From: James Morse <james.mo...@arm.com>
Most of the hyp-stub's vector entries are invalid. These are each
a unique function that branches to itself. To move these into the
vectors, merge the ventry and invalid_vector macros and give each
one a unique name.
This means we can copy the hyp-stub as it is self contained within
its vectors.
Signed-off-by: James Morse <james.mo...@arm.com>
[Fixed merging issues]
Signed-off-by: Pavel Tatashin <pasha.tatas...@soleen.com>
---
arch/arm64/kernel/hyp-stub.S | 56 +++++++++++++++---------------------
1 file changed, 23 insertions(+), 33 deletions(-)
diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S
index 572b28646005..ff329c5c074d 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -16,31 +16,38 @@
#include <asm/ptrace.h>
#include <asm/virt.h>
+.macro invalid_vector label
+SYM_CODE_START_LOCAL(\label)
+ .align 7
+ b \label
+SYM_CODE_END(\label)
+.endm
+
.text
.pushsection .hyp.text, "ax"
.align 11
SYM_CODE_START(__hyp_stub_vectors)
- ventry el2_sync_invalid // Synchronous EL2t
- ventry el2_irq_invalid // IRQ EL2t
- ventry el2_fiq_invalid // FIQ EL2t
- ventry el2_error_invalid // Error EL2t
+ invalid_vector hyp_stub_el2t_sync_invalid // Synchronous EL2t
+ invalid_vector hyp_stub_el2t_irq_invalid // IRQ EL2t
+ invalid_vector hyp_stub_el2t_fiq_invalid // FIQ EL2t
+ invalid_vector hyp_stub_el2t_error_invalid // Error EL2t
- ventry el2_sync_invalid // Synchronous EL2h
- ventry el2_irq_invalid // IRQ EL2h
- ventry el2_fiq_invalid // FIQ EL2h
- ventry el2_error_invalid // Error EL2h
+ invalid_vector hyp_stub_el2h_sync_invalid // Synchronous EL2h
+ invalid_vector hyp_stub_el2h_irq_invalid // IRQ EL2h
+ invalid_vector hyp_stub_el2h_fiq_invalid // FIQ EL2h
+ invalid_vector hyp_stub_el2h_error_invalid // Error EL2h
ventry el1_sync // Synchronous 64-bit EL1
- ventry el1_irq_invalid // IRQ 64-bit EL1
- ventry el1_fiq_invalid // FIQ 64-bit EL1
- ventry el1_error_invalid // Error 64-bit EL1
-
- ventry el1_sync_invalid // Synchronous 32-bit EL1
- ventry el1_irq_invalid // IRQ 32-bit EL1
- ventry el1_fiq_invalid // FIQ 32-bit EL1
- ventry el1_error_invalid // Error 32-bit EL1
+ invalid_vector hyp_stub_el1_irq_invalid // IRQ 64-bit EL1
+ invalid_vector hyp_stub_el1_fiq_invalid // FIQ 64-bit EL1
+ invalid_vector hyp_stub_el1_error_invalid // Error 64-bit EL1
+
+ invalid_vector hyp_stub_32b_el1_sync_invalid // Synchronous 32-bit
EL1
+ invalid_vector hyp_stub_32b_el1_irq_invalid // IRQ 32-bit EL1
+ invalid_vector hyp_stub_32b_el1_fiq_invalid // FIQ 32-bit EL1
+ invalid_vector hyp_stub_32b_el1_error_invalid // Error 32-bit EL1
.align 11
SYM_INNER_LABEL(__hyp_stub_vectors_end, SYM_L_LOCAL)
SYM_CODE_END(__hyp_stub_vectors)
@@ -173,23 +180,6 @@ SYM_CODE_END(enter_vhe)
.popsection
-.macro invalid_vector label
-SYM_CODE_START_LOCAL(\label)
- b \label
-SYM_CODE_END(\label)
-.endm
-
- invalid_vector el2_sync_invalid
- invalid_vector el2_irq_invalid
- invalid_vector el2_fiq_invalid
- invalid_vector el2_error_invalid
- invalid_vector el1_sync_invalid
- invalid_vector el1_irq_invalid
- invalid_vector el1_fiq_invalid
- invalid_vector el1_error_invalid
-
- .popsection
-
/*
* __hyp_set_vectors: Call this after boot to set the initial hypervisor
* vectors as part of hypervisor installation. On an SMP system, this should
--
2.25.1
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