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Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::636; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x636.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199130107116600 The renamed state will not only represent powering state of PFs, but also represent SR-IOV VF enablement in the future. Signed-off-by: Akihiko Odaki --- include/hw/pci/pci.h | 7 ++++++- include/hw/pci/pci_device.h | 2 +- hw/pci/pci.c | 14 +++++++------- hw/pci/pci_host.c | 4 ++-- 4 files changed, 16 insertions(+), 11 deletions(-) diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index eb26cac81098..fe04b4fafd04 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -678,6 +678,11 @@ static inline void pci_irq_pulse(PCIDevice *pci_dev) } =20 MSIMessage pci_get_msi_message(PCIDevice *dev, int vector); -void pci_set_power(PCIDevice *pci_dev, bool state); +void pci_set_enabled(PCIDevice *pci_dev, bool state); + +static inline void pci_set_power(PCIDevice *pci_dev, bool state) +{ + pci_set_enabled(pci_dev, state); +} =20 #endif diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index 15694f248948..f38fb3111954 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -57,7 +57,7 @@ typedef struct PCIReqIDCache PCIReqIDCache; struct PCIDevice { DeviceState qdev; bool partially_hotplugged; - bool has_power; + bool enabled; =20 /* PCI config space */ uint8_t *config; diff --git a/hw/pci/pci.c b/hw/pci/pci.c index fab86d056721..b532888e8f6c 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -1525,7 +1525,7 @@ static void pci_update_mappings(PCIDevice *d) continue; =20 new_addr =3D pci_bar_address(d, i, r->type, r->size); - if (!d->has_power) { + if (!d->enabled) { new_addr =3D PCI_BAR_UNMAPPED; } =20 @@ -1613,7 +1613,7 @@ void pci_default_write_config(PCIDevice *d, uint32_t = addr, uint32_t val_in, int pci_update_irq_disabled(d, was_irq_disabled); memory_region_set_enabled(&d->bus_master_enable_region, (pci_get_word(d->config + PCI_COMMAND) - & PCI_COMMAND_MASTER) && d->has_power); + & PCI_COMMAND_MASTER) && d->enabled); } =20 msi_write_config(d, addr, val_in, l); @@ -2884,18 +2884,18 @@ MSIMessage pci_get_msi_message(PCIDevice *dev, int = vector) return msg; } =20 -void pci_set_power(PCIDevice *d, bool state) +void pci_set_enabled(PCIDevice *d, bool state) { - if (d->has_power =3D=3D state) { + if (d->enabled =3D=3D state) { return; } =20 - d->has_power =3D state; + d->enabled =3D state; pci_update_mappings(d); memory_region_set_enabled(&d->bus_master_enable_region, (pci_get_word(d->config + PCI_COMMAND) - & PCI_COMMAND_MASTER) && d->has_power); - if (!d->has_power) { + & PCI_COMMAND_MASTER) && d->enabled); + if (!d->enabled) { pci_device_reset(d); } } diff --git a/hw/pci/pci_host.c b/hw/pci/pci_host.c index dfe6fe618401..0d82727cc9dd 100644 --- a/hw/pci/pci_host.c +++ b/hw/pci/pci_host.c @@ -86,7 +86,7 @@ void pci_host_config_write_common(PCIDevice *pci_dev, uin= t32_t addr, * allowing direct removal of unexposed functions. */ if ((pci_dev->qdev.hotplugged && !pci_get_function_0(pci_dev)) || - !pci_dev->has_power || is_pci_dev_ejected(pci_dev)) { + !pci_dev->enabled || is_pci_dev_ejected(pci_dev)) { return; } =20 @@ -111,7 +111,7 @@ uint32_t pci_host_config_read_common(PCIDevice *pci_dev= , uint32_t addr, * allowing direct removal of unexposed functions. */ if ((pci_dev->qdev.hotplugged && !pci_get_function_0(pci_dev)) || - !pci_dev->has_power || is_pci_dev_ejected(pci_dev)) { + !pci_dev->enabled || is_pci_dev_ejected(pci_dev)) { return ~0x0; } =20 --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199218; cv=none; d=zohomail.com; s=zohoarc; b=Pe1dPqryH6CVrNfjQMczo9bzQe2W+xkMJ2vG3H9FTcpxazJiqupKOkprQvv7lyCsU3b0FhM8pj67eUJ5mRYnGArxkU6b2F4uILb1wyS0H5X1ZWo10prZGFnORpJkStiPtRJD5La/9LF0dW7Pyp4OnMbR59eEf0Ti5uCRL4ZQ6UM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1726199218; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=hZYRJCaOR7D2p7YWgr7dJo7l/TPHeAaK6dBF5pYEnfc=; b=M1wvkuPYPFcCGeiCv8GrsTrwv2mER2MMwS0C3vjZUSASr2m6NuMg3xqApR1qJx+S2WeqoVriWGsFlh6dnEl9dKVig8egIUJREYqDGh7RtGtAnhresIQZe9Rum6azT1JeuYYXtt9T5F3JNWEbykYzk1XD7UUcimJTOKzshj/SWeQ= ARC-Authentication-Results: i=1; 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Thu, 12 Sep 2024 20:44:49 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:30 +0900 Subject: [PATCH v16 02/13] hw/ppc/spapr_pci: Do not create DT for disabled PCI device MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-2-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::42c; envelope-from=akihiko.odaki@daynix.com; helo=mail-pf1-x42c.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199219703116600 Disabled means it is a disabled SR-IOV VF or it is powered off, and hidden from the guest. Signed-off-by: Akihiko Odaki Reviewed-by: Shivaprasad G Bhat --- hw/ppc/spapr_pci.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 7cf9904c3546..f63182a03c41 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1296,6 +1296,10 @@ static void spapr_dt_pci_device_cb(PCIBus *bus, PCID= evice *pdev, return; } =20 + if (!pdev->enabled) { + return; + } + err =3D spapr_dt_pci_device(p->sphb, pdev, p->fdt, p->offset); if (err < 0) { p->err =3D err; --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199221; cv=none; d=zohomail.com; s=zohoarc; b=EKPZyC1MSTHtmLjh3ipYyTmpmztpBRyWHM71vYiDHMyxWYFw0r7kX/Sl053FScihAEPXKiLKm+LST3aq2nkDkENE5WdYSedoPcKM+XVN2b7r1iEEND3nQBaS0sydpJ7giXeXk+sNkwlHRsnzrg4sdVyELYH6GY3o6VCsS/9Ny3o= ARC-Message-Signature: i=1; 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Thu, 12 Sep 2024 20:44:54 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:31 +0900 Subject: [PATCH v16 03/13] hw/ppc/spapr_pci: Do not reject VFs created after a PF MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-3-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::52d; envelope-from=akihiko.odaki@daynix.com; helo=mail-pg1-x52d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199223707116600 A PF may automatically create VFs and the PF may be function 0. Signed-off-by: Akihiko Odaki Reviewed-by: Shivaprasad G Bhat Tested-by: Shivaprasad G Bhat --- hw/ppc/spapr_pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index f63182a03c41..ed4454bbf79e 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1573,7 +1573,9 @@ static void spapr_pci_pre_plug(HotplugHandler *plug_h= andler, * hotplug, we do not allow functions to be hotplugged to a * slot that already has function 0 present */ - if (plugged_dev->hotplugged && bus->devices[PCI_DEVFN(slotnr, 0)] && + if (plugged_dev->hotplugged && + !pci_is_vf(pdev) && + bus->devices[PCI_DEVFN(slotnr, 0)] && PCI_FUNC(pdev->devfn) !=3D 0) { error_setg(errp, "PCI: slot %d function 0 already occupied by %s," " additional functions can no longer be exposed to gues= t.", --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; 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bh=ZYny33Tgh+SOHfd6MwrD3WKa5Gl+M4qnADH3DvKBPFU=; b=e1VadmwF22duoi4s2GvILqIKEf8i84qmUaAGWJkweGkC++qYjwimCiHxY+eeRlYOz0 qzS+mRukZL7MNCrkwv/LDZllOvH/jfs5lwct24oUoEMT84+SYrYZoF8Uk3HX6zpypBec P22flniwFZjkup3oPRxLy9FdQSTT7pxXmM9eAB7uuKiZ6UppW+t1KcHMoXRj9+dAJC6B xJ6dQBGJHELHzCbmopA/XxgTY3GV9/BGRM5DYL3Cc0k4ub4W9Kk9sozp7/3+0Hqgq6ej I7Ax06LP9ux+vAj9feaLr3/uFGm8GFealkyGTOZm+tNKm5a2c1nSEeTwW7fCr1gHr3B7 HUjQ== X-Gm-Message-State: AOJu0YwvcHoau0SAOW2UH1PFzPspUV3KKiPYdw6hVNcvRtFOkasrnDCh 7JOhvLx7fyj0UsIkjrAJj2Tx7orfoHaPdicOa7LnsdDcyxcl0IftT1ecsta4JU0= X-Google-Smtp-Source: AGHT+IFy8usctI3p+0+RUWGyNPa8L5NO+K4umzggsXaSh+FUW6qyBNA+8xSAUPV04bRMvZ2Wg0IwLw== X-Received: by 2002:a05:6a00:1783:b0:718:a3c1:60f6 with SMTP id d2e1a72fcca58-719261ecd95mr6610814b3a.18.1726199099803; Thu, 12 Sep 2024 20:44:59 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:32 +0900 Subject: [PATCH v16 04/13] s390x/pci: Avoid creating zpci for VFs MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-4-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::432; envelope-from=akihiko.odaki@daynix.com; helo=mail-pf1-x432.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199213836116600 VFs are automatically created by PF, and creating zpci for them will result in unexpected usage of fids. Currently QEMU does not support multifunction for s390x so we don't need zpci for VFs anyway. Signed-off-by: Akihiko Odaki --- hw/s390x/s390-pci-bus.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 3e57d5faca18..1a620f5b2a04 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -1080,6 +1080,16 @@ static void s390_pcihost_plug(HotplugHandler *hotplu= g_dev, DeviceState *dev, =20 pbdev =3D s390_pci_find_dev_by_target(s, dev->id); if (!pbdev) { + /* + * VFs are automatically created by PF, and creating zpci for = them + * will result in unexpected usage of fids. Currently QEMU doe= s not + * support multifunction for s390x so we don't need zpci for V= Fs + * anyway. + */ + if (pci_is_vf(pdev)) { + return; + } + pbdev =3D s390_pci_device_new(s, dev->id, errp); if (!pbdev) { return; @@ -1167,7 +1177,9 @@ static void s390_pcihost_unplug(HotplugHandler *hotpl= ug_dev, DeviceState *dev, int32_t devfn; =20 pbdev =3D s390_pci_find_dev_by_pci(s, PCI_DEVICE(dev)); - g_assert(pbdev); + if (!pbdev) { + return; + } =20 s390_pci_generate_plug_event(HP_EVENT_STANDBY_TO_RESERVED, pbdev->fh, pbdev->fid); @@ -1206,7 +1218,10 @@ static void s390_pcihost_unplug_request(HotplugHandl= er *hotplug_dev, * we've checked the PCI device already (to prevent endless recurs= ion). */ pbdev =3D s390_pci_find_dev_by_pci(s, PCI_DEVICE(dev)); - g_assert(pbdev); + if (!pbdev) { + return; + } + pbdev->pci_unplug_request_processed =3D true; qdev_unplug(DEVICE(pbdev), errp); } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) { --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Thu, 12 Sep 2024 20:45:05 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:33 +0900 Subject: [PATCH v16 05/13] s390x/pci: Allow plugging SR-IOV devices MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-5-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::42a; envelope-from=akihiko.odaki@daynix.com; helo=mail-pf1-x42a.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199185632116600 The guest cannot use VFs due to the lack of multifunction support but can use PFs. Signed-off-by: Akihiko Odaki --- hw/s390x/s390-pci-bus.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 1a620f5b2a04..eab9a4f97830 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -974,7 +974,14 @@ static void s390_pcihost_pre_plug(HotplugHandler *hotp= lug_dev, DeviceState *dev, if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { PCIDevice *pdev =3D PCI_DEVICE(dev); =20 - if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) { + /* + * Multifunction is not supported due to the lack of CLP. However, + * do not check for multifunction capability for SR-IOV devices be= cause + * SR-IOV devices automatically add the multifunction capability w= hether + * the user intends to use the functions other than the PF. + */ + if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION && + !pdev->exp.sriov_cap) { error_setg(errp, "multifunction not supported in s390"); return; } --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199217; cv=none; d=zohomail.com; s=zohoarc; b=mOjgDAlkZ4/chzn17ckqY4UTTkcqALqP6dCFDvLLbOJGWgTm4yD1hQ841+krVeuZnZotfIl245R4NDiPAiTo386xcnX465IhcRv2KqTkscowk7MnDqndgROpFhwQRH4lU+p8GE2rj0KqgBluY0+g0ksNqOU2gMCVWZJ0uAQsR80= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; 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Thu, 12 Sep 2024 20:45:10 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:34 +0900 Subject: [PATCH v16 06/13] s390x/pci: Check for multifunction after device realization MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-6-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::634; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199219692116600 The SR-IOV PFs set the multifunction bit during device realization so check them after that. There is no functional change because we explicitly ignore the multifunction bit for SR-IOV devices. Signed-off-by: Akihiko Odaki --- hw/s390x/s390-pci-bus.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index eab9a4f97830..e645192562ae 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -971,21 +971,7 @@ static void s390_pcihost_pre_plug(HotplugHandler *hotp= lug_dev, DeviceState *dev, "this device"); } =20 - if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { - PCIDevice *pdev =3D PCI_DEVICE(dev); - - /* - * Multifunction is not supported due to the lack of CLP. However, - * do not check for multifunction capability for SR-IOV devices be= cause - * SR-IOV devices automatically add the multifunction capability w= hether - * the user intends to use the functions other than the PF. - */ - if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION && - !pdev->exp.sriov_cap) { - error_setg(errp, "multifunction not supported in s390"); - return; - } - } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) { + if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) { S390PCIBusDevice *pbdev =3D S390_PCI_DEVICE(dev); =20 if (!s390_pci_alloc_idx(s, pbdev)) { @@ -1076,6 +1062,18 @@ static void s390_pcihost_plug(HotplugHandler *hotplu= g_dev, DeviceState *dev, } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { pdev =3D PCI_DEVICE(dev); =20 + /* + * Multifunction is not supported due to the lack of CLP. However, + * do not check for multifunction capability for SR-IOV devices be= cause + * SR-IOV devices automatically add the multifunction capability w= hether + * the user intends to use the functions other than the PF. + */ + if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION && + !pdev->exp.sriov_cap) { + error_setg(errp, "multifunction not supported in s390"); + return; + } + if (!dev->id) { /* In the case the PCI device does not define an id */ /* we generate one based on the PCI address */ --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199162; cv=none; d=zohomail.com; s=zohoarc; b=jZgXm2LETWjQXfqr6LmyYV1zduTujCU0dHfZ/L5vZPvmzGJ7OVhCGHnnFSj1fHoHuwHtvyGOtke6ubWW7OnYZTV5JnHj1aNedRgtdvVoJ+YndAQzEwtXpyibifpuaj17QRVud7x+HjjKcz0pwdJK4O9E1MJPxAk0Mnl4ES5q/IU= ARC-Message-Signature: i=1; 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Thu, 12 Sep 2024 20:45:15 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:35 +0900 Subject: [PATCH v16 07/13] pcie_sriov: Do not manually unrealize MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-7-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::634; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199164052116600 A device gets automatically unrealized when being unparented. Signed-off-by: Akihiko Odaki --- hw/pci/pcie_sriov.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index e9b23221d713..499becd5273f 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -204,11 +204,7 @@ static void unregister_vfs(PCIDevice *dev) trace_sriov_unregister_vfs(dev->name, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), num_vfs); for (i =3D 0; i < num_vfs; i++) { - Error *err =3D NULL; PCIDevice *vf =3D dev->exp.sriov_pf.vf[i]; - if (!object_property_set_bool(OBJECT(vf), "realized", false, &err)= ) { - error_reportf_err(err, "Failed to unplug: "); - } object_unparent(OBJECT(vf)); object_unref(OBJECT(vf)); } --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199162; 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bh=ANdtsuA/TGl02EfU5lGEDU+SzPTDlHokeLE9rDoObAs=; b=Oqkf0YFs5M0nDPZTuuA+CYPPx/HNSlHO20qL1HL0a0upFiQOHHBkF/i3Ur0aGjJN5p ymtBJwknJFS+fFPLv58Tt4gSBB7/UaqV8O2L2lLKS0c2DS2spJ2fkY3462WA1py6n1n7 dVmiBYdXRYwzcxsxptLgZiOqqJQfPzZJMS3qD4GfpVQTk6V1P5wGFn71tUI4gY/EMh6Z BoXr/FXECkA9aco09wLSDNLfkOhLUbMjb9yhe4vK/4DHplslOlsQ+UUHEle5euTVc7pi 6IcfCL9Sjbd0TDr772c1rCAtEPlD3KSbWHbBOrQqtwMR5XPurGCKlPN+NeklNXAwHgRS Ny/A== X-Gm-Message-State: AOJu0YzaiM7dvHFVaTtdtOIZM//uKHuTNkjF+Tp/XXnY1c8Yi6W4FqhZ Yz3A82Dmtm+newOS6zlBIcELKoLpm+Olne/nKMdqvYXODhpJevc01ovd+7v5jNA= X-Google-Smtp-Source: AGHT+IGNmYCHlSZYvYYl4y1XOkYhEmA7FyVtcsSIpZVRmrcowPQYtbPNusdvzCfu3nz8j6qsPf8nXQ== X-Received: by 2002:a17:903:1112:b0:206:9818:5431 with SMTP id d9443c01a7336-2076e5f7c1dmr72708045ad.20.1726199121171; Thu, 12 Sep 2024 20:45:21 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:36 +0900 Subject: [PATCH v16 08/13] pcie_sriov: Reuse SR-IOV VF device instances MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-8-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::62f; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x62f.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199164060116600 Disable SR-IOV VF devices by reusing code to power down PCI devices instead of removing them when the guest requests to disable VFs. This allows to realize devices and report VF realization errors at PF realization time. Signed-off-by: Akihiko Odaki --- docs/pcie_sriov.txt | 8 ++-- include/hw/pci/pci.h | 5 --- include/hw/pci/pci_device.h | 15 +++++++ include/hw/pci/pcie_sriov.h | 6 +-- hw/net/igb.c | 13 ++++-- hw/nvme/ctrl.c | 24 +++++++---- hw/pci/pci.c | 2 +- hw/pci/pcie_sriov.c | 102 +++++++++++++++++++---------------------= ---- 8 files changed, 95 insertions(+), 80 deletions(-) diff --git a/docs/pcie_sriov.txt b/docs/pcie_sriov.txt index a47aad0bfab0..ab2142807f79 100644 --- a/docs/pcie_sriov.txt +++ b/docs/pcie_sriov.txt @@ -52,9 +52,11 @@ setting up a BAR for a VF. ... =20 /* Add and initialize the SR/IOV capability */ - pcie_sriov_pf_init(d, 0x200, "your_virtual_dev", - vf_devid, initial_vfs, total_vfs, - fun_offset, stride); + if (!pcie_sriov_pf_init(d, 0x200, "your_virtual_dev", + vf_devid, initial_vfs, total_vfs, + fun_offset, stride, errp)) { + return; + } =20 /* Set up individual VF BARs (parameters as for normal BARs) */ pcie_sriov_pf_init_vf_bar( ... ) diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index fe04b4fafd04..14a869eeaa71 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -680,9 +680,4 @@ static inline void pci_irq_pulse(PCIDevice *pci_dev) MSIMessage pci_get_msi_message(PCIDevice *dev, int vector); void pci_set_enabled(PCIDevice *pci_dev, bool state); =20 -static inline void pci_set_power(PCIDevice *pci_dev, bool state) -{ - pci_set_enabled(pci_dev, state); -} - #endif diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index f38fb3111954..1ff3ce94e25b 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -212,6 +212,21 @@ static inline uint16_t pci_get_bdf(PCIDevice *dev) return PCI_BUILD_BDF(pci_bus_num(pci_get_bus(dev)), dev->devfn); } =20 +static inline void pci_set_power(PCIDevice *pci_dev, bool state) +{ + /* + * Don't change the enabled state of VFs when powering on/off the devi= ce. + * + * When powering on, VFs must not be enabled immediately but they must + * wait until the guest configures SR-IOV. + * When powering off, their corresponding PFs will be reset and disable + * VFs. + */ + if (!pci_is_vf(pci_dev)) { + pci_set_enabled(pci_dev, state); + } +} + uint16_t pci_requester_id(PCIDevice *dev); =20 /* DMA access functions */ diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h index 450cbef6c201..70649236c18a 100644 --- a/include/hw/pci/pcie_sriov.h +++ b/include/hw/pci/pcie_sriov.h @@ -18,7 +18,6 @@ typedef struct PCIESriovPF { uint16_t num_vfs; /* Number of virtual functions created */ uint8_t vf_bar_type[PCI_NUM_REGIONS]; /* Store type for each VF bar = */ - const char *vfname; /* Reference to the device type used for the VFs */ PCIDevice **vf; /* Pointer to an array of num_vfs VF devices */ } PCIESriovPF; =20 @@ -27,10 +26,11 @@ typedef struct PCIESriovVF { uint16_t vf_number; /* Logical VF number of this function */ } PCIESriovVF; =20 -void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, +bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, const char *vfname, uint16_t vf_dev_id, uint16_t init_vfs, uint16_t total_vfs, - uint16_t vf_offset, uint16_t vf_stride); + uint16_t vf_offset, uint16_t vf_stride, + Error **errp); void pcie_sriov_pf_exit(PCIDevice *dev); =20 /* Set up a VF bar in the SR/IOV bar area */ diff --git a/hw/net/igb.c b/hw/net/igb.c index b92bba402e0d..b6ca2f1b8aee 100644 --- a/hw/net/igb.c +++ b/hw/net/igb.c @@ -446,9 +446,16 @@ static void igb_pci_realize(PCIDevice *pci_dev, Error = **errp) =20 pcie_ari_init(pci_dev, 0x150); =20 - pcie_sriov_pf_init(pci_dev, IGB_CAP_SRIOV_OFFSET, TYPE_IGBVF, - IGB_82576_VF_DEV_ID, IGB_MAX_VF_FUNCTIONS, IGB_MAX_VF_FUNCTIONS, - IGB_VF_OFFSET, IGB_VF_STRIDE); + if (!pcie_sriov_pf_init(pci_dev, IGB_CAP_SRIOV_OFFSET, + TYPE_IGBVF, IGB_82576_VF_DEV_ID, + IGB_MAX_VF_FUNCTIONS, IGB_MAX_VF_FUNCTIONS, + IGB_VF_OFFSET, IGB_VF_STRIDE, + errp)) { + pcie_cap_exit(pci_dev); + igb_cleanup_msix(s); + msi_uninit(pci_dev); + return; + } =20 pcie_sriov_pf_init_vf_bar(pci_dev, IGBVF_MMIO_BAR_IDX, PCI_BASE_ADDRESS_MEM_TYPE_64 | PCI_BASE_ADDRESS_MEM_PREFETCH, diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index c6d4f61a47f9..e86ea2e7ce57 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -8271,7 +8271,8 @@ out: return pow2ceil(bar_size); } =20 -static void nvme_init_sriov(NvmeCtrl *n, PCIDevice *pci_dev, uint16_t offs= et) +static bool nvme_init_sriov(NvmeCtrl *n, PCIDevice *pci_dev, uint16_t offs= et, + Error **errp) { uint16_t vf_dev_id =3D n->params.use_intel_id ? PCI_DEVICE_ID_INTEL_NVME : PCI_DEVICE_ID_REDHAT_N= VME; @@ -8280,12 +8281,17 @@ static void nvme_init_sriov(NvmeCtrl *n, PCIDevice = *pci_dev, uint16_t offset) le16_to_cpu(cap->vifrsm), NULL, NULL); =20 - pcie_sriov_pf_init(pci_dev, offset, "nvme", vf_dev_id, - n->params.sriov_max_vfs, n->params.sriov_max_vfs, - NVME_VF_OFFSET, NVME_VF_STRIDE); + if (!pcie_sriov_pf_init(pci_dev, offset, "nvme", vf_dev_id, + n->params.sriov_max_vfs, n->params.sriov_max_v= fs, + NVME_VF_OFFSET, NVME_VF_STRIDE, + errp)) { + return false; + } =20 pcie_sriov_pf_init_vf_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64, bar_size); + + return true; } =20 static int nvme_add_pm_capability(PCIDevice *pci_dev, uint8_t offset) @@ -8410,6 +8416,12 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pc= i_dev, Error **errp) return false; } =20 + if (!pci_is_vf(pci_dev) && n->params.sriov_max_vfs && + !nvme_init_sriov(n, pci_dev, 0x120, errp)) { + msix_uninit(pci_dev, &n->bar0, &n->bar0); + return false; + } + nvme_update_msixcap_ts(pci_dev, n->conf_msix_qsize); =20 pcie_cap_deverr_init(pci_dev); @@ -8439,10 +8451,6 @@ static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pc= i_dev, Error **errp) nvme_init_pmr(n, pci_dev); } =20 - if (!pci_is_vf(pci_dev) && n->params.sriov_max_vfs) { - nvme_init_sriov(n, pci_dev, 0x120); - } - return true; } =20 diff --git a/hw/pci/pci.c b/hw/pci/pci.c index b532888e8f6c..5c0050e1786a 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -2895,7 +2895,7 @@ void pci_set_enabled(PCIDevice *d, bool state) memory_region_set_enabled(&d->bus_master_enable_region, (pci_get_word(d->config + PCI_COMMAND) & PCI_COMMAND_MASTER) && d->enabled); - if (!d->enabled) { + if (d->qdev.realized) { pci_device_reset(d); } } diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index 499becd5273f..4bffe6c97f66 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -20,15 +20,25 @@ #include "qapi/error.h" #include "trace.h" =20 -static PCIDevice *register_vf(PCIDevice *pf, int devfn, - const char *name, uint16_t vf_num); -static void unregister_vfs(PCIDevice *dev); +static void unparent_vfs(PCIDevice *dev, uint16_t total_vfs) +{ + for (uint16_t i =3D 0; i < total_vfs; i++) { + PCIDevice *vf =3D dev->exp.sriov_pf.vf[i]; + object_unparent(OBJECT(vf)); + object_unref(OBJECT(vf)); + } + g_free(dev->exp.sriov_pf.vf); + dev->exp.sriov_pf.vf =3D NULL; +} =20 -void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, +bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, const char *vfname, uint16_t vf_dev_id, uint16_t init_vfs, uint16_t total_vfs, - uint16_t vf_offset, uint16_t vf_stride) + uint16_t vf_offset, uint16_t vf_stride, + Error **errp) { + BusState *bus =3D qdev_get_parent_bus(&dev->qdev); + int32_t devfn =3D dev->devfn + vf_offset; uint8_t *cfg =3D dev->config + offset; uint8_t *wmask; =20 @@ -36,7 +46,6 @@ void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, offset, PCI_EXT_CAP_SRIOV_SIZEOF); dev->exp.sriov_cap =3D offset; dev->exp.sriov_pf.num_vfs =3D 0; - dev->exp.sriov_pf.vfname =3D g_strdup(vfname); dev->exp.sriov_pf.vf =3D NULL; =20 pci_set_word(cfg + PCI_SRIOV_VF_OFFSET, vf_offset); @@ -69,13 +78,35 @@ void pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, pci_set_word(wmask + PCI_SRIOV_SYS_PGSIZE, 0x553); =20 qdev_prop_set_bit(&dev->qdev, "multifunction", true); + + dev->exp.sriov_pf.vf =3D g_new(PCIDevice *, total_vfs); + + for (uint16_t i =3D 0; i < total_vfs; i++) { + PCIDevice *vf =3D pci_new(devfn, vfname); + vf->exp.sriov_vf.pf =3D dev; + vf->exp.sriov_vf.vf_number =3D i; + + if (!qdev_realize(&vf->qdev, bus, errp)) { + unparent_vfs(dev, i); + return false; + } + + /* set vid/did according to sr/iov spec - they are not used */ + pci_config_set_vendor_id(vf->config, 0xffff); + pci_config_set_device_id(vf->config, 0xffff); + + dev->exp.sriov_pf.vf[i] =3D vf; + devfn +=3D vf_stride; + } + + return true; } =20 void pcie_sriov_pf_exit(PCIDevice *dev) { - unregister_vfs(dev); - g_free((char *)dev->exp.sriov_pf.vfname); - dev->exp.sriov_pf.vfname =3D NULL; + uint8_t *cfg =3D dev->config + dev->exp.sriov_cap; + + unparent_vfs(dev, pci_get_word(cfg + PCI_SRIOV_TOTAL_VF)); } =20 void pcie_sriov_pf_init_vf_bar(PCIDevice *dev, int region_num, @@ -141,38 +172,11 @@ void pcie_sriov_vf_register_bar(PCIDevice *dev, int r= egion_num, } } =20 -static PCIDevice *register_vf(PCIDevice *pf, int devfn, const char *name, - uint16_t vf_num) -{ - PCIDevice *dev =3D pci_new(devfn, name); - dev->exp.sriov_vf.pf =3D pf; - dev->exp.sriov_vf.vf_number =3D vf_num; - PCIBus *bus =3D pci_get_bus(pf); - Error *local_err =3D NULL; - - qdev_realize(&dev->qdev, &bus->qbus, &local_err); - if (local_err) { - error_report_err(local_err); - return NULL; - } - - /* set vid/did according to sr/iov spec - they are not used */ - pci_config_set_vendor_id(dev->config, 0xffff); - pci_config_set_device_id(dev->config, 0xffff); - - return dev; -} - static void register_vfs(PCIDevice *dev) { uint16_t num_vfs; uint16_t i; uint16_t sriov_cap =3D dev->exp.sriov_cap; - uint16_t vf_offset =3D - pci_get_word(dev->config + sriov_cap + PCI_SRIOV_VF_OFFSET); - uint16_t vf_stride =3D - pci_get_word(dev->config + sriov_cap + PCI_SRIOV_VF_STRIDE); - int32_t devfn =3D dev->devfn + vf_offset; =20 assert(sriov_cap > 0); num_vfs =3D pci_get_word(dev->config + sriov_cap + PCI_SRIOV_NUM_VF); @@ -180,18 +184,10 @@ static void register_vfs(PCIDevice *dev) return; } =20 - dev->exp.sriov_pf.vf =3D g_new(PCIDevice *, num_vfs); - trace_sriov_register_vfs(dev->name, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), num_vfs); for (i =3D 0; i < num_vfs; i++) { - dev->exp.sriov_pf.vf[i] =3D register_vf(dev, devfn, - dev->exp.sriov_pf.vfname, i); - if (!dev->exp.sriov_pf.vf[i]) { - num_vfs =3D i; - break; - } - devfn +=3D vf_stride; + pci_set_enabled(dev->exp.sriov_pf.vf[i], true); } dev->exp.sriov_pf.num_vfs =3D num_vfs; } @@ -204,12 +200,8 @@ static void unregister_vfs(PCIDevice *dev) trace_sriov_unregister_vfs(dev->name, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), num_vfs); for (i =3D 0; i < num_vfs; i++) { - PCIDevice *vf =3D dev->exp.sriov_pf.vf[i]; - object_unparent(OBJECT(vf)); - object_unref(OBJECT(vf)); + pci_set_enabled(dev->exp.sriov_pf.vf[i], false); } - g_free(dev->exp.sriov_pf.vf); - dev->exp.sriov_pf.vf =3D NULL; dev->exp.sriov_pf.num_vfs =3D 0; } =20 @@ -231,14 +223,10 @@ void pcie_sriov_config_write(PCIDevice *dev, uint32_t= address, PCI_FUNC(dev->devfn), off, val, len); =20 if (range_covers_byte(off, len, PCI_SRIOV_CTRL)) { - if (dev->exp.sriov_pf.num_vfs) { - if (!(val & PCI_SRIOV_CTRL_VFE)) { - unregister_vfs(dev); - } + if (val & PCI_SRIOV_CTRL_VFE) { + register_vfs(dev); } else { - if (val & PCI_SRIOV_CTRL_VFE) { - register_vfs(dev); - } + unregister_vfs(dev); } } } --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199159; cv=none; d=zohomail.com; s=zohoarc; b=VvZNKxMuVzuacgZVVBSAsjqR57aqusy1+o8nwpV/rRTCODXZuD/yy62PEFOTgQ0hysc6VFVxCuNDOhcdWrxa7jSwOeo13V8SPM4PEiEjNz5GerU6oQTpUSlAjKrUOdO5A8KOLY4C68lFUTZvEQgGmeo3q6Z0JLibd55gndY1uCc= ARC-Message-Signature: i=1; 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Thu, 12 Sep 2024 20:45:26 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:37 +0900 Subject: [PATCH v16 09/13] pcie_sriov: Release VFs failed to realize MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-9-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::629; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x629.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199159793116600 Release VFs failed to realize just as we do in unregister_vfs(). Fixes: 7c0fa8dff811 ("pcie: Add support for Single Root I/O Virtualization = (SR/IOV)") Signed-off-by: Akihiko Odaki --- hw/pci/pcie_sriov.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index 4bffe6c97f66..ac8c4013bc88 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -87,6 +87,8 @@ bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, vf->exp.sriov_vf.vf_number =3D i; =20 if (!qdev_realize(&vf->qdev, bus, errp)) { + object_unparent(OBJECT(vf)); + object_unref(vf); unparent_vfs(dev, i); return false; } --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1726199243; cv=none; d=zohomail.com; s=zohoarc; b=ljJEJIFku5CqruYKPVfJBrlpl52OMgdeyKPL/Q32/uL4Wfot48d3z/5/yxg0HYZu4xHoXLm0tFXGD267zMDdcJR2fPCxLrdUH4G1EBFbCPim7WvYNe85z/alSAhH66fYMZ6u6fFyDTCzcA560UfCgqmP4rn+ooMKIKsLD7Z7cv4= ARC-Message-Signature: i=1; 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Thu, 12 Sep 2024 20:45:32 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:38 +0900 Subject: [PATCH v16 10/13] pcie_sriov: Remove num_vfs from PCIESriovPF MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-10-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::52b; envelope-from=akihiko.odaki@daynix.com; helo=mail-pg1-x52b.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199245899116600 num_vfs is not migrated so use PCI_SRIOV_CTRL_VFE and PCI_SRIOV_NUM_VF instead. Signed-off-by: Akihiko Odaki --- include/hw/pci/pcie_sriov.h | 1 - hw/pci/pcie_sriov.c | 38 +++++++++++++++++++++++++++----------- hw/pci/trace-events | 2 +- 3 files changed, 28 insertions(+), 13 deletions(-) diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h index 70649236c18a..5148c5b77dd1 100644 --- a/include/hw/pci/pcie_sriov.h +++ b/include/hw/pci/pcie_sriov.h @@ -16,7 +16,6 @@ #include "hw/pci/pci.h" =20 typedef struct PCIESriovPF { - uint16_t num_vfs; /* Number of virtual functions created */ uint8_t vf_bar_type[PCI_NUM_REGIONS]; /* Store type for each VF bar = */ PCIDevice **vf; /* Pointer to an array of num_vfs VF devices */ } PCIESriovPF; diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index ac8c4013bc88..47028e150eac 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -45,7 +45,6 @@ bool pcie_sriov_pf_init(PCIDevice *dev, uint16_t offset, pcie_add_capability(dev, PCI_EXT_CAP_ID_SRIOV, 1, offset, PCI_EXT_CAP_SRIOV_SIZEOF); dev->exp.sriov_cap =3D offset; - dev->exp.sriov_pf.num_vfs =3D 0; dev->exp.sriov_pf.vf =3D NULL; =20 pci_set_word(cfg + PCI_SRIOV_VF_OFFSET, vf_offset); @@ -182,29 +181,28 @@ static void register_vfs(PCIDevice *dev) =20 assert(sriov_cap > 0); num_vfs =3D pci_get_word(dev->config + sriov_cap + PCI_SRIOV_NUM_VF); - if (num_vfs > pci_get_word(dev->config + sriov_cap + PCI_SRIOV_TOTAL_V= F)) { - return; - } =20 trace_sriov_register_vfs(dev->name, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), num_vfs); for (i =3D 0; i < num_vfs; i++) { pci_set_enabled(dev->exp.sriov_pf.vf[i], true); } - dev->exp.sriov_pf.num_vfs =3D num_vfs; + + pci_set_word(dev->wmask + sriov_cap + PCI_SRIOV_NUM_VF, 0); } =20 static void unregister_vfs(PCIDevice *dev) { - uint16_t num_vfs =3D dev->exp.sriov_pf.num_vfs; + uint8_t *cfg =3D dev->config + dev->exp.sriov_cap; uint16_t i; =20 trace_sriov_unregister_vfs(dev->name, PCI_SLOT(dev->devfn), - PCI_FUNC(dev->devfn), num_vfs); - for (i =3D 0; i < num_vfs; i++) { + PCI_FUNC(dev->devfn)); + for (i =3D 0; i < pci_get_word(cfg + PCI_SRIOV_TOTAL_VF); i++) { pci_set_enabled(dev->exp.sriov_pf.vf[i], false); } - dev->exp.sriov_pf.num_vfs =3D 0; + + pci_set_word(dev->wmask + dev->exp.sriov_cap + PCI_SRIOV_NUM_VF, 0xfff= f); } =20 void pcie_sriov_config_write(PCIDevice *dev, uint32_t address, @@ -230,6 +228,17 @@ void pcie_sriov_config_write(PCIDevice *dev, uint32_t = address, } else { unregister_vfs(dev); } + } else if (range_covers_byte(off, len, PCI_SRIOV_NUM_VF)) { + uint8_t *cfg =3D dev->config + sriov_cap; + uint8_t *wmask =3D dev->wmask + sriov_cap; + uint16_t num_vfs =3D pci_get_word(cfg + PCI_SRIOV_NUM_VF); + uint16_t wmask_val =3D PCI_SRIOV_CTRL_MSE | PCI_SRIOV_CTRL_ARI; + + if (num_vfs <=3D pci_get_word(cfg + PCI_SRIOV_TOTAL_VF)) { + wmask_val |=3D PCI_SRIOV_CTRL_VFE; + } + + pci_set_word(wmask + PCI_SRIOV_CTRL, wmask_val); } } =20 @@ -246,6 +255,8 @@ void pcie_sriov_pf_reset(PCIDevice *dev) unregister_vfs(dev); =20 pci_set_word(dev->config + sriov_cap + PCI_SRIOV_NUM_VF, 0); + pci_set_word(dev->wmask + sriov_cap + PCI_SRIOV_CTRL, + PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE | PCI_SRIOV_CTRL_= ARI); =20 /* * Default is to use 4K pages, software can modify it @@ -292,7 +303,7 @@ PCIDevice *pcie_sriov_get_pf(PCIDevice *dev) PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, int n) { assert(!pci_is_vf(dev)); - if (n < dev->exp.sriov_pf.num_vfs) { + if (n < pcie_sriov_num_vfs(dev)) { return dev->exp.sriov_pf.vf[n]; } return NULL; @@ -300,5 +311,10 @@ PCIDevice *pcie_sriov_get_vf_at_index(PCIDevice *dev, = int n) =20 uint16_t pcie_sriov_num_vfs(PCIDevice *dev) { - return dev->exp.sriov_pf.num_vfs; + uint16_t sriov_cap =3D dev->exp.sriov_cap; + uint8_t *cfg =3D dev->config + sriov_cap; + + return sriov_cap && + (pci_get_word(cfg + PCI_SRIOV_CTRL) & PCI_SRIOV_CTRL_VFE) ? + pci_get_word(cfg + PCI_SRIOV_NUM_VF) : 0; } diff --git a/hw/pci/trace-events b/hw/pci/trace-events index 19643aa8c6b0..e98f575a9d19 100644 --- a/hw/pci/trace-events +++ b/hw/pci/trace-events @@ -14,7 +14,7 @@ msix_write_config(char *name, bool enabled, bool masked) = "dev %s enabled %d mask =20 # hw/pci/pcie_sriov.c sriov_register_vfs(const char *name, int slot, int function, int num_vfs) = "%s %02x:%x: creating %d vf devs" -sriov_unregister_vfs(const char *name, int slot, int function, int num_vfs= ) "%s %02x:%x: Unregistering %d vf devs" +sriov_unregister_vfs(const char *name, int slot, int function) "%s %02x:%x= : Unregistering vf devs" sriov_config_write(const char *name, int slot, int fun, uint32_t offset, u= int32_t val, uint32_t len) "%s %02x:%x: sriov offset 0x%x val 0x%x len %d" =20 # pcie.c --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Thu, 12 Sep 2024 20:45:38 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:39 +0900 Subject: [PATCH v16 11/13] pcie_sriov: Register VFs after migration MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-11-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::429; envelope-from=akihiko.odaki@daynix.com; helo=mail-pf1-x429.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199165553116600 pcie_sriov doesn't have code to restore its state after migration, but igb, which uses pcie_sriov, naively claimed its migration capability. Add code to register VFs after migration and fix igb migration. Fixes: 3a977deebe6b ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki --- include/hw/pci/pcie_sriov.h | 2 ++ hw/pci/pci.c | 7 +++++++ hw/pci/pcie_sriov.c | 7 +++++++ 3 files changed, 16 insertions(+) diff --git a/include/hw/pci/pcie_sriov.h b/include/hw/pci/pcie_sriov.h index 5148c5b77dd1..c5d2d318d330 100644 --- a/include/hw/pci/pcie_sriov.h +++ b/include/hw/pci/pcie_sriov.h @@ -57,6 +57,8 @@ void pcie_sriov_pf_add_sup_pgsize(PCIDevice *dev, uint16_= t opt_sup_pgsize); void pcie_sriov_config_write(PCIDevice *dev, uint32_t address, uint32_t val, int len); =20 +void pcie_sriov_pf_post_load(PCIDevice *dev); + /* Reset SR/IOV */ void pcie_sriov_pf_reset(PCIDevice *dev); =20 diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 5c0050e1786a..4c7be5295110 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -733,10 +733,17 @@ static bool migrate_is_not_pcie(void *opaque, int ver= sion_id) return !pci_is_express((PCIDevice *)opaque); } =20 +static int pci_post_load(void *opaque, int version_id) +{ + pcie_sriov_pf_post_load(opaque); + return 0; +} + const VMStateDescription vmstate_pci_device =3D { .name =3D "PCIDevice", .version_id =3D 2, .minimum_version_id =3D 1, + .post_load =3D pci_post_load, .fields =3D (const VMStateField[]) { VMSTATE_INT32_POSITIVE_LE(version_id, PCIDevice), VMSTATE_BUFFER_UNSAFE_INFO_TEST(config, PCIDevice, diff --git a/hw/pci/pcie_sriov.c b/hw/pci/pcie_sriov.c index 47028e150eac..a1cb1214af27 100644 --- a/hw/pci/pcie_sriov.c +++ b/hw/pci/pcie_sriov.c @@ -242,6 +242,13 @@ void pcie_sriov_config_write(PCIDevice *dev, uint32_t = address, } } =20 +void pcie_sriov_pf_post_load(PCIDevice *dev) +{ + if (dev->exp.sriov_cap) { + register_vfs(dev); + } +} + =20 /* Reset SR/IOV */ void pcie_sriov_pf_reset(PCIDevice *dev) --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; 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bh=NowZm/EG31u8eyDPWUoV8f+k0nmNu308nWwlnQDkLrY=; b=mcpy11oybIROKLy/kyJXyD+4V/xFNa0qAiKpXTvD8t4P8VC3zy39Yr+YZPIDl9Y3lS bGdbO44iN/8/kJNRqk1CGmsPZV6ca7r/KImmShTbTYSuz9Nzc+6ndJVsgj+wLfM6T6Jk KllbVCiHptDrplR0zMSv7D/tr5Y3U+pV1HQ2690+dHmmvAvTw6+3iG1oEN4MU15N09VA OUuzFKraT3Zl+AzC8dPIaNXpQIQ54dxVY3gIA2sbF2qd91jbNFSPa1Ai8CEp6vK2s7Vy Xdmbu0LpQtff2+YrqvQ/FMMnNihM4kcoC+FnxXj9KLpLwDCpgOkWAu/oyGty5i1VrWuP PPzw== X-Gm-Message-State: AOJu0YyOsTMbdUNAh8uNaBx3X1+iVDP7y4AtLFAafWdP+L3AnYtPhziT mYvVefGdjJinVClzQP0PVcgIbZ2VUOqDLf/mm5njtojT4e1y9UuQE6rOCi3nKyHgtIKgHraAfVl niug= X-Google-Smtp-Source: AGHT+IF4cqymPAj9UGIKFAW6jLvPO15hOJ9Vmo1TlJPcBccMmj7tR9ZoIceg4Qeagc4HqR2IWHb/EQ== X-Received: by 2002:a05:6a21:1798:b0:1cf:51a1:8e89 with SMTP id adf61e73a8af0-1d112eaf56amr2201382637.47.1726199143658; Thu, 12 Sep 2024 20:45:43 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:40 +0900 Subject: [PATCH v16 12/13] hw/pci: Use -1 as the default value for rombar MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-12-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::535; envelope-from=akihiko.odaki@daynix.com; helo=mail-pg1-x535.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199294003116600 vfio_pci_size_rom() distinguishes whether rombar is explicitly set to 1 by checking dev->opts, bypassing the QOM property infrastructure. Use -1 as the default value for rombar to tell if the user explicitly set it to 1. The property is also converted from unsigned to signed. -1 is signed so it is safe to give it a new meaning. The values in [2 ^ 31, 2 ^ 32) become invalid, but nobody should have typed these values by chance. Suggested-by: Markus Armbruster Signed-off-by: Akihiko Odaki Reviewed-by: Markus Armbruster --- include/hw/pci/pci_device.h | 2 +- hw/pci/pci.c | 2 +- hw/vfio/pci.c | 5 ++--- 3 files changed, 4 insertions(+), 5 deletions(-) diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h index 1ff3ce94e25b..8fa845beee5e 100644 --- a/include/hw/pci/pci_device.h +++ b/include/hw/pci/pci_device.h @@ -148,7 +148,7 @@ struct PCIDevice { uint32_t romsize; bool has_rom; MemoryRegion rom; - uint32_t rom_bar; + int32_t rom_bar; =20 /* INTx routing notifier */ PCIINTxRoutingNotifier intx_routing_notifier; diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 4c7be5295110..d2eaf0c51dde 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -71,7 +71,7 @@ static Property pci_props[] =3D { DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1), DEFINE_PROP_STRING("romfile", PCIDevice, romfile), DEFINE_PROP_UINT32("romsize", PCIDevice, romsize, UINT32_MAX), - DEFINE_PROP_UINT32("rombar", PCIDevice, rom_bar, 1), + DEFINE_PROP_INT32("rombar", PCIDevice, rom_bar, -1), DEFINE_PROP_BIT("multifunction", PCIDevice, cap_present, QEMU_PCI_CAP_MULTIFUNCTION_BITNR, false), DEFINE_PROP_BIT("x-pcie-lnksta-dllla", PCIDevice, cap_present, diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 2407720c3530..dc53837eac73 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -1012,7 +1012,6 @@ static void vfio_pci_size_rom(VFIOPCIDevice *vdev) { uint32_t orig, size =3D cpu_to_le32((uint32_t)PCI_ROM_ADDRESS_MASK); off_t offset =3D vdev->config_offset + PCI_ROM_ADDRESS; - DeviceState *dev =3D DEVICE(vdev); char *name; int fd =3D vdev->vbasedev.fd; =20 @@ -1046,12 +1045,12 @@ static void vfio_pci_size_rom(VFIOPCIDevice *vdev) } =20 if (vfio_opt_rom_in_denylist(vdev)) { - if (dev->opts && qdict_haskey(dev->opts, "rombar")) { + if (vdev->pdev.rom_bar > 0) { warn_report("Device at %s is known to cause system instability" " issues during option rom execution", vdev->vbasedev.name); error_printf("Proceeding anyway since user specified" - " non zero value for rombar\n"); + " positive value for rombar\n"); } else { warn_report("Rom loading for device at %s has been disabled" " due to system instability issues", --=20 2.46.0 From nobody Sun Nov 24 03:07:23 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; 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bh=fEpDPUaFL8zPvYOx/0hsO+TqHl11ExTE7h8t0M0WvV0=; b=wmcf6OmDULvClT3J0qIHmiMiv9UH/6fZaNUz8BnHcbhrf2xzoK/32mgr4cV9l6ehPa Rq3UlgO/8QYuJwVMvFEb0yRkl0+eP4nKXxt7DU8lmoFykoFIpwl9ikAxgyWoayQh5uqa rn5q2BYnEqEnUxoxDPKkQbsDSz8XLJPPR25JX3IdmwVB2f75BskNpGTFmdbuVKBz6hcB VS6tHYeicg66Zg3kOKp+e6q1s071Q6LWcaeGtcU3MyO7WiLTqil3Rkauc+Ss8BtlJDTw oLOAQ5ldR90ts8m5uwZDZMAKXl/+3KKImqTZa6B7tmrGqn7p5wEMY4FGz6EKXawoF3Ur AWbQ== X-Gm-Message-State: AOJu0YxmmnULJzCtANfmT4+EUCTuWiT22jIj2migLZ4e8ShadwBZTiWD CAYl55868/IBY9mC2gRkGC2lblv+dMaGUpvSklyEwStois065DwSNjjoGnD/QNg= X-Google-Smtp-Source: AGHT+IH6cv5ySpOeZrGoMc1rthujaqfIP9yc75kRGlGZsMln8GOcu8qwRvK+hCqd7sMyQAdzgMIKXw== X-Received: by 2002:a17:902:ecd2:b0:205:3e68:7359 with SMTP id d9443c01a7336-2076e491acdmr62386475ad.53.1726199149406; Thu, 12 Sep 2024 20:45:49 -0700 (PDT) From: Akihiko Odaki Date: Fri, 13 Sep 2024 12:44:41 +0900 Subject: [PATCH v16 13/13] hw/qdev: Remove opts member MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-reuse-v16-13-d016b4b4f616@daynix.com> References: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> In-Reply-To: <20240913-reuse-v16-0-d016b4b4f616@daynix.com> To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" , Marcel Apfelbaum , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Paolo Bonzini , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Sriram Yagnaraman , Jason Wang , Keith Busch , Klaus Jensen , Markus Armbruster , Matthew Rosato , Eric Farman Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::62d; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x62d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @daynix-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1726199205635116600 It is no longer used. Signed-off-by: Akihiko Odaki Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Markus Armbruster --- include/hw/qdev-core.h | 4 ---- hw/core/qdev.c | 1 - system/qdev-monitor.c | 12 +++++++----- 3 files changed, 7 insertions(+), 10 deletions(-) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 77bfcbdf732a..a3757e6769f8 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -237,10 +237,6 @@ struct DeviceState { * @pending_deleted_expires_ms: optional timeout for deletion events */ int64_t pending_deleted_expires_ms; - /** - * @opts: QDict of options for the device - */ - QDict *opts; /** * @hotplugged: was device added after PHASE_MACHINE_READY? */ diff --git a/hw/core/qdev.c b/hw/core/qdev.c index f3a996f57dee..2fc84699d432 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -706,7 +706,6 @@ static void device_finalize(Object *obj) dev->canonical_path =3D NULL; } =20 - qobject_unref(dev->opts); g_free(dev->id); } =20 diff --git a/system/qdev-monitor.c b/system/qdev-monitor.c index 6af6ef7d667f..3551989d5153 100644 --- a/system/qdev-monitor.c +++ b/system/qdev-monitor.c @@ -624,6 +624,7 @@ DeviceState *qdev_device_add_from_qdict(const QDict *op= ts, char *id; DeviceState *dev =3D NULL; BusState *bus =3D NULL; + QDict *properties; =20 driver =3D qdict_get_try_str(opts, "driver"); if (!driver) { @@ -705,13 +706,14 @@ DeviceState *qdev_device_add_from_qdict(const QDict *= opts, } =20 /* set properties */ - dev->opts =3D qdict_clone_shallow(opts); - qdict_del(dev->opts, "driver"); - qdict_del(dev->opts, "bus"); - qdict_del(dev->opts, "id"); + properties =3D qdict_clone_shallow(opts); + qdict_del(properties, "driver"); + qdict_del(properties, "bus"); + qdict_del(properties, "id"); =20 - object_set_properties_from_keyval(&dev->parent_obj, dev->opts, from_js= on, + object_set_properties_from_keyval(&dev->parent_obj, properties, from_j= son, errp); + qobject_unref(properties); if (*errp) { goto err_del_dev; } --=20 2.46.0