[3/7] kvmtool: add (fake) ram detection

Commit Message

Gerd Hoffmann July 7, 2015, 6:38 a.m. UTC

FIXME.  No idea how to figure how much ram we have.

For now claim we have 128 MB.  That is the minimum kvmtool uses
if you don't specify something via -m (if I read the code correctly).
So things should at least work, even though we might leave memory
unused.

Signed-off-by: Gerd Hoffmann <[e-mail]>
---
 src/fw/paravirt.c | 11 +++++++++++
 src/fw/paravirt.h |  2 ++
 src/post.c        |  1 +
 3 files changed, 14 insertions(+)

Patch

diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c
index db22ae8..efd9848 100644
--- a/src/fw/paravirt.c
+++ b/src/fw/paravirt.c
@@ -446,3 +446,14 @@  void qemu_cfg_init(void)
         dprintf(1, "Moving pm_base to 0x%x\n", acpi_pm_base);
     }
 }
+
+void
+kvmtool_preinit(void)
+{
+    if (!CONFIG_KVMTOOL)
+        return;
+
+    /* FIXME: claim we have 128 MB */
+    RamSize = 128 * 1024 * 1024;
+    add_e820(0, RamSize, E820_RAM);
+}
diff --git a/src/fw/paravirt.h b/src/fw/paravirt.h
index 95ffb92..7caca4d 100644
--- a/src/fw/paravirt.h
+++ b/src/fw/paravirt.h
@@ -34,4 +34,6 @@  void qemu_preinit(void);
 void qemu_platform_setup(void);
 void qemu_cfg_init(void);
 
+void kvmtool_preinit(void);
+
 #endif
diff --git a/src/post.c b/src/post.c
index 65a3c9c..36cc5d7 100644
--- a/src/post.c
+++ b/src/post.c
@@ -314,6 +314,7 @@  dopost(void)
 {
     // Detect ram and setup internal malloc.
     qemu_preinit();
+    kvmtool_preinit();
     coreboot_preinit();
     malloc_preinit();