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From: Paolo Bonzini <pbonzini@redhat.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: [PATCH v7 0/5] NX 0
Date: Thu, 24 Oct 2019 20:56:23 +0200	[thread overview]
Message-ID: <1ba3f78a-3edf-43a8-98b1-24176c7cbf81@redhat.com> (raw)
In-Reply-To: <abe0cd1da2d3ba76cbca8085d075df05d24781e8.camel@decadent.org.uk>

[-- Attachment #1: Type: text/plain, Size: 1925 bytes --]

On 24/10/19 20:27, speck for Ben Hutchings wrote:
> On Thu, 2019-10-24 at 18:34 +0200, speck for Paolo Bonzini wrote:
>> From: Paolo Bonzini <pbonzini@redhat.com>
>> Subject: [PATCH v7 0/5] NX 0
>>
>>
>> v6->v7: tell nested hypervisors to disable the mitigation
> 
> Does that eliminate the need to patch qemu?

No, it *introduces* the need to patch QEMU (because QEMU now can choose
to enable that bit in MSR_IA32_ARCH_CAPABILITIES; before, it need not
know about the bit).

Paolo

> Ben.
> 
>> Junaid Shahid (2):
>>   kvm: Add helper function for creating VM worker threads
>>   kvm: x86: mmu: Recovery of shattered NX large pages
>>
>> Paolo Bonzini (1):
>>   kvm: mmu: ITLB_MULTIHIT mitigation
>>
>> Pawan Gupta (2):
>>   x86: Add ITLB_MULTIHIT bug infrastructure
>>   x86/cpu: Add Tremont to the cpu vulnerability whitelist
>>
>>  Documentation/ABI/testing/sysfs-devices-system-cpu |   1 +
>>  Documentation/admin-guide/kernel-parameters.txt    |  17 ++
>>  arch/x86/include/asm/cpufeatures.h                 |   1 +
>>  arch/x86/include/asm/kvm_host.h                    |   6 +
>>  arch/x86/include/asm/msr-index.h                   |   7 +
>>  arch/x86/kernel/cpu/bugs.c                         |  24 ++
>>  arch/x86/kernel/cpu/common.c                       |  73 +++---
>>  arch/x86/kvm/mmu.c                                 | 264 ++++++++++++++++++++-
>>  arch/x86/kvm/mmu.h                                 |   4 +
>>  arch/x86/kvm/paging_tmpl.h                         |  29 ++-
>>  arch/x86/kvm/x86.c                                 |  20 ++
>>  drivers/base/cpu.c                                 |   8 +
>>  include/linux/cpu.h                                |   2 +
>>  include/linux/kvm_host.h                           |   6 +
>>  virt/kvm/kvm_main.c                                | 114 ++++++++-
>>  15 files changed, 530 insertions(+), 46 deletions(-)
>>



      reply	other threads:[~2019-10-24 18:56 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-24 16:34 [MODERATED] " Paolo Bonzini
2019-10-24 16:34 ` [MODERATED] [PATCH v7 1/5] NX 1 Paolo Bonzini
2019-10-30 18:38   ` [MODERATED] " Josh Poimboeuf
2019-10-31 11:05     ` Paolo Bonzini
2019-10-24 16:34 ` [MODERATED] [PATCH v7 2/5] NX 2 Paolo Bonzini
2019-10-24 16:34 ` [MODERATED] [PATCH v7 3/5] NX 3 Paolo Bonzini
2019-10-25  8:37   ` [MODERATED] Re: ***UNCHECKED*** " Joerg Roedel
2019-10-25  8:48     ` Paolo Bonzini
2019-10-25  9:03       ` [MODERATED] Re: ***UNCHECKED*** " Joerg Roedel
2019-10-25  9:08         ` Paolo Bonzini
2019-10-25  9:45           ` [MODERATED] Re: ***UNCHECKED*** " Joerg Roedel
2019-10-25 10:39             ` Paolo Bonzini
2019-10-29 20:33               ` mark gross
2019-10-31 11:02                 ` Paolo Bonzini
2019-10-24 16:34 ` [MODERATED] [PATCH v7 4/5] NX 4 Paolo Bonzini
2019-10-24 16:34 ` [MODERATED] [PATCH v7 5/5] NX 5 Paolo Bonzini
2019-10-24 18:27 ` [MODERATED] Re: [PATCH v7 0/5] NX 0 Ben Hutchings
2019-10-24 18:56   ` Paolo Bonzini [this message]

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