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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>,
	Maxim Levitsky <mlevitsk@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Sasha Levin <sashal@kernel.org>,
	seanjc@google.com, tglx@linutronix.de, mingo@redhat.com,
	bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org,
	kvm@vger.kernel.org
Subject: [PATCH AUTOSEL 5.18 53/54] KVM: nVMX: Always enable TSC scaling for L2 when it was enabled for L1
Date: Tue, 19 Jul 2022 21:10:30 -0400	[thread overview]
Message-ID: <20220720011031.1023305-53-sashal@kernel.org> (raw)
In-Reply-To: <20220720011031.1023305-1-sashal@kernel.org>

From: Vitaly Kuznetsov <vkuznets@redhat.com>

[ Upstream commit 99482726452bdf8be9325199022b17fa6d7d58fe ]

Windows 10/11 guests with Hyper-V role (WSL2) enabled are observed to
hang upon boot or shortly after when a non-default TSC frequency was
set for L1. The issue is observed on a host where TSC scaling is
supported. The problem appears to be that Windows doesn't use TSC
frequency for its guests even when the feature is advertised and KVM
filters SECONDARY_EXEC_TSC_SCALING out when creating L2 controls from
L1's. This leads to L2 running with the default frequency (matching
host's) while L1 is running with an altered one.

Keep SECONDARY_EXEC_TSC_SCALING in secondary exec controls for L2 when
it was set for L1. TSC_MULTIPLIER is already correctly computed and
written by prepare_vmcs02().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220712135009.952805-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/vmx/nested.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 28ccf25c4124..223de8e0dd5f 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2279,7 +2279,6 @@ static void prepare_vmcs02_early(struct vcpu_vmx *vmx, struct loaded_vmcs *vmcs0
 				  SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
 				  SECONDARY_EXEC_APIC_REGISTER_VIRT |
 				  SECONDARY_EXEC_ENABLE_VMFUNC |
-				  SECONDARY_EXEC_TSC_SCALING |
 				  SECONDARY_EXEC_DESC);
 
 		if (nested_cpu_has(vmcs12,
-- 
2.35.1


  parent reply	other threads:[~2022-07-20  1:16 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-20  1:09 [PATCH AUTOSEL 5.18 01/54] Revert "evm: Fix memleak in init_desc" Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 02/54] ARM: rockchip: Add missing of_node_put() in rockchip_suspend_init() Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 03/54] x86/kvm/vmx: Make noinstr clean Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 04/54] x86/cpufeatures: Move RETPOLINE flags to word 11 Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 05/54] x86/retpoline: Cleanup some #ifdefery Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 06/54] x86/retpoline: Swizzle retpoline thunk Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 07/54] x86/retpoline: Use -mfunction-return Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 08/54] x86,objtool: Create .return_sites Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 09/54] x86/kvm: Fix SETcc emulation for return thunks Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 10/54] x86/vsyscall_emu/64: Don't use RET in vsyscall emulation Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 11/54] x86/sev: Avoid using __x86_return_thunk Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 12/54] objtool: Treat .text.__x86.* as noinstr Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 13/54] x86/bugs: Report AMD retbleed vulnerability Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 14/54] x86/bugs: Add AMD retbleed= boot parameter Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 15/54] x86/bugs: Enable STIBP for JMP2RET Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 16/54] x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 17/54] x86/bugs: Optimize SPEC_CTRL MSR writes Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 18/54] x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation() Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 19/54] x86/bugs: Report Intel retbleed vulnerability Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 20/54] objtool: Update Retpoline validation Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 21/54] x86/xen: Rename SYS* entry points Sasha Levin
2022-07-20  1:09 ` [PATCH AUTOSEL 5.18 22/54] x86/bugs: Do IBPB fallback check only once Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 23/54] x86/cpu/amd: Add Spectral Chicken Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 24/54] x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 25/54] KVM: VMX: Flatten __vmx_vcpu_run() Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 26/54] KVM: VMX: Convert launched argument to flags Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 27/54] KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 28/54] tty: Add N_CAN327 line discipline ID for ELM327 based CAN driver Sasha Levin
2022-07-25  5:35   ` Jiri Slaby
2022-07-25  7:00     ` Greg Kroah-Hartman
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 29/54] wifi: mac80211: check skb_shared in ieee80211_8023_xmit() Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 30/54] wifi: mac80211: do not wake queues on a vif that is being stopped Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 31/54] wifi: cfg80211: Allow P2P client interface to indicate port authorization Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 32/54] drm: panel-orientation-quirks: Add quirk for the Lenovo Yoga Tablet 2 830 Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 33/54] nilfs2: fix incorrect masking of permission flags for symlinks Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 34/54] xdp: Fix spurious packet loss in generic XDP TX path Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 35/54] drm/ssd130x: Fix pre-charge period setting Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 36/54] ASoC: ti: omap-mcbsp: duplicate sysfs error Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 37/54] ASoC: tlv320adcx140: Fix tx_mask check Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 38/54] ASoC: wcd9335: Use int array instead of bitmask for TX mixers Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 39/54] ASoC: wm5102: Fix event generation for output compensation Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 40/54] ASoC: wm8998: Fix event generation for input mux Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 41/54] ASoC: cs47l92: Fix event generation for OUT1 demux Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 42/54] ASoC: arizona: Update arizona_aif_cfg_changed to use RX_BCLK_RATE Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 43/54] ASoC: qdsp6: fix potential memory leak in q6apm_get_audioreach_graph() Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 44/54] ASoC: rt5640: Fix the wrong state of JD1 and JD2 Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 45/54] scsi: target: Fix WRITE_SAME No Data Buffer crash Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 46/54] x86/kexec: Disable RET on kexec Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 47/54] platform/x86: gigabyte-wmi: add support for B660I AORUS PRO DDR4 Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 48/54] platform/x86: asus-wmi: Add key mappings Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 49/54] platform/x86: intel_atomisp2_led: Also turn off the always-on camera LED on the Asus T100TAF Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 50/54] scsi: ufs: core: Fix missing clk change notification on host reset Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 51/54] scsi: pm80xx: Fix 'Unknown' max/min linkrate Sasha Levin
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 52/54] scsi: pm80xx: Set stopped phy's linkrate to Disabled Sasha Levin
2022-07-20  1:10 ` Sasha Levin [this message]
2022-07-20  1:10 ` [PATCH AUTOSEL 5.18 54/54] ubsan: disable UBSAN_DIV_ZERO for clang Sasha Levin

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