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Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , CLEMENT MATHIEU--DRIF , Marcel Apfelbaum Subject: [PULL 14/51] pcie: Add a function to check if pasid privileged mode is enabled Message-ID: <7b775ce1e595487808620877e77d4158ada2b0ce.1770231744.git.mst@redhat.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent 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: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: qemu development 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 @redhat.com) X-ZM-MESSAGEID: 1770231859122158500 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: CLEMENT MATHIEU--DRIF Signed-off-by: Clement Mathieu--Drif Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Message-Id: <20251029105137.1097933-4-clement.mathieu--drif@eviden.com> --- hw/pci/pcie.c | 21 ++++++++++++++++----- include/hw/pci/pcie.h | 1 + 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index c481c16c0f..50fc4aa8eb 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -1340,6 +1340,16 @@ void pcie_pri_init(PCIDevice *dev, uint16_t offset, = uint32_t outstanding_pr_cap, dev->exp.pri_cap =3D offset; } =20 +static inline bool pcie_pasid_check_ctrl_bit_enabled(const PCIDevice *dev, + uint16_t mask) +{ + if (!pci_is_express(dev) || !dev->exp.pasid_cap) { + return false; + } + return (pci_get_word(dev->config + dev->exp.pasid_cap + PCI_PASID_CTRL= ) & + mask) !=3D 0; +} + uint32_t pcie_pri_get_req_alloc(const PCIDevice *dev) { if (!pcie_pri_enabled(dev)) { @@ -1359,11 +1369,12 @@ bool pcie_pri_enabled(const PCIDevice *dev) =20 bool pcie_pasid_enabled(const PCIDevice *dev) { - if (!pci_is_express(dev) || !dev->exp.pasid_cap) { - return false; - } - return (pci_get_word(dev->config + dev->exp.pasid_cap + PCI_PASID_CTRL= ) & - PCI_PASID_CTRL_ENABLE) !=3D 0; + return pcie_pasid_check_ctrl_bit_enabled(dev, PCI_PASID_CTRL_ENABLE); +} + +bool pcie_pasid_priv_enabled(PCIDevice *dev) +{ + return pcie_pasid_check_ctrl_bit_enabled(dev, PCI_PASID_CTRL_PRIV); } =20 bool pcie_ats_enabled(const PCIDevice *dev) diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index fc02aeb169..d4e065db82 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -165,5 +165,6 @@ void pcie_pri_init(PCIDevice *dev, uint16_t offset, uin= t32_t outstanding_pr_cap, uint32_t pcie_pri_get_req_alloc(const PCIDevice *dev); bool pcie_pri_enabled(const PCIDevice *dev); bool pcie_pasid_enabled(const PCIDevice *dev); +bool pcie_pasid_priv_enabled(PCIDevice *dev); bool pcie_ats_enabled(const PCIDevice *dev); #endif /* QEMU_PCIE_H */ --=20 MST