Vitaly Kuznetsov dbef2808af KVM: VMX: fix crash cleanup when KVM wasn't used ... If KVM wasn't used at all before we crash the cleanup procedure fails with BUG: unable to handle page fault for address: ffffffffffffffc8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23215067 P4D 23215067 PUD 23217067 PMD 0 Oops: 0000 [#8] SMP PTI CPU: 0 PID: 3542 Comm: bash Kdump: loaded Tainted: G D 5.6.0-rc2+ #823 RIP: 0010:crash_vmclear_local_loaded_vmcss.cold+0x19/0x51 [kvm_intel] The root cause is that loaded_vmcss_on_cpu list is not yet initialized, we initialize it in hardware_enable() but this only happens when we start a VM. Previously, we used to have a bitmap with enabled CPUs and that was preventing [masking] the issue. Initialized loaded_vmcss_on_cpu list earlier, right before we assign crash_vmclear_loaded_vmcss pointer. blocked_vcpu_on_cpu list and blocked_vcpu_on_cpu_lock are moved altogether for consistency. Fixes: 31603d4fc2 ("KVM: VMX: Always VMCLEAR in-use VMCSes during crash with kexec support") Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200401081348.1345307-1-vkuznets@redhat.com> Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2020-04-07 08:35:36 -04:00
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capabilities.h	KVM: x86: Handle PKU CPUID adjustment in VMX code	2020-03-16 17:58:19 +01:00
evmcs.c	x86/kvm/hyper-v: don't allow to turn on unsupported VMX controls for nested guests	2020-02-05 15:55:26 +01:00
evmcs.h	KVM: nVMX: properly handle errors in nested_vmx_handle_enlightened_vmptrld()	2020-03-16 18:19:30 +01:00
nested.c	KVM: nVMX: don't clear mtf_pending when nested events are blocked	2020-04-07 04:21:41 -04:00
nested.h	KVM: VMX: Configure runtime hooks using vmx_x86_ops	2020-03-31 10:48:06 -04:00
ops.h	x86/kvm: fix a missing-prototypes "vmread_error"	2020-04-02 15:17:45 -04:00
pmu_intel.c	KVM: VMX: Directly query Intel PT mode when refreshing PMUs	2020-03-16 17:58:38 +01:00
vmcs12.c
vmcs12.h	KVM/arm updates for 5.3	2019-07-11 15:14:16 +02:00
vmcs_shadow_fields.h	KVM: Fix some out-dated function names in comment	2020-01-21 13:57:27 +01:00
vmcs.h	KVM: VMX: Leave preemption timer running when it's disabled	2019-06-18 17:10:46 +02:00
vmenter.S	KVM: VMX: Remove unnecessary exception trampoline in vmx_vmenter	2020-04-07 04:21:20 -04:00
vmx.c	KVM: VMX: fix crash cleanup when KVM wasn't used	2020-04-07 08:35:36 -04:00
vmx.h	ARM:	2020-04-02 15:13:15 -07:00