Gleixner 69702785aSThomas Gleixnerconfig XEN 7d3d1c4bdSRusty Russell bool "Xen guest support" 86276a074SBorislav Petkov depends on PARAVIRT 91c7b67f7SGerd Hoffmann select PARAVIRT_CLOCK 10c5f9ee3dSH. Peter Anvin depends on X86_64 || (X86_32 && X86_PAE) 1187ffd2b9SDavid Vrabel depends on X86_LOCAL_APIC && X86_TSC 129702785aSThomas Gleixner help 139702785aSThomas Gleixner This is the Linux Xen port. Enabling this will allow the 149702785aSThomas Gleixner kernel to boot in a paravirtualized environment under the 159702785aSThomas Gleixner Xen hypervisor. 168006ec3eSJeremy Fitzhardinge 175e57f1d6SVitaly Kuznetsovconfig XEN_PV 185e57f1d6SVitaly Kuznetsov bool "Xen PV guest support" 195e57f1d6SVitaly Kuznetsov default y 205e57f1d6SVitaly Kuznetsov depends on XEN 2177ef56e4SKirill A. Shutemov # XEN_PV is not ready to work with 5-level paging. 2277ef56e4SKirill A. Shutemov # Changes to hypervisor are also required. 2377ef56e4SKirill A. Shutemov depends on !X86_5LEVEL 245e57f1d6SVitaly Kuznetsov select XEN_HAVE_PVMMU 2550a1062dSVitaly Kuznetsov select XEN_HAVE_VPMU 265e57f1d6SVitaly Kuznetsov help 275e57f1d6SVitaly Kuznetsov Support running as a Xen PV guest. 285e57f1d6SVitaly Kuznetsov 2933af7469SVitaly Kuznetsovconfig XEN_PV_SMP 3033af7469SVitaly Kuznetsov def_bool y 3133af7469SVitaly Kuznetsov depends on XEN_PV && SMP 3233af7469SVitaly Kuznetsov 336b0661a5SStefano Stabelliniconfig XEN_DOM0 345e57f1d6SVitaly Kuznetsov bool "Xen PV Dom0 support" 355e57f1d6SVitaly Kuznetsov default y 365e57f1d6SVitaly Kuznetsov depends on XEN_PV && PCI_XEN && SWIOTLB_XEN 3787ffd2b9SDavid Vrabel depends on X86_IO_APIC && ACPI && PCI 385e57f1d6SVitaly Kuznetsov help 395e57f1d6SVitaly Kuznetsov Support running as a Xen PV Dom0 guest. 406b0661a5SStefano Stabellini 41ca65f9fcSStefano Stabelliniconfig XEN_PVHVM 425e57f1d6SVitaly Kuznetsov bool "Xen PVHVM guest support" 435e57f1d6SVitaly Kuznetsov default y 44b17d0b5cSStefano Stabellini depends on XEN && PCI && X86_LOCAL_APIC 455e57f1d6SVitaly Kuznetsov help 465e57f1d6SVitaly Kuznetsov Support running as a Xen PVHVM guest. 47ca65f9fcSStefano Stabellini 48a52482d9SVitaly Kuznetsovconfig XEN_PVHVM_SMP 49a52482d9SVitaly Kuznetsov def_bool y 50a52482d9SVitaly Kuznetsov depends on XEN_PVHVM && SMP 51a52482d9SVitaly Kuznetsov 52c70727a5SJuergen Grossconfig XEN_512GB 53c70727a5SJuergen Gross bool "Limit Xen pv-domain memory to 512GB" 545e57f1d6SVitaly Kuznetsov depends on XEN_PV && X86_64 55c70727a5SJuergen Gross default y 568006ec3eSJeremy Fitzhardinge help 57c70727a5SJuergen Gross Limit paravirtualized user domains to 512GB of RAM. 58c70727a5SJuergen Gross 59c70727a5SJuergen Gross The Xen tools and crash dump analysis tools might not support 60c70727a5SJuergen Gross pv-domains with more than 512 GB of RAM. This option controls the 61c70727a5SJuergen Gross default setting of the kernel to use only up to 512 GB or more. 62c70727a5SJuergen Gross It is always possible to change the default via specifying the 63c70727a5SJuergen Gross boot parameter "xen_512gb_limit". 6493a0886eSJeremy Fitzhardinge 6593a0886eSJeremy Fitzhardingeconfig XEN_SAVE_RESTORE 6693a0886eSJeremy Fitzhardinge bool 671eb208aeSRafael J. Wysocki depends on XEN 68d419e4c0SShriram Rajagopalan select HIBERNATE_CALLBACKS 6993a0886eSJeremy Fitzhardinge default y 70994025caSJeremy Fitzhardinge 71994025caSJeremy Fitzhardingeconfig XEN_DEBUG_FS 72994025caSJeremy Fitzhardinge bool "Enable Xen debug and tuning parameters in debugfs" 73994025caSJeremy Fitzhardinge depends on XEN && DEBUG_FS 74994025caSJeremy Fitzhardinge default n 75994025caSJeremy Fitzhardinge help 76994025caSJeremy Fitzhardinge Enable statistics output and various tuning options in debugfs. 77994025caSJeremy Fitzhardinge Enabling this option may incur a significant performance overhead. 7880df4649SMaxim Uvarov 79ddc416cbSMukesh Rathorconfig XEN_PVH 80ddc416cbSMukesh Rathor bool "Support for running as a PVH guest" 817243b933SBoris Ostrovsky depends on XEN && XEN_PVHVM && ACPI 8277ef56e4SKirill A. Shutemov # Pre-built page tables are not ready to handle 5-level paging. 8377ef56e4SKirill A. Shutemov depends on !X86_5LEVEL 84ddc416cbSMukesh Rathor def_bool n 85