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[PATCH for v4.9 LTS 69/86] KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems

From "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com>
Newsgroups linux.kernel
Subject [PATCH for v4.9 LTS 69/86] KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems
Date 2017-06-18 00:40 +0200
Message-ID <tTuxR-5dy-59@gated-at.bofh.it> (permalink)
References <tTuo9-58F-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Jintack Lim <jintack@cs.columbia.edu>

[ Upstream commit 488f94d7212b00a2ec72fb886b155f1b04c5aa98 ]

Current KVM world switch code is unintentionally setting wrong bits to
CNTHCTL_EL2 when E2H == 1, which may allow guest OS to access physical
timer.  Bit positions of CNTHCTL_EL2 are changing depending on
HCR_EL2.E2H bit.  EL1PCEN and EL1PCTEN are 1st and 0th bits when E2H is
not set, but they are 11th and 10th bits respectively when E2H is set.

In fact, on VHE we only need to set those bits once, not for every world
switch. This is because the host kernel runs in EL2 with HCR_EL2.TGE ==
1, which makes those bits have no effect for the host kernel execution.
So we just set those bits once for guests, and that's it.

Signed-off-by: Jintack Lim <jintack@cs.columbia.edu>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
 arch/arm/include/asm/virt.h   |  5 +++++
 arch/arm/kvm/arm.c            |  3 +++
 arch/arm64/include/asm/virt.h |  9 +++++++++
 include/kvm/arm_arch_timer.h  |  1 +
 virt/kvm/arm/arch_timer.c     | 23 +++++++++++++++++++++++
 virt/kvm/arm/hyp/timer-sr.c   | 33 +++++++++++++++++++++------------
 6 files changed, 62 insertions(+), 12 deletions(-)

diff --git a/arch/arm/include/asm/virt.h b/arch/arm/include/asm/virt.h
index a2e75b84e2ae..6dae1956c74d 100644
--- a/arch/arm/include/asm/virt.h
+++ b/arch/arm/include/asm/virt.h
@@ -80,6 +80,11 @@ static inline bool is_kernel_in_hyp_mode(void)
 	return false;
 }
 
+static inline bool has_vhe(void)
+{
+	return false;
+}
+
 /* The section containing the hypervisor idmap text */
 extern char __hyp_idmap_text_start[];
 extern char __hyp_idmap_text_end[];
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 19b5f5c1c0ff..60d031642798 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -1093,6 +1093,9 @@ static void cpu_init_hyp_mode(void *dummy)
 	__cpu_init_hyp_mode(pgd_ptr, hyp_stack_ptr, vector_ptr);
 	__cpu_init_stage2();
 
+	if (is_kernel_in_hyp_mode())
+		kvm_timer_init_vhe();
+
 	kvm_arm_init_debug();
 }
 
diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index fea10736b11f..439f6b5d31f6 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -47,6 +47,7 @@
 #include <asm/ptrace.h>
 #include <asm/sections.h>
 #include <asm/sysreg.h>
+#include <asm/cpufeature.h>
 
 /*
  * __boot_cpu_mode records what mode CPUs were booted in.
@@ -80,6 +81,14 @@ static inline bool is_kernel_in_hyp_mode(void)
 	return read_sysreg(CurrentEL) == CurrentEL_EL2;
 }
 
+static inline bool has_vhe(void)
+{
+	if (cpus_have_const_cap(ARM64_HAS_VIRT_HOST_EXTN))
+		return true;
+
+	return false;
+}
+
 #ifdef CONFIG_ARM64_VHE
 extern void verify_cpu_run_el(void);
 #else
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h
index dda39d8fa189..2d5490375e0d 100644
--- a/include/kvm/arm_arch_timer.h
+++ b/include/kvm/arm_arch_timer.h
@@ -76,4 +76,5 @@ void kvm_timer_unschedule(struct kvm_vcpu *vcpu);
 
 void kvm_timer_vcpu_put(struct kvm_vcpu *vcpu);
 
+void kvm_timer_init_vhe(void);
 #endif
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 27a1f6341d41..0ebd0dc39cd4 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -24,6 +24,7 @@
 
 #include <clocksource/arm_arch_timer.h>
 #include <asm/arch_timer.h>
+#include <asm/kvm_hyp.h>
 
 #include <kvm/arm_vgic.h>
 #include <kvm/arm_arch_timer.h>
@@ -517,3 +518,25 @@ void kvm_timer_init(struct kvm *kvm)
 {
 	kvm->arch.timer.cntvoff = kvm_phys_timer_read();
 }
+
+/*
+ * On VHE system, we only need to configure trap on physical timer and counter
+ * accesses in EL0 and EL1 once, not for every world switch.
+ * The host kernel runs at EL2 with HCR_EL2.TGE == 1,
+ * and this makes those bits have no effect for the host kernel execution.
+ */
+void kvm_timer_init_vhe(void)
+{
+	/* When HCR_EL2.E2H ==1, EL1PCEN and EL1PCTEN are shifted by 10 */
+	u32 cnthctl_shift = 10;
+	u64 val;
+
+	/*
+	 * Disallow physical timer access for the guest.
+	 * Physical counter access is allowed.
+	 */
+	val = read_sysreg(cnthctl_el2);
+	val &= ~(CNTHCTL_EL1PCEN << cnthctl_shift);
+	val |= (CNTHCTL_EL1PCTEN << cnthctl_shift);
+	write_sysreg(val, cnthctl_el2);
+}
diff --git a/virt/kvm/arm/hyp/timer-sr.c b/virt/kvm/arm/hyp/timer-sr.c
index 798866a8d875..63e28dd18bb0 100644
--- a/virt/kvm/arm/hyp/timer-sr.c
+++ b/virt/kvm/arm/hyp/timer-sr.c
@@ -35,10 +35,16 @@ void __hyp_text __timer_save_state(struct kvm_vcpu *vcpu)
 	/* Disable the virtual timer */
 	write_sysreg_el0(0, cntv_ctl);
 
-	/* Allow physical timer/counter access for the host */
-	val = read_sysreg(cnthctl_el2);
-	val |= CNTHCTL_EL1PCTEN | CNTHCTL_EL1PCEN;
-	write_sysreg(val, cnthctl_el2);
+	/*
+	 * We don't need to do this for VHE since the host kernel runs in EL2
+	 * with HCR_EL2.TGE ==1, which makes those bits have no impact.
+	 */
+	if (!has_vhe()) {
+		/* Allow physical timer/counter access for the host */
+		val = read_sysreg(cnthctl_el2);
+		val |= CNTHCTL_EL1PCTEN | CNTHCTL_EL1PCEN;
+		write_sysreg(val, cnthctl_el2);
+	}
 
 	/* Clear cntvoff for the host */
 	write_sysreg(0, cntvoff_el2);
@@ -50,14 +56,17 @@ void __hyp_text __timer_restore_state(struct kvm_vcpu *vcpu)
 	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
 	u64 val;
 
-	/*
-	 * Disallow physical timer access for the guest
-	 * Physical counter access is allowed
-	 */
-	val = read_sysreg(cnthctl_el2);
-	val &= ~CNTHCTL_EL1PCEN;
-	val |= CNTHCTL_EL1PCTEN;
-	write_sysreg(val, cnthctl_el2);
+	/* Those bits are already configured at boot on VHE-system */
+	if (!has_vhe()) {
+		/*
+		 * Disallow physical timer access for the guest
+		 * Physical counter access is allowed
+		 */
+		val = read_sysreg(cnthctl_el2);
+		val &= ~CNTHCTL_EL1PCEN;
+		val |= CNTHCTL_EL1PCTEN;
+		write_sysreg(val, cnthctl_el2);
+	}
 
 	if (timer->enabled) {
 		write_sysreg(kvm->arch.timer.cntvoff, cntvoff_el2);
-- 
2.11.0

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[PATCH for v4.9 LTS 01/86] sparc64: Handle PIO & MEM non-resumable  errors. "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 80/86] be2net: don't delete MAC on close on  unprivileged BE3 VFs "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 81/86] be2net: fix MAC addr setting on privileged  BE3 VFs "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 85/86] perf probe: Fix to probe on gcc generated  functions in modules "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 03/86] net: ethtool: add support for 2500BaseT  and 5000BaseT link modes "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 59/86] usb: gadget: composite: Fix function used  to free memory "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 79/86] be2net: fix status check in  be_cmd_pmac_add() "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 50/86] Documentation: devicetree: change the  mediatek ethernet compatible string "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 82/86] perf probe: Fix to show correct locations  for events on modules "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 84/86] tipc: allocate user memory with GFP_KERNEL  flag "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 22/86] net: phy: dp83848: add DP83620 PHY support "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 10/86] ARM64: dts: meson-gx: Add firmware  reserved memory zones "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 60/86] usb: dwc3: exynos fix axius clock error  path to do cleanup "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 20/86] drm/amdgpu: fix program vce instance logic  error. "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 76/86] swiotlb: ensure that page-sized mappings  are page-aligned "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 32/86] Btrfs: fix truncate down when no_holes  feature is enabled "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 83/86] net: phy: dp83867: allow  RGMII_TXID/RGMII_RXID interface types "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 54/86] net: phy: marvell: fix Marvell 88E1512  used in SGMII mode "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 52/86] perf/x86/intel/uncore: Fix hardcoded  socket 0 assumption in the Haswell init code "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 65/86] drm/amd/powerplay: fix vce cg logic error  on CZ/St. "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:30 +0200
  [PATCH for v4.9 LTS 43/86] vfio/spapr: fail tce_iommu_attach_group()  when iommu_data is null "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 33/86] virtio_console: fix a crash in  config_work_handler "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 55/86] mac80211: recalculate min channel width on  VHT opmode changes "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 49/86] kernel/panic.c: add missing \n "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 74/86] aio: fix lock dep warning "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 47/86] vxlan: do not age static remote mac  entries "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 36/86] xen-netfront: Fix Rx stall during network  stress and OOM "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 40/86] amd-xgbe: Check xgbe_init() return code "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 29/86] objtool: Fix IRET's opcode "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 67/86] pmem: return EIO on read_pmem() failure "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 56/86] perf/x86/intel: Use ULL constant to  prevent undefined shift behaviour "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 30/86] gianfar: Do not reuse pages from emergency  reserve "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 21/86] drm/amdgpu: add support for new hainan  variants "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 35/86] net: sctp: fix array overrun read on  sctp_timer_tbl "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 57/86] HID: i2c-hid: Add sleep between POWER ON  and RESET "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 46/86] ip6_tunnel: must reload ipv6h in  ip6ip6_tnl_xmit() "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 78/86] usb: dwc2: gadget: Fix GUSBCFG.USBTRDTIM  value "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 53/86] pinctrl: intel: Set pin direction properly "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 86/86] net/mlx4_core: Eliminate warning messages  for SRQ_LIMIT under SRIOV "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 42/86] drm/amdgpu: check ring being ready before  using "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 70/86] x86/tsc: Add the Intel Denverton Processor  to native_calibrate_tsc() "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 37/86] scsi: virtio_scsi: Reject commands when  virtqueue is broken "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 64/86] drm/radeon/si: load special ucode for  certain MC configs "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 58/86] scsi: lpfc: avoid double free of resource  identifiers "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 51/86] drm/etnaviv: trick drm_mm into giving out  a low IOVA "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 62/86] arm64: assembler: make adr_l work in  modules under KASLR "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 69/86] KVM: arm64: Access CNTHCTL_EL2 bit fields  correctly on VHE systems "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 41/86] net: dsa: Check return value of  phy_connect_direct() "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 63/86] net: thunderx: acpi: fix LMAC  initialization "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 75/86] coredump: Ensure proper size of sparse  core files "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 71/86] x86/mpx: Use compatible types in  comparison to fix sparse error "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 44/86] mlxsw: spectrum_router: Correctly  reallocate adjacency entries "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 45/86] virtio_net: fix PAGE_SIZE > 64k "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 38/86] iwlwifi: fix kernel crash when  unregistering thermal zone "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 34/86] swiotlb-xen: update dev_addr after  swapping pages "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 68/86] mac80211: initialize SMPS field in HT  capabilities "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:40 +0200
  [PATCH for v4.9 LTS 14/86] KVM: x86: fix fixing of hypercalls "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 24/86] net: ethtool: Initialize buffer when  querying device channel settings "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 23/86] powerpc/eeh: Enable IO path on permanent  error "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 26/86] xen-netback: protect resource cleaning on  XenBus disconnect "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 07/86] net: phy: use boolean dt properties for  eee broken modes "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 04/86] net: phy: add an option to disable EEE  advertisement "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 08/86] dt: bindings: net: use boolean dt  properties for eee broken modes "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 13/86] ubifs: allow encryption ioctls in compat  mode "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
    Re: [PATCH for v4.9 LTS 13/86] ubifs: allow encryption ioctls in  compat mode Eric Biggers <ebiggers@google.com> - 2017-06-19 19:10 +0200
      Re: [PATCH for v4.9 LTS 13/86] ubifs: allow encryption ioctls in  compat mode Richard Weinberger <richard@nod.at> - 2017-06-19 21:30 +0200
        Re: [PATCH for v4.9 LTS 13/86] ubifs: allow encryption ioctls in  compat mode "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-19 21:50 +0200
          Re: [PATCH for v4.9 LTS 13/86] ubifs: allow encryption ioctls in  compat mode Richard Weinberger <richard@nod.at> - 2017-06-19 22:10 +0200
  [PATCH for v4.9 LTS 25/86] xen-netback: fix memory leaks on XenBus  disconnect "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 11/86] ARM64: dts: meson-gxbb-odroidc2: fix GbE  tx link breakage "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 27/86] bnxt_en: Fix "uninitialized variable" bug  in TPA code path. "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 02/86] sparc64: Zero pages on allocation for  mondo and error queues. "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 31/86] Btrfs: Fix deadlock between direct IO and  fast fsync "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 19/86] qla2xxx: Fix erroneous invalid handle  message "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 06/86] net: phy: fix sign type error in  genphy_config_eee_advert "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 15/86] scsi: sd: Fix wrong DPOFUA disable in  sd_read_cache_type "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 16/86] stmmac: add missing of_node_put "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 05/86] dt-bindings: net: add EEE capability  constants "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 18/86] qla2xxx: Terminate exchange if corrupted "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 12/86] perf/x86/intel: Handle exclusive threadid  correctly on CPU hotplug "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200
  [PATCH for v4.9 LTS 28/86] bpf: don't trigger OOM killer under  pressure with map alloc "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com> - 2017-06-18 00:50 +0200

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