From: Laurent Vivier Date: Fri, 30 May 2008 14:05:56 +0000 (+0200) Subject: KVM: Add coalesced MMIO support (powerpc part) X-Git-Tag: v2.6.27-rc1~968^2~34 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=588968b6b7d34e6a88f538d1db9aca47b203623e;p=linux-2.6 KVM: Add coalesced MMIO support (powerpc part) This patch enables coalesced MMIO for powerpc architecture. It defines KVM_MMIO_PAGE_OFFSET and KVM_CAP_COALESCED_MMIO. It enables the compilation of coalesced_mmio.c. Signed-off-by: Laurent Vivier Signed-off-by: Avi Kivity --- diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile index d0d358d367..04e3449e1f 100644 --- a/arch/powerpc/kvm/Makefile +++ b/arch/powerpc/kvm/Makefile @@ -4,7 +4,7 @@ EXTRA_CFLAGS += -Ivirt/kvm -Iarch/powerpc/kvm -common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o) +common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o) kvm-objs := $(common-objs) powerpc.o emulate.o booke_guest.o obj-$(CONFIG_KVM) += kvm.o diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 0513b35985..b850d24970 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -145,6 +145,9 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_USER_MEMORY: r = 1; break; + case KVM_CAP_COALESCED_MMIO: + r = KVM_COALESCED_MMIO_PAGE_OFFSET; + break; default: r = 0; break; diff --git a/include/asm-powerpc/kvm_host.h b/include/asm-powerpc/kvm_host.h index 81a69d7110..2655e2a483 100644 --- a/include/asm-powerpc/kvm_host.h +++ b/include/asm-powerpc/kvm_host.h @@ -31,6 +31,8 @@ /* memory slots that does not exposed to userspace */ #define KVM_PRIVATE_MEM_SLOTS 4 +#define KVM_COALESCED_MMIO_PAGE_OFFSET 1 + /* We don't currently support large pages. */ #define KVM_PAGES_PER_HPAGE (1<<31)