treewide: refresh kmalloc_obj() conversionsgrafted

This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci

This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.

Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.

Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>

1 files changed, 150 insertions, 0 deletions

diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
new file mode 100644
index 000000000..a74f03858
--- /dev/null
+++ b/arch/x86/kvm/irq.h
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * irq.h: in kernel interrupt controller related definitions
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * Authors:
+ *   Yaozu (Eddie) Dong <Eddie.dong@intel.com>
+ */
+
+#ifndef __IRQ_H
+#define __IRQ_H
+
+#include <linux/mm_types.h>
+#include <linux/hrtimer.h>
+#include <linux/kvm_host.h>
+#include <linux/spinlock.h>
+
+#include <kvm/iodev.h>
+#include "lapic.h"
+
+#ifdef CONFIG_KVM_IOAPIC
+
+#define PIC_NUM_PINS 16
+#define SELECT_PIC(irq) \
+	((irq) < 8 ? KVM_IRQCHIP_PIC_MASTER : KVM_IRQCHIP_PIC_SLAVE)
+
+struct kvm;
+struct kvm_vcpu;
+
+struct kvm_kpic_state {
+	u8 last_irr;	/* edge detection */
+	u8 irr;		/* interrupt request register */
+	u8 imr;		/* interrupt mask register */
+	u8 isr;		/* interrupt service register */
+	u8 priority_add;	/* highest irq priority */
+	u8 irq_base;
+	u8 read_reg_select;
+	u8 poll;
+	u8 special_mask;
+	u8 init_state;
+	u8 auto_eoi;
+	u8 rotate_on_auto_eoi;
+	u8 special_fully_nested_mode;
+	u8 init4;		/* true if 4 byte init */
+	u8 elcr;		/* PIIX edge/trigger selection */
+	u8 elcr_mask;
+	u8 isr_ack;	/* interrupt ack detection */
+	struct kvm_pic *pics_state;
+};
+
+struct kvm_pic {
+	spinlock_t lock;
+	bool wakeup_needed;
+	unsigned pending_acks;
+	struct kvm *kvm;
+	struct kvm_kpic_state pics[2]; /* 0 is master pic, 1 is slave pic */
+	int output;		/* intr from master PIC */
+	struct kvm_io_device dev_master;
+	struct kvm_io_device dev_slave;
+	struct kvm_io_device dev_elcr;
+	unsigned long irq_states[PIC_NUM_PINS];
+};
+
+int kvm_pic_init(struct kvm *kvm);
+void kvm_pic_destroy(struct kvm *kvm);
+int kvm_pic_read_irq(struct kvm *kvm);
+void kvm_pic_update_irq(struct kvm_pic *s);
+int kvm_pic_set_irq(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm,
+		    int irq_source_id, int level, bool line_status);
+
+int kvm_setup_default_ioapic_and_pic_routing(struct kvm *kvm);
+
+int kvm_vm_ioctl_get_irqchip(struct kvm *kvm, struct kvm_irqchip *chip);
+int kvm_vm_ioctl_set_irqchip(struct kvm *kvm, struct kvm_irqchip *chip);
+
+static inline int irqchip_full(struct kvm *kvm)
+{
+	int mode = kvm->arch.irqchip_mode;
+
+	/* Matches smp_wmb() when setting irqchip_mode */
+	smp_rmb();
+	return mode == KVM_IRQCHIP_KERNEL;
+}
+#else /* CONFIG_KVM_IOAPIC */
+static __always_inline int irqchip_full(struct kvm *kvm)
+{
+	return false;
+}
+#endif
+
+static inline int pic_in_kernel(struct kvm *kvm)
+{
+	return irqchip_full(kvm);
+}
+
+
+static inline int irqchip_split(struct kvm *kvm)
+{
+	int mode = kvm->arch.irqchip_mode;
+
+	/* Matches smp_wmb() when setting irqchip_mode */
+	smp_rmb();
+	return mode == KVM_IRQCHIP_SPLIT;
+}
+
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	int mode = kvm->arch.irqchip_mode;
+
+	/* Matches smp_wmb() when setting irqchip_mode */
+	smp_rmb();
+	return mode != KVM_IRQCHIP_NONE;
+}
+
+int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
+int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
+int kvm_cpu_has_extint(struct kvm_vcpu *v);
+int kvm_cpu_get_extint(struct kvm_vcpu *v);
+int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
+
+static inline void kvm_warn_on_lost_irq(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * WARN if an IRQ was lost between detecting the IRQ and grabbing the
+	 * IRQ for injection, unless it's possible the lost IRQ was due to one
+	 * of the exceptional cases below.
+	 *
+	 * If the VM has an in-kernel PIC, the ExtINT handling that's routed
+	 * through KVM's virtual PIC is tracked per-VM, not per-vCPU.  If
+	 * another vCPU grabs the IRQ, or deasserts the interrupt (which is
+	 * level-triggered), then it's both expected and "fine" for an IRQ
+	 * seemingly be "lost" from this vCPU's perspective.
+	 *
+	 * Similarly, Xen's event channel isn't entirely within KVM's control,
+	 * e.g. Xen emulation can be disabled entirely per-VM, or the guest
+	 * can desassert an IRQ by writing to shared memory.
+	 */
+	WARN_ON_ONCE(!pic_in_kernel(vcpu->kvm) && !IS_ENABLED(CONFIG_KVM_XEN));
+}
+
+void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
+void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
+void kvm_apic_nmi_wd_deliver(struct kvm_vcpu *vcpu);
+void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
+void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu);
+void __kvm_migrate_timers(struct kvm_vcpu *vcpu);
+
+int apic_has_pending_timer(struct kvm_vcpu *vcpu);
+
+#endif