small virtio serial update #11841
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small virtio serial update #11841
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mikebeaton
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Dec 4, 2025
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Please describe these changes in terms of the 'why' - describing /what/ a 2 line patch does is kind of pointless, anybody can see that for themselves. |
Left over from development. The messages do not serve much value and spam the logs. Drop them. Signed-off-by: Gerd Hoffmann <[email protected]>
The function does not return any flags. Make that explicit instead of leaving the return value unmodified, so we do not depend on the caller initializing it. Signed-off-by: Gerd Hoffmann <[email protected]>
Next patch needs this function. No functional change. Signed-off-by: Gerd Hoffmann <[email protected]>
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Pull Request Formatting IssuesAddress these issues and the validation will automatically re-run when you update your pull request. |
Check if there is data available for read, set the EFI_SERIAL_INPUT_BUFFER_EMPTY flag accordingly. With proper status returned VirtioSerialIoRead() will only be called if there is actual data to read, so we must call VirtioSerialIoWriteFlush() to make sure pending writes get flushed to the host properly. Signed-off-by: Gerd Hoffmann <[email protected]>
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Description
OvmfPkg/VirtioSerialDxe: drop Get/SetControl logging
OvmfPkg/VirtioSerialDxe: explitly clear return value in GetControl
OvmfPkg/VirtioSerialDxe: factor out VirtioSerialIoWriteFlush
OvmfPkg/VirtioSerialDxe: set EFI_SERIAL_INPUT_BUFFER_EMPTY
Breaking change?
Impacts security?
Includes tests?
How This Was Tested
manual testing in qemu
Integration Instructions
N/A