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From: Babu Moger <babu.moger@amd.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	Jim Mattson <jmattson@google.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	kvm list <kvm@vger.kernel.org>, Joerg Roedel <joro@8bytes.org>,
	the arch/x86 maintainers <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Makarand Sonare <makarandsonare@google.com>,
	Sean Christopherson <seanjc@google.com>
Subject: Re: [PATCH v6 00/12] SVM cleanup and INVPCID feature support
Date: Thu, 11 Mar 2021 16:15:37 -0600	[thread overview]
Message-ID: <4a72f780-3797-229e-a938-6dc5b14bec8d@amd.com> (raw)
In-Reply-To: <d3e9e091-0fc8-1e11-ab99-9c8be086f1dc@amd.com>



On 3/11/21 4:04 PM, Babu Moger wrote:
> 
> 
> On 3/11/21 3:40 PM, Borislav Petkov wrote:
>> On Thu, Mar 11, 2021 at 02:57:04PM -0600, Babu Moger wrote:
>>>  It is related PCID and INVPCID combination. Few more details.
>>>  1. System comes up fine with "noinvpid". So, it happens when invpcid is
>>> enabled.
>>
>> Which system, host or guest?
>>
>>>  2. Host is coming up fine. Problem is with the guest.
>>
>> Aha, guest.
>>
>>>  3. Problem happens with Debian 9. Debian kernel version is 4.9.0-14.
>>>  4. Debian 10 is fine.
>>>  5. Upstream kernels are fine. Tried on v5.11 and it is working fine.
>>>  6. Git bisect pointed to commit 47811c66356d875e76a6ca637a9d384779a659bb.
>>>
>>>  Let me know if want me to try something else.
>>
>> Yes, I assume host has the patches which belong to this thread?
> 
> Yes. Host has all these patches. Right now I am on 5.12.0-rc2. I just
> updated yesterday. I was able to reproduce 5.11 also.
> 
> 
>>
>> So please describe:
>>
>> 1. host has these patches, cmdline params, etc.

My host is
# cat /etc/redhat-release
Red Hat Enterprise Linux release 8.3 (Ootpa)
# uname -r
5.12.0-rc2+


> 
> # cat /proc/cmdline
> BOOT_IMAGE=(hd0,gpt2)/vmlinuz-5.12.0-rc2+ root=/dev/mapper/rhel-root ro
> crashkernel=auto resume=/dev/mapper/rhel-swap rd.lvm.lv=rhel/root
> rd.lvm.lv=rhel/swap ras=cec_disable nmi_watchdog=0 warn_ud2=on selinux=0
> earlyprintk=serial,ttyS1,115200n8 console=ttyS1,115200n8
> 
> 
>> 2. guest is a 4.9 kernel, cmdline params, etc.
> 
> I use qemu command line to bring up the guest. Make sure to use "-cpu host".
> 
> qemu-system-x86_64 -name deb9 -m 16384 -smp cores=16,threads=1,sockets=1
> -hda vdisk-deb.qcow2 -enable-kvm -net nic  -net
> bridge,br=virbr0,helper=/usr/libexec/qemu-bridge-helper -cpu host,+svm
> -nographic
> 
> 
> The grub command line looks like this on the guest.
> 
> cat /proc/cmdline
> BOOT_IMAGE=/boot/vmlinuz-4.9.0-14-amd64
> root=UUID=a0069240-cd60-4795-a391-273266dbae29 ro console=ttyS0,112500n8
> earlyprintk
> 

  reply	other threads:[~2021-03-11 22:16 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-11 19:27 [PATCH v6 00/12] SVM cleanup and INVPCID feature support Babu Moger
2020-09-11 19:27 ` [PATCH v6 01/12] KVM: SVM: Introduce vmcb_(set_intercept/clr_intercept/_is_intercept) Babu Moger
2020-09-11 19:28 ` [PATCH v6 02/12] KVM: SVM: Change intercept_cr to generic intercepts Babu Moger
2020-09-11 19:28 ` [PATCH v6 03/12] KVM: SVM: Change intercept_dr " Babu Moger
2020-09-11 19:28 ` [PATCH v6 04/12] KVM: SVM: Modify intercept_exceptions " Babu Moger
2020-09-12 16:52   ` Paolo Bonzini
2020-09-14 15:06     ` Sean Christopherson
2020-09-22 13:39       ` Paolo Bonzini
2020-09-22 19:11         ` Babu Moger
2020-09-23  2:43           ` Paolo Bonzini
2020-09-23 13:35             ` Babu Moger
2020-09-11 19:28 ` [PATCH v6 05/12] KVM: SVM: Modify 64 bit intercept field to two 32 bit vectors Babu Moger
2020-09-11 19:28 ` [PATCH v6 06/12] KVM: SVM: Add new intercept vector in vmcb_control_area Babu Moger
2020-09-11 19:28 ` [PATCH v6 07/12] KVM: nSVM: Cleanup nested_state data structure Babu Moger
2020-09-11 19:28 ` [PATCH v6 08/12] KVM: SVM: Remove set_cr_intercept, clr_cr_intercept and is_cr_intercept Babu Moger
2020-09-11 19:28 ` [PATCH v6 09/12] KVM: SVM: Remove set_exception_intercept and clr_exception_intercept Babu Moger
2020-09-11 19:29 ` [PATCH v6 10/12] KVM: X86: Rename and move the function vmx_handle_memory_failure to x86.c Babu Moger
2020-09-11 19:29 ` [PATCH v6 11/12] KVM: X86: Move handling of INVPCID types to x86 Babu Moger
2020-09-11 19:29 ` [PATCH v6 12/12] KVM:SVM: Enable INVPCID feature on AMD Babu Moger
2020-09-12 17:08 ` [PATCH v6 00/12] SVM cleanup and INVPCID feature support Paolo Bonzini
2020-09-14 15:05   ` Sean Christopherson
2020-09-14 18:33   ` Babu Moger
2021-01-19 23:01     ` Jim Mattson
2021-01-19 23:45       ` Babu Moger
2021-01-20 21:14         ` Jim Mattson
2021-01-20 21:45           ` Babu Moger
2021-01-21  3:10             ` Babu Moger
2021-01-21 23:51               ` Babu Moger
2021-01-23  1:52                 ` Babu Moger
2021-02-24  0:13                   ` Jim Mattson
2021-02-24 22:17                     ` Babu Moger
2021-03-10  1:04                       ` Babu Moger
2021-03-10  9:08                         ` Paolo Bonzini
2021-03-10 14:55                           ` Babu Moger
2021-03-10 14:58                             ` Babu Moger
2021-03-10 15:31                               ` Paolo Bonzini
2021-03-11  1:21                                 ` Babu Moger
2021-03-11 20:07                                   ` Borislav Petkov
2021-03-11 20:32                                     ` Borislav Petkov
2021-03-11 20:57                                       ` Babu Moger
2021-03-11 21:40                                         ` Borislav Petkov
2021-03-11 22:04                                           ` Babu Moger
2021-03-11 22:15                                             ` Babu Moger [this message]
2021-03-11 23:52                                               ` Borislav Petkov
2021-03-12 14:53                                                 ` Babu Moger
2021-03-12 16:12                                                 ` Babu Moger
2021-03-24 21:21                                                   ` Borislav Petkov
2021-03-24 21:59                                                     ` Paolo Bonzini
2021-03-25  0:05                                                     ` Hugh Dickins
2021-03-25  2:43                                                       ` Hugh Dickins
2021-03-25  9:56                                                         ` Borislav Petkov
2021-03-25 10:29                                                           ` [PATCH] x86/tlb: Flush global mappings when KAISER is disabled Borislav Petkov
2021-03-25 10:52                                                             ` Paolo Bonzini
2021-03-25 15:13                                                             ` Babu Moger
2021-03-25 16:33                                                             ` Hugh Dickins
2021-03-25 19:00                                                               ` Jim Mattson
2021-03-25 20:09                                                             ` Borislav Petkov
2021-03-25 20:36                                                               ` Sasha Levin
2021-03-25 23:19                                                                 ` Sasha Levin
2021-03-25 23:56                                                                   ` Ben Hutchings
2021-03-11 21:23                                       ` [PATCH v6 00/12] SVM cleanup and INVPCID feature support Jim Mattson
2021-03-11 21:36                                         ` Borislav Petkov
2021-03-11 21:50                                           ` Babu Moger

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