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Add CPUID manager for guest CPUID instructions #335

Merged
merged 5 commits into from
Nov 24, 2020
Merged

Add CPUID manager for guest CPUID instructions #335

merged 5 commits into from
Nov 24, 2020

Commits on Nov 24, 2020

  1. cpuid: Add CPUID controller 

    Add CPUID controller to control the user's settings for CPUID leaves,
including the management of the configurable leaves, the validity
checking and adjustment of input values.

Signed-off-by: Wenchao Wang <wenchao.wang@intel.com>
    @wcwang
    wcwang committed Nov 24, 2020
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  2. cpuid: Optimize host features cache calculation 

    Optimize host supported features cache algorithm during HAXM
initialization.

* Simplify the storage type for both host and guest supported features
* Improve the calculation method of host supported features to be more
  efficient

Signed-off-by: Wenchao Wang <wenchao.wang@intel.com>
    @wcwang
    wcwang committed Nov 24, 2020
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  3. cpuid: Add CPUID manager 

    Add CPUID manager to manage the supported guest CPUID instructions. For
the leaves in the manager list, if the execution function is specified,
the return values of the host CPUID instruction will be overwritten; If
not specified, the host values will be returned directly. For the leaves
not in the manager list, it will return that those CPUID instructions
are not supported.

Signed-off-by: Wenchao Wang <wenchao.wang@intel.com>
    @wcwang
    wcwang committed Nov 24, 2020
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  4. cpuid: Cache the supported guest CPUID values 

    Cache the supported guest CPUID instruction values in the initialization
phase to avoid repeated calculations each time a guest CPUID instruction
is executed. The supported guest CPUID leaves are managed by the CPUID
manager, and the cache memory size is dynamically calculated. When
setting the CPUID values, modify the cached values directly.

Signed-off-by: Wenchao Wang <wenchao.wang@intel.com>
    @wcwang
    wcwang committed Nov 24, 2020
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  5. cpuid: Add support for CPUID leaves 15H and 16H 

    Enable support for guest CPUID instructions CPUID.15H and CPUID.16H.

* Add CPUID.15H and CPUID.16H into CPUID manager as the supported guest
  CPUID instructions
* Add CPUID.15H and CPUID.16H into CPUID controller to allow user to
  set their values
* Adjust maximum return value of basic CPUID information to 0x16

Signed-off-by: Wenchao Wang <wenchao.wang@intel.com>
    @wcwang
    wcwang committed Nov 24, 2020
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