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[0/4] Support x2APIC mode with TCG accelerator

Message ID 20230221160500.30336-1-minhquangbui99@gmail.com
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Series Support x2APIC mode with TCG accelerator | expand

Message

Bui Quang Minh Feb. 21, 2023, 4:04 p.m. UTC 
This series implements x2APIC mode in userspace local APIC and the
RDMSR/WRMSR helper to access x2APIC registers in x2APIC mode. With this
series, we can now boot up Linux kernel in x2APIC with TCG accelerator.

Bui Quang Minh (4):
  apic: add support for x2APIC mode
  i386/tcg: implement x2APIC registers MSR access
  intel_iommu: allow Extended Interrupt Mode when using userspace local
    APIC
  test/avocado: test Linux boot up in x2APIC with userspace local APIC

 hw/i386/intel_iommu.c                |  11 --
 hw/intc/apic.c                       | 211 +++++++++++++++++++++------
 hw/intc/apic_common.c                |   2 +-
 include/hw/i386/apic.h               |   5 +-
 include/hw/i386/apic_internal.h      |   2 +-
 target/i386/cpu-sysemu.c             |   5 +
 target/i386/cpu.c                    |   5 +-
 target/i386/cpu.h                    |   4 +
 target/i386/tcg/sysemu/misc_helper.c |  27 ++++
 tests/avocado/tcg_x2apic.py          |  91 ++++++++++++
 10 files changed, 302 insertions(+), 61 deletions(-)
 create mode 100644 tests/avocado/tcg_x2apic.py

Comments

David Woodhouse March 6, 2023, 5:55 p.m. UTC | #1 
On Tue, 2023-02-21 at 23:04 +0700, Bui Quang Minh wrote:
> This series implements x2APIC mode in userspace local APIC and the
> RDMSR/WRMSR helper to access x2APIC registers in x2APIC mode. With this
> series, we can now boot up Linux kernel in x2APIC with TCG accelerator.
> 
> Bui Quang Minh (4):
>   apic: add support for x2APIC mode
>   i386/tcg: implement x2APIC registers MSR access
>   intel_iommu: allow Extended Interrupt Mode when using userspace local
>     APIC
>   test/avocado: test Linux boot up in x2APIC with userspace local APIC

Please can you ensure CPUID 0x0B is correctly populated with the APIC
ID (and other information) when X2APIC is enabled?