diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2024-02-03 11:45:13 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-02-16 14:30:16 +0100 |
| commit | ed3a0a011a9c33d81a0d024882ee433c42bfccae (patch) | |
| tree | 0987d6dba643b39e1152bb77b97c1ece26cef3d7 /arch/s390/include/asm/kvm_host.h | |
| parent | 4eed43de9ba0ae3af6716544408d185a152424cd (diff) | |
| download | lwn-ed3a0a011a9c33d81a0d024882ee433c42bfccae.tar.gz lwn-ed3a0a011a9c33d81a0d024882ee433c42bfccae.zip | |
s390/kvm: convert to regular kernel fpu user
KVM modifies the kernel fpu's regs pointer to its own area to implement its
custom version of preemtible kernel fpu context. With general support for
preemptible kernel fpu context there is no need for the extra complexity in
KVM code anymore.
Therefore convert KVM to a regular kernel fpu user. In particular this
means that all TIF_FPU checks can be removed, since the fpu register
context will never be changed by other kernel fpu users, and also the fpu
register context will be restored if a thread is preempted.
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/kvm_host.h')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index e336715eb7d2..56c2efb41cf2 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -743,7 +743,6 @@ struct kvm_vcpu_arch { struct kvm_s390_sie_block *vsie_block; unsigned int host_acrs[NUM_ACRS]; struct gs_cb *host_gscb; - struct fpu host_fpregs; struct kvm_s390_local_interrupt local_int; struct hrtimer ckc_timer; struct kvm_s390_pgm_info pgm; |