public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Maxim Levitsky <mlevitsk@redhat.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Jim Mattson <jmattson@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Ingo Molnar <mingo@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Joerg Roedel <joro@8bytes.org>,
	x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Sean Christopherson <seanjc@google.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	Maxim Levitsky <mlevitsk@redhat.com>
Subject: [PATCH 1/2] KVM: x86: add guest_cpuid_is_intel
Date: Thu,  1 Apr 2021 14:16:13 +0300	[thread overview]
Message-ID: <20210401111614.996018-2-mlevitsk@redhat.com> (raw)
In-Reply-To: <20210401111614.996018-1-mlevitsk@redhat.com>

This is similar to existing 'guest_cpuid_is_amd_or_hygon'

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
---
 arch/x86/kvm/cpuid.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 2a0c5064497f..ded84d244f19 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -248,6 +248,14 @@ static inline bool guest_cpuid_is_amd_or_hygon(struct kvm_vcpu *vcpu)
 		is_guest_vendor_hygon(best->ebx, best->ecx, best->edx));
 }
 
+static inline bool guest_cpuid_is_intel(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 0, 0);
+	return best && is_guest_vendor_intel(best->ebx, best->ecx, best->edx);
+}
+
 static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
-- 
2.26.2


  reply	other threads:[~2021-04-01 17:56 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01 11:16 [PATCH 0/2] KVM: x86: nSVM: fixes for SYSENTER emulation Maxim Levitsky
2021-04-01 11:16 ` Maxim Levitsky [this message]
2021-04-01 11:16 ` [PATCH 2/2] KVM: nSVM: improve SYSENTER emulation on AMD Maxim Levitsky
2021-04-01 11:20 ` [PATCH 0/2] KVM: x86: nSVM: fixes for SYSENTER emulation Maxim Levitsky
  -- strict thread matches above, loose matches on Subject: below --
2021-03-15 17:43 Maxim Levitsky
2021-03-15 17:43 ` [PATCH 1/2] KVM: x86: add guest_cpuid_is_intel Maxim Levitsky

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210401111614.996018-2-mlevitsk@redhat.com \
    --to=mlevitsk@redhat.com \
    --cc=bp@alien8.de \
    --cc=hpa@zytor.com \
    --cc=jmattson@google.com \
    --cc=joro@8bytes.org \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=seanjc@google.com \
    --cc=tglx@linutronix.de \
    --cc=vkuznets@redhat.com \
    --cc=wanpengli@tencent.com \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox