Commit 0ba5b4ba authored by Marc Zyngier's avatar Marc Zyngier Committed by Will Deacon
Browse files

firmware/smccc: Call arch-specific hook on discovering KVM services 



arm64 will soon require its own callback to initialise services
that are only available on this architecture. Introduce a hook
that can be overloaded by the architecture.

Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240830130150.8568-2-will@kernel.org


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 7c626ce4

arch/arm/include/asm/hypervisor.h

+2 −0
Original line number Diff line number Diff line
@@ -7,4 +7,6 @@ 
void kvm_init_hyp_services(void);

bool kvm_arm_hyp_service_available(u32 func_id);



static inline void kvm_arch_init_hyp_services(void) { };



#endif

arch/arm64/include/asm/hypervisor.h

+4 −0
Original line number Diff line number Diff line
@@ -7,4 +7,8 @@ 
void kvm_init_hyp_services(void);

bool kvm_arm_hyp_service_available(u32 func_id);



static inline void kvm_arch_init_hyp_services(void)

{

};



#endif

drivers/firmware/smccc/kvm_guest.c

+2 −0
Original line number Diff line number Diff line
@@ -39,6 +39,8 @@ void __init kvm_init_hyp_services(void) 


	pr_info("hypervisor services detected (0x%08lx 0x%08lx 0x%08lx 0x%08lx)\n",

		 res.a3, res.a2, res.a1, res.a0);



	kvm_arch_init_hyp_services();

}



bool kvm_arm_hyp_service_available(u32 func_id)