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[Qemu-devel] [PATCH v2 6/7] s390/kvm: Base infrastructure for enabling c
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PATCH v2 6/7] s390/kvm: Base infrastructure for enabling capabilities. |
Date: |
Tue, 4 Sep 2012 17:13:29 +0200 |
Signed-off-by: Cornelia Huck <address@hidden>
---
Documentation/virtual/kvm/api.txt | 2 +-
arch/s390/kvm/kvm-s390.c | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/Documentation/virtual/kvm/api.txt
b/Documentation/virtual/kvm/api.txt
index b91bfd4..9c71aaa 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -913,7 +913,7 @@ documentation when it pops into existence).
4.37 KVM_ENABLE_CAP
Capability: KVM_CAP_ENABLE_CAP
-Architectures: ppc
+Architectures: ppc, s390
Type: vcpu ioctl
Parameters: struct kvm_enable_cap (in)
Returns: 0 on success; -1 on error
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index e83df7f..4b0681c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -140,6 +140,7 @@ int kvm_dev_ioctl_check_extension(long ext)
#endif
case KVM_CAP_SYNC_REGS:
case KVM_CAP_ONE_REG:
+ case KVM_CAP_ENABLE_CAP:
r = 1;
break;
case KVM_CAP_NR_VCPUS:
@@ -807,6 +808,22 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu,
unsigned long addr)
return 0;
}
+static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
+ struct kvm_enable_cap *cap)
+{
+ int r;
+
+ if (cap->flags)
+ return -EINVAL;
+
+ switch (cap->cap) {
+ default:
+ r = -EINVAL;
+ break;
+ }
+ return r;
+}
+
long kvm_arch_vcpu_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
@@ -893,6 +910,15 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
r = 0;
break;
}
+ case KVM_ENABLE_CAP:
+ {
+ struct kvm_enable_cap cap;
+ r = -EFAULT;
+ if (copy_from_user(&cap, argp, sizeof(cap)))
+ break;
+ r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap);
+ break;
+ }
default:
r = -ENOTTY;
}
--
1.7.11.5
- [Qemu-devel] [RFC PATCH v2 0/7] s390: virtual css host support., Cornelia Huck, 2012/09/04
- [Qemu-devel] [PATCH v2 3/7] s390/kvm: In-kernel handling of I/O instructions., Cornelia Huck, 2012/09/04
- [Qemu-devel] [PATCH v2 4/7] s390: Move css limits from drivers/s390/cio/ to include/asm/., Cornelia Huck, 2012/09/04
- [Qemu-devel] [PATCH v2 1/7] s390/kvm: Support for I/O interrupts., Cornelia Huck, 2012/09/04
- [Qemu-devel] [PATCH v2 5/7] s390: Make some css-related structures usable by non-cio code., Cornelia Huck, 2012/09/04
- [Qemu-devel] [PATCH v2 6/7] s390/kvm: Base infrastructure for enabling capabilities.,
Cornelia Huck <=
- [Qemu-devel] [PATCH v2 7/7] s390/kvm: In-kernel channel subsystem support., Cornelia Huck, 2012/09/04
- [Qemu-devel] [PATCH v2 2/7] s390/kvm: Add support for machine checks., Cornelia Huck, 2012/09/04
- Re: [Qemu-devel] [RFC PATCH v2 0/7] s390: virtual css host support., Avi Kivity, 2012/09/05