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ARM: 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: Russell King <rmk+kernel@armlinux.org.uk>
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 19:38:03 +01:00 committed by Christoffer Dall
parent 4897e36c8d
commit ecb5d61daa
4 changed files with 6 additions and 28 deletions
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10
arch/arm/include/asm/virt.h
View File

@ -53,7 +53,6 @@ static inline void sync_boot_mode(void)
}
void __hyp_set_vectors(unsigned long phys_vector_base);
unsigned long __hyp_get_vectors(void);
void __hyp_reset_vectors(void);
#else
#define __boot_cpu_mode (SVC_MODE)
@ -99,12 +98,11 @@ extern char __hyp_text_end[];
/* Only assembly code should need those */
#define HVC_GET_VECTORS 0
#define HVC_SET_VECTORS 1
#define HVC_SOFT_RESTART 2
#define HVC_RESET_VECTORS 3
#define HVC_SET_VECTORS 0
#define HVC_SOFT_RESTART 1
#define HVC_RESET_VECTORS 2
#define HVC_STUB_HCALL_NR 4
#define HVC_STUB_HCALL_NR 3
#endif /* __ASSEMBLY__ */

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

@ -202,12 +202,7 @@ ARM_BE8(orr r7, r7, #(1 << 25)) @ HSCTLR.EE
ENDPROC(__hyp_stub_install_secondary)
__hyp_stub_do_trap:
teq r0, #HVC_GET_VECTORS
bne 1f
mrc p15, 4, r0, c12, c0, 0 @ get HVBAR
b __hyp_stub_exit
1: teq r0, #HVC_SET_VECTORS
teq r0, #HVC_SET_VECTORS
bne 1f
mcr p15, 4, r1, c12, c0, 0 @ set HVBAR
b __hyp_stub_exit
@ -247,12 +242,6 @@ ENDPROC(__hyp_stub_do_trap)
* so you will need to set that to something sensible at the new hypervisor's
* initialisation entry point.
*/
ENTRY(__hyp_get_vectors)
mov r0, #HVC_GET_VECTORS
__HVC(0)
ret lr
ENDPROC(__hyp_get_vectors)
ENTRY(__hyp_set_vectors)
mov r1, r0
mov r0, #HVC_SET_VECTORS

7
arch/arm/kvm/init.S
View File

@ -122,12 +122,7 @@ __do_hyp_init:
eret
ENTRY(__kvm_handle_stub_hvc)
cmp r0, #HVC_GET_VECTORS
bne 1f
mrc p15, 4, r0, c12, c0, 0 @ get HVBAR
b exit
1: cmp r0, #HVC_SOFT_RESTART
cmp r0, #HVC_SOFT_RESTART
bne 1f
/* The target is expected in r1 */

4
arch/arm/kvm/interrupts.S
View File

@ -37,10 +37,6 @@
* in Hyp mode (see init_hyp_mode in arch/arm/kvm/arm.c). Return values are
* passed in r0 (strictly 32bit).
*
* A function pointer with a value of 0xffffffff has a special meaning,
* and is used to implement __hyp_get_vectors in the same way as in
* arch/arm/kernel/hyp_stub.S.
*
* The calling convention follows the standard AAPCS:
* r0 - r3: caller save
* r12: caller save