linux-kernel - [PATCH FYI] tools headers UAPI: Sync linux/kvm.h with the kernel sources

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Message-ID: <YkSCOWHQdir1lhdJ@kernel.org>
Date:   Wed, 30 Mar 2022 13:15:53 -0300
From:   arnaldo.melo@...il.com
To:     Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Janis Schoetterl-Glausch <scgl@...ux.ibm.com>,
        Oliver Upton <oupton@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH FYI] tools headers UAPI: Sync linux/kvm.h with the kernel
 sources

Just FYI, I'm carrying this on the perf tools tree.

- Arnaldo

---


To pick the changes in:

  6d8491910fcd3324 ("KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2")
  ef11c9463ae00630 ("KVM: s390: Add vm IOCTL for key checked guest absolute memory access")
  e9e9feebcbc14b17 ("KVM: s390: Add optional storage key checking to MEMOP IOCTL")

That just rebuilds perf, as these patches don't add any new KVM ioctl to
be harvested for the the 'perf trace' ioctl syscall argument
beautifiers.

This is also by now used by tools/testing/selftests/kvm/, a simple test
build succeeded.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h

Cc: Christian Borntraeger <borntraeger@...ux.ibm.com>
Cc: Janis Schoetterl-Glausch <scgl@...ux.ibm.com>
Cc: Oliver Upton <oupton@...gle.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>
Link: http://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/include/uapi/linux/kvm.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index bbc6b7c2dc1b3a54..91a6fe4e02c08c4b 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -562,9 +562,12 @@ struct kvm_s390_mem_op {
 	__u32 op;		/* type of operation */
 	__u64 buf;		/* buffer in userspace */
 	union {
-		__u8 ar;	/* the access register number */
+		struct {
+			__u8 ar;	/* the access register number */
+			__u8 key;	/* access key, ignored if flag unset */
+		};
 		__u32 sida_offset; /* offset into the sida */
-		__u8 reserved[32]; /* should be set to 0 */
+		__u8 reserved[32]; /* ignored */
 	};
 };
 /* types for kvm_s390_mem_op->op */
@@ -572,9 +575,12 @@ struct kvm_s390_mem_op {
 #define KVM_S390_MEMOP_LOGICAL_WRITE	1
 #define KVM_S390_MEMOP_SIDA_READ	2
 #define KVM_S390_MEMOP_SIDA_WRITE	3
+#define KVM_S390_MEMOP_ABSOLUTE_READ	4
+#define KVM_S390_MEMOP_ABSOLUTE_WRITE	5
 /* flags for kvm_s390_mem_op->flags */
 #define KVM_S390_MEMOP_F_CHECK_ONLY		(1ULL << 0)
 #define KVM_S390_MEMOP_F_INJECT_EXCEPTION	(1ULL << 1)
+#define KVM_S390_MEMOP_F_SKEY_PROTECTION	(1ULL << 2)
 
 /* for KVM_INTERRUPT */
 struct kvm_interrupt {
@@ -1137,6 +1143,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_PPC_AIL_MODE_3 210
 #define KVM_CAP_S390_MEM_OP_EXTENSION 211
 #define KVM_CAP_PMU_CAPABILITY 212
+#define KVM_CAP_DISABLE_QUIRKS2 213
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
2.35.1