[Qemu-devel] [PATCH 2/2] reset state for load_linux

[Glauber Costa <glommer@redhat.com>]

The linux loader is just an option rom like any other, just with
some special requirements. Right now, our option rom resetting
mechanism is not being applied to it. As a result, users using
-kernel will not be able to successfully reboot their machines

This patch fixes it by saving all the data we generated in
the load_linux() function, to be used later by the option rom
resetting mechanism.

Signed-off-by: Glauber Costa <glommer@redhat.com>
---
 hw/pc.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/hw/pc.c b/hw/pc.c
index 0025474..6b46427 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -579,6 +579,7 @@ static void generate_bootsect(target_phys_addr_t option_rom,
     rom[sizeof(rom) - 1] = -sum;
 
     cpu_physical_memory_write_rom(option_rom, rom, sizeof(rom));
+    option_rom_setup_reset(option_rom, sizeof (rom));
 }
 
 static long get_file_size(FILE *f)
@@ -746,6 +747,12 @@ static void load_linux(target_phys_addr_t option_rom,
     memset(gpr, 0, sizeof gpr);
     gpr[4] = cmdline_addr-real_addr-16;	/* SP (-16 is paranoia) */
 
+    option_rom_setup_reset(real_addr, setup_size);
+    option_rom_setup_reset(prot_addr, kernel_size);
+    option_rom_setup_reset(cmdline_addr, cmdline_size);
+    if (initrd_filename)
+        option_rom_setup_reset(initrd_addr, initrd_size);
+
     generate_bootsect(option_rom, gpr, seg, 0);
 }
 
-- 
1.6.2.2