On Tue, Dec 01, 2015 at 11:41:08AM +0000, Marc Zyngier wrote: > On 30/11/15 20:00, Christoffer Dall wrote: > > On Fri, Nov 27, 2015 at 06:49:56PM +0000, Marc Zyngier wrote: > >> In order to expose the various EL2 services that are private to > >> the hypervisor, add a new hyp.h file. > >> > >> So far, it only contains mundane things such as section annotation > >> and VA manipulation. > >> > >> Signed-off-by: Marc Zyngier <marc.zyng...@arm.com> > >> --- > >> arch/arm64/kvm/hyp/hyp.h | 31 +++++++++++++++++++++++++++++++ > >> 1 file changed, 31 insertions(+) > >> create mode 100644 arch/arm64/kvm/hyp/hyp.h > >> > >> diff --git a/arch/arm64/kvm/hyp/hyp.h b/arch/arm64/kvm/hyp/hyp.h > >> new file mode 100644 > >> index 0000000..dac843e > >> --- /dev/null > >> +++ b/arch/arm64/kvm/hyp/hyp.h > >> @@ -0,0 +1,31 @@ > >> +/* > >> + * Copyright (C) 2015 - ARM Ltd > >> + * Author: Marc Zyngier <marc.zyng...@arm.com> > >> + * > >> + * This program is free software; you can redistribute it and/or modify > >> + * it under the terms of the GNU General Public License version 2 as > >> + * published by the Free Software Foundation. > >> + * > >> + * This program is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + * > >> + * You should have received a copy of the GNU General Public License > >> + * along with this program. If not, see <http://www.gnu.org/licenses/>. > >> + */ > >> + > >> +#ifndef __ARM64_KVM_HYP_H__ > >> +#define __ARM64_KVM_HYP_H__ > >> + > >> +#include <linux/compiler.h> > >> +#include <linux/kvm_host.h> > >> +#include <asm/kvm_mmu.h> > >> +#include <asm/sysreg.h> > >> + > >> +#define __hyp_text __section(.hyp.text) notrace > > > > why notrace? > > Because you'd end with calls to mcount in each function prologue, and > that doesn't really well for stuff that is not executed in the kernel > address space.
right, makes good sense. > > >> + > >> +#define kern_hyp_va(v) (typeof(v))((unsigned long)v & > >> HYP_PAGE_OFFSET_MASK) > > > > should you have parenthesis around 'v' ? > > Yup. > > Thanks, > > M. > -- > Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html