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| author | Ingo Molnar <mingo@kernel.org> | 2015-05-25 11:59:35 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-27 14:11:32 +0200 |
| commit | 003e2e8b57e79709e4973f6cb48381b2ba396680 (patch) | |
| tree | 51c7d2f09c0c053d9bd40e83456f1d268edaff5c /arch/x86/kvm/x86.c | |
| parent | 9ccc27a5d297503e485373b69688d038a1d8e662 (diff) | |
| download | lwn-003e2e8b57e79709e4973f6cb48381b2ba396680.tar.gz lwn-003e2e8b57e79709e4973f6cb48381b2ba396680.zip | |
x86/fpu: Standardize the parameter type of copy_kernel_to_fpregs()
Bring the __copy_fpstate_to_fpregs() and copy_fpstate_to_fpregs() functions
in line with the parameter passing convention of other kernel-to-FPU-registers
copying functions: pass around an in-memory FPU register state pointer,
instead of struct fpu *.
NOTE: This patch also changes the assembly constraint of the FXSAVE-leak
workaround from 'fpu->fpregs_active' to 'fpstate' - but that is fine,
as we only need a valid memory address there for the FILDL instruction.
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: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 66871f4937fa..26eaeb522cab 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -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_kernel_to_fpregs(&vcpu->arch.guest_fpu); + __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state); trace_kvm_fpu(1); } |