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Date: Tue, 10 Aug 2021 06:57:13 +0200 From: Fuad Tabba <tabba@...gle.com> To: Quentin Perret <qperret@...gle.com> Cc: maz@...nel.org, james.morse@....com, alexandru.elisei@....com, suzuki.poulose@....com, catalin.marinas@....com, will@...nel.org, linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org, ardb@...nel.org, qwandor@...gle.com, dbrazdil@...gle.com, kernel-team@...roid.com Subject: Re: [PATCH v4 14/21] KVM: arm64: Expose pkvm_hyp_id Hi Quentin, On Mon, Aug 9, 2021 at 5:25 PM Quentin Perret <qperret@...gle.com> wrote: > > Allow references to the hypervisor's owner id from outside > mem_protect.c. > > Signed-off-by: Quentin Perret <qperret@...gle.com> > --- Reviewed-by: Fuad Tabba <tabba@...gle.com> Thanks, /fuad > arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 2 ++ > arch/arm64/kvm/hyp/nvhe/mem_protect.c | 2 +- > 2 files changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h > index 0849ee8fa260..23316a021880 100644 > --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h > +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h > @@ -46,6 +46,8 @@ struct host_kvm { > }; > extern struct host_kvm host_kvm; > > +extern const u8 pkvm_hyp_id; > + > int __pkvm_prot_finalize(void); > int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end); > > diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c > index f95a5a4aa09c..ee255171945c 100644 > --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c > +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c > @@ -31,7 +31,7 @@ static struct hyp_pool host_s2_pool; > u64 id_aa64mmfr0_el1_sys_val; > u64 id_aa64mmfr1_el1_sys_val; > > -static const u8 pkvm_hyp_id = 1; > +const u8 pkvm_hyp_id = 1; > > static void *host_s2_zalloc_pages_exact(size_t size) > { > -- > 2.32.0.605.g8dce9f2422-goog >
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