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From: Yang Weijiang <weijiang.yang@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
	Yang Weijiang <weijiang.yang@intel.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	jmattson@google.com, yu.c.zhang@linux.intel.com
Subject: Re: [PATCH v11 5/9] KVM: X86: Refresh CPUID once guest XSS MSR changes
Date: Sun, 26 Apr 2020 23:01:17 +0800	[thread overview]
Message-ID: <20200426150117.GA29493@local-michael-cet-test.sh.intel.com> (raw)
In-Reply-To: <6e1076a5-edbf-e8fe-dd99-fbb92f3cc8d0@redhat.com>

On Sat, Apr 25, 2020 at 03:19:24PM +0200, Paolo Bonzini wrote:
> On 23/04/20 19:34, Sean Christopherson wrote:
> >>  	if (!kvm_cpu_cap_has(X86_FEATURE_XSAVES))
> >>  		supported_xss = 0;
> >> +	else
> >> +		supported_xss = host_xss & KVM_SUPPORTED_XSS;
> > Silly nit: I'd prefer to invert the check, e.g.
> > 
> > 	if (kvm_cpu_cap_has(X86_FEATURE_XSAVES))
> > 		supported_xss = host_xss & KVM_SUPPORTED_XSS;
> > 	else
> > 		supported_xss = 0;
> > 
> 
> Also a nit: Linux coding style should be
> 
> 	supported_xss = 0;
> 	if (kvm_cpu_cap_has(X86_FEATURE_XSAVES))
> 		supported_xss = host_xss & KVM_SUPPORTED_XSS;
> 
> Paolo
Ah, I should follow the coding style, thank you Paolo!

  reply	other threads:[~2020-04-26 14:59 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-26  8:18 [PATCH v11 0/9] Introduce support for guest CET feature Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 1/9] KVM: VMX: Introduce CET VMX fields and flags Yang Weijiang
2020-04-23 16:07   ` Sean Christopherson
2020-04-24 13:39     ` Yang Weijiang
2020-04-23 16:39   ` Sean Christopherson
2020-04-24 13:44     ` Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 2/9] KVM: VMX: Set guest CET MSRs per KVM and host configuration Yang Weijiang
2020-04-23 16:27   ` Sean Christopherson
2020-04-24 14:07     ` Yang Weijiang
2020-04-24 14:55       ` Sean Christopherson
2020-04-25  9:14         ` Yang Weijiang
2020-04-25 13:26     ` Paolo Bonzini
2020-04-26 15:26       ` Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 3/9] KVM: VMX: Set host/guest CET states for vmexit/vmentry Yang Weijiang
2020-04-01  2:23   ` kbuild test robot
2020-04-23 17:17   ` Sean Christopherson
2020-04-24 14:35     ` Yang Weijiang
2020-04-24 14:49       ` Sean Christopherson
2020-04-25  9:20         ` Yang Weijiang
2020-04-27 17:04           ` Sean Christopherson
2020-04-27 17:56             ` Sean Christopherson
2020-03-26  8:18 ` [PATCH v11 4/9] KVM: VMX: Check CET dependencies on CR settings Yang Weijiang
2020-04-23 17:20   ` Sean Christopherson
2020-04-24 14:36     ` Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 5/9] KVM: X86: Refresh CPUID once guest XSS MSR changes Yang Weijiang
2020-04-23 17:34   ` Sean Christopherson
2020-04-24 14:47     ` Yang Weijiang
2020-04-25 13:19     ` Paolo Bonzini
2020-04-26 15:01       ` Yang Weijiang [this message]
2020-03-26  8:18 ` [PATCH v11 6/9] KVM: X86: Load guest fpu state when access MSRs managed by XSAVES Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 7/9] KVM: X86: Add userspace access interface for CET MSRs Yang Weijiang
2020-03-28  7:40   ` kbuild test robot
2020-04-23 18:14   ` Sean Christopherson
2020-04-24 15:02     ` Yang Weijiang
2020-04-24 15:10       ` Sean Christopherson
2020-04-25  9:28         ` Yang Weijiang
2020-04-25 15:31   ` Paolo Bonzini
2020-04-26 15:23     ` Yang Weijiang
2020-04-27 14:04       ` Paolo Bonzini
2020-04-28 13:41         ` Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 8/9] KVM: VMX: Enable CET support for nested VM Yang Weijiang
2020-04-23 18:29   ` Sean Christopherson
2020-04-24 15:24     ` Yang Weijiang
2020-03-26  8:18 ` [PATCH v11 9/9] KVM: X86: Set CET feature bits for CPUID enumeration Yang Weijiang
2020-03-27  4:41   ` kbuild test robot
2020-04-23 16:56   ` Sean Christopherson
2020-04-24 14:17     ` Yang Weijiang
2020-04-23 16:58   ` Sean Christopherson
2020-04-24 14:23     ` Yang Weijiang
2020-03-26  8:18 ` [kvm-unit-tests PATCH] x86: Add tests for user-mode CET Yang Weijiang
2020-04-23 15:51 ` [PATCH v11 0/9] Introduce support for guest CET feature Sean Christopherson
2020-04-24 13:31   ` Yang Weijiang
2020-04-23 16:03 ` Sean Christopherson
2020-04-24 13:34   ` Yang Weijiang

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