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linux/arch/x86/include/asm
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Pavel Tatashin 6f84f8d158 xen, mm: allow deferred page initialization for xen pv domains 
Juergen Gross noticed that commit f7f99100d8 ("mm: stop zeroing memory
during allocation in vmemmap") broke XEN PV domains when deferred struct
page initialization is enabled.

This is because the xen's PagePinned() flag is getting erased from
struct pages when they are initialized later in boot.

Juergen fixed this problem by disabling deferred pages on xen pv
domains.  It is desirable, however, to have this feature available as it
reduces boot time.  This fix re-enables the feature for pv-dmains, and
fixes the problem the following way:

The fix is to delay setting PagePinned flag until struct pages for all
allocated memory are initialized, i.e.  until after free_all_bootmem().

A new x86_init.hyper op init_after_bootmem() is called to let xen know
that boot allocator is done, and hence struct pages for all the
allocated memory are now initialized.  If deferred page initialization
is enabled, the rest of struct pages are going to be initialized later
in boot once page_alloc_init_late() is called.

xen_after_bootmem() walks page table's pages and marks them pinned.

Link: http://lkml.kernel.org/r/20180226160112.24724-2-pasha.tatashin@oracle.com
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Tested-by: Juergen Gross <jgross@suse.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Mathias Krause <minipli@googlemail.com>
Cc: Jinbum Park <jinb.park7@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Jia Zhang <zhang.jia@linux.alibaba.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-11 10:28:38 -07:00
..
crypto
crypto: x86/glue_helper - rename glue_skwalk_fpu_begin()
2018-03-03 00:03:35 +08:00
e820
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fpu
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numachip
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trace
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uv
x86/platform/UV: Fix critical UV MMR address error
2018-03-28 20:19:45 +02:00
xen
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a.out-core.h
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acenv.h
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acpi.h
ACPI, x86/boot: Split out acpi_generic_reduce_hw_init() and export
2018-03-12 12:32:57 +01:00
agp.h
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alternative-asm.h
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alternative.h
x86/alternatives: Fixup alternative_call_2
2018-03-27 09:47:53 +02:00
amd_nb.h
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apb_timer.h
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apic_flat_64.h
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apic.h
x86/apic: Finish removing unused callbacks
2018-03-26 08:49:38 +02:00
apicdef.h
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apm.h
x86/speculation: Use IBRS if available before calling into firmware
2018-02-20 09:38:33 +01:00
arch_hweight.h
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archrandom.h
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asm-offsets.h
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asm-prototypes.h
Revert "x86/retpoline: Simplify vmexit_fill_RSB()"
2018-02-20 09:38:26 +01:00
asm.h
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atomic64_32.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2018-04-05 11:56:35 -07:00
atomic64_64.h
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
2018-03-12 12:15:35 +01:00
atomic.h
locking/atomic, asm-generic, x86: Add comments for atomic instrumentation
2018-03-12 12:15:35 +01:00
barrier.h
x86/cpu: Remove the CONFIG_X86_PPRO_FENCE=y quirk
2018-03-20 10:01:05 +01:00
bios_ebda.h
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bitops.h
x86/asm: Add instruction suffixes to bitops
2018-02-28 15:18:41 +01:00
boot.h
…
bootparam_utils.h
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bug.h
x86/debug: Use UD2 for WARN()
2018-02-15 01:15:50 +01:00
bugs.h
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cache.h
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cacheflush.h
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calgary.h
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ce4100.h
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checksum_32.h
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checksum_64.h
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checksum.h
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clocksource.h
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cmdline.h
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cmpxchg_32.h
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
2018-03-12 12:15:35 +01:00
cmpxchg_64.h
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
2018-03-12 12:15:35 +01:00
cmpxchg.h
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
2018-03-12 12:15:35 +01:00
compat.h
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cpu_device_id.h
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cpu_entry_area.h
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cpu.h
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cpufeature.h
x86: Remove FAST_FEATURE_TESTS
2018-03-20 10:58:03 +01:00
cpufeatures.h
x86/cpufeatures: Add Intel PCONFIG cpufeature
2018-03-12 12:09:53 +01:00
cpumask.h
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crash.h
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current.h
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debugreg.h
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delay.h
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desc_defs.h
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desc.h
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device.h
x86/dma: Use generic swiotlb_ops
2018-03-20 10:01:57 +01:00
disabled-features.h
Merge tag 'v4.15' into x86/pti, to be able to merge dependent changes
2018-01-30 15:08:27 +01:00
div64.h
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dma-direct.h
dma/direct: Handle the memory encryption bit in common code
2018-03-20 10:01:59 +01:00
dma-mapping.h
x86/dma: Remove dma_alloc_coherent_gfp_flags()
2018-03-20 10:01:58 +01:00
dma.h
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dmi.h
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dwarf2.h
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edac.h
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efi.h
x86/efi: Use efi_switch_mm() rather than manually twiddling with %cr3
2018-03-12 11:05:05 +01:00
elf.h
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emergency-restart.h
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entry_arch.h
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error-injection.h
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espfix.h
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exec.h
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export.h
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extable.h
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fb.h
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fixmap.h
x86/mm: Fix overlap of i386 CPU_ENTRY_AREA with FIX_BTMAP
2018-01-30 15:30:35 +01:00
floppy.h
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frame.h
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ftrace.h
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futex.h
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gart.h
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genapic.h
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geode.h
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hardirq.h
Drivers: hv: vmbus: Implement Direct Mode for stimer0
2018-03-06 09:57:17 -08:00
highmem.h
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hpet.h
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hugetlb.h
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hw_breakpoint.h
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hw_irq.h
x86/platform/uv/BAU: Add APIC idt entry
2018-03-28 10:40:55 +02:00
hyperv-tlfs.h
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2018-04-09 11:42:31 -07:00
hypervisor.h
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i8259.h
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ia32_unistd.h
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ia32.h
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imr.h
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inat_types.h
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inat.h
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init.h
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insn-eval.h
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insn.h
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inst.h
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intel_ds.h
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intel_mid_vrtc.h
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intel_pconfig.h
x86/pconfig: Provide defines and helper to run MKTME_KEY_PROG leaf
2018-03-12 12:10:54 +01:00
intel_pmc_ipc.h
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intel_pt.h
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intel_punit_ipc.h
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intel_rdt_sched.h
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intel_scu_ipc.h
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intel_telemetry.h
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intel-family.h
x86/cpu: Add Cannonlake to Intel family
2018-02-04 15:55:52 +02:00
intel-mid.h
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invpcid.h
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io_apic.h
x86/apic: Rename variables and functions related to x86_io_apic_ops
2018-02-17 11:47:45 +01:00
io.h
x86/cpu: Remove the CONFIG_X86_PPRO_FENCE=y quirk
2018-03-20 10:01:05 +01:00
iomap.h
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iommu_table.h
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iommu.h
x86/dma: Use DMA-direct (CONFIG_DMA_DIRECT_OPS=y)
2018-03-20 10:01:56 +01:00
iosf_mbi.h
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ipi.h
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irq_regs.h
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irq_remapping.h
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irq_vectors.h
Drivers: hv: vmbus: Implement Direct Mode for stimer0
2018-03-06 09:57:17 -08:00
irq_work.h
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irq.h
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irqdomain.h
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irqflags.h
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ist.h
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jailhouse_para.h
jailhouse: Provide detection for non-x86 systems
2018-03-08 12:30:37 +01:00
jump_label.h
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kasan.h
kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage
2018-02-06 18:32:43 -08:00
kaslr.h
x86/mm: Make virtual memory layout dynamic for CONFIG_X86_5LEVEL=y
2018-02-14 13:11:13 +01:00
kbdleds.h
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Kbuild
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kdebug.h
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kexec-bzimage64.h
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kexec.h
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kgdb.h
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kmap_types.h
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kprobes.h
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kvm_emulate.h
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kvm_guest.h
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kvm_host.h
KVM: x86: Rename interrupt.pending to interrupt.injected
2018-03-28 22:47:06 +02:00
kvm_page_track.h
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kvm_para.h
KVM: Introduce paravirtualization hints and KVM_HINTS_DEDICATED
2018-03-06 18:40:44 +01:00
kvmclock.h
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linkage.h
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livepatch.h
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local64.h
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local.h
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mach_timer.h
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mach_traps.h
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math_emu.h
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mc146818rtc.h
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mce.h
x86/mce/AMD, EDAC/mce_amd: Enumerate Reserved SMCA bank type
2018-02-21 17:00:54 +01:00
mem_encrypt.h
dma/swiotlb: Remove swiotlb_set_mem_attributes()
2018-03-20 10:01:58 +01:00
microcode_amd.h
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microcode_intel.h
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microcode.h
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-04-02 15:16:43 -07:00
misc.h
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mmconfig.h
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mmu_context.h
perf/x86: Update rdpmc_always_available static key to the modern API
2018-03-27 07:53:00 +02:00
mmu.h
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mmx.h
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mmzone_32.h
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mmzone_64.h
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mmzone.h
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module.h
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mpspec_def.h
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mpspec.h
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mpx.h
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mshyperv.h
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2018-04-09 11:42:31 -07:00
msi.h
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msidef.h
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msr-index.h
x86/msr: Add AMD Core Perf Extension MSRs
2018-03-16 22:01:17 +01:00
msr-trace.h
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msr.h
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-04-02 16:18:31 -07:00
mtrr.h
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mwait.h
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nmi.h
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nops.h
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nospec-branch.h
Merge branch 'x86/mm' into x86/dma, to pick up dependencies
2018-03-20 10:01:37 +01:00
numa_32.h
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numa.h
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olpc_ofw.h
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olpc.h
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orc_lookup.h
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orc_types.h
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page_32_types.h
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page_32.h
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page_64_types.h
x86/mm: Initialize 'page_offset_base' at boot-time
2018-02-16 10:48:47 +01:00
page_64.h
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-04-02 15:45:30 -07:00
page_types.h
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page.h
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paravirt_types.h
x86/paravirt, objtool: Annotate indirect calls
2018-02-21 09:05:03 +01:00
paravirt.h
Merge branch 'x86/pti' into x86/mm, to pick up dependencies
2018-03-12 12:10:03 +01:00
parport.h
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pat.h
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pci_64.h
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pci_x86.h
x86/jailhouse: Enable PCI mmconfig access in inmates
2018-03-08 12:30:38 +01:00
pci-direct.h
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pci-functions.h
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pci.h
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percpu.h
x86/asm: Add instruction suffixes to bitops
2018-02-28 15:18:41 +01:00
perf_event_p4.h
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perf_event.h
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pgalloc.h
x86/mm: Fold p4d page table layer at runtime
2018-02-16 10:48:48 +01:00
pgtable_32_types.h
x86/mm: Introduce 'pgtable_l5_enabled'
2018-02-14 13:11:14 +01:00
pgtable_32.h
Merge branch 'x86/pti' into x86/mm, to pick up dependencies
2018-03-12 12:10:03 +01:00
pgtable_64_types.h
x86/mm: Optimize boot-time paging mode switching cost
2018-02-21 10:19:18 +01:00
pgtable_64.h
Merge branch 'x86/pti' into x86/mm, to pick up dependencies
2018-03-12 12:10:03 +01:00
pgtable_types.h
x86/vsyscall/64: Drop "native" vsyscalls
2018-03-08 06:48:15 +01:00
pgtable-2level_types.h
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pgtable-2level.h
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pgtable-3level_types.h
mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS
2018-02-14 13:11:13 +01:00
pgtable-3level.h
x86/mm: provide pmdp_establish() helper
2018-01-31 17:18:38 -08:00
pgtable.h
Merge branch 'x86/pti' into x86/mm, to pick up dependencies
2018-03-12 12:10:03 +01:00
pkeys.h
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platform_sst_audio.h
ASoC: Intel: sst: Free streams on suspend, re-alloc on resume
2018-03-01 16:22:48 +00:00
pm-trace.h
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posix_types.h
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preempt.h
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probe_roms.h
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processor-cyrix.h
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processor-flags.h
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processor.h
x86/kvm/vmx: avoid expensive rdmsr for MSR_GS_BASE
2018-03-16 22:03:54 +01:00
prom.h
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proto.h
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pti.h
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ptrace.h
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purgatory.h
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pvclock-abi.h
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pvclock.h
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qrwlock.h
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qspinlock_paravirt.h
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qspinlock.h
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realmode.h
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reboot_fixups.h
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reboot.h
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refcount.h
x86/refcounts: Switch to UD2 for exceptions
2018-02-28 15:18:40 +01:00
required-features.h
x86/mm: Allow to boot without LA57 if CONFIG_X86_5LEVEL=y
2018-02-16 10:48:49 +01:00
rio.h
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rmwcc.h
x86/asm: Improve how GEN_*_SUFFIXED_RMWcc() specify clobbers
2018-02-20 09:33:39 +01:00
rwsem.h
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seccomp.h
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sections.h
x86/kprobes: Fix kernel crash when probing .entry_trampoline code
2018-03-09 09:58:36 +01:00
segment.h
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serial.h
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set_memory.h
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setup_arch.h
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setup.h
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shmparam.h
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sigcontext.h
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sigframe.h
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sighandling.h
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signal.h
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simd.h
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smap.h
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smp.h
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-04-02 13:38:43 -07:00
sparsemem.h
x86/mm: Make MAX_PHYSADDR_BITS and MAX_PHYSMEM_BITS dynamic
2018-02-14 13:11:15 +01:00
special_insns.h
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spinlock_types.h
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spinlock.h
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sta2x11.h
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stackprotector.h
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stacktrace.h
x86/dumpstack: Unify show_regs()
2018-03-08 12:04:59 +01:00
string_32.h
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string_64.h
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string.h
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suspend_32.h
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suspend_64.h
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suspend.h
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svm.h
KVM: SVM: Add pause filter threshold
2018-03-28 22:47:06 +02:00
swiotlb.h
x86/dma: Use generic swiotlb_ops
2018-03-20 10:01:57 +01:00
switch_to.h
…
sync_bitops.h
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sync_core.h
lockin/x86: Implement sync_core_before_usermode()
2018-02-05 21:34:57 +01:00
syscall.h
x86/asm: Move 'status' from thread_struct to thread_info
2018-01-30 15:30:36 +01:00
syscalls.h
x86: fix sys_sigreturn() return type to be long, not unsigned long
2018-04-02 20:16:13 +02:00
sysfb.h
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tce.h
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text-patching.h
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thread_info.h
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-02-04 11:45:55 -08:00
time.h
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timer.h
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timex.h
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tlb.h
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tlbbatch.h
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tlbflush.h
x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]()
2018-02-15 01:15:52 +01:00
topology.h
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trace_clock.h
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traps.h
x86/mce: Make machine check speculation protected
2018-01-19 16:31:28 +01:00
tsc.h
x86/tsc: Convert ART in nanoseconds to TSC
2018-03-16 15:14:35 +01:00
uaccess_32.h
x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec
2018-01-30 21:54:31 +01:00
uaccess_64.h
x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec
2018-01-30 21:54:31 +01:00
uaccess.h
x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec
2018-01-30 21:54:31 +01:00
umip.h
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unaligned.h
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unistd.h
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unwind_hints.h
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unwind.h
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uprobes.h
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user32.h
…
user_32.h
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user_64.h
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user.h
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vdso.h
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vga.h
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vgtod.h
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virtext.h
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vm86.h
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vmx.h
kvm/x86: fix icebp instruction handling
2018-03-20 14:58:34 -07:00
vsyscall.h
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vvar.h
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word-at-a-time.h
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x86_init.h
xen, mm: allow deferred page initialization for xen pv domains
2018-04-11 10:28:38 -07:00
xor_32.h
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xor_64.h
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xor_avx.h
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xor.h
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