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Tue, 8 Sep 2020 14:29:17 +0000 (UTC) Date: Tue, 8 Sep 2020 16:29:14 +0200 From: Igor Mammedov To: qemu-devel@nongnu.org Subject: Re: [PATCH v5 00/10] x86: fix cpu hotplug with secure boot Message-ID: <20200908162914.73d5d229@imammedo-mac> In-Reply-To: <20200907112348.530921-1-imammedo@redhat.com> References: <20200907112348.530921-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=imammedo@redhat.com X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=207.211.31.120; envelope-from=imammedo@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/08 00:33:58 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: boris.ostrovsky@oracle.com, lersek@redhat.com, aaron.young@oracle.com, mst@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, 7 Sep 2020 07:23:38 -0400 Igor Mammedov wrote: > v5: > - fix hotplug on Windows when there is more than 256 possible CPUs > (Windows isn't able to handle VarPackage over 255 elements > so process CPUs in batches) > - fix off-by-one in package length (Laszlo) > - fix not selecting CPU before clearing insert event (Laszlo) > - use aml_lgreater() instead of aml_lnot(aml_equal(num_added_cpus, zero) (Laszlo) > - split 'x68: acpi: trigger SMI before sending hotplug Notify event to OSPM' > in samller chunks (Laszlo) > - fix comment to match spec (Laszlo) > - reorder aml_lor() and aml_land() in header (Laszlo) > v4: > - fix 5.2 machine types so they won't apply pc_compat_5_1 (Laszlo) > v3: > - rebase on top of "[PATCH v2] hw: add compat machines for 5.2" > so apply that before this patch > v2: > - AML: clean is_inserted flag only after SMI callback > - make x-smi-cpu-hotunplug false by default > - massage error hint on not supported unplug > v1: > - fix typos and some phrases (Laszlo) > - add unplug check (Laszlo) > - redo AML scan logic to avoid race when adding multiple CPUs > > CPU hotplug with Secure Boot was not really supported and firmware wasn't aware > of hotplugged CPUs (which might lead to guest crashes). During 4.2 we introduced > locked SMI handler RAM arrea to make sure that guest OS wasn't able to inject > its own SMI handler and OVMF added initial CPU hotplug support. > > This series is QEMU part of that support which lets QMVF tell QEMU that > CPU hotplug with SMI broadcast enabled is supported so that QEMU would be able > to prevent hotplug in case it's not supported and trigger SMI on hotplug when > it's necessary. Michael, Can you merge this along with Laszlo's [PATCH 00/10] edk2: adopt the edk2-stable202008 release via PCI tree, preferably in the same pull req. > > Igor Mammedov (10): > x86: lpc9: let firmware negotiate 'CPU hotplug with SMI' features > x86: cpuhp: prevent guest crash on CPU hotplug when broadcast SMI is > in use > x86: cpuhp: refuse cpu hot-unplug request earlier if not supported > acpi: add aml_land() and aml_break() primitives > tests: acpi: mark to be changed tables in > bios-tables-test-allowed-diff > x86: ich9: expose "smi_negotiated_features" as a QOM property > x86: acpi: introduce AcpiPmInfo::smi_on_cpuhp > x86: acpi: introduce the PCI0.SMI0 ACPI device > x68: acpi: trigger SMI before sending hotplug Notify event to OSPM > tests: acpi: update acpi blobs with new AML > > include/hw/acpi/aml-build.h | 2 + > include/hw/acpi/cpu.h | 1 + > include/hw/i386/ich9.h | 4 + > hw/acpi/aml-build.c | 16 +++ > hw/acpi/cpu.c | 156 ++++++++++++++++++++++++------ > hw/acpi/ich9.c | 24 ++++- > hw/i386/acpi-build.c | 35 ++++++- > hw/i386/pc.c | 15 ++- > hw/isa/lpc_ich9.c | 16 +++ > tests/data/acpi/pc/DSDT | Bin 4934 -> 5060 bytes > tests/data/acpi/pc/DSDT.acpihmat | Bin 6258 -> 6385 bytes > tests/data/acpi/pc/DSDT.bridge | Bin 6793 -> 6919 bytes > tests/data/acpi/pc/DSDT.cphp | Bin 5397 -> 5524 bytes > tests/data/acpi/pc/DSDT.dimmpxm | Bin 6587 -> 6714 bytes > tests/data/acpi/pc/DSDT.ipmikcs | Bin 5006 -> 5132 bytes > tests/data/acpi/pc/DSDT.memhp | Bin 6293 -> 6419 bytes > tests/data/acpi/pc/DSDT.numamem | Bin 4940 -> 5066 bytes > tests/data/acpi/q35/DSDT | Bin 7678 -> 7804 bytes > tests/data/acpi/q35/DSDT.acpihmat | Bin 9002 -> 9129 bytes > tests/data/acpi/q35/DSDT.bridge | Bin 7695 -> 7821 bytes > tests/data/acpi/q35/DSDT.cphp | Bin 8141 -> 8268 bytes > tests/data/acpi/q35/DSDT.dimmpxm | Bin 9331 -> 9458 bytes > tests/data/acpi/q35/DSDT.ipmibt | Bin 7753 -> 7879 bytes > tests/data/acpi/q35/DSDT.memhp | Bin 9037 -> 9163 bytes > tests/data/acpi/q35/DSDT.mmio64 | Bin 8808 -> 8934 bytes > tests/data/acpi/q35/DSDT.numamem | Bin 7684 -> 7810 bytes > tests/data/acpi/q35/DSDT.tis | Bin 8283 -> 8409 bytes > 27 files changed, 239 insertions(+), 30 deletions(-) >