From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Juergen Gross <jgross@suse.com>,
linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
x86@kernel.org
Cc: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com,
stable@vger.kernel.org
Subject: Re: [PATCH] x86/xen: add call of speculative_store_bypass_ht_init() to pv paths
Date: Thu, 21 Jun 2018 09:01:59 -0400 [thread overview]
Message-ID: <0637b981-c3cf-b1e7-5c1b-41f77bedc290@oracle.com> (raw)
In-Reply-To: <20180621084331.21228-1-jgross@suse.com>
On 06/21/2018 04:43 AM, Juergen Gross wrote:
> Commit 1f50ddb4f4189243c05926b842dc1a0332195f31 ("x86/speculation:
> Handle HT correctly on AMD") added speculative_store_bypass_ht_init()
> to the per-cpu initialization sequence.
>
> speculative_store_bypass_ht_init() needs to be called on each cpu for
> pv guests, too.
>
> Reported-by: Brian Woods <brian.woods@amd.com>
> Fixes: 1f50ddb4f4189243c05926b842dc1a0332195f31 ("x86/speculation: Handle HT correctly on AMD")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Juergen Gross <jgross@suse.com>
> Tested-by: Brian Woods <brian.woods@amd.com>
>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
next prev parent reply other threads:[~2018-06-21 13:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-21 8:43 [PATCH] x86/xen: add call of speculative_store_bypass_ht_init() to pv paths Juergen Gross
2018-06-21 13:01 ` Boris Ostrovsky
2018-06-21 13:01 ` Boris Ostrovsky [this message]
2018-06-21 8:43 Juergen Gross
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