[PATCH v5 23/36] KVM: arm64: Refactor __load_guest_stage2()
flat view
STALE2039d
REVIEWED: 11 (11M)
From: Quentin Perret <hidden>
Date: 2021-03-15 14:53:26
Also in:
kvmarm, lkml
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
Revision v5 of 3 in this series; 1 review trailer (1 from subsystem maintainers).
Revisions (3)
- v3 [diff vs current]
- v4 [diff vs current]
- v5 current
Refactor __load_guest_stage2() to introduce __load_stage2() which will be re-used when loading the host stage 2. Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Quentin Perret <redacted> --- arch/arm64/include/asm/kvm_mmu.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 6f743e20cb06..9d64fa73ee67 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h@@ -270,9 +270,9 @@ static __always_inline u64 kvm_get_vttbr(struct kvm_s2_mmu *mmu) * Must be called from hyp code running at EL2 with an updated VTTBR * and interrupts disabled. */ -static __always_inline void __load_guest_stage2(struct kvm_s2_mmu *mmu) +static __always_inline void __load_stage2(struct kvm_s2_mmu *mmu, unsigned long vtcr) { - write_sysreg(kern_hyp_va(mmu->arch)->vtcr, vtcr_el2); + write_sysreg(vtcr, vtcr_el2); write_sysreg(kvm_get_vttbr(mmu), vttbr_el2); /*
@@ -283,6 +283,11 @@ static __always_inline void __load_guest_stage2(struct kvm_s2_mmu *mmu) asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_SPECULATIVE_AT)); } +static __always_inline void __load_guest_stage2(struct kvm_s2_mmu *mmu) +{ + __load_stage2(mmu, kern_hyp_va(mmu->arch)->vtcr); +} + static inline struct kvm *kvm_s2_mmu_to_kvm(struct kvm_s2_mmu *mmu) { return container_of(mmu->arch, struct kvm, arch);
--
2.31.0.rc2.261.g7f71774620-goog
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