Commit 3e1bf47e authored by Ingo Molnar's avatar Ingo Molnar
Browse files

x86/fpu: Rename copy_fpstate_to_fpregs() to copy_kernel_to_fpregs() 



Bring the __copy_fpstate_to_fpregs() and copy_fpstate_to_fpregs() functions
in line with the naming of other kernel-to-FPU-registers copying functions.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Bobby Powers <bobbypowers@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 43b287b3

arch/x86/include/asm/fpu/internal.h

+4 −4
Original line number Diff line number Diff line
@@ -450,7 +450,7 @@ static inline int copy_fpregs_to_fpstate(struct fpu *fpu) 
	return 0;

}



static inline int __copy_fpstate_to_fpregs(struct fpu *fpu)

static inline int __copy_kernel_to_fpregs(struct fpu *fpu)

{

	if (use_xsave()) {

		copy_kernel_to_xregs(&fpu->state.xsave, -1);
@@ -463,7 +463,7 @@ static inline int __copy_fpstate_to_fpregs(struct fpu *fpu) 
	}

}



static inline int copy_fpstate_to_fpregs(struct fpu *fpu)

static inline int copy_kernel_to_fpregs(struct fpu *fpu)

{

	/*

	 * AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception is
@@ -478,7 +478,7 @@ static inline int copy_fpstate_to_fpregs(struct fpu *fpu) 
			: : [addr] "m" (fpu->fpregs_active));

	}



	return __copy_fpstate_to_fpregs(fpu);

	return __copy_kernel_to_fpregs(fpu);

}



extern int copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
@@ -647,7 +647,7 @@ switch_fpu_prepare(struct fpu *old_fpu, struct fpu *new_fpu, int cpu) 
static inline void switch_fpu_finish(struct fpu *new_fpu, fpu_switch_t fpu_switch)

{

	if (fpu_switch.preload) {

		if (unlikely(copy_fpstate_to_fpregs(new_fpu))) {

		if (unlikely(copy_kernel_to_fpregs(new_fpu))) {

			WARN_ON_FPU(1);

			fpu__clear(new_fpu);

		}

arch/x86/kernel/fpu/core.c

+2 −2
Original line number Diff line number Diff line
@@ -127,7 +127,7 @@ void __kernel_fpu_end(void) 
	struct fpu *fpu = &current->thread.fpu;



	if (fpu->fpregs_active) {

		if (WARN_ON_FPU(copy_fpstate_to_fpregs(fpu)))

		if (WARN_ON_FPU(copy_kernel_to_fpregs(fpu)))

			fpu__clear(fpu);

	} else {

		__fpregs_deactivate_hw();
@@ -370,7 +370,7 @@ void fpu__restore(struct fpu *fpu) 
	/* Avoid __kernel_fpu_begin() right after fpregs_activate() */

	kernel_fpu_disable();

	fpregs_activate(fpu);

	if (unlikely(copy_fpstate_to_fpregs(fpu))) {

	if (unlikely(copy_kernel_to_fpregs(fpu))) {

		/* Copying the kernel state to FPU registers should never fail: */

		WARN_ON_FPU(1);

		fpu__clear(fpu);

arch/x86/kvm/x86.c

+1 −1
Original line number Diff line number Diff line
@@ -7030,7 +7030,7 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) 
	kvm_put_guest_xcr0(vcpu);

	vcpu->guest_fpu_loaded = 1;

	__kernel_fpu_begin();

	__copy_fpstate_to_fpregs(&vcpu->arch.guest_fpu);

	__copy_kernel_to_fpregs(&vcpu->arch.guest_fpu);

	trace_kvm_fpu(1);

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE