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* OvmfPkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney2019-04-091-7/+1
| | | | | | | | | | | | | | | | | | | | https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg/VirtioScsiDxe: map VRING using VirtioRingMap()Brijesh Singh2017-08-311-0/+1
| | | | | | | | | | | | | | | | When device is behind the IOMMU then driver need to pass the device address when programing the bus master. The patch uses VirtioRingMap() to map the VRING system physical address to device address. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg: Fix typing errors in header filesThomas Huth2016-09-131-1/+1
| | | | | | | | | Correct some typos in the header files of the OvmfPkg (which have been discovered with the codespell utility). Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
* OvmfPkg: VirtioScsiDxe: reset device at ExitBootServices()Laszlo Ersek2015-10-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | (1) VirtioLib allocates the virtio ring in EfiBootServicesData memory. (This is intentional.) Code that executes after ExitBootServices() is permitted to reuse such memory. (2) The hypervisor is allowed to look at, and act upon, a live virtio ring at any time, even without explicit virtio kicks from the guest. Should boot loader code or kernel code, running between ExitBootServices() and the kernel's own virtio drivers resetting the device, overwrite the pages that used to contain the virtio ring before ExitBootServices(), QEMU could theoretically interpret that unrelated data as garbage ring contents, and abort the guest. Although we have seen no such reports, better be prudent and reset the device in an ExitBootServices() event handler. Among other things, this causes QEMU to forget about the device's virtio ring. Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18623 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: Make the VirtIo devices use the new VIRTIO_DEVICE_PROTOCOLOlivier Martin2013-12-111-13/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change replaces the accesses to the PCI bus from the Block, Scsi and Net drivers by the use of the new VIRTIO_DEVICE_PROTOCOL protocol that abstracts the transport layer. It means these drivers can be used on PCI and MMIO transport layer. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> v5: - VirtioFlush(): update comment block in VirtioLib.[hc]; error code is propagated from VirtIo->SetQueueNotify(). - VirtioBlkInit(): jump to Failed label if SetPageSize() fails - VirtioBlkInit(): fixup comment, and add error handling, near SetQueueNum() call - VirtioBlkDriverBindingStart(): remove redundant (always false) check for a subsystem device ID different from VIRTIO_SUBSYSTEM_BLOCK_DEVICE; VirtioBlkDriverBindingSupported() handles it already - VirtioNetGetFeatures(): update stale comment block - VirtioNetGetFeatures(): retrieve MAC address byte for byte (open-coded loop) - VirtioNetDriverBindingStart(): remove redundant (always false) check for a subsystem device ID different from VIRTIO_SUBSYSTEM_NETWORK_CARD; VirtioNetDriverBindingSupported() handles it already - VirtioNetInitRing(): call SetQueueNum() and SetQueueAlign() for proper MMIO operation - VirtioNetInitialize(): fix destination error label for when SetPageSize() fails - VirtioScsi.c: fix comment block of VIRTIO_CFG_WRITE()/VIRTIO_CFG_READ() - VirtioScsiInit(): fix destination error label for when SetPageSize() fails - VirtioScsiInit(): call SetQueueNum() and SetQueueAlign() for proper MMIO operation Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14966 6f19259b-4bc3-4df7-8a09-765794883524
* OvmfPkg: introduce virtio-scsi driverjljusten2012-10-181-0/+209
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> [jordan.l.justen@intel.com: fix build for VS2012] Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13867 6f19259b-4bc3-4df7-8a09-765794883524
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