Re: [PATCH] kvm: vmx: Fix entry nubmer check for add_atomic_switch_msr()
From: linux.intel.com
Date: Mon Feb 18 2019 - 03:30:14 EST
On Fri, 2019-02-15 at 11:46 -0500, Konrad Rzeszutek Wilk wrote:
> On Thu, Feb 14, 2019 at 12:08:58PM +0800, Xiaoyao Li wrote:
> > Commit ca83b4a7f2d068da79a0 ("x86/KVM/VMX: Add find_msr() helper function")
> > introduces the helper function find_msr(), which returns -ENOENT when
> > not find the msr in vmx->msr_autoload.guest/host. Correct checking contion
>
> s/not find/cannot find/
> s/contion/condition/ ?
>
Hi Paolo,
Could you correct these typos in KVM tree or when sending a PR?
> > of no more available entry in vmx->msr_autoload.
> >
> > Fixes: ca83b4a7f2d0 ("x86/KVM/VMX: Add find_msr() helper function")
> > Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxxxxxxxx>
> > ---
> > arch/x86/kvm/vmx/vmx.c | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> > index 95d618045001..1aaef2d536bd 100644
> > --- a/arch/x86/kvm/vmx/vmx.c
> > +++ b/arch/x86/kvm/vmx/vmx.c
> > @@ -863,7 +863,8 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx,
> > unsigned msr,
> > if (!entry_only)
> > j = find_msr(&m->host, msr);
> >
> > - if (i == NR_AUTOLOAD_MSRS || j == NR_AUTOLOAD_MSRS) {
> > + if ((i < 0 && m->guest.nr == NR_AUTOLOAD_MSRS) ||
> > + (j < 0 && m->host.nr == NR_AUTOLOAD_MSRS)) {
> > printk_once(KERN_WARNING "Not enough msr switch entries. "
> > "Can't add msr %x\n", msr);
> > return;
> > --
> > 2.19.1
> >