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authorMarkus Armbruster <armbru@redhat.com>2013-06-26 15:52:15 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2013-07-18 13:27:46 -0500
commit7a10016509f740ef33b7875630d6c3549d57c6e8 (patch)
treef915a3a59ffa8854a86e40e4073c75b8923a3d13
parentdb2b5500c9780730b8ad09fca4a1d2de365dcbf0 (diff)
libqos: Add support for memory-mapped fw_cfg
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-id: 1372254743-15808-5-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--tests/libqos/fw_cfg.c29
-rw-r--r--tests/libqos/fw_cfg.h3
2 files changed, 32 insertions, 0 deletions
diff --git a/tests/libqos/fw_cfg.c b/tests/libqos/fw_cfg.c
index e386ff7ba7..49d16831ee 100644
--- a/tests/libqos/fw_cfg.c
+++ b/tests/libqos/fw_cfg.c
@@ -2,15 +2,19 @@
* libqos fw_cfg support
*
* Copyright IBM, Corp. 2012-2013
+ * Copyright (C) 2013 Red Hat Inc.
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
+ * Markus Armbruster <armbru@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
+#include <glib.h>
#include "libqos/fw_cfg.h"
+#include "libqtest.h"
#include "qemu/bswap.h"
void qfw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
@@ -50,3 +54,28 @@ uint64_t qfw_cfg_get_u64(QFWCFG *fw_cfg, uint16_t key)
return le64_to_cpu(value);
}
+static void mm_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
+{
+ writew(fw_cfg->base, key);
+}
+
+static void mm_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
+{
+ uint8_t *ptr = data;
+ int i;
+
+ for (i = 0; i < len; i++) {
+ ptr[i] = readb(fw_cfg->base + 2);
+ }
+}
+
+QFWCFG *mm_fw_cfg_init(uint64_t base)
+{
+ QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
+
+ fw_cfg->base = base;
+ fw_cfg->select = mm_fw_cfg_select;
+ fw_cfg->read = mm_fw_cfg_read;
+
+ return fw_cfg;
+}
diff --git a/tests/libqos/fw_cfg.h b/tests/libqos/fw_cfg.h
index 44fc42ba11..19bb0530e7 100644
--- a/tests/libqos/fw_cfg.h
+++ b/tests/libqos/fw_cfg.h
@@ -20,6 +20,7 @@ typedef struct QFWCFG QFWCFG;
struct QFWCFG
{
+ uint64_t base;
void (*select)(QFWCFG *fw_cfg, uint16_t key);
void (*read)(QFWCFG *fw_cfg, void *data, size_t len);
};
@@ -31,4 +32,6 @@ uint16_t qfw_cfg_get_u16(QFWCFG *fw_cfg, uint16_t key);
uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key);
uint64_t qfw_cfg_get_u64(QFWCFG *fw_cfg, uint16_t key);
+QFWCFG *mm_fw_cfg_init(uint64_t base);
+
#endif