[PATCH 4/8] kvm: decode the argument for KVM_CREATE_VCPU ioctl command

Masatake YAMATO yamato at redhat.com
Fri Dec 1 05:45:54 UTC 2017


* kvm.c (kvm_ioctl): Handle KVM_CREATE_VCPU.
(kvm_ioctl_create_vcpu): New function.

Signed-off-by: Masatake YAMATO <yamato at redhat.com>
---
 kvm.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/kvm.c b/kvm.c
index fdcf3466..1b21dab5 100644
--- a/kvm.c
+++ b/kvm.c
@@ -43,10 +43,21 @@ kvm_ioctl_create_vm(struct tcb *const tcp, const kernel_ulong_t arg)
 #endif
 }
 
+static int
+kvm_ioctl_create_vcpu(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+	uint32_t cpuid = arg;
+
+	tprintf(", %u", cpuid);
+	return RVAL_IOCTL_DECODED | RVAL_FD;
+}
+
 int
 kvm_ioctl(struct tcb *const tcp, const unsigned int code, const kernel_ulong_t arg)
 {
 	switch (code) {
+	case KVM_CREATE_VCPU:
+		return kvm_ioctl_create_vcpu(tcp, arg);
 	case KVM_CREATE_VM:
 		return kvm_ioctl_create_vm(tcp, arg);
 
-- 
2.13.6





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