diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-10-13 16:55:31 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-10-20 22:26:41 +0200 |
| commit | 087df48c298c1cb829f4cd468d90f93234b1bc44 (patch) | |
| tree | fe5320ccc1ae355d3318f4fdecd753766a318e1f /arch/x86/include/asm/fpu | |
| parent | x86/fpu: Convert restore_fpregs_from_fpstate() to struct fpstate (diff) | |
| download | linux-087df48c298c1cb829f4cd468d90f93234b1bc44.tar.xz linux-087df48c298c1cb829f4cd468d90f93234b1bc44.zip | |
x86/fpu: Replace KVMs xstate component clearing
In order to prepare for the support of dynamically enabled FPU features,
move the clearing of xstate components to the FPU core code.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: kvm@vger.kernel.org
Link: https://lkml.kernel.org/r/20211013145322.399567049@linutronix.de
Diffstat (limited to 'arch/x86/include/asm/fpu')
| -rw-r--r-- | arch/x86/include/asm/fpu/api.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/fpu/xstate.h | 1 |
2 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h index 5ac5e4596b53..a97cf3e5887b 100644 --- a/arch/x86/include/asm/fpu/api.h +++ b/arch/x86/include/asm/fpu/api.h @@ -132,6 +132,7 @@ DECLARE_PER_CPU(struct fpu *, fpu_fpregs_owner_ctx); /* fpstate-related functions which are exported to KVM */ extern void fpu_init_fpstate_user(struct fpu *fpu); +extern void fpstate_clear_xstate_component(struct fpstate *fps, unsigned int xfeature); /* KVM specific functions */ extern void fpu_swap_kvm_fpu(struct fpu *save, struct fpu *rstor, u64 restore_mask); diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h index b8cebc0ee420..fb329bbfe89f 100644 --- a/arch/x86/include/asm/fpu/xstate.h +++ b/arch/x86/include/asm/fpu/xstate.h @@ -128,7 +128,6 @@ extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS]; extern void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask); -void *get_xsave_addr(struct xregs_state *xsave, int xfeature_nr); int xfeature_size(int xfeature_nr); int copy_uabi_from_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf); int copy_sigframe_from_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf); |