mbox series

[RFC,v0,0/5] PPC: KVM: pseries: Asynchronous page fault

Message ID 20210805072439.501481-1-bharata@linux.ibm.com (mailing list archive)
Headers show
Series PPC: KVM: pseries: Asynchronous page fault | expand

Message

Bharata B Rao Aug. 5, 2021, 7:24 a.m. UTC 
Hi,

This series adds asynchronous page fault support for pseries guests
and enables the support for the same in powerpc KVM. This is an
early RFC with details and multiple TODOs listed in patch descriptions.

This patch needs supporting enablement in QEMU too which will be
posted separately.

Bharata B Rao (5):
  powerpc: Define Expropriation interrupt bit to VPA byte offset 0xB9
  KVM: PPC: Add support for KVM_REQ_ESN_EXIT
  KVM: PPC: Book3S: Enable setting SRR1 flags for DSI
  KVM: PPC: BOOK3S HV: Async PF support
  pseries: Asynchronous page fault support

 Documentation/virt/kvm/api.rst            |  15 ++
 arch/powerpc/include/asm/async-pf.h       |  12 ++
 arch/powerpc/include/asm/hvcall.h         |   1 +
 arch/powerpc/include/asm/kvm_book3s_esn.h |  24 +++
 arch/powerpc/include/asm/kvm_host.h       |  22 +++
 arch/powerpc/include/asm/kvm_ppc.h        |   4 +-
 arch/powerpc/include/asm/lppaca.h         |  20 +-
 arch/powerpc/include/uapi/asm/kvm.h       |   6 +
 arch/powerpc/kvm/Kconfig                  |   2 +
 arch/powerpc/kvm/Makefile                 |   5 +-
 arch/powerpc/kvm/book3s.c                 |   6 +-
 arch/powerpc/kvm/book3s_64_mmu_radix.c    |   9 +-
 arch/powerpc/kvm/book3s_hv.c              |  37 +++-
 arch/powerpc/kvm/book3s_hv_esn.c          | 189 +++++++++++++++++++
 arch/powerpc/kvm/book3s_hv_nested.c       |   4 +-
 arch/powerpc/kvm/book3s_pr.c              |   4 +-
 arch/powerpc/mm/fault.c                   |   7 +-
 arch/powerpc/platforms/pseries/Makefile   |   2 +-
 arch/powerpc/platforms/pseries/async-pf.c | 219 ++++++++++++++++++++++
 drivers/cpuidle/cpuidle-pseries.c         |   4 +-
 include/uapi/linux/kvm.h                  |   2 +
 tools/include/uapi/linux/kvm.h            |   1 +
 22 files changed, 574 insertions(+), 21 deletions(-)
 create mode 100644 arch/powerpc/include/asm/async-pf.h
 create mode 100644 arch/powerpc/include/asm/kvm_book3s_esn.h
 create mode 100644 arch/powerpc/kvm/book3s_hv_esn.c
 create mode 100644 arch/powerpc/platforms/pseries/async-pf.c

Comments

Bharata B Rao Aug. 5, 2021, 7:35 a.m. UTC | #1 
On Thu, Aug 05, 2021 at 12:54:34PM +0530, Bharata B Rao wrote:
> Hi,
> 
> This series adds asynchronous page fault support for pseries guests
> and enables the support for the same in powerpc KVM. This is an
> early RFC with details and multiple TODOs listed in patch descriptions.
> 
> This patch needs supporting enablement in QEMU too which will be
> posted separately.

QEMU part is posted here:
https://lore.kernel.org/qemu-devel/20210805073228.502292-2-bharata@linux.ibm.com/T/#u

Regards,
Bharata.