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Wanpeng Li a4429e53c9 KVM: Introduce paravirtualization hints and KVM_HINTS_DEDICATED 
This patch introduces kvm_para_has_hint() to query for hints about
the configuration of the guests.  The first hint KVM_HINTS_DEDICATED,
is set if the guest has dedicated physical CPUs for each vCPU (i.e.
pinning and no over-commitment).  This allows optimizing spinlocks
and tells the guest to avoid PV TLB flush.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-06 18:40:44 +01:00
..
acpi
ACPI: SPCR: Make SPCR available to x86
2018-02-07 11:39:58 +01:00
apic
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-02-26 09:34:21 -08:00
cpu
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-02-26 09:34:21 -08:00
fpu
Merge commit 'upstream-x86-entry' into WIP.x86/mm
2017-12-17 12:58:53 +01:00
kprobes
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-21 10:48:35 -08:00
.gitignore
…
alternative.c
x86/paravirt: Remove 'noreplace-paravirt' cmdline option
2018-01-31 10:37:45 +01:00
amd_gart_64.c
dma-mapping: move swiotlb arch helpers to a new header
2018-01-10 16:40:54 +01:00
amd_nb.c
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-15 01:15:52 +01:00
apb_timer.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
aperture_64.c
x86/gart: Exclude GART aperture from vmcore
2018-01-11 15:09:24 +01:00
apm_32.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
asm-offsets_32.c
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-15 01:15:52 +01:00
asm-offsets_64.c
x86/entry/64: Separate cpu_current_top_of_stack from TSS.sp0
2017-12-17 13:59:56 +01:00
asm-offsets.c
x86/mm: Use/Fix PCID to optimize user/kernel switches
2017-12-23 21:13:00 +01:00
audit_64.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bootflag.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
check.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cpuid.c
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-12 19:25:04 -08:00
crash_dump_32.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crash_dump_64.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crash.c
resource: Fix resource_size.cocci warnings
2017-11-07 20:44:56 +01:00
devicetree.c
x86: remove arch specific early_init_dt_alloc_memory_arch
2018-01-30 11:17:37 -06:00
doublefault.c
x86/entry: Fix assumptions that the HW TSS is at the beginning of cpu_tss
2017-12-17 13:59:55 +01:00
dumpstack_32.c
x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack
2017-12-22 20:13:02 +01:00
dumpstack_64.c
x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack
2017-12-22 20:13:02 +01:00
dumpstack.c
x86/dumpstack: Avoid uninitlized variable
2018-02-02 23:33:50 +01:00
e820.c
x86/boot/e820: Add support to determine the E820 type of an address
2017-07-18 11:38:01 +02:00
early_printk.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
early-quirks.c
x86/gpu: add CFL to early quirks
2017-12-15 13:18:00 -08:00
ebda.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
eisa.c
x86/eisa: Add missing include
2017-08-31 21:34:48 +02:00
espfix_64.c
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2017-11-15 18:21:04 -08:00
ftrace_32.S
x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
2018-01-12 00:14:30 +01:00
ftrace_64.S
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-28 12:19:23 -08:00
ftrace.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
head32.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
head64.c
x86/mm: Encrypt the initrd earlier for BSP microcode update
2018-01-16 01:50:59 +01:00
head_32.S
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-15 01:15:52 +01:00
head_64.S
x86/boot, objtool: Annotate indirect jump in secondary_startup_64()
2018-02-21 09:05:03 +01:00
hpet.c
x86/hpet: Cure interface abuse in the resume path
2017-08-01 13:02:37 +02:00
hw_breakpoint.c
…
i8237.c
…
i8253.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
i8259.c
Merge branch 'linus' into x86/apic, to resolve conflicts
2017-11-07 10:51:10 +01:00
idt.c
x86/idt: Mark IDT tables __initconst
2018-01-14 20:09:45 +01:00
io_delay.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ioport.c
x86/entry/64: Make cpu_entry_area.tss read-only
2017-12-17 14:27:52 +01:00
irq_32.c
x86/retpoline/irq32: Convert assembler indirect jumps
2018-01-12 00:14:32 +01:00
irq_64.c
x86/irq/64: Print the offending IP in the stack overflow warning
2017-12-17 13:59:53 +01:00
irq_work.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
irq.c
x86/irq: Count Hyper-V reenlightenment interrupts
2018-01-30 23:55:33 +01:00
irqinit.c
Revert "x86/apic: Remove init_bsp_APIC()"
2018-01-14 12:14:51 +01:00
itmt.c
x86/headers: Remove duplicate #includes
2017-12-12 11:32:24 +01:00
jailhouse.c
x86/jailhouse: Respect pci=lastbus command line settings
2018-01-20 08:15:44 +01:00
jump_label.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
kdebugfs.c
x86, mpparse, x86/acpi, x86/PCI, x86/dmi, SFI: Use memremap() for RAM mappings
2017-07-18 11:37:58 +02:00
kexec-bzimage64.c
x86/boot/e820: Rename the e820_table_firmware to e820_table_kexec
2017-07-05 10:09:02 +02:00
kgdb.c
sched/x86: Add 'struct inactive_task_frame' to better document the sleeping task stack frame
2016-08-24 12:27:41 +02:00
ksysfs.c
x86/sysfs: Fix off-by-one error in loop termination
2017-09-25 09:36:16 +02:00
kvm.c
KVM: Introduce paravirtualization hints and KVM_HINTS_DEDICATED
2018-03-06 18:40:44 +01:00
kvmclock.c
xen: features and fixes for v4.15-rc1
2017-11-16 13:06:27 -08:00
ldt.c
x86/ldt: Make LDT pgtable free conditional
2017-12-31 16:55:09 +01:00
livepatch.c
livepatch/x86: apply alternatives and paravirt patches after relocations
2016-08-18 23:41:55 +02:00
machine_kexec_32.c
x86-32: Fix kexec with stack canary (CONFIG_CC_STACKPROTECTOR)
2017-12-27 20:59:41 +01:00
machine_kexec_64.c
x86: Treat R_X86_64_PLT32 as R_X86_64_PC32
2018-02-22 09:01:10 -08:00
Makefile
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-29 18:17:39 -08:00
mmconf-fam10h_64.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
module.c
x86: Treat R_X86_64_PLT32 as R_X86_64_PC32
2018-02-22 09:01:10 -08:00
mpparse.c
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-02-14 17:02:15 -08:00
msr.c
x86/msr: Remove bogus cleanup from the error path
2016-12-25 10:47:41 +01:00
nmi_selftest.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nmi.c
locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
2017-10-25 11:01:08 +02:00
paravirt_patch_32.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
paravirt_patch_64.c
x86/paravirt: Dont patch flush_tlb_single
2017-12-17 14:27:52 +01:00
paravirt-spinlocks.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
paravirt.c
x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]()
2018-02-15 01:15:52 +01:00
pci-calgary_64.c
x86, calgary: Convert timers to use timer_setup()
2017-11-02 15:50:32 -07:00
pci-dma.c
dma-mapping: add an arch_dma_supported hook
2018-01-15 09:34:59 +01:00
pci-iommu_table.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pci-nommu.c
dma-mapping: move swiotlb arch helpers to a new header
2018-01-10 16:40:54 +01:00
pci-swiotlb.c
swiotlb: rename swiotlb_free to swiotlb_exit
2018-01-15 09:35:39 +01:00
pcspeaker.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
perf_regs.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
platform-quirks.c
x86/platform: Control warm reset setup via legacy feature flag
2018-01-14 21:11:53 +01:00
pmem.c
resource: Provide resource struct in resource walk callback
2017-11-07 15:35:57 +01:00
probe_roms.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
process_32.c
x86/entry/64: Make cpu_entry_area.tss read-only
2017-12-17 14:27:52 +01:00
process_64.c
x86/asm: Move 'status' from thread_struct to thread_info
2018-01-30 15:30:36 +01:00
process.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-30 13:01:09 -08:00
ptrace.c
x86/asm: Move 'status' from thread_struct to thread_info
2018-01-30 15:30:36 +01:00
pvclock.c
x86/pvclock: add setter for pvclock_pvti_cpu0_va
2017-11-08 16:33:14 -05:00
quirks.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
reboot_fixups_32.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
reboot.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
relocate_kernel_32.S
…
relocate_kernel_64.S
x86/kexec: Make kexec (mostly) work in 5-level paging mode
2018-01-31 08:39:40 +01:00
resource.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rtc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
setup_percpu.c
x86/cpu_entry_area: Sync cpu_entry_area to initial_page_table
2018-03-01 09:48:27 +01:00
setup.c
x86/cpu_entry_area: Sync cpu_entry_area to initial_page_table
2018-03-01 09:48:27 +01:00
signal_compat.c
signal: Unify and correct copy_siginfo_to_user32
2018-01-15 19:56:20 -06:00
signal.c
x86/asm: Move 'status' from thread_struct to thread_info
2018-01-30 15:30:36 +01:00
smp.c
x86/tracing: Disentangle pagefault and resched IPI tracing key
2017-08-29 11:42:29 +02:00
smpboot.c
x86/topology: Update the 'cpu cores' field in /proc/cpuinfo correctly across CPU hotplug operations
2018-02-23 08:47:47 +01:00
stacktrace.c
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-03 16:41:07 -08:00
step.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sys_x86_64.c
x86/mm: Prevent non-MAP_FIXED mapping across DEFAULT_MAP_WINDOW border
2017-11-16 11:43:11 +01:00
sysfb_efi.c
…
sysfb_simplefb.c
x86/sysfb: Fix lfb_size calculation
2016-11-16 09:38:23 +01:00
sysfb.c
…
tboot.c
x86/pti: Make unpoison of pgd for trusted boot work for real
2018-01-11 23:36:59 +01:00
tce_64.c
…
time.c
x86/time: Unconditionally register legacy timer interrupt
2018-01-14 20:18:23 +01:00
tls.c
x86/ldt: Make the LDT mapping RO
2017-12-23 21:13:01 +01:00
tls.h
…
topology.c
…
trace_clock.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tracepoint.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
traps.c
x86/debug: Use UD2 for WARN()
2018-02-15 01:15:50 +01:00
tsc_msr.c
x86/tsc: Set TSC_KNOWN_FREQ and TSC_RELIABLE flags on Intel Atom SoCs
2016-11-18 10:58:31 +01:00
tsc_sync.c
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 19:07:38 -08:00
tsc.c
x86/tsc: Introduce early tsc clocksource
2018-01-14 20:18:23 +01:00
umip.c
x86/umip: Fix insn_get_code_seg_params()'s return value
2017-11-23 20:17:59 +01:00
unwind_frame.c
x86/unwind: Disable unwinder warnings on 32-bit
2017-10-10 12:49:49 +02:00
unwind_guess.c
x86/unwind: Add the ORC unwinder
2017-07-26 13:18:20 +02:00
unwind_orc.c
extable: Make init_kernel_text() global
2018-02-21 16:54:06 +01:00
uprobes.c
uprobes/x86: Emulate push insns for uprobe on x86
2017-12-11 18:42:11 +01:00
verify_cpu.S
x86/boot: Annotate verify_cpu() as a callable function
2017-09-28 09:39:03 +02:00
vm86_32.c
Merge commit 'upstream-x86-entry' into WIP.x86/mm
2017-12-17 12:58:53 +01:00
vmlinux.lds.S
retpoline: Introduce start/end markers of indirect thunk
2018-01-19 16:31:28 +01:00
vsmp_64.c
x86/apic: Remove unused callbacks
2017-09-25 20:51:58 +02:00
x86_init.c
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 18:29:23 -08:00