linux-kernel - [PATCH FYI] tools kvm headers arm64: Update KVM headers from the kernel sources

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Date:   Wed, 30 Mar 2022 13:14:25 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Marc Zyngier <maz@...nel.org>, Will Deacon <will@...nel.org>,
        Alexandru Elisei <alexandru.elisei@....com>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH FYI] tools kvm headers arm64: Update KVM headers from the
 kernel sources

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

- Arnaldo

---

To pick the changes from:

  34739fd95fab3a5e ("KVM: arm64: Indicate SYSTEM_RESET2 in kvm_run::system_event flags field")
  583cda1b0e7d5d49 ("KVM: arm64: Refuse to run VCPU if the PMU doesn't match the physical CPU")

That don't causes any changes in tooling (when built on x86), only
addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Marc Zyngier <maz@...nel.org>
Cc: Will Deacon <will@...nel.org>
Cc: Alexandru Elisei <alexandru.elisei@....com>
Link: https://lore.kernel.org/lkml/
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/arch/arm64/include/uapi/asm/kvm.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h
index 490d489d0ee84518..c1b6ddc02d2ff96e 100644
--- a/tools/arch/arm64/include/uapi/asm/kvm.h
+++ b/tools/arch/arm64/include/uapi/asm/kvm.h
@@ -419,6 +419,16 @@ struct kvm_arm_copy_mte_tags {
 #define KVM_PSCI_RET_INVAL		PSCI_RET_INVALID_PARAMS
 #define KVM_PSCI_RET_DENIED		PSCI_RET_DENIED
 
+/* arm64-specific kvm_run::system_event flags */
+/*
+ * Reset caused by a PSCI v1.1 SYSTEM_RESET2 call.
+ * Valid only when the system event has a type of KVM_SYSTEM_EVENT_RESET.
+ */
+#define KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2	(1ULL << 0)
+
+/* run->fail_entry.hardware_entry_failure_reason codes. */
+#define KVM_EXIT_FAIL_ENTRY_CPU_UNSUPPORTED	(1ULL << 0)
+
 #endif
 
 #endif /* __ARM_KVM_H__ */
-- 
2.35.1