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Message-ID: <be8c1972398e45890e9a528db70e468872093b5d.camel@infradead.org>
Subject: Re: [PATCH v12 00/20] KVM: xen: update shared_info and vcpu_info
 handling
From: David Woodhouse <dwmw2@infradead.org>
To: paul@xen.org, Paolo Bonzini <pbonzini@redhat.com>, Jonathan Corbet
 <corbet@lwn.net>, Sean Christopherson <seanjc@google.com>, Thomas Gleixner
 <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov
 <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
 "H. Peter Anvin" <hpa@zytor.com>, Shuah Khan <shuah@kernel.org>,
 kvm@vger.kernel.org,  linux-doc@vger.kernel.org,
 linux-kernel@vger.kernel.org,  linux-kselftest@vger.kernel.org
Date: Thu, 25 Jan 2024 20:07:34 +0000
In-Reply-To: <2b4d020c-08ba-46ac-b004-cd9cb7256bd9@xen.org>
References: <20240115125707.1183-1-paul@xen.org>
	 <2b4d020c-08ba-46ac-b004-cd9cb7256bd9@xen.org>
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On Thu, 2024-01-25 at 15:03 +0000, Paul Durrant wrote:
> On 15/01/2024 12:56, Paul Durrant wrote:
> > From: Paul Durrant <pdurrant@amazon.com>
> >=20
> > This series has one small fix to what was in v11 [1]:
> >=20
> > * KVM: xen: re-initialize shared_info if guest (32/64-bit) mode is set
> >=20
> > The v11 patch failed to set the return code of the ioctl if the mode
> > was not actually changed, leading to a spurious failure.
> >=20
> > This version of the series also contains a new bug-fix to the pfncache
> > code from David Woodhouse.
> >=20
> > [1] https://lore.kernel.org/kvm/20231219161109.1318-1-paul@xen.org/
> >=20
>=20
> Ping?
>=20

I think it's only the final patch which is controversial, isn't it? We
can drop that for now and I can submit it under separate cover.=20

It'll be basically the same patch, just won't claim to be a bug fix:
https://lore.kernel.org/kvm/6dc0e9d1f5db41a053b734b29403ad48c288dea3.camel@=
infradead.org/

Although I'll eat my hat if that "should never happen" bug actually
does keep happening after the locking is less baroque.

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