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arm64: hyp-stub/KVM: Kill __hyp_get_vectors

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

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
This commit is contained in:
Marc Zyngier 2017-04-03 19:38:04 +01:00 committed by Christoffer Dall
parent ecb5d61daa
commit 0b51c547fd
4 changed files with 7 additions and 27 deletions
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12
arch/arm64/include/asm/virt.h
View File

@ -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 */

13
arch/arm64/kernel/hyp-stub.S
View File

@ -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

7
arch/arm64/kvm/hyp-init.S
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@ -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 */

2
arch/arm64/kvm/hyp.S
View File

@ -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)