From: Laurent Vivier Date: Fri, 30 May 2008 14:05:57 +0000 (+0200) Subject: KVM: Add coalesced MMIO support (ia64 part) X-Git-Tag: v2.6.27-rc1~968^2~33 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f39f8ac177db258200053074aa7a3d98656b1cf;p=linux-2.6 KVM: Add coalesced MMIO support (ia64 part) 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 Signed-off-by: Andrew Morton Signed-off-by: Avi Kivity --- diff --git a/arch/ia64/kvm/Makefile b/arch/ia64/kvm/Makefile index 112791dd25..bf22fb9e6d 100644 --- a/arch/ia64/kvm/Makefile +++ b/arch/ia64/kvm/Makefile @@ -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 diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index bb58df7cc4..9408b30576 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -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; } diff --git a/include/asm-ia64/kvm_host.h b/include/asm-ia64/kvm_host.h index 5c958b0c46..1efe513a99 100644 --- a/include/asm-ia64/kvm_host.h +++ b/include/asm-ia64/kvm_host.h @@ -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