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authorMarc Zyngier <marc.zyngier@arm.com>2016-06-30 18:40:44 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-07-03 23:41:27 +0200
commit3421e9d88d7ae70fbc8c903e44a5acace8ae2d29 (patch)
tree5c01693941098bc3d6a20d5ee4b0c88c2d895e2e /arch/arm64/kvm/hyp/entry.S
parentarm/arm64: KVM: Always have merged page tables (diff)
downloadlinux-dev-3421e9d88d7ae70fbc8c903e44a5acace8ae2d29.tar.xz
linux-dev-3421e9d88d7ae70fbc8c903e44a5acace8ae2d29.zip
arm64: KVM: Simplify HYP init/teardown
Now that we only have the "merged page tables" case to deal with, there is a bunch of things we can simplify in the HYP code (both at init and teardown time). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/kvm/hyp/entry.S')
-rw-r--r--arch/arm64/kvm/hyp/entry.S19
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S
index 70254a65bd5b..ce9e5e5f28cf 100644
--- a/arch/arm64/kvm/hyp/entry.S
+++ b/arch/arm64/kvm/hyp/entry.S
@@ -164,22 +164,3 @@ alternative_endif
eret
ENDPROC(__fpsimd_guest_restore)
-
-/*
- * When using the extended idmap, we don't have a trampoline page we can use
- * while we switch pages tables during __kvm_hyp_reset. Accessing the idmap
- * directly would be ideal, but if we're using the extended idmap then the
- * idmap is located above HYP_PAGE_OFFSET, and the address will be masked by
- * kvm_call_hyp using kern_hyp_va.
- *
- * x0: HYP boot pgd
- * x1: HYP phys_idmap_start
- */
-ENTRY(__extended_idmap_trampoline)
- mov x4, x1
- adr_l x3, __kvm_hyp_reset
-
- /* insert __kvm_hyp_reset()s offset into phys_idmap_start */
- bfi x4, x3, #0, #PAGE_SHIFT
- br x4
-ENDPROC(__extended_idmap_trampoline)