From: "Huang, Kai" <kai.huang@intel.com>
To: "chenhuacai@kernel.org" <chenhuacai@kernel.org>,
"maz@kernel.org" <maz@kernel.org>,
"frankja@linux.ibm.com" <frankja@linux.ibm.com>,
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"aou@eecs.berkeley.edu" <aou@eecs.berkeley.edu>,
"palmer@dabbelt.com" <palmer@dabbelt.com>, "Christopherson,,
Sean" <seanjc@google.com>,
"paul.walmsley@sifive.com" <paul.walmsley@sifive.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
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"vkuznets@redhat.com" <vkuznets@redhat.com>,
"anup@brainfault.org" <anup@brainfault.org>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"david@redhat.com" <david@redhat.com>,
"Yao, Yuan" <yuan.yao@intel.com>,
"linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>,
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"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
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<linux-arm-kernel@lists.infradead.org>,
"Yamahata, Isaku" <isaku.yamahata@intel.com>,
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"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"oliver.upton@linux.dev" <oliver.upton@linux.dev>,
"james.morse@arm.com" <james.morse@arm.com>,
"kvm-riscv@lists.infradead.org" <kvm-riscv@lists.infradead.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v2 32/50] KVM: Drop kvm_arch_check_processor_compat() hook
Date: Fri, 2 Dec 2022 12:18:09 +0000 [thread overview]
Message-ID: <0df9141e73f5a1b2571c0ed491495058e09b26ed.camel@intel.com> (raw)
In-Reply-To: <20221130230934.1014142-33-seanjc@google.com>
On Wed, 2022-11-30 at 23:09 +0000, Sean Christopherson wrote:
> Drop kvm_arch_check_processor_compat() and its support code now that all
> architecture implementations are nops.
>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Reviewed-by: Eric Farman <farman@linux.ibm.com> # s390
> Acked-by: Anup Patel <anup@brainfault.org>
For x86,
Reviewed-by: Kai Huang <kai.huang@intel.com>
> ---
> arch/arm64/kvm/arm.c | 7 +------
> arch/mips/kvm/mips.c | 7 +------
> arch/powerpc/kvm/book3s.c | 2 +-
> arch/powerpc/kvm/e500.c | 2 +-
> arch/powerpc/kvm/e500mc.c | 2 +-
> arch/powerpc/kvm/powerpc.c | 5 -----
> arch/riscv/kvm/main.c | 7 +------
> arch/s390/kvm/kvm-s390.c | 7 +------
> arch/x86/kvm/svm/svm.c | 4 ++--
> arch/x86/kvm/vmx/vmx.c | 4 ++--
> arch/x86/kvm/x86.c | 5 -----
> include/linux/kvm_host.h | 4 +---
> virt/kvm/kvm_main.c | 24 +-----------------------
> 13 files changed, 13 insertions(+), 67 deletions(-)
>
> diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
> index 936ef7d1ea94..e915b1d9f2cd 100644
> --- a/arch/arm64/kvm/arm.c
> +++ b/arch/arm64/kvm/arm.c
> @@ -63,11 +63,6 @@ int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
> return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
> }
>
> -int kvm_arch_check_processor_compat(void *opaque)
> -{
> - return 0;
> -}
> -
> int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
> struct kvm_enable_cap *cap)
> {
> @@ -2273,7 +2268,7 @@ static __init int kvm_arm_init(void)
> * FIXME: Do something reasonable if kvm_init() fails after pKVM
> * hypervisor protection is finalized.
> */
> - err = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> + err = kvm_init(sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> if (err)
> goto out_subs;
>
> diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
> index 3cade648827a..36c8991b5d39 100644
> --- a/arch/mips/kvm/mips.c
> +++ b/arch/mips/kvm/mips.c
> @@ -135,11 +135,6 @@ void kvm_arch_hardware_disable(void)
> kvm_mips_callbacks->hardware_disable();
> }
>
> -int kvm_arch_check_processor_compat(void *opaque)
> -{
> - return 0;
> -}
> -
> extern void kvm_init_loongson_ipi(struct kvm *kvm);
>
> int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
> @@ -1636,7 +1631,7 @@ static int __init kvm_mips_init(void)
>
> register_die_notifier(&kvm_mips_csr_die_notifier);
>
> - ret = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> + ret = kvm_init(sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> if (ret) {
> unregister_die_notifier(&kvm_mips_csr_die_notifier);
> return ret;
> diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
> index 87283a0e33d8..57f4e7896d67 100644
> --- a/arch/powerpc/kvm/book3s.c
> +++ b/arch/powerpc/kvm/book3s.c
> @@ -1052,7 +1052,7 @@ static int kvmppc_book3s_init(void)
> {
> int r;
>
> - r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> + r = kvm_init(sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> if (r)
> return r;
> #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
> diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
> index 0ea61190ec04..b0f695428733 100644
> --- a/arch/powerpc/kvm/e500.c
> +++ b/arch/powerpc/kvm/e500.c
> @@ -531,7 +531,7 @@ static int __init kvmppc_e500_init(void)
> flush_icache_range(kvmppc_booke_handlers, kvmppc_booke_handlers +
> ivor[max_ivor] + handler_len);
>
> - r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
> + r = kvm_init(sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
> if (r)
> goto err_out;
> kvm_ops_e500.owner = THIS_MODULE;
> diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
> index 795667f7ebf0..611532a0dedc 100644
> --- a/arch/powerpc/kvm/e500mc.c
> +++ b/arch/powerpc/kvm/e500mc.c
> @@ -404,7 +404,7 @@ static int __init kvmppc_e500mc_init(void)
> */
> kvmppc_init_lpid(KVMPPC_NR_LPIDS/threads_per_core);
>
> - r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
> + r = kvm_init(sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
> if (r)
> goto err_out;
> kvm_ops_e500mc.owner = THIS_MODULE;
> diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
> index 01d0f9935e6c..f5b4ff6bfc89 100644
> --- a/arch/powerpc/kvm/powerpc.c
> +++ b/arch/powerpc/kvm/powerpc.c
> @@ -440,11 +440,6 @@ int kvm_arch_hardware_enable(void)
> return 0;
> }
>
> -int kvm_arch_check_processor_compat(void *opaque)
> -{
> - return 0;
> -}
> -
> int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
> {
> struct kvmppc_ops *kvm_ops = NULL;
> diff --git a/arch/riscv/kvm/main.c b/arch/riscv/kvm/main.c
> index 4710a6751687..34c3dece6990 100644
> --- a/arch/riscv/kvm/main.c
> +++ b/arch/riscv/kvm/main.c
> @@ -20,11 +20,6 @@ long kvm_arch_dev_ioctl(struct file *filp,
> return -EINVAL;
> }
>
> -int kvm_arch_check_processor_compat(void *opaque)
> -{
> - return 0;
> -}
> -
> int kvm_arch_hardware_enable(void)
> {
> unsigned long hideleg, hedeleg;
> @@ -110,6 +105,6 @@ static int __init riscv_kvm_init(void)
>
> kvm_info("VMID %ld bits available\n", kvm_riscv_gstage_vmid_bits());
>
> - return kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> + return kvm_init(sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> }
> module_init(riscv_kvm_init);
> diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
> index 25b08b956888..7ad8252e92c2 100644
> --- a/arch/s390/kvm/kvm-s390.c
> +++ b/arch/s390/kvm/kvm-s390.c
> @@ -262,11 +262,6 @@ int kvm_arch_hardware_enable(void)
> return 0;
> }
>
> -int kvm_arch_check_processor_compat(void *opaque)
> -{
> - return 0;
> -}
> -
> /* forward declarations */
> static void kvm_gmap_notifier(struct gmap *gmap, unsigned long start,
> unsigned long end);
> @@ -5716,7 +5711,7 @@ static int __init kvm_s390_init(void)
> if (r)
> return r;
>
> - r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> + r = kvm_init(sizeof(struct kvm_vcpu), 0, THIS_MODULE);
> if (r) {
> __kvm_s390_exit();
> return r;
> diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
> index d7ea1c1175c2..d9a54590591d 100644
> --- a/arch/x86/kvm/svm/svm.c
> +++ b/arch/x86/kvm/svm/svm.c
> @@ -5103,8 +5103,8 @@ static int __init svm_init(void)
> * Common KVM initialization _must_ come last, after this, /dev/kvm is
> * exposed to userspace!
> */
> - r = kvm_init(NULL, sizeof(struct vcpu_svm),
> - __alignof__(struct vcpu_svm), THIS_MODULE);
> + r = kvm_init(sizeof(struct vcpu_svm), __alignof__(struct vcpu_svm),
> + THIS_MODULE);
> if (r)
> goto err_kvm_init;
>
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 8deb1bd60c10..b6f08a0a1435 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -8592,8 +8592,8 @@ static int __init vmx_init(void)
> * Common KVM initialization _must_ come last, after this, /dev/kvm is
> * exposed to userspace!
> */
> - r = kvm_init(NULL, sizeof(struct vcpu_vmx),
> - __alignof__(struct vcpu_vmx), THIS_MODULE);
> + r = kvm_init(sizeof(struct vcpu_vmx), __alignof__(struct vcpu_vmx),
> + THIS_MODULE);
> if (r)
> goto err_kvm_init;
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 3571bc968cf8..566156b34314 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -12071,11 +12071,6 @@ void kvm_arch_hardware_disable(void)
> drop_user_return_notifiers();
> }
>
> -int kvm_arch_check_processor_compat(void *opaque)
> -{
> - return 0;
> -}
> -
> bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu)
> {
> return vcpu->kvm->arch.bsp_vcpu_id == vcpu->vcpu_id;
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index 7dde28333e7c..616e8e90558b 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -953,8 +953,7 @@ static inline void kvm_irqfd_exit(void)
> {
> }
> #endif
> -int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
> - struct module *module);
> +int kvm_init(unsigned vcpu_size, unsigned vcpu_align, struct module *module);
> void kvm_exit(void);
>
> void kvm_get_kvm(struct kvm *kvm);
> @@ -1460,7 +1459,6 @@ static inline void kvm_create_vcpu_debugfs(struct kvm_vcpu *vcpu) {}
>
> int kvm_arch_hardware_enable(void);
> void kvm_arch_hardware_disable(void);
> -int kvm_arch_check_processor_compat(void *opaque);
> int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
> bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu);
> int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu);
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index a4a10a0b322f..3900bd3d75cb 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -5833,36 +5833,14 @@ void kvm_unregister_perf_callbacks(void)
> }
> #endif
>
> -struct kvm_cpu_compat_check {
> - void *opaque;
> - int *ret;
> -};
> -
> -static void check_processor_compat(void *data)
> +int kvm_init(unsigned vcpu_size, unsigned vcpu_align, struct module *module)
> {
> - struct kvm_cpu_compat_check *c = data;
> -
> - *c->ret = kvm_arch_check_processor_compat(c->opaque);
> -}
> -
> -int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
> - struct module *module)
> -{
> - struct kvm_cpu_compat_check c;
> int r;
> int cpu;
>
> if (!zalloc_cpumask_var(&cpus_hardware_enabled, GFP_KERNEL))
> return -ENOMEM;
>
> - c.ret = &r;
> - c.opaque = opaque;
> - for_each_online_cpu(cpu) {
> - smp_call_function_single(cpu, check_processor_compat, &c, 1);
> - if (r < 0)
> - goto out_free_2;
> - }
> -
> r = cpuhp_setup_state_nocalls(CPUHP_AP_KVM_STARTING, "kvm/cpu:starting",
> kvm_starting_cpu, kvm_dying_cpu);
> if (r)
next prev parent reply other threads:[~2022-12-02 12:19 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-30 23:08 [PATCH v2 00/50] KVM: Rework kvm_init() and hardware enabling Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 01/50] KVM: Register /dev/kvm as the _very_ last thing during initialization Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 02/50] KVM: Initialize IRQ FD after arch hardware setup Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 03/50] KVM: Allocate cpus_hardware_enabled " Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 04/50] KVM: Teardown VFIO ops earlier in kvm_exit() Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 05/50] KVM: s390: Unwind kvm_arch_init() piece-by-piece() if a step fails Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 06/50] KVM: s390: Move hardware setup/unsetup to init/exit Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 07/50] KVM: x86: Do timer initialization after XCR0 configuration Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 08/50] KVM: x86: Move hardware setup/unsetup to init/exit Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 09/50] KVM: Drop arch hardware (un)setup hooks Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 10/50] KVM: VMX: Reset eVMCS controls in VP assist page during hardware disabling Sean Christopherson
2022-12-01 15:42 ` Vitaly Kuznetsov
2022-11-30 23:08 ` [PATCH v2 11/50] KVM: VMX: Don't bother disabling eVMCS static key on module exit Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 12/50] KVM: VMX: Move Hyper-V eVMCS initialization to helper Sean Christopherson
2022-12-01 15:22 ` Vitaly Kuznetsov
2022-11-30 23:08 ` [PATCH v2 13/50] KVM: x86: Move guts of kvm_arch_init() to standalone helper Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 14/50] KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace Sean Christopherson
2022-11-30 23:08 ` [PATCH v2 15/50] KVM: x86: Serialize vendor module initialization (hardware setup) Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 16/50] KVM: arm64: Simplify the CPUHP logic Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 17/50] KVM: arm64: Free hypervisor allocations if vector slot init fails Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 18/50] KVM: arm64: Unregister perf callbacks if hypervisor finalization fails Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 19/50] KVM: arm64: Do arm/arch initialization without bouncing through kvm_init() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 20/50] KVM: arm64: Mark kvm_arm_init() and its unique descendants as __init Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 21/50] KVM: MIPS: Hardcode callbacks to hardware virtualization extensions Sean Christopherson
2022-12-01 22:00 ` Philippe Mathieu-Daudé
2022-12-01 22:49 ` Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 22/50] KVM: MIPS: Setup VZ emulation? directly from kvm_mips_init() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 23/50] KVM: MIPS: Register die notifier prior to kvm_init() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 24/50] KVM: RISC-V: Do arch init directly in riscv_kvm_init() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 25/50] KVM: RISC-V: Tag init functions and data with __init, __ro_after_init Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 26/50] KVM: PPC: Move processor compatibility check to module init Sean Christopherson
2022-12-01 5:21 ` Michael Ellerman
2022-12-01 16:38 ` Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 27/50] KVM: s390: Do s390 specific init without bouncing through kvm_init() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 28/50] KVM: s390: Mark __kvm_s390_init() and its descendants as __init Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 29/50] KVM: Drop kvm_arch_{init,exit}() hooks Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 30/50] KVM: VMX: Make VMCS configuration/capabilities structs read-only after init Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 31/50] KVM: x86: Do CPU compatibility checks in x86 code Sean Christopherson
2022-12-02 12:16 ` Huang, Kai
2022-12-05 20:52 ` Isaku Yamahata
2022-12-05 21:12 ` Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 32/50] KVM: Drop kvm_arch_check_processor_compat() hook Sean Christopherson
2022-12-02 12:18 ` Huang, Kai [this message]
2022-11-30 23:09 ` [PATCH v2 33/50] KVM: x86: Use KBUILD_MODNAME to specify vendor module name Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 34/50] KVM: x86: Unify pr_fmt to use module name for all KVM modules Sean Christopherson
2022-12-01 10:43 ` Paul Durrant
2022-11-30 23:09 ` [PATCH v2 35/50] KVM: VMX: Use current CPU's info to perform "disabled by BIOS?" checks Sean Christopherson
2022-12-02 12:18 ` Huang, Kai
2022-11-30 23:09 ` [PATCH v2 36/50] KVM: x86: Do VMX/SVM support checks directly in vendor code Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 37/50] KVM: VMX: Shuffle support checks and hardware enabling code around Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 38/50] KVM: SVM: Check for SVM support in CPU compatibility checks Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 39/50] KVM: x86: Move CPU compat checks hook to kvm_x86_ops (from kvm_x86_init_ops) Sean Christopherson
2022-12-02 13:01 ` Huang, Kai
2022-12-05 21:04 ` Isaku Yamahata
2022-11-30 23:09 ` [PATCH v2 40/50] KVM: x86: Do compatibility checks when onlining CPU Sean Christopherson
2022-12-02 13:03 ` Huang, Kai
2022-12-02 13:36 ` Huang, Kai
2022-12-02 16:04 ` Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 41/50] KVM: Rename and move CPUHP_AP_KVM_STARTING to ONLINE section Sean Christopherson
2022-12-02 13:06 ` Huang, Kai
2022-12-02 16:08 ` Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 42/50] KVM: Disable CPU hotplug during hardware enabling/disabling Sean Christopherson
2022-12-02 12:59 ` Huang, Kai
2022-12-02 16:31 ` Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 43/50] KVM: Ensure CPU is stable during low level hardware enable/disable Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 44/50] KVM: Drop kvm_count_lock and instead protect kvm_usage_count with kvm_lock Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 45/50] KVM: Remove on_each_cpu(hardware_disable_nolock) in kvm_exit() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 46/50] KVM: Use a per-CPU variable to track which CPUs have enabled virtualization Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 47/50] KVM: Make hardware_enable_failed a local variable in the "enable all" path Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 48/50] KVM: Register syscore (suspend/resume) ops early in kvm_init() Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 49/50] KVM: Opt out of generic hardware enabling on s390 and PPC Sean Christopherson
2022-11-30 23:09 ` [PATCH v2 50/50] KVM: Clean up error labels in kvm_init() Sean Christopherson
2022-12-02 8:02 ` [PATCH v2 00/50] KVM: Rework kvm_init() and hardware enabling Chao Gao
2022-12-27 13:02 ` Paolo Bonzini
2022-12-28 11:22 ` Marc Zyngier
2022-12-28 11:58 ` Paolo Bonzini
2022-12-29 20:52 ` Paolo Bonzini
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