diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-14 10:10:55 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-14 10:10:55 +0200 |
commit | fccee0baced04636952cd580ddee4bb8cbb9544c (patch) | |
tree | 80e25c0e100246357bd0c0a93feb1bf2e5e5bd1d /arch/x86/kernel/kvm.c | |
parent | a5a6d2753e7ec18a34bd21190b50ee7f085f4daf (diff) | |
parent | 856deb866d16e29bd65952e0289066f6078af773 (diff) |
Merge 5.9-rc5 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/kvm.c')
-rw-r--r-- | arch/x86/kernel/kvm.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 08320b0b2b27..1b51b727b140 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -270,9 +270,8 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_kvm_asyncpf_interrupt) { struct pt_regs *old_regs = set_irq_regs(regs); u32 token; - irqentry_state_t state; - state = irqentry_enter(regs); + ack_APIC_irq(); inc_irq_stat(irq_hv_callback_count); @@ -283,7 +282,6 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_kvm_asyncpf_interrupt) wrmsrl(MSR_KVM_ASYNC_PF_ACK, 1); } - irqentry_exit(regs, state); set_irq_regs(old_regs); } @@ -654,7 +652,6 @@ static void __init kvm_guest_init(void) } if (pv_tlb_flush_supported()) { - pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others; pv_ops.mmu.tlb_remove_table = tlb_remove_table; pr_info("KVM setup pv remote TLB flush\n"); } @@ -767,6 +764,14 @@ static __init int activate_jump_labels(void) } arch_initcall(activate_jump_labels); +static void kvm_free_pv_cpu_mask(void) +{ + unsigned int cpu; + + for_each_possible_cpu(cpu) + free_cpumask_var(per_cpu(__pv_cpu_mask, cpu)); +} + static __init int kvm_alloc_cpumask(void) { int cpu; @@ -785,11 +790,20 @@ static __init int kvm_alloc_cpumask(void) if (alloc) for_each_possible_cpu(cpu) { - zalloc_cpumask_var_node(per_cpu_ptr(&__pv_cpu_mask, cpu), - GFP_KERNEL, cpu_to_node(cpu)); + if (!zalloc_cpumask_var_node( + per_cpu_ptr(&__pv_cpu_mask, cpu), + GFP_KERNEL, cpu_to_node(cpu))) { + goto zalloc_cpumask_fail; + } } + apic->send_IPI_mask_allbutself = kvm_send_ipi_mask_allbutself; + pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others; return 0; + +zalloc_cpumask_fail: + kvm_free_pv_cpu_mask(); + return -ENOMEM; } arch_initcall(kvm_alloc_cpumask); |