Replace places that contain logic like this:
is_hyp_mode_available() && !is_kernel_in_hyp_mode()
With a dedicated boolean function is_hyp_nvhe(). This will be needed
later in kexec in order to sooner switch back to EL2.
Suggested-by: James Morse <james.morse@xxxxxxx>
Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
---
arch/arm64/include/asm/virt.h | 5 +++++
arch/arm64/kernel/cpu-reset.h | 3 +--
arch/arm64/kernel/hibernate.c | 2 +-
arch/arm64/kernel/sdei.c | 2 +-
4 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index 7379f35ae2c6..a9457e96203c 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -128,6 +128,11 @@ static __always_inline bool is_protected_kvm_enabled(void)
return cpus_have_final_cap(ARM64_KVM_PROTECTED_MODE);
}
+static inline bool is_hyp_nvhe(void)
+{
+ return is_hyp_mode_available() && !is_kernel_in_hyp_mode();
+}
+
#endif /* __ASSEMBLY__ */
#endif /* ! __ASM__VIRT_H */
diff --git a/arch/arm64/kernel/cpu-reset.h b/arch/arm64/kernel/cpu-reset.h
index 9a7b1262ef17..81b3d0fe7a63 100644
--- a/arch/arm64/kernel/cpu-reset.h
+++ b/arch/arm64/kernel/cpu-reset.h
@@ -20,8 +20,7 @@ static inline void __noreturn __nocfi cpu_soft_restart(unsigned long entry,
{
typeof(__cpu_soft_restart) *restart;
- unsigned long el2_switch = !is_kernel_in_hyp_mode() &&
- is_hyp_mode_available();
+ unsigned long el2_switch = is_hyp_nvhe();
restart = (void *)__pa_symbol(function_nocfi(__cpu_soft_restart));
cpu_install_idmap();
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index 46a0b4d6e251..4c9533f4c0c4 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -49,7 +49,7 @@
extern int in_suspend;
/* Do we need to reset el2? */
-#define el2_reset_needed() (is_hyp_mode_available() && !is_kernel_in_hyp_mode())
+#define el2_reset_needed() (is_hyp_nvhe())
/* temporary el2 vectors in the __hibernate_exit_text section. */
extern char hibernate_el2_vectors[];
diff --git a/arch/arm64/kernel/sdei.c b/arch/arm64/kernel/sdei.c
index 47f77d1234cb..d20620a1c51a 100644
--- a/arch/arm64/kernel/sdei.c
+++ b/arch/arm64/kernel/sdei.c
@@ -202,7 +202,7 @@ unsigned long sdei_arch_get_entry_point(int conduit)
* dropped to EL1 because we don't support VHE, then we can't support
* SDEI.
*/
- if (is_hyp_mode_available() && !is_kernel_in_hyp_mode()) {
+ if (is_hyp_nvhe()) {
pr_err("Not supported on this hardware/boot configuration\n");
goto out_err;
}
--
2.25.1
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