Commit 0b51c547 authored by Marc Zyngier's avatar Marc Zyngier Committed by Christoffer Dall
Browse files

arm64: hyp-stub/KVM: Kill __hyp_get_vectors 



Nobody is using __hyp_get_vectors anymore, so let's remove both
implementations (hyp-stub and KVM).

Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <cdall@linaro.org>
parent ecb5d61d

arch/arm64/include/asm/virt.h

+4 −8
Original line number Diff line number Diff line
@@ -29,28 +29,25 @@ 
 * indirection of a function call (as implemented in hyp-stub.S).

 */



/* HVC_GET_VECTORS - Return the value of the vbar_el2 register. */

#define HVC_GET_VECTORS 0



/*

 * HVC_SET_VECTORS - Set the value of the vbar_el2 register.

 *

 * @x1: Physical address of the new vector table.

 */

#define HVC_SET_VECTORS 1

#define HVC_SET_VECTORS 0



/*

 * HVC_SOFT_RESTART - CPU soft reset, used by the cpu_soft_restart routine.

 */

#define HVC_SOFT_RESTART 2

#define HVC_SOFT_RESTART 1



/*

 * HVC_RESET_VECTORS - Restore the vectors to the original HYP stubs

 */

#define HVC_RESET_VECTORS 3

#define HVC_RESET_VECTORS 2



/* Max number of HYP stub hypercalls */

#define HVC_STUB_HCALL_NR 4

#define HVC_STUB_HCALL_NR 3



/* Error returned when an invalid stub number is passed into x0 */

#define HVC_STUB_ERR	0xbadca11
@@ -77,7 +74,6 @@ 
extern u32 __boot_cpu_mode[2];



void __hyp_set_vectors(phys_addr_t phys_vector_base);

phys_addr_t __hyp_get_vectors(void);

void __hyp_reset_vectors(void);



/* Reports the availability of HYP mode */

arch/arm64/kernel/hyp-stub.S

+1 −12
Original line number Diff line number Diff line
@@ -55,12 +55,7 @@ ENDPROC(__hyp_stub_vectors) 
	.align 11



el1_sync:

	cmp	x0, #HVC_GET_VECTORS

	b.ne	1f

	mrs	x0, vbar_el2

	b	9f



1:	cmp	x0, #HVC_SET_VECTORS

	cmp	x0, #HVC_SET_VECTORS

	b.ne	2f

	msr	vbar_el2, x1

	b	9f
@@ -118,12 +113,6 @@ ENDPROC(\label) 
 * initialisation entry point.

 */



ENTRY(__hyp_get_vectors)

	mov	x0, #HVC_GET_VECTORS

	hvc	#0

	ret

ENDPROC(__hyp_get_vectors)



ENTRY(__hyp_set_vectors)

	mov	x1, x0

	mov	x0, #HVC_SET_VECTORS

arch/arm64/kvm/hyp-init.S

+1 −6
Original line number Diff line number Diff line
@@ -124,12 +124,7 @@ __do_hyp_init: 
ENDPROC(__kvm_hyp_init)



ENTRY(__kvm_handle_stub_hvc)

	cmp	x0, #HVC_GET_VECTORS

	b.ne	1f

	mrs	x0, vbar_el2

	b	exit



1:	cmp	x0, #HVC_SOFT_RESTART

	cmp	x0, #HVC_SOFT_RESTART

	b.ne	1f



	/* This is where we're about to jump, staying at EL2 */

arch/arm64/kvm/hyp.S

+1 −1
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ 
 * passed in x0.

 *

 * A function pointer with a value less than 0xfff has a special meaning,

 * and is used to implement __hyp_get_vectors in the same way as in

 * and is used to implement hyp stubs in the same way as in

 * arch/arm64/kernel/hyp_stub.S.

 */

ENTRY(__kvm_call_hyp)

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