From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- arch/powerpc/kvm/Makefile | 143 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 arch/powerpc/kvm/Makefile (limited to 'arch/powerpc/kvm/Makefile') diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile new file mode 100644 index 000000000..4bd9d1230 --- /dev/null +++ b/arch/powerpc/kvm/Makefile @@ -0,0 +1,143 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for Kernel-based Virtual Machine module +# + +ccflags-y := -Ivirt/kvm -Iarch/powerpc/kvm + +include $(srctree)/virt/kvm/Makefile.kvm + +common-objs-y += powerpc.o emulate_loadstore.o +obj-$(CONFIG_KVM_EXIT_TIMING) += timing.o +obj-$(CONFIG_KVM_BOOK3S_HANDLER) += book3s_exports.o + +AFLAGS_booke_interrupts.o := -I$(objtree)/$(obj) + +kvm-e500-objs := \ + $(common-objs-y) \ + emulate.o \ + booke.o \ + booke_emulate.o \ + booke_interrupts.o \ + e500.o \ + e500_mmu.o \ + e500_mmu_host.o \ + e500_emulate.o +kvm-objs-$(CONFIG_KVM_E500V2) := $(kvm-e500-objs) + +kvm-e500mc-objs := \ + $(common-objs-y) \ + emulate.o \ + booke.o \ + booke_emulate.o \ + bookehv_interrupts.o \ + e500mc.o \ + e500_mmu.o \ + e500_mmu_host.o \ + e500_emulate.o +kvm-objs-$(CONFIG_KVM_E500MC) := $(kvm-e500mc-objs) + +kvm-pr-y := \ + fpu.o \ + emulate.o \ + book3s_paired_singles.o \ + book3s_pr.o \ + book3s_pr_papr.o \ + book3s_emulate.o \ + book3s_interrupts.o \ + book3s_mmu_hpte.o \ + book3s_64_mmu_host.o \ + book3s_64_mmu.o \ + book3s_32_mmu.o + +kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \ + book3s_64_entry.o \ + tm.o + +ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE +kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \ + book3s_rmhandlers.o +endif + +kvm-hv-y += \ + book3s_hv.o \ + book3s_hv_interrupts.o \ + book3s_64_mmu_hv.o \ + book3s_64_mmu_radix.o \ + book3s_hv_nested.o + +kvm-hv-$(CONFIG_PPC_UV) += \ + book3s_hv_uvmem.o + +kvm-hv-$(CONFIG_PPC_TRANSACTIONAL_MEM) += \ + book3s_hv_tm.o + +kvm-book3s_64-builtin-xics-objs-$(CONFIG_KVM_XICS) := \ + book3s_hv_rm_xics.o + +kvm-book3s_64-builtin-tm-objs-$(CONFIG_PPC_TRANSACTIONAL_MEM) += \ + book3s_hv_tm_builtin.o + +ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE +kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \ + book3s_hv_hmi.o \ + book3s_hv_p9_entry.o \ + book3s_hv_rmhandlers.o \ + book3s_hv_rm_mmu.o \ + book3s_hv_ras.o \ + book3s_hv_builtin.o \ + book3s_hv_p9_perf.o \ + book3s_hv_nestedv2.o \ + guest-state-buffer.o \ + $(kvm-book3s_64-builtin-tm-objs-y) \ + $(kvm-book3s_64-builtin-xics-objs-y) + +obj-$(CONFIG_GUEST_STATE_BUFFER_TEST) += test-guest-state-buffer.o +endif + +kvm-book3s_64-objs-$(CONFIG_KVM_XICS) += \ + book3s_xics.o + +kvm-book3s_64-objs-$(CONFIG_KVM_XIVE) += book3s_xive.o book3s_xive_native.o +kvm-book3s_64-objs-$(CONFIG_SPAPR_TCE_IOMMU) += book3s_64_vio.o + +kvm-book3s_64-module-objs := \ + $(common-objs-y) \ + book3s.o \ + book3s_rtas.o \ + $(kvm-book3s_64-objs-y) + +kvm-objs-$(CONFIG_KVM_BOOK3S_64) := $(kvm-book3s_64-module-objs) + +kvm-book3s_32-objs := \ + $(common-objs-y) \ + emulate.o \ + fpu.o \ + book3s_paired_singles.o \ + book3s.o \ + book3s_pr.o \ + book3s_emulate.o \ + book3s_interrupts.o \ + book3s_mmu_hpte.o \ + book3s_32_mmu_host.o \ + book3s_32_mmu.o +kvm-objs-$(CONFIG_KVM_BOOK3S_32) := $(kvm-book3s_32-objs) + +kvm-objs-$(CONFIG_KVM_MPIC) += mpic.o + +kvm-y += $(kvm-objs-m) $(kvm-objs-y) + +obj-$(CONFIG_KVM_E500V2) += kvm.o +obj-$(CONFIG_KVM_E500MC) += kvm.o +obj-$(CONFIG_KVM_BOOK3S_64) += kvm.o +obj-$(CONFIG_KVM_BOOK3S_32) += kvm.o + +obj-$(CONFIG_KVM_BOOK3S_64_PR) += kvm-pr.o +obj-$(CONFIG_KVM_BOOK3S_64_HV) += kvm-hv.o + +obj-y += $(kvm-book3s_64-builtin-objs-y) + +# KVM does a lot in real-mode, and 64-bit Book3S KASAN doesn't support that +ifdef CONFIG_PPC_BOOK3S_64 +KASAN_SANITIZE := n +endif -- cgit v1.3.1