From: Borislav Petkov <bp@alien8.de>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Babu Moger <babu.moger@amd.com>,
tglx@linutronix.de, mingo@redhat.com, x86@kernel.org,
hpa@zytor.com, seanjc@google.com, vkuznets@redhat.com,
wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org,
tony.luck@intel.com, peterz@infradead.org,
kyung.min.park@intel.com, wei.huang2@amd.com, jgross@suse.com,
andrew.cooper3@citrix.com, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: x86: Expose Predictive Store Forwarding Disable
Date: Mon, 27 Sep 2021 14:28:24 +0200 [thread overview]
Message-ID: <YVG46L++WPBAHxQv@zn.tnic> (raw)
In-Reply-To: <bcd40d94-2634-a40c-0173-64063051a4b2@redhat.com>
On Mon, Sep 27, 2021 at 02:14:52PM +0200, Paolo Bonzini wrote:
> Right, not which MSR to write but which value to write. It doesn't know
> that the PSF disable bit is valid unless the corresponding CPUID bit is set.
There's no need for the separate PSF CPUID bit yet. We have decided for
now to not control PSF separately but disable it through SSB. Please
follow this thread:
https://lore.kernel.org/all/20210904172334.lfjyqi4qfzvbxef7@treble/T/#u
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-09-27 12:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <163244601049.30292.5855870305350227855.stgit@bmoger-ubuntu>
2021-09-27 10:59 ` [PATCH] KVM: x86: Expose Predictive Store Forwarding Disable Borislav Petkov
2021-09-27 11:13 ` Paolo Bonzini
2021-09-27 12:06 ` Borislav Petkov
2021-09-27 12:14 ` Paolo Bonzini
2021-09-27 12:28 ` Borislav Petkov [this message]
2021-09-27 12:54 ` Paolo Bonzini
2021-09-27 13:38 ` Borislav Petkov
2021-09-27 15:47 ` Babu Moger
2021-09-27 15:48 ` Borislav Petkov
2021-09-28 16:04 ` Paolo Bonzini
2021-09-29 20:27 ` Babu Moger
2021-09-30 13:41 ` Paolo Bonzini
2021-09-30 14:12 ` Babu Moger
2022-08-23 21:26 ` Jim Mattson
2022-08-24 17:13 ` Paolo Bonzini
2022-08-24 17:16 ` Jim Mattson
2022-08-26 10:10 ` Paolo Bonzini
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