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KVM: Add coalesced MMIO support (powerpc part)

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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 <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Laurent Vivier 2008-05-30 16:05:56 +02:00 committed by Avi Kivity
parent 542472b53e
commit 588968b6b7
3 changed files with 6 additions and 1 deletions
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2
arch/powerpc/kvm/Makefile
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@ -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

3
arch/powerpc/kvm/powerpc.c
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@ -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;

2
include/asm-powerpc/kvm_host.h
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@ -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)