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authorLaszlo Ersek <lersek@redhat.com>2016-03-12 20:37:42 +0100
committerLaszlo Ersek <lersek@redhat.com>2016-04-06 19:21:50 +0200
commitd0ece0d85050022f96f31291e2f0033ebcdb3c6f (patch)
treeac9ef3463ee167bfbffc34034fcdec865c264f3a /OptionRomPkg
parentacb81416cceda0da2f1d89137d70d167f2a83ca4 (diff)
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OvmfPkg: VirtioLib: add Virtio10WriteFeatures() function
In VirtIo 1.0, a device can reject a self-inconsistent feature bitmap through the new VSTAT_FEATURES_OK status bit. (For example if the driver requests a higher level feature but clears a prerequisite feature.) This function is a small wrapper around VIRTIO_DEVICE_PROTOCOL.SetGuestFeatures() that also verifies if the VirtIo 1.0 device accepts the feature bitmap. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
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