Hi, Avi
Sorry, seems irq_comm.c is missing when I generate the patchset.
Attach it! Could you help to apply the patchset ? :-)
Xiantao
>From cc77672cdfb5a566d1c7e86d91c07d6db99ad8c0 Mon Sep 17 00:00:00 2001
From: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
Date: Sat, 27 Sep 2008 11:29:14 +0800
Subject: [PATCH] kvm: Split arch/x86/kvm/irq.c to two parts.
Moving irq ack notification logic as common, and make
it shared with ia64 side.
Signed-off-by: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
---
arch/ia64/include/asm/kvm_host.h | 4 ++
arch/ia64/kvm/Makefile | 2 +-
arch/ia64/kvm/irq.h | 5 ---
arch/x86/kvm/Makefile | 2 +-
arch/x86/kvm/irq.c | 33 ---------------------
arch/x86/kvm/irq.h | 8 -----
include/asm-x86/kvm_host.h | 2 +
include/linux/kvm_host.h | 6 ++++
virt/kvm/irq_comm.c | 59
++++++++++++++++++++++++++++++++++++++
9 files changed, 73 insertions(+), 48 deletions(-)
create mode 100644 virt/kvm/irq_comm.c
diff --git a/arch/ia64/include/asm/kvm_host.h
b/arch/ia64/include/asm/kvm_host.h
index 1efe513..da579a3 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -413,6 +413,10 @@ struct kvm_arch {
struct kvm_ioapic *vioapic;
struct kvm_vm_stat stat;
struct kvm_sal_data rdv_sal_data;
+
+ struct list_head assigned_dev_head;
+ struct dmar_domain *intel_iommu_domain;
+ struct hlist_head irq_ack_notifier_list;
};
union cpuid3_t {
diff --git a/arch/ia64/kvm/Makefile b/arch/ia64/kvm/Makefile
index bf22fb9..c96f19f 100644
--- a/arch/ia64/kvm/Makefile
+++ b/arch/ia64/kvm/Makefile
@@ -44,7 +44,7 @@ EXTRA_CFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
EXTRA_AFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
- coalesced_mmio.o)
+ coalesced_mmio.o irq_comm.o)
kvm-objs := $(common-objs) kvm-ia64.o kvm_fw.o
obj-$(CONFIG_KVM) += kvm.o
diff --git a/arch/ia64/kvm/irq.h b/arch/ia64/kvm/irq.h
index f2e6545..604329a 100644
--- a/arch/ia64/kvm/irq.h
+++ b/arch/ia64/kvm/irq.h
@@ -23,10 +23,5 @@
#ifndef __IRQ_H
#define __IRQ_H
-struct kvm;
-
-static inline void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
-{
-}
#endif
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 7dce593..0d2cf3f 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -3,7 +3,7 @@
#
common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
- coalesced_mmio.o)
+ coalesced_mmio.o irq_comm.o)
ifeq ($(CONFIG_KVM_TRACE),y)
common-objs += $(addprefix ../../../virt/kvm/, kvm_trace.o)
endif
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 8c1b9c5..c019b8e 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c
@@ -99,36 +99,3 @@ void __kvm_migrate_timers(struct kvm_vcpu *vcpu)
__kvm_migrate_apic_timer(vcpu);
__kvm_migrate_pit_timer(vcpu);
}
-
-/* This should be called with the kvm->lock mutex held */
-void kvm_set_irq(struct kvm *kvm, int irq, int level)
-{
- /* Not possible to detect if the guest uses the PIC or the
- * IOAPIC. So set the bit in both. The guest will ignore
- * writes to the unused one.
- */
- kvm_ioapic_set_irq(kvm->arch.vioapic, irq, level);
- kvm_pic_set_irq(pic_irqchip(kvm), irq, level);
-}
-
-void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
-{
- struct kvm_irq_ack_notifier *kian;
- struct hlist_node *n;
-
- hlist_for_each_entry(kian, n, &kvm->arch.irq_ack_notifier_list,
link)
- if (kian->gsi == gsi)
- kian->irq_acked(kian);
-}
-
-void kvm_register_irq_ack_notifier(struct kvm *kvm,
- struct kvm_irq_ack_notifier *kian)
-{
- hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list);
-}
-
-void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
- struct kvm_irq_ack_notifier *kian)
-{
- hlist_del(&kian->link);
-}
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 4748532..f17c8f5 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -68,7 +68,6 @@ struct kvm_pic {
};
struct kvm_pic *kvm_create_pic(struct kvm *kvm);
-void kvm_pic_set_irq(void *opaque, int irq, int level);
int kvm_pic_read_irq(struct kvm *kvm);
void kvm_pic_update_irq(struct kvm_pic *s);
void kvm_pic_clear_isr_ack(struct kvm *kvm);
@@ -85,13 +84,6 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
void kvm_pic_reset(struct kvm_kpic_state *s);
-void kvm_set_irq(struct kvm *kvm, int irq, int level);
-void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
-void kvm_register_irq_ack_notifier(struct kvm *kvm,
- struct kvm_irq_ack_notifier *kian);
-void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
- struct kvm_irq_ack_notifier *kian);
-
void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec);
void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index b507b8f..b2783a8 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -565,6 +565,8 @@ void kvm_queue_exception_e(struct kvm_vcpu *vcpu,
unsigned nr, u32 error_code);
void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
u32 error_code);
+void kvm_pic_set_irq(void *opaque, int irq, int level);
+
void kvm_inject_nmi(struct kvm_vcpu *vcpu);
void fx_init(struct kvm_vcpu *vcpu);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index b3b7598..3833c48 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -309,6 +309,12 @@ struct kvm_assigned_dev_kernel {
struct pci_dev *dev;
struct kvm *kvm;
};
+void kvm_set_irq(struct kvm *kvm, int irq, int level);
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
+void kvm_register_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian);
+void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian);
#ifdef CONFIG_DMAR
int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
new file mode 100644
index 0000000..371bcbc
--- /dev/null
+++ b/virt/kvm/irq_comm.c
@@ -0,0 +1,59 @@
+/*
+ * irq_comm.c: Common API for in kernel interrupt controller
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but
WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ * Authors:
+ * Yaozu (Eddie) Dong <Eddie.dong@xxxxxxxxx>
+ *
+ */
+
+#include <linux/kvm_host.h>
+
+#include "ioapic.h"
+
+/* This should be called with the kvm->lock mutex held */
+void kvm_set_irq(struct kvm *kvm, int irq, int level)
+{
+ /* Not possible to detect if the guest uses the PIC or the
+ * IOAPIC. So set the bit in both. The guest will ignore
+ * writes to the unused one.
+ */
+ kvm_ioapic_set_irq(kvm->arch.vioapic, irq, level);
+#ifdef X86
+ kvm_pic_set_irq(pic_irqchip(kvm), irq, level);
+#endif
+}
+
+void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi)
+{
+ struct kvm_irq_ack_notifier *kian;
+ struct hlist_node *n;
+
+ hlist_for_each_entry(kian, n, &kvm->arch.irq_ack_notifier_list,
link)
+ if (kian->gsi == gsi)
+ kian->irq_acked(kian);
+}
+
+void kvm_register_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian)
+{
+ hlist_add_head(&kian->link, &kvm->arch.irq_ack_notifier_list);
+}
+
+void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
+ struct kvm_irq_ack_notifier *kian)
+{
+ hlist_del(&kian->link);
+}
--
1.5.1
Zhang, Xiantao wrote:
> In order to enable vt-d suport for kvm/ia64 guests, I worked out the
> patchset to make it happen. Please review. The first five patches have
> no changes for logic and just do code move.
> Xiantao
> [PATCH 1/8] kvm/vt-d: Moving vtd.c from arch/x86/kvm/ to virt/kvm/
> [PATCH 2/8] kvm: Moving device_assignment logic to kvm_main.c
> [PATCH 3/8] kvm: Changing is_mmio_pfn to kvm_is_mmio_pfn, and make it
> common
> [PATCH 4/8] kvm: Split arch/x86/kvm/irq.c to two parts.
> [PATCH 5/8] kvm: Moving irqchip_in_kernel from ioapic.h to irq.h
> [PATCH 6/8] kvm/ia64: Make pmt table be able to hold physical mmio
> entries.
> [PATCH 7/8] kvm/ia64: Add directed mmio range support for kvm guests.
> [PATCH 8/8] kvm/ia64: Add intel iommu support for guests
>
Apart from my comment on patch 4, this series looks good.
--
error compiling committee.c: too many arguments to function
Attachment:
0004-kvm-Split-arch-x86-kvm-irq.c-to-two-parts.patch
Description: 0004-kvm-Split-arch-x86-kvm-irq.c-to-two-parts.patch
