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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 15:36:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 15:36:00 -0700
commit08d19f51f05a68ce89a289320ce4ed96e757df72 (patch)
tree31c5d718d0aeaff5083fe533cd6e1f9fbbe846bb /arch/s390
parent1c95e1b69073cff5ff179e592fa1a1e182c78a17 (diff)
parent2381ad241d0bea1253a37f314b270848067640bb (diff)
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Merge branch 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (134 commits) KVM: ia64: Add intel iommu support for guests. KVM: ia64: add directed mmio range support for kvm guests KVM: ia64: Make pmt table be able to hold physical mmio entries. KVM: Move irqchip_in_kernel() from ioapic.h to irq.h KVM: Separate irq ack notification out of arch/x86/kvm/irq.c KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs KVM: Move device assignment logic to common code KVM: Device Assignment: Move vtd.c from arch/x86/kvm/ to virt/kvm/ KVM: VMX: enable invlpg exiting if EPT is disabled KVM: x86: Silence various LAPIC-related host kernel messages KVM: Device Assignment: Map mmio pages into VT-d page table KVM: PIC: enhance IPI avoidance KVM: MMU: add "oos_shadow" parameter to disable oos KVM: MMU: speed up mmu_unsync_walk KVM: MMU: out of sync shadow core KVM: MMU: mmu_convert_notrap helper KVM: MMU: awareness of new kvm_mmu_zap_page behaviour KVM: MMU: mmu_parent_walk KVM: x86: trap invlpg KVM: MMU: sync roots on mmu reload ...
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig7
-rw-r--r--arch/s390/kvm/priv.c4
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 4c03049e7db9..bc581d8a7cd9 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -565,13 +565,16 @@ config ZFCPDUMP
Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
config S390_GUEST
-bool "s390 guest support (EXPERIMENTAL)"
+bool "s390 guest support for KVM (EXPERIMENTAL)"
depends on 64BIT && EXPERIMENTAL
select VIRTIO
select VIRTIO_RING
select VIRTIO_CONSOLE
help
- Select this option if you want to run the kernel under s390 linux
+ Select this option if you want to run the kernel as a guest under
+ the KVM hypervisor. This will add detection for KVM as well as a
+ virtio transport. If KVM is detected, the virtio console will be
+ the default console.
endmenu
source "net/Kconfig"
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index d1faf5c54405..cce40ff2913b 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -157,8 +157,8 @@ static int handle_stfl(struct kvm_vcpu *vcpu)
int rc;
vcpu->stat.instruction_stfl++;
- facility_list &= ~(1UL<<24); /* no stfle */
- facility_list &= ~(1UL<<23); /* no large pages */
+ /* only pass the facility bits, which we can handle */
+ facility_list &= 0xfe00fff3;
rc = copy_to_guest(vcpu, offsetof(struct _lowcore, stfl_fac_list),
&facility_list, sizeof(facility_list));