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[v4,0/9] target/i386: Misc cleanup on KVM PV defs, outdated comments and error handling

Message ID 20240716161015.263031-1-zhao1.liu@intel.com (mailing list archive)
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Series target/i386: Misc cleanup on KVM PV defs, outdated comments and error handling | expand

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Zhao Liu July 16, 2024, 4:10 p.m. UTC 
Hi,

This is my v4 cleanup series. Compared with v3 [1],
 * Returned kvm_vm_ioctl() directly in kvm_install_msr_filters().
 * Added a patch (patch 9) to clean up ARRAY_SIZE(msr_handlers).


Background and Introduction
===========================

This series picks cleanup from my previous kvmclock [2] (as other
renaming attempts were temporarily put on hold).

In addition, this series also include the cleanup on a historically
workaround, recent comment of coco interface [3] and error handling
corner cases in kvm_arch_init().

Avoiding the fragmentation of these misc cleanups, I consolidated them
all in one series and was able to tackle them in one go!

[1]: https://lore.kernel.org/qemu-devel/20240715044955.3954304-1-zhao1.liu@intel.com/T/
[2]: https://lore.kernel.org/qemu-devel/20240329101954.3954987-1-zhao1.liu@linux.intel.com/
[3]: https://lore.kernel.org/qemu-devel/2815f0f1-9e20-4985-849c-d74c6cdc94ae@intel.com/

Thanks and Best Regards,
Zhao
---
Zhao Liu (9):
  target/i386/kvm: Add feature bit definitions for KVM CPUID
  target/i386/kvm: Remove local MSR_KVM_WALL_CLOCK and
    MSR_KVM_SYSTEM_TIME definitions
  target/i386/kvm: Only save/load kvmclock MSRs when kvmclock enabled
  target/i386/kvm: Save/load MSRs of kvmclock2
    (KVM_FEATURE_CLOCKSOURCE2)
  target/i386/kvm: Drop workaround for KVM_X86_DISABLE_EXITS_HTL typo
  target/i386/confidential-guest: Fix comment of
    x86_confidential_guest_kvm_type()
  target/i386/kvm: Clean up return values of MSR filter related
    functions
  target/i386/kvm: Clean up error handling in kvm_arch_init()
  target/i386/kvm: Replace ARRAY_SIZE(msr_handlers) with
    KVM_MSR_FILTER_MAX_RANGES

 hw/i386/kvm/clock.c              |   5 +-
 target/i386/confidential-guest.h |   2 +-
 target/i386/cpu.h                |  25 +++++++
 target/i386/kvm/kvm.c            | 113 +++++++++++++++++--------------
 target/i386/kvm/kvm_i386.h       |   4 +-
 5 files changed, 92 insertions(+), 57 deletions(-)