ANDROID: KVM: arm64: Expose hyp_va to modules

Modules will need to convert physical addresses in EL2 linear map
addresses, so expose hyp_va to modules.

Bug: 264070847
Change-Id: I641ab3943a029072c351f5a422e2d9d2cbb240be
Signed-off-by: Quentin Perret <qperret@google.com>

arch/arm64/include/asm/kvm_pkvm_module.h

@@ -39,6 +39,7 @@ struct pkvm_module_ops {
 	void* (*memcpy)(void *to, const void *from, size_t count);
 	void* (*memset)(void *dst, int c, size_t count);
 	phys_addr_t (*hyp_pa)(void *x);
+	void* (*hyp_va)(phys_addr_t phys);
 	unsigned long (*kern_hyp_va)(unsigned long x);
 };
 

arch/arm64/kvm/hyp/nvhe/modules.c

@@ -115,6 +115,7 @@ const struct pkvm_module_ops module_ops = {
 	.memcpy = memcpy,
 	.memset = memset,
 	.hyp_pa = hyp_virt_to_phys,
+	.hyp_va = hyp_phys_to_virt,
 	.kern_hyp_va = __kern_hyp_va,
 };