Re: [PATCH for-4.19 v4 0/7] x86/xstate: Fixes to size calculations

["Oleksii K." <oleksii.kurochko@xxxxxxxxx>]

On Mon, 2024-06-17 at 18:39 +0100, Andrew Cooper wrote:
> Only minor changes in v4 vs v3.  See patches for details.
> 
> The end result has been tested across the entire XenServer hardware
> lab.  This
> found several false assupmtion about how the dynamic sizes behave.
Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>

~ Oleksii
> 
> Patches 1 and 6 the main bugfixes from this series.  There's still
> lots more
> work to do in order to get AMX and/or CET working, but this is at
> least a 4-yo
> series finally off my plate.
> 
> Andrew Cooper (7):
>   x86/xstate: Fix initialisation of XSS cache
>   x86/xstate: Cross-check dynamic XSTATE sizes at boot
>   x86/boot: Collect the Raw CPU Policy earlier on boot
>   x86/xstate: Rework xstate_ctxt_size() as xstate_uncompressed_size()
>   x86/cpu-policy: Simplify recalculate_xstate()
>   x86/cpuid: Fix handling of XSAVE dynamic leaves
>   x86/defns: Clean up X86_{XCR0,XSS}_* constants
> 
>  xen/arch/x86/cpu-policy.c                   |  56 ++--
>  xen/arch/x86/cpuid.c                        |  24 +-
>  xen/arch/x86/domctl.c                       |   2 +-
>  xen/arch/x86/hvm/hvm.c                      |   2 +-
>  xen/arch/x86/i387.c                         |   2 +-
>  xen/arch/x86/include/asm/x86-defns.h        |  55 ++--
>  xen/arch/x86/include/asm/xstate.h           |   8 +-
>  xen/arch/x86/setup.c                        |   4 +-
>  xen/arch/x86/xstate.c                       | 294 +++++++++++++++++-
> --
>  xen/include/public/arch-x86/cpufeatureset.h |   3 +
>  xen/include/xen/lib/x86/cpu-policy.h        |   2 +-
>  11 files changed, 330 insertions(+), 122 deletions(-)
>