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authorWolfram Sang <wsa@kernel.org>2022-02-23 16:14:15 +0300
committerWolfram Sang <wsa@kernel.org>2022-02-23 16:14:15 +0300
commit24e3bb7429bde31e9a28a46ca2fd6deaab257c30 (patch)
treee071e61748b5322e35033dbe0df8df5b027803d8 /arch/x86/include/asm/xen/cpuid.h
parent8302532f47bb6c3aa1ed2043d30187ca307f176a (diff)
parent509853f9e1e7b1490dc79f735a5dbafc9298f40d (diff)
downloadlinux-24e3bb7429bde31e9a28a46ca2fd6deaab257c30.tar.xz
Merge tag 'irq-api-2022-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into i2c/for-mergewindow
Provide a tag for maintainers to pull the generic_handle_irq_safe() API.
Diffstat (limited to 'arch/x86/include/asm/xen/cpuid.h')
-rw-r--r--arch/x86/include/asm/xen/cpuid.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/cpuid.h b/arch/x86/include/asm/xen/cpuid.h
index a9630104f1c4..78e667a31d6c 100644
--- a/arch/x86/include/asm/xen/cpuid.h
+++ b/arch/x86/include/asm/xen/cpuid.h
@@ -100,6 +100,13 @@
/* Memory mapped from other domains has valid IOMMU entries */
#define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2)
#define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */
+#define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */
+/*
+ * Bits 55:49 from the IO-APIC RTE and bits 11:5 from the MSI address can be
+ * used to store high bits for the Destination ID. This expands the Destination
+ * ID field from 8 to 15 bits, allowing to target APIC IDs up 32768.
+ */
+#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5)
/*
* Leaf 6 (0x40000x05)