From: Paolo Bonzini <pbonzini@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>, Borislav Petkov <bp@alien8.de>
Cc: KVM <kvm@vger.kernel.org>,
"Marcelo Tosatti" <mtosatti@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
"Huang Ying" <ying.huang@intel.com>,
"Andreas Färber" <afaerber@suse.de>,
"Richard Henderson" <rth@twiddle.net>
Subject: Re: [PATCH] target-i386: Do not set MCG_SER_P by default
Date: Mon, 23 Nov 2015 15:47:44 +0100 [thread overview]
Message-ID: <56532710.8030607@redhat.com> (raw)
In-Reply-To: <20151123132237.GM23717@thinpad.lan.raisama.net>
On 23/11/2015 14:22, Eduardo Habkost wrote:
> > Software Error Recovery, i.e. SER, is purely an Intel feature and it
> > shouldn't be set by default. Enable it only on Intel.
>
> What happens when SER is enabled on an AMD CPU? If it really
> should't be enabled, why is KVM returning it on
> KVM_X86_GET_MCE_CAP_SUPPORTED?
Indeed... is it a problem if our frankenstein AMD CPU can recover from
memory errors?
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>, Borislav Petkov <bp@alien8.de>
Cc: KVM <kvm@vger.kernel.org>,
"Marcelo Tosatti" <mtosatti@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
"Huang Ying" <ying.huang@intel.com>,
"Andreas Färber" <afaerber@suse.de>,
"Richard Henderson" <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH] target-i386: Do not set MCG_SER_P by default
Date: Mon, 23 Nov 2015 15:47:44 +0100 [thread overview]
Message-ID: <56532710.8030607@redhat.com> (raw)
In-Reply-To: <20151123132237.GM23717@thinpad.lan.raisama.net>
On 23/11/2015 14:22, Eduardo Habkost wrote:
> > Software Error Recovery, i.e. SER, is purely an Intel feature and it
> > shouldn't be set by default. Enable it only on Intel.
>
> What happens when SER is enabled on an AMD CPU? If it really
> should't be enabled, why is KVM returning it on
> KVM_X86_GET_MCE_CAP_SUPPORTED?
Indeed... is it a problem if our frankenstein AMD CPU can recover from
memory errors?
Paolo
next prev parent reply other threads:[~2015-11-23 14:47 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 23:01 [PATCH] target-i386: Do not set MCG_SER_P by default Borislav Petkov
2015-11-20 23:11 ` Andreas Färber
2015-11-20 23:11 ` [Qemu-devel] " Andreas Färber
2015-11-21 1:09 ` Borislav Petkov
2015-11-21 1:09 ` [Qemu-devel] " Borislav Petkov
2015-11-23 13:22 ` Eduardo Habkost
2015-11-23 13:22 ` [Qemu-devel] " Eduardo Habkost
2015-11-23 14:47 ` Paolo Bonzini [this message]
2015-11-23 14:47 ` Paolo Bonzini
2015-11-23 15:03 ` Borislav Petkov
2015-11-23 15:03 ` [Qemu-devel] " Borislav Petkov
2015-11-23 15:11 ` MCG_CAP ABI breakage (was Re: [Qemu-devel] [PATCH] target-i386: Do not set MCG_SER_P by default) Eduardo Habkost
2015-11-23 15:11 ` [Qemu-devel] MCG_CAP ABI breakage (was " Eduardo Habkost
2015-11-23 16:43 ` MCG_CAP ABI breakage (was Re: [Qemu-devel] " Borislav Petkov
2015-11-23 16:43 ` [Qemu-devel] MCG_CAP ABI breakage (was " Borislav Petkov
2015-11-23 19:42 ` MCG_CAP ABI breakage (was Re: [Qemu-devel] " Eduardo Habkost
2015-11-23 19:42 ` [Qemu-devel] MCG_CAP ABI breakage (was " Eduardo Habkost
2015-11-23 20:46 ` MCG_CAP ABI breakage (was Re: [Qemu-devel] " Borislav Petkov
2015-11-23 20:46 ` [Qemu-devel] MCG_CAP ABI breakage (was " Borislav Petkov
2015-11-24 16:36 ` MCG_CAP ABI breakage (was Re: [Qemu-devel] " Eduardo Habkost
2015-11-24 16:36 ` [Qemu-devel] MCG_CAP ABI breakage (was " Eduardo Habkost
2015-11-24 18:44 ` MCG_CAP ABI breakage (was Re: [Qemu-devel] " Borislav Petkov
2015-11-24 18:44 ` [Qemu-devel] MCG_CAP ABI breakage (was " Borislav Petkov
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