[PATCH v1 00/11] KVM: x86: break the xAPIC barrier

From	Radim Krčmář <rkrcmar@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH v1 00/11] KVM: x86: break the xAPIC barrier
Date	2016-06-30 23:00 +0200
Message-ID	<rPRe1-5Ou-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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RFC: http://www.spinics.net/lists/kvm/msg132036.html

This series allows userspace to create and send interrupts to VCPUs with
APIC ID > 255.

v1: 32 bit API extensions now use a toggleable capability called
KVM_CAP_X2APIC_API.

* new [1/11], loosely related and should have been posted long ago
* [2/11] improved comment for kvm_apic_map_get_dest_lapic() [Peter]
* [3/11] use round_up [Peter]
* [6/11] drop big endian format in lapic get/set ioctl [Paolo]
* [6/11] exclude APICv optimization of APIC ID register
* [6/11] rename __kvm_apic_state_fixup() parameter
* new [7/11], split from the previous patch
* [8/11] added r-b [Peter]
* [10/11] rewritten with a toggleable capability [Paolo]
* [10/11] dropped MSI_ADDR_EXT_DEST_ID to enforce reserved bits

Latest Linux, FreeBSD, and Windows run fine, but I haven't tested VFIO.
Linux works even with APIC ID over 255.  (QEMU and seabios patches to
achieve that are not yet posted.)


Radim Krčmář (11):
  KVM: x86: bump KVM_SOFT_MAX_VCPUS to 240
  KVM: x86: add kvm_apic_map_get_dest_lapic
  KVM: x86: dynamic kvm_apic_map
  KVM: x86: use u16 for logical VCPU mask in lapic
  KVM: x86: use generic function for MSI parsing
  KVM: x86: use hardware-compatible format for APIC ID register
  KVM: VMX: optimize APIC ID read with APICv
  KVM: x86: directly call recalculate_apic_map on lapic restore
  KVM: x86: reset lapic base in kvm_lapic_reset
  KVM: x86: add KVM_CAP_X2APIC_API
  KVM: x86: bump MAX_VCPUS to 288

 Documentation/virtual/kvm/api.txt |  26 +++
 arch/x86/include/asm/kvm_host.h   |  17 +-
 arch/x86/kvm/irq_comm.c           |  29 ++--
 arch/x86/kvm/lapic.c              | 357 ++++++++++++++++++--------------------
 arch/x86/kvm/lapic.h              |   9 +-
 arch/x86/kvm/vmx.c                |   5 +-
 arch/x86/kvm/x86.c                |  14 ++
 include/uapi/linux/kvm.h          |   1 +
 8 files changed, 248 insertions(+), 210 deletions(-)

-- 
2.9.0

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[PATCH v1 00/11] KVM: x86: break the xAPIC barrier Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
  [PATCH v1 06/11] KVM: x86: use hardware-compatible format for APIC ID register Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:40 +0200
      Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 15:20 +0200
        Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 16:20 +0200
          Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 17:00 +0200
            Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 17:10 +0200
              Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 18:00 +0200
                Re: [PATCH v1 06/11] KVM: x86: use hardware-compatible format for  APIC ID register Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 18:40 +0200
  [PATCH v1 10/11] KVM: x86: add KVM_CAP_X2APIC_API Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 10/11] KVM: x86: add KVM_CAP_X2APIC_API Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:30 +0200
      Re: [PATCH v1 10/11] KVM: x86: add KVM_CAP_X2APIC_API Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 15:30 +0200
    Re: [PATCH v1 10/11] KVM: x86: add KVM_CAP_X2APIC_API David Matlack <dmatlack@google.com> - 2016-07-01 20:20 +0200
      Re: [PATCH v1 10/11] KVM: x86: add KVM_CAP_X2APIC_API Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 20:40 +0200
  [PATCH v1 04/11] KVM: x86: use u16 for logical VCPU mask in lapic Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 04/11] KVM: x86: use u16 for logical VCPU mask in lapic Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:20 +0200
      Re: [PATCH v1 04/11] KVM: x86: use u16 for logical VCPU mask in lapic Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 14:50 +0200
        Re: [PATCH v1 04/11] KVM: x86: use u16 for logical VCPU mask in lapic Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 16:20 +0200
  [PATCH v1 07/11] KVM: VMX: optimize APIC ID read with APICv Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
  [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Andrew Honig <ahonig@google.com> - 2016-07-01 00:20 +0200
      Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:50 +0200
        Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 14:50 +0200
          Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 16:10 +0200
            Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 16:40 +0200
              Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 17:10 +0200
                Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 17:20 +0200
                Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 18:00 +0200
                Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 18:40 +0200
                Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 17:40 +0200
    Re: [PATCH v1 03/11] KVM: x86: dynamic kvm_apic_map Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 09:40 +0200
  [PATCH v1 01/11] KVM: x86: bump KVM_SOFT_MAX_VCPUS to 240 Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 01/11] KVM: x86: bump KVM_SOFT_MAX_VCPUS to 240 Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:50 +0200
  [PATCH v1 05/11] KVM: x86: use generic function for MSI parsing Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
  [PATCH v1 11/11] KVM: x86: bump MAX_VCPUS to 288 Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 11/11] KVM: x86: bump MAX_VCPUS to 288 Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:50 +0200
  [PATCH v1 09/11] KVM: x86: reset lapic base in kvm_lapic_reset Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 09/11] KVM: x86: reset lapic base in kvm_lapic_reset Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:50 +0200
  [PATCH v1 02/11] KVM: x86: add kvm_apic_map_get_dest_lapic Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200
    Re: [PATCH v1 02/11] KVM: x86: add kvm_apic_map_get_dest_lapic Paolo Bonzini <pbonzini@redhat.com> - 2016-07-01 10:00 +0200
      Re: [PATCH v1 02/11] KVM: x86: add kvm_apic_map_get_dest_lapic Radim Krčmář <rkrcmar@redhat.com> - 2016-07-01 14:50 +0200
  [PATCH v1 08/11] KVM: x86: directly call recalculate_apic_map on lapic restore Radim Krčmář <rkrcmar@redhat.com> - 2016-06-30 23:00 +0200

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