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Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Peter Zijlstra , Andy Lutomirski , "Paul E. McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, loongarch@lists.linux.dev, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-hyperv@vger.kernel.org, rcu@vger.kernel.org, Nuno Das Neves , Mukesh R Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Rename the "kvm" entry code files and Kconfigs to use generic "virt" nomenclature so that the code can be reused by other hypervisors (or rather, their root/dom0 partition drivers), without incorrectly suggesting the code somehow relies on and/or involves KVM. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Joel Fernandes Reviewed-by: Thomas Gleixner --- MAINTAINERS | 2 +- arch/arm64/kvm/Kconfig | 2 +- arch/loongarch/kvm/Kconfig | 2 +- arch/riscv/kvm/Kconfig | 2 +- arch/x86/kvm/Kconfig | 2 +- include/linux/{entry-kvm.h =3D> entry-virt.h} | 8 ++++---- include/linux/kvm_host.h | 6 +++--- include/linux/rcupdate.h | 2 +- kernel/entry/Makefile | 2 +- kernel/entry/{kvm.c =3D> virt.c} | 2 +- kernel/rcu/tree.c | 6 +++--- virt/kvm/Kconfig | 2 +- 12 files changed, 19 insertions(+), 19 deletions(-) rename include/linux/{entry-kvm.h =3D> entry-virt.h} (94%) rename kernel/entry/{kvm.c =3D> virt.c} (97%) diff --git a/MAINTAINERS b/MAINTAINERS index fe168477caa4..c255048333f0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10200,7 +10200,7 @@ L: linux-kernel@vger.kernel.org S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/entry F: include/linux/entry-common.h -F: include/linux/entry-kvm.h +F: include/linux/entry-virt.h F: include/linux/irq-entry-common.h F: kernel/entry/ =20 diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 713248f240e0..6f4fc3caa31a 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -25,7 +25,7 @@ menuconfig KVM select HAVE_KVM_CPU_RELAX_INTERCEPT select KVM_MMIO select KVM_GENERIC_DIRTYLOG_READ_PROTECT - select KVM_XFER_TO_GUEST_WORK + select VIRT_XFER_TO_GUEST_WORK select KVM_VFIO select HAVE_KVM_DIRTY_RING_ACQ_REL select NEED_KVM_DIRTY_RING_WITH_BITMAP diff --git a/arch/loongarch/kvm/Kconfig b/arch/loongarch/kvm/Kconfig index 40eea6da7c25..ae64bbdf83a7 100644 --- a/arch/loongarch/kvm/Kconfig +++ b/arch/loongarch/kvm/Kconfig @@ -31,7 +31,7 @@ config KVM select KVM_GENERIC_HARDWARE_ENABLING select KVM_GENERIC_MMU_NOTIFIER select KVM_MMIO - select KVM_XFER_TO_GUEST_WORK + select VIRT_XFER_TO_GUEST_WORK select SCHED_INFO select GUEST_PERF_EVENTS if PERF_EVENTS help diff --git a/arch/riscv/kvm/Kconfig b/arch/riscv/kvm/Kconfig index 5a62091b0809..c50328212917 100644 --- a/arch/riscv/kvm/Kconfig +++ b/arch/riscv/kvm/Kconfig @@ -30,7 +30,7 @@ config KVM select KVM_GENERIC_DIRTYLOG_READ_PROTECT select KVM_GENERIC_HARDWARE_ENABLING select KVM_MMIO - select KVM_XFER_TO_GUEST_WORK + select VIRT_XFER_TO_GUEST_WORK select KVM_GENERIC_MMU_NOTIFIER select SCHED_INFO select GUEST_PERF_EVENTS if PERF_EVENTS diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 2c86673155c9..f81074b0c0a8 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -40,7 +40,7 @@ config KVM_X86 select HAVE_KVM_MSI select HAVE_KVM_CPU_RELAX_INTERCEPT select HAVE_KVM_NO_POLL - select KVM_XFER_TO_GUEST_WORK + select VIRT_XFER_TO_GUEST_WORK select KVM_GENERIC_DIRTYLOG_READ_PROTECT select KVM_VFIO select HAVE_KVM_PM_NOTIFIER if PM diff --git a/include/linux/entry-kvm.h b/include/linux/entry-virt.h similarity index 94% rename from include/linux/entry-kvm.h rename to include/linux/entry-virt.h index 3644de7e6019..42c89e3e5ca7 100644 --- a/include/linux/entry-kvm.h +++ b/include/linux/entry-virt.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __LINUX_ENTRYKVM_H -#define __LINUX_ENTRYKVM_H +#ifndef __LINUX_ENTRYVIRT_H +#define __LINUX_ENTRYVIRT_H =20 #include #include @@ -10,7 +10,7 @@ #include =20 /* Transfer to guest mode work */ -#ifdef CONFIG_KVM_XFER_TO_GUEST_WORK +#ifdef CONFIG_VIRT_XFER_TO_GUEST_WORK =20 #ifndef ARCH_XFER_TO_GUEST_MODE_WORK # define ARCH_XFER_TO_GUEST_MODE_WORK (0) @@ -90,6 +90,6 @@ static inline bool xfer_to_guest_mode_work_pending(void) lockdep_assert_irqs_disabled(); return __xfer_to_guest_mode_work_pending(); } -#endif /* CONFIG_KVM_XFER_TO_GUEST_WORK */ +#endif /* CONFIG_VIRT_XFER_TO_GUEST_WORK */ =20 #endif diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 598b9473e46d..70ac2267d5d0 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2,7 +2,7 @@ #ifndef __KVM_HOST_H #define __KVM_HOST_H =20 -#include +#include #include #include #include @@ -2444,7 +2444,7 @@ static inline int kvm_arch_vcpu_run_pid_change(struct= kvm_vcpu *vcpu) } #endif /* CONFIG_HAVE_KVM_VCPU_RUN_PID_CHANGE */ =20 -#ifdef CONFIG_KVM_XFER_TO_GUEST_WORK +#ifdef CONFIG_VIRT_XFER_TO_GUEST_WORK static inline void kvm_handle_signal_exit(struct kvm_vcpu *vcpu) { vcpu->run->exit_reason =3D KVM_EXIT_INTR; @@ -2461,7 +2461,7 @@ static inline int kvm_xfer_to_guest_mode_handle_work(= struct kvm_vcpu *vcpu) } return r; } -#endif /* CONFIG_KVM_XFER_TO_GUEST_WORK */ +#endif /* CONFIG_VIRT_XFER_TO_GUEST_WORK */ =20 /* * If more than one page is being (un)accounted, @virt must be the address= of diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 120536f4c6eb..1e1f3aa375d9 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -129,7 +129,7 @@ static inline void rcu_sysrq_start(void) { } static inline void rcu_sysrq_end(void) { } #endif /* #else #ifdef CONFIG_RCU_STALL_COMMON */ =20 -#if defined(CONFIG_NO_HZ_FULL) && (!defined(CONFIG_GENERIC_ENTRY) || !defi= ned(CONFIG_KVM_XFER_TO_GUEST_WORK)) +#if defined(CONFIG_NO_HZ_FULL) && (!defined(CONFIG_GENERIC_ENTRY) || !defi= ned(CONFIG_VIRT_XFER_TO_GUEST_WORK)) void rcu_irq_work_resched(void); #else static __always_inline void rcu_irq_work_resched(void) { } diff --git a/kernel/entry/Makefile b/kernel/entry/Makefile index 77fcd83dd663..2333d70802e4 100644 --- a/kernel/entry/Makefile +++ b/kernel/entry/Makefile @@ -14,4 +14,4 @@ CFLAGS_common.o +=3D -fno-stack-protector =20 obj-$(CONFIG_GENERIC_IRQ_ENTRY) +=3D common.o obj-$(CONFIG_GENERIC_SYSCALL) +=3D syscall-common.o syscall_user_dispatc= h.o -obj-$(CONFIG_KVM_XFER_TO_GUEST_WORK) +=3D kvm.o +obj-$(CONFIG_VIRT_XFER_TO_GUEST_WORK) +=3D virt.o diff --git a/kernel/entry/kvm.c b/kernel/entry/virt.c similarity index 97% rename from kernel/entry/kvm.c rename to kernel/entry/virt.c index 6fc762eaacca..c52f99249763 100644 --- a/kernel/entry/kvm.c +++ b/kernel/entry/virt.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 =20 -#include +#include =20 static int xfer_to_guest_mode_work(unsigned long ti_work) { diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 174ee243b349..995489b72535 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -573,7 +573,7 @@ void rcutorture_format_gp_seqs(unsigned long long seqs,= char *cp, size_t len) } EXPORT_SYMBOL_GPL(rcutorture_format_gp_seqs); =20 -#if defined(CONFIG_NO_HZ_FULL) && (!defined(CONFIG_GENERIC_ENTRY) || !defi= ned(CONFIG_KVM_XFER_TO_GUEST_WORK)) +#if defined(CONFIG_NO_HZ_FULL) && (!defined(CONFIG_GENERIC_ENTRY) || !defi= ned(CONFIG_VIRT_XFER_TO_GUEST_WORK)) /* * An empty function that will trigger a reschedule on * IRQ tail once IRQs get re-enabled on userspace/guest resume. @@ -602,7 +602,7 @@ noinstr void rcu_irq_work_resched(void) if (IS_ENABLED(CONFIG_GENERIC_ENTRY) && !(current->flags & PF_VCPU)) return; =20 - if (IS_ENABLED(CONFIG_KVM_XFER_TO_GUEST_WORK) && (current->flags & PF_VCP= U)) + if (IS_ENABLED(CONFIG_VIRT_XFER_TO_GUEST_WORK) && (current->flags & PF_VC= PU)) return; =20 instrumentation_begin(); @@ -611,7 +611,7 @@ noinstr void rcu_irq_work_resched(void) } instrumentation_end(); } -#endif /* #if defined(CONFIG_NO_HZ_FULL) && (!defined(CONFIG_GENERIC_ENTRY= ) || !defined(CONFIG_KVM_XFER_TO_GUEST_WORK)) */ +#endif /* #if defined(CONFIG_NO_HZ_FULL) && (!defined(CONFIG_GENERIC_ENTRY= ) || !defined(CONFIG_VIRT_XFER_TO_GUEST_WORK)) */ =20 #ifdef CONFIG_PROVE_RCU /** diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 727b542074e7..ce843db53831 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -87,7 +87,7 @@ config HAVE_KVM_VCPU_RUN_PID_CHANGE config HAVE_KVM_NO_POLL bool =20 -config KVM_XFER_TO_GUEST_WORK +config VIRT_XFER_TO_GUEST_WORK bool =20 config HAVE_KVM_PM_NOTIFIER --=20 2.51.0.268.g9569e192d0-goog