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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-02-28 20:33:45 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-02-28 20:33:45 +0000 |
| commit | d401a487416926594f5176cb8acf75eed4bea0f0 (patch) | |
| tree | e7afb01ba89de5a3e84bafcda85181a31a012c57 /OvmfPkg/Include | |
| parent | e482753b334b03f297a9655caf775bd8469ab91c (diff) | |
| download | edk2-d401a487416926594f5176cb8acf75eed4bea0f0.tar.gz | |
Ovmf/Xen: add Xen PV console SerialPortLib driver
This implements a SerialPortLib instance that wires up to the
PV console ring used by domU guests. Also imports the required
upstream Xen io/console.h header.
Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16976 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Include')
| -rw-r--r-- | OvmfPkg/Include/IndustryStandard/Xen/io/console.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/OvmfPkg/Include/IndustryStandard/Xen/io/console.h b/OvmfPkg/Include/IndustryStandard/Xen/io/console.h new file mode 100644 index 000000000..f1caa9765 --- /dev/null +++ b/OvmfPkg/Include/IndustryStandard/Xen/io/console.h @@ -0,0 +1,51 @@ +/******************************************************************************
+ * console.h
+ *
+ * Console I/O interface for Xen guest OSes.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2005, Keir Fraser
+ */
+
+#ifndef __XEN_PUBLIC_IO_CONSOLE_H__
+#define __XEN_PUBLIC_IO_CONSOLE_H__
+
+typedef UINT32 XENCONS_RING_IDX;
+
+#define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
+
+struct xencons_interface {
+ char in[1024];
+ char out[2048];
+ XENCONS_RING_IDX in_cons, in_prod;
+ XENCONS_RING_IDX out_cons, out_prod;
+};
+
+#endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
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