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KVM: Add coalesced MMIO support (ia64 part)

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This patch enables coalesced MMIO for ia64 architecture.
It defines KVM_MMIO_PAGE_OFFSET and KVM_CAP_COALESCED_MMIO.
It enables the compilation of coalesced_mmio.c.

[akpm: fix compile error on ia64]

Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Laurent Vivier 2008-05-30 16:05:57 +02:00 committed by Avi Kivity
parent 588968b6b7
commit 7f39f8ac17
3 changed files with 6 additions and 1 deletions
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3
arch/ia64/kvm/Makefile
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@ -43,7 +43,8 @@ $(obj)/$(offsets-file): arch/ia64/kvm/asm-offsets.s
EXTRA_CFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
EXTRA_AFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o)
common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
coalesced_mmio.o)
kvm-objs := $(common-objs) kvm-ia64.o kvm_fw.o
obj-$(CONFIG_KVM) += kvm.o

3
arch/ia64/kvm/kvm-ia64.c
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@ -187,6 +187,9 @@ int kvm_dev_ioctl_check_extension(long ext)
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
r = KVM_COALESCED_MMIO_PAGE_OFFSET;
break;
default:
r = 0;
}

1
include/asm-ia64/kvm_host.h
View File

@ -38,6 +38,7 @@
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
/* define exit reasons from vmm to kvm*/
#define EXIT_REASON_VM_PANIC 0