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Date: Mon, 23 Oct 2017 16:14:35 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: Christoffer Dall <cdall@...aro.org>, Kees Cook <keescook@...omium.org>
Cc: Christoffer Dall <christoffer.dall@...aro.org>,
kvmarm@...ts.cs.columbia.edu,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>, KVM <kvm@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
Radim Krčmář <rkrcmar@...hat.com>,
Marc Zyngier <marc.zyngier@....com>
Subject: Re: [PATCH] KVM: arm/arm64: Allow usercopy to vcpu->arch.ctxt and
arm64 debug
On 22/10/2017 09:44, Christoffer Dall wrote:
> However, I think it's much clearer if I
> rewrite these to use get_user() and put_user(). v2 incoming.
I'd actually prefer if you all do a trivial conversion to
kvm_init_usercopy to begin with. In fact, we could just change the
default from "0, 0" to "0, sizeof (kvm_arch_vcpu)" in kvm_init. Any
other change can be applied after the patches are merged to Linus's
tree, especially with KVM Forum and the merge window both coming soon.
I'll send a v2 myself later this week.
Thanks all,
Paolo
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