diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-01-05 15:35:13 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-07 21:33:03 +0300 |
| commit | 36487e6228c4cb04257c92266a04078a384bc4ec (patch) | |
| tree | cd483a6cc3916cf83f298614aad1507188979952 /arch/x86/include/asm/fpu | |
| parent | 980fe2fddcff21937c93532b4597c8ea450346c1 (diff) | |
| download | linux-36487e6228c4cb04257c92266a04078a384bc4ec.tar.xz | |
x86/fpu: Prepare guest FPU for dynamically enabled FPU features
To support dynamically enabled FPU features for guests prepare the guest
pseudo FPU container to keep track of the currently enabled xfeatures and
the guest permissions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jing Liu <jing2.liu@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20220105123532.12586-3-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/fpu')
| -rw-r--r-- | arch/x86/include/asm/fpu/types.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h index 6ddf80637697..c752d0aa23a4 100644 --- a/arch/x86/include/asm/fpu/types.h +++ b/arch/x86/include/asm/fpu/types.h @@ -505,6 +505,19 @@ struct fpu { */ struct fpu_guest { /* + * @xfeatures: xfeature bitmap of features which are + * currently enabled for the guest vCPU. + */ + u64 xfeatures; + + /* + * @perm: xfeature bitmap of features which are + * permitted to be enabled for the guest + * vCPU. + */ + u64 perm; + + /* * @fpstate: Pointer to the allocated guest fpstate */ struct fpstate *fpstate; |