[PATCH kvmtool v8 0/3] aarch64: Add stolen time support

[Sebastian Ene <sebastianene@google.com>]

These patches add support for stolen time functionality.

Patch #1 moves the vCPU structure initialisation before the target->init()
call to allow early access to the kvm structure from the vCPU
during target->init().

Patch #2 modifies the memory layout in arm-common/kvm-arch.h and adds a
new MMIO device PVTIME after the RTC region. A new flag is added in
kvm-config.h that will be used to control [enable/disable] the pvtime
functionality. Stolen time is enabled by default when the host
supports KVM_CAP_STEAL_TIME.

Patch #3 adds a new command line argument to disable the stolen time
functionality(by default is enabled).

Changelog since v7:
 - patch #2:
   - move teardown to kvm_cpu__delete()
   - don’t call kvm__supports_extension for the remainig cpu’s if it failed
     once and force 'no_pvtime' to 1
   - replace variable name 'is_supported' with 'is_failed_cfg'

Sebastian Ene (3):
  aarch64: Populate the vCPU struct before target->init()
  aarch64: Add stolen time support
  Add --no-pvtime command line argument

 Makefile                               |   1 +
 arm/aarch64/arm-cpu.c                  |   2 +-
 arm/aarch64/include/kvm/kvm-cpu-arch.h |   2 +
 arm/aarch64/pvtime.c                   | 108 +++++++++++++++++++++++++
 arm/include/arm-common/kvm-arch.h      |   6 +-
 arm/kvm-cpu.c                          |  15 ++--
 builtin-run.c                          |   2 +
 include/kvm/kvm-config.h               |   1 +
 8 files changed, 128 insertions(+), 9 deletions(-)
 create mode 100644 arm/aarch64/pvtime.c

-- 
2.35.1.616.g0bdcbb4464-goog

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm