From f3b3766899fc0a79a175a5d29d0ff427327cd34a Mon Sep 17 00:00:00 2001 From: Gonglei Date: Tue, 25 Nov 2014 12:38:19 +0800 Subject: fw_cfg: fix boot order bug when dynamically modified via QOM When we dynamically modify boot order, the length of boot order will be changed, but we don't update s->files->f[i].size with new length. This casuse seabios read a wrong vale of qemu cfg file about bootorder. Cc: Gerd Hoffmann Cc: Paolo Bonzini Signed-off-by: Gonglei Signed-off-by: Paolo Bonzini --- hw/nvram/fw_cfg.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'hw/nvram/fw_cfg.c') diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index e7ed27e242..a7122ee56b 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -523,6 +523,7 @@ void *fw_cfg_modify_file(FWCfgState *s, const char *filename, void *data, size_t len) { int i, index; + void *ptr = NULL; assert(s->files); @@ -531,8 +532,10 @@ void *fw_cfg_modify_file(FWCfgState *s, const char *filename, for (i = 0; i < index; i++) { if (strcmp(filename, s->files->f[i].name) == 0) { - return fw_cfg_modify_bytes_read(s, FW_CFG_FILE_FIRST + i, - data, len); + ptr = fw_cfg_modify_bytes_read(s, FW_CFG_FILE_FIRST + i, + data, len); + s->files->f[i].size = cpu_to_be32(len); + return ptr; } } /* add new one */ -- cgit v1.2.3-55-g7522