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
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2.35.1.616.g0bdcbb4464-goog
