linux-kernel - [PATCH 08/15] hyperv: dedup crash msr related definitions

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Date:   Tue, 20 Dec 2016 18:55:55 +0300
From:   Roman Kagan <rkagan@...tuozzo.com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>
CC:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, <x86@...nel.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devel@...uxdriverproject.org>,
        "Denis V . Lunev" <den@...nvz.org>,
        Roman Kagan <rkagan@...tuozzo.com>
Subject: [PATCH 08/15] hyperv: dedup crash msr related definitions

Use the definitions already present in the uapi header throughout the
guest driver, too.

Signed-off-by: Roman Kagan <rkagan@...tuozzo.com>
---
 drivers/hv/hyperv_vmbus.h | 11 -----------
 drivers/hv/vmbus_drv.c    |  6 +++---
 2 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 9b0f1c9..7bf1b10 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -39,17 +39,6 @@
  */
 #define HV_UTIL_NEGO_TIMEOUT 55
 
-#define  HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE   0x400
-
-#define HV_X64_MSR_CRASH_P0   0x40000100
-#define HV_X64_MSR_CRASH_P1   0x40000101
-#define HV_X64_MSR_CRASH_P2   0x40000102
-#define HV_X64_MSR_CRASH_P3   0x40000103
-#define HV_X64_MSR_CRASH_P4   0x40000104
-#define HV_X64_MSR_CRASH_CTL  0x40000105
-
-#define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63)
-
 /* Define version of the synthetic interrupt controller. */
 #define HV_SYNIC_VERSION		(1)
 
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 13dd210..7564a7b 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -77,7 +77,7 @@ static void hyperv_report_panic(struct pt_regs *regs)
 	/*
 	 * Let Hyper-V know there is crash data available
 	 */
-	wrmsrl(HV_X64_MSR_CRASH_CTL, HV_CRASH_CTL_CRASH_NOTIFY);
+	wrmsrl(HV_X64_MSR_CRASH_CTL, HV_X64_MSR_CRASH_CTL_NOTIFY);
 }
 
 static int hyperv_panic_event(struct notifier_block *nb, unsigned long val,
@@ -993,7 +993,7 @@ static int vmbus_bus_init(void)
 	/*
 	 * Only register if the crash MSRs are available
 	 */
-	if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) {
+	if (ms_hyperv.misc_features & HV_X64_GUEST_CRASH_MSR_AVAILABLE) {
 		register_die_notifier(&hyperv_die_block);
 		atomic_notifier_chain_register(&panic_notifier_list,
 					       &hyperv_panic_block);
@@ -1535,7 +1535,7 @@ static void __exit vmbus_exit(void)
 	for_each_online_cpu(cpu)
 		tasklet_kill(hv_context.msg_dpc[cpu]);
 	vmbus_free_channels();
-	if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) {
+	if (ms_hyperv.misc_features & HV_X64_GUEST_CRASH_MSR_AVAILABLE) {
 		unregister_die_notifier(&hyperv_die_block);
 		atomic_notifier_chain_unregister(&panic_notifier_list,
 						 &hyperv_panic_block);
-- 
2.9.3