Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) # KVM configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) source "virt/kvm/Kconfig"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) menuconfig VIRTUALIZATION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 	bool "Virtualization"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 	  Say Y here to get to see options for using your Linux host to run
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 	  other operating systems inside virtual machines (guests).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	  This option alone does not add any kernel code.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	  If you say N, all options in this submenu will be skipped and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	  disabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) if VIRTUALIZATION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) config KVM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	select PREEMPT_NOTIFIERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	select HAVE_KVM_EVENTFD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	select HAVE_KVM_VCPU_ASYNC_IOCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	select SRCU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	select KVM_VFIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	select IRQ_BYPASS_MANAGER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	select HAVE_KVM_IRQ_BYPASS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) config KVM_BOOK3S_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) config KVM_BOOK3S_32_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	select KVM_BOOK3S_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	select KVM_MMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) config KVM_BOOK3S_64_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	select KVM_BOOK3S_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	select PPC_DAWR_FORCE_ENABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) config KVM_BOOK3S_PR_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	select KVM_MMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	select MMU_NOTIFIER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) config KVM_BOOK3S_HV_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) config KVM_BOOK3S_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	tristate "KVM support for PowerPC book3s_32 processors"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	select KVM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	select KVM_BOOK3S_32_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	select KVM_BOOK3S_PR_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	  Support running unmodified book3s_32 guest kernels
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	  in virtual machines on book3s_32 host processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	  This module provides access to the hardware capabilities through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	  a character device node named /dev/kvm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) config KVM_BOOK3S_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	tristate "KVM support for PowerPC book3s_64 processors"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	depends on PPC_BOOK3S_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	select KVM_BOOK3S_64_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	select KVM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	select KVM_BOOK3S_PR_POSSIBLE if !KVM_BOOK3S_HV_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	select SPAPR_TCE_IOMMU if IOMMU_SUPPORT && (PPC_PSERIES || PPC_POWERNV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	  Support running unmodified book3s_64 and book3s_32 guest kernels
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	  in virtual machines on book3s_64 host processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	  This module provides access to the hardware capabilities through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	  a character device node named /dev/kvm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) config KVM_BOOK3S_64_HV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	tristate "KVM for POWER7 and later using hypervisor mode in host"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	depends on KVM_BOOK3S_64 && PPC_POWERNV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	select KVM_BOOK3S_HV_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	select MMU_NOTIFIER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	select CMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	  Support running unmodified book3s_64 guest kernels in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	  virtual machines on POWER7 and newer processors that have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	  hypervisor mode available to the host.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	  If you say Y here, KVM will use the hardware virtualization
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	  facilities of POWER7 (and later) processors, meaning that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	  guest operating systems will run at full hardware speed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	  using supervisor and user modes.  However, this also means
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	  that KVM is not usable under PowerVM (pHyp), is only usable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	  on POWER7 or later processors, and cannot emulate a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	  different processor from the host processor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) config KVM_BOOK3S_64_PR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	tristate "KVM support without using hypervisor mode in host"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	depends on KVM_BOOK3S_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	select KVM_BOOK3S_PR_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	  Support running guest kernels in virtual machines on processors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	  without using hypervisor mode in the host, by running the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	  guest in user mode (problem state) and emulating all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	  privileged instructions and registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	  This is not as fast as using hypervisor mode, but works on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	  machines where hypervisor mode is not available or not usable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	  and can emulate processors that are different from the host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	  processor, including emulating 32-bit processors on a 64-bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	  host.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) config KVM_BOOK3S_HV_EXIT_TIMING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	bool "Detailed timing for hypervisor real-mode code"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	depends on KVM_BOOK3S_HV_POSSIBLE && DEBUG_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	  Calculate time taken for each vcpu in the real-mode guest entry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	  exit, and interrupt handling code, plus time spent in the guest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	  and in nap mode due to idle (cede) while other threads are still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	  in the guest.  The total, minimum and maximum times in nanoseconds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	  together with the number of executions are reported in debugfs in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	  kvm/vm#/vcpu#/timings.  The overhead is of the order of 30 - 40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	  ns per exit on POWER8.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) config KVM_BOOKE_HV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) config KVM_EXIT_TIMING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	bool "Detailed exit timing"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	depends on KVM_E500V2 || KVM_E500MC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	  Calculate elapsed time for every exit/enter cycle. A per-vcpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	  report is available in debugfs kvm/vm#_vcpu#_timing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	  The overhead is relatively small, however it is not recommended for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	  production environments.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) config KVM_E500V2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	bool "KVM support for PowerPC E500v2 processors"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	depends on E500 && !PPC_E500MC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	select KVM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	select KVM_MMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	select MMU_NOTIFIER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	  Support running unmodified E500 guest kernels in virtual machines on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	  E500v2 host processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	  This module provides access to the hardware capabilities through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	  a character device node named /dev/kvm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) config KVM_E500MC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	bool "KVM support for PowerPC E500MC/E5500/E6500 processors"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	depends on PPC_E500MC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	select KVM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	select KVM_MMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	select KVM_BOOKE_HV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	select MMU_NOTIFIER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	  Support running unmodified E500MC/E5500/E6500 guest kernels in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	  virtual machines on E500MC/E5500/E6500 host processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	  This module provides access to the hardware capabilities through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	  a character device node named /dev/kvm.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) config KVM_MPIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	bool "KVM in-kernel MPIC emulation"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	depends on KVM && E500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	select HAVE_KVM_IRQCHIP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	select HAVE_KVM_IRQFD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	select HAVE_KVM_IRQ_ROUTING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	select HAVE_KVM_MSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	  Enable support for emulating MPIC devices inside the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	  host kernel, rather than relying on userspace to emulate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	  Currently, support is limited to certain versions of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	  Freescale's MPIC implementation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) config KVM_XICS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	bool "KVM in-kernel XICS emulation"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	depends on KVM_BOOK3S_64 && !KVM_MPIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	select HAVE_KVM_IRQCHIP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	select HAVE_KVM_IRQFD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	  Include support for the XICS (eXternal Interrupt Controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	  Specification) interrupt controller architecture used on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	  IBM POWER (pSeries) servers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) config KVM_XIVE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	depends on KVM_XICS && PPC_XIVE_NATIVE && KVM_BOOK3S_HV_POSSIBLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) endif # VIRTUALIZATION