[PATCH] target/i386: relax assert when old host kernels don't include msrs

[Catherine Ho <catherine.hecx@gmail.com>]

Commit 20a78b02d315 ("target/i386: add VMX features") unconditionally
add vmx msr entry although older host kernels don't include them.

But old host kernel + newest qemu will cause a qemu crash as follows:
qemu-system-x86_64: error: failed to set MSR 0x480 to 0x0
target/i386/kvm.c:2932: kvm_put_msrs: Assertion `ret ==
cpu->kvm_msr_buf->nmsrs' failed.

This fixes it by relaxing the condition.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Catherine Ho <catherine.hecx@gmail.com>
---
 target/i386/kvm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index bf16556..a8c44bf 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -2936,7 +2936,7 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
                      (uint32_t)e->index, (uint64_t)e->data);
     }
 
-    assert(ret == cpu->kvm_msr_buf->nmsrs);
+    assert(ret <= cpu->kvm_msr_buf->nmsrs);
     return 0;
 }
 
-- 
1.7.1