linux-kernel - [PATCH linux v2 1/9] x86/xen: update cpuid.h from Xen-4.7

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Message-Id: <1467302203-22399-2-git-send-email-vkuznets@redhat.com>
Date:	Thu, 30 Jun 2016 17:56:35 +0200
From:	Vitaly Kuznetsov <vkuznets@...hat.com>
To:	xen-devel@...ts.xenproject.org
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	Stefano Stabellini <sstabellini@...nel.org>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Juergen Gross <jgross@...e.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Jan Beulich" <JBeulich@...e.com>,
	Andrew Cooper <andrew.cooper3@...rix.com>
Subject: [PATCH linux v2 1/9] x86/xen: update cpuid.h from Xen-4.7

Update cpuid.h header from xen hypervisor tree to get
XEN_HVM_CPUID_VCPU_ID_PRESENT definition.

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
 arch/x86/include/asm/xen/cpuid.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/xen/cpuid.h b/arch/x86/include/asm/xen/cpuid.h
index 0d809e9..3bdd10d 100644
--- a/arch/x86/include/asm/xen/cpuid.h
+++ b/arch/x86/include/asm/xen/cpuid.h
@@ -76,15 +76,18 @@
 /*
  * Leaf 5 (0x40000x04)
  * HVM-specific features
+ * EAX: Features
+ * EBX: vcpu id (iff EAX has XEN_HVM_CPUID_VCPU_ID_PRESENT flag)
  */
 
-/* EAX Features */
 /* Virtualized APIC registers */
 #define XEN_HVM_CPUID_APIC_ACCESS_VIRT (1u << 0)
 /* Virtualized x2APIC accesses */
 #define XEN_HVM_CPUID_X2APIC_VIRT      (1u << 1)
 /* Memory mapped from other domains has valid IOMMU entries */
 #define XEN_HVM_CPUID_IOMMU_MAPPINGS   (1u << 2)
+/* vcpu id is present in EBX */
+#define XEN_HVM_CPUID_VCPU_ID_PRESENT  (1u << 3)
 
 #define XEN_CPUID_MAX_NUM_LEAVES 4
 
-- 
2.5.5