On Tue, Nov 17, 2020 at 06:15:49PM +0000, 'Quentin Perret' via kernel-team wrote: > In order to allow the usage of code shared by the host and the hyp in > static inline library function, allow the usage of kvm_nvhe_sym() at el2 > by defaulting to the raw symbol name. > > Signed-off-by: Quentin Perret <qper...@google.com> > --- > arch/arm64/include/asm/hyp_image.h | 4 ++++ > arch/arm64/include/asm/kvm_asm.h | 4 ++-- > arch/arm64/kvm/arm.c | 2 +- > 3 files changed, 7 insertions(+), 3 deletions(-) > > diff --git a/arch/arm64/include/asm/hyp_image.h > b/arch/arm64/include/asm/hyp_image.h > index daa1a1da539e..8b807b646b8f 100644 > --- a/arch/arm64/include/asm/hyp_image.h > +++ b/arch/arm64/include/asm/hyp_image.h > @@ -7,11 +7,15 @@ > #ifndef __ARM64_HYP_IMAGE_H__ > #define __ARM64_HYP_IMAGE_H__ > > +#ifndef __KVM_NVHE_HYPERVISOR__ > /* > * KVM nVHE code has its own symbol namespace prefixed with __kvm_nvhe_, > * to separate it from the kernel proper. > */ > #define kvm_nvhe_sym(sym) __kvm_nvhe_##sym > +#else > +#define kvm_nvhe_sym(sym) sym > +#endif > > #ifdef LINKER_SCRIPT > > diff --git a/arch/arm64/include/asm/kvm_asm.h > b/arch/arm64/include/asm/kvm_asm.h > index 1a86581e581e..e4934f5e4234 100644 > --- a/arch/arm64/include/asm/kvm_asm.h > +++ b/arch/arm64/include/asm/kvm_asm.h > @@ -173,11 +173,11 @@ struct kvm_s2_mmu; > DECLARE_KVM_NVHE_SYM(__kvm_hyp_init); > DECLARE_KVM_NVHE_SYM(__kvm_hyp_host_vector); > DECLARE_KVM_HYP_SYM(__kvm_hyp_vector); > -DECLARE_KVM_NVHE_SYM(__kvm_hyp_psci_cpu_entry); > #define __kvm_hyp_init CHOOSE_NVHE_SYM(__kvm_hyp_init) > #define __kvm_hyp_host_vector > CHOOSE_NVHE_SYM(__kvm_hyp_host_vector) > #define __kvm_hyp_vector CHOOSE_HYP_SYM(__kvm_hyp_vector) > -#define __kvm_hyp_psci_cpu_entry > CHOOSE_NVHE_SYM(__kvm_hyp_psci_cpu_entry) > + > +void kvm_nvhe_sym(__kvm_hyp_psci_cpu_entry)(void); > > extern unsigned long kvm_arm_hyp_percpu_base[NR_CPUS]; > DECLARE_KVM_NVHE_SYM(__per_cpu_start); > diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c > index 882eb383bd75..391cf6753a13 100644 > --- a/arch/arm64/kvm/arm.c > +++ b/arch/arm64/kvm/arm.c > @@ -1369,7 +1369,7 @@ static void cpu_prepare_hyp_mode(int cpu) > > params->vector_hyp_va = kern_hyp_va((unsigned > long)kvm_ksym_ref(__kvm_hyp_host_vector)); > params->stack_hyp_va = kern_hyp_va(per_cpu(kvm_arm_hyp_stack_page, cpu) > + PAGE_SIZE); > - params->entry_hyp_va = kern_hyp_va((unsigned > long)kvm_ksym_ref(__kvm_hyp_psci_cpu_entry)); > + params->entry_hyp_va = kern_hyp_va((unsigned > long)kvm_ksym_ref_nvhe(__kvm_hyp_psci_cpu_entry));
Why is this change needed? > params->pgd_pa = kvm_mmu_get_httbr(); > > /* > -- > 2.29.2.299.gdc1121823c-goog > > -- > To unsubscribe from this group and stop receiving emails from it, send an > email to kernel-team+unsubscr...@android.com. >
