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From: Michael Neuling <mikey@neuling.org>
To: Scott Wood <scottwood@freescale.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: BOOKE KVM calling load_up_fpu from C?
Date: Tue, 12 Feb 2013 14:29:20 +1100	[thread overview]
Message-ID: <14306.1360639760@ale.ozlabs.ibm.com> (raw)

Scott,

I was looking at changing how load_up_fpu works and I found this in
arch/powerpc/kvm/booke.h:

static inline void kvmppc_load_guest_fp(struct kvm_vcpu *vcpu)
{
#ifdef CONFIG_PPC_FPU
	if (vcpu->fpu_active && !(current->thread.regs->msr & MSR_FP)) {
		load_up_fpu();
		current->thread.regs->msr |= MSR_FP;
	}
#endif
}

I'm wondering how this is suppose to work since load_up_fpu is suppose
to have MSR in R12?

Mikey

             reply	other threads:[~2013-02-12  3:29 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-12  3:29 Michael Neuling [this message]
2013-02-12  3:37 ` BOOKE KVM calling load_up_fpu from C? Bhushan Bharat-R65777
2013-02-12  3:46   ` Michael Neuling
2013-02-12  3:58     ` Bhushan Bharat-R65777
2013-02-12  4:16       ` Michael Neuling
2013-02-12  9:01         ` Bhushan Bharat-R65777
2013-02-12 18:33           ` Scott Wood
2013-02-12 22:51             ` Michael Neuling
2013-02-13  1:18             ` Bhushan Bharat-R65777
2013-02-13  1:23               ` Scott Wood
2013-02-13  1:26                 ` Bhushan Bharat-R65777
2013-02-13  4:17                 ` Bhushan Bharat-R65777
2013-02-13 17:37                   ` Scott Wood

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