Introduce arch specific API: kvm_selftest_arch_init to allow each arch to
handle initialization before running any selftest logic.
Suggested-by: Sean Christopherson <[email protected]>
Signed-off-by: Vishal Annapurve <[email protected]>
---
.../selftests/kvm/include/kvm_util_base.h | 5 +++++
.../selftests/kvm/lib/aarch64/processor.c | 18 +++++++++---------
tools/testing/selftests/kvm/lib/kvm_util.c | 2 ++
.../selftests/kvm/lib/riscv/processor.c | 4 ++++
.../selftests/kvm/lib/s390x/processor.c | 4 ++++
.../selftests/kvm/lib/x86_64/processor.c | 4 ++++
6 files changed, 28 insertions(+), 9 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
index 24fde97f6121..98edbbda9f97 100644
--- a/tools/testing/selftests/kvm/include/kvm_util_base.h
+++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
@@ -834,4 +834,9 @@ static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm)
return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0);
}
+/*
+ * API to execute architecture specific setup before executing selftest logic.
+ */
+void kvm_selftest_arch_init(void);
+
#endif /* SELFTEST_KVM_UTIL_BASE_H */
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
index 6f5551368944..2281d6c5d02f 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
@@ -495,15 +495,6 @@ void aarch64_get_supported_page_sizes(uint32_t ipa,
close(kvm_fd);
}
-/*
- * arm64 doesn't have a true default mode, so start by computing the
- * available IPA space and page sizes early.
- */
-void __attribute__((constructor)) init_guest_modes(void)
-{
- guest_modes_append_default();
-}
-
void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
uint64_t arg6, struct arm_smccc_res *res)
@@ -528,3 +519,12 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
[arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)
: "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
}
+
+/*
+ * arm64 doesn't have a true default mode, so start by computing the
+ * available IPA space and page sizes early.
+ */
+void kvm_selftest_arch_init(void)
+{
+ guest_modes_append_default();
+}
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 3c83838999f5..dafe4471a6c7 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -1984,4 +1984,6 @@ void __attribute((constructor)) kvm_selftest_init(void)
{
/* Tell stdout not to buffer its content. */
setbuf(stdout, NULL);
+
+ kvm_selftest_arch_init();
}
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
index 604478151212..26660dd2ba78 100644
--- a/tools/testing/selftests/kvm/lib/riscv/processor.c
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -362,3 +362,7 @@ void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
{
}
+
+void kvm_selftest_arch_init(void)
+{
+}
diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c
index 89d7340d9cbd..8654ec74009a 100644
--- a/tools/testing/selftests/kvm/lib/s390x/processor.c
+++ b/tools/testing/selftests/kvm/lib/s390x/processor.c
@@ -218,3 +218,7 @@ void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
{
}
+
+void kvm_selftest_arch_init(void)
+{
+}
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index 2e6e61bbe81b..20bf125f9363 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -1311,3 +1311,7 @@ bool vm_is_unrestricted_guest(struct kvm_vm *vm)
return val == 'Y';
}
+
+void kvm_selftest_arch_init(void)
+{
+}
--
2.37.2.789.g6183377224-goog
On Thu, Sep 15, 2022 at 12:04:42AM +0000, Vishal Annapurve wrote:
> Introduce arch specific API: kvm_selftest_arch_init to allow each arch to
> handle initialization before running any selftest logic.
>
> Suggested-by: Sean Christopherson <[email protected]>
> Signed-off-by: Vishal Annapurve <[email protected]>
> ---
> .../selftests/kvm/include/kvm_util_base.h | 5 +++++
> .../selftests/kvm/lib/aarch64/processor.c | 18 +++++++++---------
> tools/testing/selftests/kvm/lib/kvm_util.c | 2 ++
> .../selftests/kvm/lib/riscv/processor.c | 4 ++++
> .../selftests/kvm/lib/s390x/processor.c | 4 ++++
> .../selftests/kvm/lib/x86_64/processor.c | 4 ++++
> 6 files changed, 28 insertions(+), 9 deletions(-)
>
> diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
> index 24fde97f6121..98edbbda9f97 100644
> --- a/tools/testing/selftests/kvm/include/kvm_util_base.h
> +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
> @@ -834,4 +834,9 @@ static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm)
> return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0);
> }
>
> +/*
> + * API to execute architecture specific setup before executing selftest logic.
> + */
> +void kvm_selftest_arch_init(void);
> +
> #endif /* SELFTEST_KVM_UTIL_BASE_H */
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> index 6f5551368944..2281d6c5d02f 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> @@ -495,15 +495,6 @@ void aarch64_get_supported_page_sizes(uint32_t ipa,
> close(kvm_fd);
> }
>
> -/*
> - * arm64 doesn't have a true default mode, so start by computing the
> - * available IPA space and page sizes early.
> - */
> -void __attribute__((constructor)) init_guest_modes(void)
> -{
> - guest_modes_append_default();
> -}
> -
> void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
> uint64_t arg6, struct arm_smccc_res *res)
> @@ -528,3 +519,12 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)
> : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
> }
> +
> +/*
> + * arm64 doesn't have a true default mode, so start by computing the
> + * available IPA space and page sizes early.
> + */
It'd be better to move this comment inside the function above the
guest_modes_append_default call.
> +void kvm_selftest_arch_init(void)
> +{
> + guest_modes_append_default();
> +}
> diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
> index 3c83838999f5..dafe4471a6c7 100644
> --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> @@ -1984,4 +1984,6 @@ void __attribute((constructor)) kvm_selftest_init(void)
> {
> /* Tell stdout not to buffer its content. */
> setbuf(stdout, NULL);
> +
> + kvm_selftest_arch_init();
> }
> diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
> index 604478151212..26660dd2ba78 100644
> --- a/tools/testing/selftests/kvm/lib/riscv/processor.c
> +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
> @@ -362,3 +362,7 @@ void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
> void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
> {
> }
> +
> +void kvm_selftest_arch_init(void)
> +{
> +}
> diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c
> index 89d7340d9cbd..8654ec74009a 100644
> --- a/tools/testing/selftests/kvm/lib/s390x/processor.c
> +++ b/tools/testing/selftests/kvm/lib/s390x/processor.c
> @@ -218,3 +218,7 @@ void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
> void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
> {
> }
> +
> +void kvm_selftest_arch_init(void)
> +{
> +}
> diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> index 2e6e61bbe81b..20bf125f9363 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> @@ -1311,3 +1311,7 @@ bool vm_is_unrestricted_guest(struct kvm_vm *vm)
>
> return val == 'Y';
> }
> +
> +void kvm_selftest_arch_init(void)
> +{
> +}
> --
> 2.37.2.789.g6183377224-goog
>
Otherwise,
Reviewed-by: Andrew Jones <[email protected]>
On Thu, Sep 15, 2022 at 12:04:42AM +0000, Vishal Annapurve wrote:
> Introduce arch specific API: kvm_selftest_arch_init to allow each arch to
> handle initialization before running any selftest logic.
>
> Suggested-by: Sean Christopherson <[email protected]>
> Signed-off-by: Vishal Annapurve <[email protected]>
> ---
> .../selftests/kvm/include/kvm_util_base.h | 5 +++++
> .../selftests/kvm/lib/aarch64/processor.c | 18 +++++++++---------
> tools/testing/selftests/kvm/lib/kvm_util.c | 2 ++
> .../selftests/kvm/lib/riscv/processor.c | 4 ++++
> .../selftests/kvm/lib/s390x/processor.c | 4 ++++
> .../selftests/kvm/lib/x86_64/processor.c | 4 ++++
> 6 files changed, 28 insertions(+), 9 deletions(-)
>
> diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
> index 24fde97f6121..98edbbda9f97 100644
> --- a/tools/testing/selftests/kvm/include/kvm_util_base.h
> +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
> @@ -834,4 +834,9 @@ static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm)
> return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0);
> }
>
> +/*
> + * API to execute architecture specific setup before executing selftest logic.
nit: s/before executing selftest logic/before main()/
("selftest logic" is vague)
> + */
> +void kvm_selftest_arch_init(void);
> +
> #endif /* SELFTEST_KVM_UTIL_BASE_H */
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> index 6f5551368944..2281d6c5d02f 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> @@ -495,15 +495,6 @@ void aarch64_get_supported_page_sizes(uint32_t ipa,
> close(kvm_fd);
> }
>
> -/*
> - * arm64 doesn't have a true default mode, so start by computing the
> - * available IPA space and page sizes early.
> - */
> -void __attribute__((constructor)) init_guest_modes(void)
> -{
> - guest_modes_append_default();
> -}
> -
> void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
> uint64_t arg6, struct arm_smccc_res *res)
> @@ -528,3 +519,12 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)
> : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
> }
> +
> +/*
> + * arm64 doesn't have a true default mode, so start by computing the
> + * available IPA space and page sizes early.
> + */
> +void kvm_selftest_arch_init(void)
> +{
> + guest_modes_append_default();
> +}
> diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
> index 3c83838999f5..dafe4471a6c7 100644
> --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> @@ -1984,4 +1984,6 @@ void __attribute((constructor)) kvm_selftest_init(void)
> {
> /* Tell stdout not to buffer its content. */
> setbuf(stdout, NULL);
> +
> + kvm_selftest_arch_init();
> }
Suggest defining a default no-op implementation of
kvm_selftest_arch_init() using __weak since most architectures do not
actually need an implementation.
> diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
> index 604478151212..26660dd2ba78 100644
> --- a/tools/testing/selftests/kvm/lib/riscv/processor.c
> +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
> @@ -362,3 +362,7 @@ void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
> void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
> {
> }
> +
> +void kvm_selftest_arch_init(void)
> +{
> +}
> diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c
> index 89d7340d9cbd..8654ec74009a 100644
> --- a/tools/testing/selftests/kvm/lib/s390x/processor.c
> +++ b/tools/testing/selftests/kvm/lib/s390x/processor.c
> @@ -218,3 +218,7 @@ void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
> void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
> {
> }
> +
> +void kvm_selftest_arch_init(void)
> +{
> +}
> diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> index 2e6e61bbe81b..20bf125f9363 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> @@ -1311,3 +1311,7 @@ bool vm_is_unrestricted_guest(struct kvm_vm *vm)
>
> return val == 'Y';
> }
> +
> +void kvm_selftest_arch_init(void)
> +{
> +}
> --
> 2.37.2.789.g6183377224-goog
>
On Wed, Sep 21, 2022 at 1:51 PM David Matlack <[email protected]> wrote:
>
> On Thu, Sep 15, 2022 at 12:04:42AM +0000, Vishal Annapurve wrote:
> > Introduce arch specific API: kvm_selftest_arch_init to allow each arch to
> > handle initialization before running any selftest logic.
> >
> > Suggested-by: Sean Christopherson <[email protected]>
> > Signed-off-by: Vishal Annapurve <[email protected]>
> > ---
> > .../selftests/kvm/include/kvm_util_base.h | 5 +++++
> > .../selftests/kvm/lib/aarch64/processor.c | 18 +++++++++---------
> > tools/testing/selftests/kvm/lib/kvm_util.c | 2 ++
> > .../selftests/kvm/lib/riscv/processor.c | 4 ++++
> > .../selftests/kvm/lib/s390x/processor.c | 4 ++++
> > .../selftests/kvm/lib/x86_64/processor.c | 4 ++++
> > 6 files changed, 28 insertions(+), 9 deletions(-)
> >
> > diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
> > index 24fde97f6121..98edbbda9f97 100644
> > --- a/tools/testing/selftests/kvm/include/kvm_util_base.h
> > +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
> > @@ -834,4 +834,9 @@ static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm)
> > return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0);
> > }
> >
> > +/*
> > + * API to execute architecture specific setup before executing selftest logic.
>
> nit: s/before executing selftest logic/before main()/
>
Ack, will fix this in the next series.
> ("selftest logic" is vague)
>
> > + */
> > +void kvm_selftest_arch_init(void);
> > +
> > #endif /* SELFTEST_KVM_UTIL_BASE_H */
> > diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> > index 6f5551368944..2281d6c5d02f 100644
> > --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
> > +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> > @@ -495,15 +495,6 @@ void aarch64_get_supported_page_sizes(uint32_t ipa,
> > close(kvm_fd);
> > }
> >
> > -/*
> > - * arm64 doesn't have a true default mode, so start by computing the
> > - * available IPA space and page sizes early.
> > - */
> > -void __attribute__((constructor)) init_guest_modes(void)
> > -{
> > - guest_modes_append_default();
> > -}
> > -
> > void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> > uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
> > uint64_t arg6, struct arm_smccc_res *res)
> > @@ -528,3 +519,12 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> > [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)
> > : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
> > }
> > +
> > +/*
> > + * arm64 doesn't have a true default mode, so start by computing the
> > + * available IPA space and page sizes early.
> > + */
> > +void kvm_selftest_arch_init(void)
> > +{
> > + guest_modes_append_default();
> > +}
> > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
> > index 3c83838999f5..dafe4471a6c7 100644
> > --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> > @@ -1984,4 +1984,6 @@ void __attribute((constructor)) kvm_selftest_init(void)
> > {
> > /* Tell stdout not to buffer its content. */
> > setbuf(stdout, NULL);
> > +
> > + kvm_selftest_arch_init();
> > }
>
> Suggest defining a default no-op implementation of
> kvm_selftest_arch_init() using __weak since most architectures do not
> actually need an implementation.
>
Ack, will update this in the next series.
> > ...
> >
On Thu, Sep 15, 2022 at 2:44 AM Andrew Jones <[email protected]> wrote:
>
> On Thu, Sep 15, 2022 at 12:04:42AM +0000, Vishal Annapurve wrote:
> > Introduce arch specific API: kvm_selftest_arch_init to allow each arch to
> > handle initialization before running any selftest logic.
> >
> > Suggested-by: Sean Christopherson <[email protected]>
> > Signed-off-by: Vishal Annapurve <[email protected]>
> > ---
> > .../selftests/kvm/include/kvm_util_base.h | 5 +++++
> > .../selftests/kvm/lib/aarch64/processor.c | 18 +++++++++---------
> > tools/testing/selftests/kvm/lib/kvm_util.c | 2 ++
> > .../selftests/kvm/lib/riscv/processor.c | 4 ++++
> > .../selftests/kvm/lib/s390x/processor.c | 4 ++++
> > .../selftests/kvm/lib/x86_64/processor.c | 4 ++++
> > 6 files changed, 28 insertions(+), 9 deletions(-)
> >
> > diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
> > index 24fde97f6121..98edbbda9f97 100644
> > --- a/tools/testing/selftests/kvm/include/kvm_util_base.h
> > +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
> > @@ -834,4 +834,9 @@ static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm)
> > return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0);
> > }
> >
> > +/*
> > + * API to execute architecture specific setup before executing selftest logic.
> > + */
> > +void kvm_selftest_arch_init(void);
> > +
> > #endif /* SELFTEST_KVM_UTIL_BASE_H */
> > diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> > index 6f5551368944..2281d6c5d02f 100644
> > --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
> > +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
> > @@ -495,15 +495,6 @@ void aarch64_get_supported_page_sizes(uint32_t ipa,
> > close(kvm_fd);
> > }
> >
> > -/*
> > - * arm64 doesn't have a true default mode, so start by computing the
> > - * available IPA space and page sizes early.
> > - */
> > -void __attribute__((constructor)) init_guest_modes(void)
> > -{
> > - guest_modes_append_default();
> > -}
> > -
> > void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> > uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
> > uint64_t arg6, struct arm_smccc_res *res)
> > @@ -528,3 +519,12 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
> > [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)
> > : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
> > }
> > +
> > +/*
> > + * arm64 doesn't have a true default mode, so start by computing the
> > + * available IPA space and page sizes early.
> > + */
>
> It'd be better to move this comment inside the function above the
> guest_modes_append_default call.
>
Ack, will fix this in the next series.
> > +void kvm_selftest_arch_init(void)
> > +{
> > + guest_modes_append_default();
> > +}
> > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
> > index 3c83838999f5..dafe4471a6c7 100644
> > --- a/tools/testing/selftests/kvm/lib/kvm_util.c
> > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c
> > @@ -1984,4 +1984,6 @@ void __attribute((constructor)) kvm_selftest_init(void)
> > {
> > /* Tell stdout not to buffer its content. */
> > setbuf(stdout, NULL);
> > +
> > + kvm_selftest_arch_init();
> > }
> > diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
> > index 604478151212..26660dd2ba78 100644
> > --- a/tools/testing/selftests/kvm/lib/riscv/processor.c
> > +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
> > @@ -362,3 +362,7 @@ void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
> > void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
> > {
> > }
> > +
> > +void kvm_selftest_arch_init(void)
> > +{
> > +}
> > diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c
> > index 89d7340d9cbd..8654ec74009a 100644
> > --- a/tools/testing/selftests/kvm/lib/s390x/processor.c
> > +++ b/tools/testing/selftests/kvm/lib/s390x/processor.c
> > @@ -218,3 +218,7 @@ void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
> > void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
> > {
> > }
> > +
> > +void kvm_selftest_arch_init(void)
> > +{
> > +}
> > diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> > index 2e6e61bbe81b..20bf125f9363 100644
> > --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
> > +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
> > @@ -1311,3 +1311,7 @@ bool vm_is_unrestricted_guest(struct kvm_vm *vm)
> >
> > return val == 'Y';
> > }
> > +
> > +void kvm_selftest_arch_init(void)
> > +{
> > +}
> > --
> > 2.37.2.789.g6183377224-goog
> >
>
> Otherwise,
>
> Reviewed-by: Andrew Jones <[email protected]>