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[95.120.215.139]) by smtp.gmail.com with ESMTPSA id d78sm15480844wmd.47.2019.09.30.03.22.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2019 03:22:26 -0700 (PDT) References: <87blv2i5ha.fsf@redhat.com> <87lfu6kuyo.fsf@linaro.org> User-agent: mu4e 1.2.0; emacs 26.2 From: Sergio Lopez To: alex.bennee@linaro.org Subject: Re: Arch info lost in "info cpus" In-reply-to: <87lfu6kuyo.fsf@linaro.org> Date: Mon, 30 Sep 2019 12:22:22 +0200 Message-ID: <878sq6hyn5.fsf@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ehabkost@redhat.com, tao3.xu@intel.com, qemu-devel@nongnu.org, mihajlov@linux.vnet.ibm.com, imammedo@redhat.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Alex Benn=C3=A9e writes: > Sergio Lopez writes: > >> Hi, >> >> Commit 137b5cb6ab565cb3781d5337591e155932b4230e (hmp: change >> hmp_info_cpus to use query-cpus-fast) updated the "info cpus" commit to >> make it more lightweight, but also removed the ability to get the >> architecture specific status of each vCPU. >> >> This information was really useful to diagnose certain Guest issues, >> without the need of using GDB, which is more intrusive and requires >> enabling it in advance. > > You can always enable the gdbserver from the HMP when you need it. > >> Is there an alternative way of getting something equivalent to what >> "info cpus" provided previously (in 2.10)? > > info registers > > should give you a full dump of the CPU state including the PC. > Both methods are less convenient that what we had before. Perhaps it'd be reasonable adding a flag to "info cpus" to give users the options of having the same behavior as before? 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