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Thu, 24 Jun 2021 11:08:42 +0000 Subject: Re: [PATCH v2 19/24] x86/xen: Make hypercall_page noinstr To: Peter Zijlstra , jpoimboe@redhat.com, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, joro@8bytes.org, boris.ostrovsky@oracle.com, x86@kernel.org, mbenes@suse.com, rostedt@goodmis.org, dvyukov@google.com, elver@google.com References: <20210624094059.886075998@infradead.org> <20210624095148.810950584@infradead.org> From: Juergen Gross Message-ID: Date: Thu, 24 Jun 2021 13:08:42 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <20210624095148.810950584@infradead.org> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="lVdUQmGP34ZuEXOSyMSTk54PdHsCdw9x4" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --lVdUQmGP34ZuEXOSyMSTk54PdHsCdw9x4 Content-Type: multipart/mixed; boundary="pQZ7wip8D0GsodwyY815RJtKVhR62b2Wl"; protected-headers="v1" From: Juergen Gross To: Peter Zijlstra , jpoimboe@redhat.com, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, joro@8bytes.org, boris.ostrovsky@oracle.com, x86@kernel.org, mbenes@suse.com, rostedt@goodmis.org, dvyukov@google.com, elver@google.com Message-ID: Subject: Re: [PATCH v2 19/24] x86/xen: Make hypercall_page noinstr References: <20210624094059.886075998@infradead.org> <20210624095148.810950584@infradead.org> In-Reply-To: <20210624095148.810950584@infradead.org> --pQZ7wip8D0GsodwyY815RJtKVhR62b2Wl Content-Type: multipart/mixed; boundary="------------1437A8F298F127E32429BAE4" Content-Language: en-US This is a multi-part message in MIME format. --------------1437A8F298F127E32429BAE4 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 24.06.21 11:41, Peter Zijlstra wrote: > vmlinux.o: warning: objtool: xen_set_debugreg()+0x3: call to hypercall_= page() leaves .noinstr.text section > vmlinux.o: warning: objtool: xen_get_debugreg()+0x3: call to hypercall_= page() leaves .noinstr.text section > vmlinux.o: warning: objtool: xen_irq_enable()+0x24: call to hypercall_p= age() leaves .noinstr.text section >=20 > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Juergen Gross Juergen --------------1437A8F298F127E32429BAE4 Content-Type: application/pgp-keys; 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