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Message-ID: <158175610507.13786.11402532654877704407.tip-bot2@tip-bot2>
Date:   Sat, 15 Feb 2020 08:41:45 -0000
From:   "tip-bot2 for Arnaldo Carvalho de Melo" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Andrew Jones <drjones@...hat.com>,
        Jiri Olsa <jolsa@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [tip: perf/urgent] tools headers kvm: Sync kvm headers with the
 kernel sources

The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     391df72fbd144878e2f905d86f1e9a85a059216a
Gitweb:        https://git.kernel.org/tip/391df72fbd144878e2f905d86f1e9a85a059216a
Author:        Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate:    Wed, 12 Feb 2020 12:41:20 -03:00
Committer:     Arnaldo Carvalho de Melo <acme@...hat.com>
CommitterDate: Wed, 12 Feb 2020 12:41:20 -03:00

tools headers kvm: Sync kvm headers with the kernel sources

To pick up the changes from:

  290a6bb06de9 ("arm64: KVM: Add UAPI notes for swapped registers")

No tools changes are caused by this.

This addresses these tools/perf build warnings:

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Andrew Jones <drjones@...hat.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Marc Zyngier <maz@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/arch/arm64/include/uapi/asm/kvm.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h
index 820e575..ba85bb2 100644
--- a/tools/arch/arm64/include/uapi/asm/kvm.h
+++ b/tools/arch/arm64/include/uapi/asm/kvm.h
@@ -220,10 +220,18 @@ struct kvm_vcpu_events {
 #define KVM_REG_ARM_PTIMER_CVAL		ARM64_SYS_REG(3, 3, 14, 2, 2)
 #define KVM_REG_ARM_PTIMER_CNT		ARM64_SYS_REG(3, 3, 14, 0, 1)
 
-/* EL0 Virtual Timer Registers */
+/*
+ * EL0 Virtual Timer Registers
+ *
+ * WARNING:
+ *      KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
+ *      with the appropriate register encodings.  Their values have been
+ *      accidentally swapped.  As this is set API, the definitions here
+ *      must be used, rather than ones derived from the encodings.
+ */
 #define KVM_REG_ARM_TIMER_CTL		ARM64_SYS_REG(3, 3, 14, 3, 1)
-#define KVM_REG_ARM_TIMER_CNT		ARM64_SYS_REG(3, 3, 14, 3, 2)
 #define KVM_REG_ARM_TIMER_CVAL		ARM64_SYS_REG(3, 3, 14, 0, 2)
+#define KVM_REG_ARM_TIMER_CNT		ARM64_SYS_REG(3, 3, 14, 3, 2)
 
 /* KVM-as-firmware specific pseudo-registers */
 #define KVM_REG_ARM_FW			(0x0014 << KVM_REG_ARM_COPROC_SHIFT)

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