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| author | Marc Zyngier <maz@kernel.org> | 2024-02-27 11:27:54 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2024-04-12 15:58:18 +0300 |
| commit | 4bacd723705a6b6c8386daf3d5148aca66135f3c (patch) | |
| tree | 7215fa57f829f2d38e734f09ae46ae9f48b5dd4c | |
| parent | 6db55734ec4008da39e10d2fffa913fd9751ccaa (diff) | |
| download | linux-4bacd723705a6b6c8386daf3d5148aca66135f3c.tar.xz | |
KVM: arm64: Exclude mdcr_el2_host from kvm_vcpu_arch
As for the rest of the host debug state, the host copy of mdcr_el2
has little to do in the vcpu, and is better placed in the host_data
structure.
Reviewed-by : Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 5 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/include/hyp/switch.h | 4 |
2 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index d7bcb8ce1d7b..a04e69fb2884 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -555,6 +555,8 @@ struct kvm_host_data { u64 pmscr_el1; /* Self-hosted trace */ u64 trfcr_el1; + /* Values of trap registers for the host before guest entry. */ + u64 mdcr_el2; } host_debug_state; }; @@ -616,9 +618,6 @@ struct kvm_vcpu_arch { u64 mdcr_el2; u64 cptr_el2; - /* Values of trap registers for the host before guest entry. */ - u64 mdcr_el2_host; - /* Exception Information */ struct kvm_vcpu_fault_info fault; diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index ae198b84ca01..7d7de0245ed0 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -232,7 +232,7 @@ static inline void __activate_traps_common(struct kvm_vcpu *vcpu) vcpu_set_flag(vcpu, PMUSERENR_ON_CPU); } - vcpu->arch.mdcr_el2_host = read_sysreg(mdcr_el2); + *host_data_ptr(host_debug_state.mdcr_el2) = read_sysreg(mdcr_el2); write_sysreg(vcpu->arch.mdcr_el2, mdcr_el2); if (cpus_have_final_cap(ARM64_HAS_HCX)) { @@ -254,7 +254,7 @@ static inline void __activate_traps_common(struct kvm_vcpu *vcpu) static inline void __deactivate_traps_common(struct kvm_vcpu *vcpu) { - write_sysreg(vcpu->arch.mdcr_el2_host, mdcr_el2); + write_sysreg(*host_data_ptr(host_debug_state.mdcr_el2), mdcr_el2); write_sysreg(0, hstr_el2); if (kvm_arm_support_pmu_v3()) { |