Previously, if the size of initrd >=2G, qemu exits with error:
root@haswell-OptiPlex-9020:/home/lizj#
/home/lizhijian/lkp/qemu-colo/x86_64-softmmu/qemu-system-x86_64 -kernel
./vmlinuz-4.16.0-rc4 -initrd large.cgz -nographic
qemu: error reading initrd large.cgz: No such file or directory
root@haswell-OptiPlex-9020:/home/lizj# du -sh large.cgz
2.5G large.cgz
this patch changes the caller side that use this function to calculate
size of initrd file as well.
Signed-off-by: Li Zhijian <lizhij...@cn.fujitsu.com>
---
v3: hide version changelog
v2: update error message and int64_t printing format
hw/alpha/dp264.c | 3 ++-
hw/core/loader.c | 5 +++--
hw/hppa/machine.c | 2 +-
hw/i386/pc.c | 7 ++++++-
hw/mips/mips_fulong2e.c | 4 ++--
hw/mips/mips_malta.c | 4 ++--
hw/mips/mips_mipssim.c | 3 +--
hw/mips/mips_r4k.c | 4 ++--
hw/moxie/moxiesim.c | 2 +-
include/hw/loader.h | 2 +-
10 files changed, 21 insertions(+), 15 deletions(-)
diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
index 80b987f..dd62f2a 100644
--- a/hw/alpha/dp264.c
+++ b/hw/alpha/dp264.c
@@ -150,7 +150,8 @@ static void clipper_init(MachineState *machine)
}
if (initrd_filename) {
- long initrd_base, initrd_size;
+ long initrd_base;
+ int64_t initrd_size;
initrd_size = get_image_size(initrd_filename);
if (initrd_size < 0) {
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 390987a..aa0b3fc 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -61,9 +61,10 @@
static int roms_loaded;
/* return the size or -1 if error */
-int get_image_size(const char *filename)
+int64_t get_image_size(const char *filename)
{
- int fd, size;
+ int fd;
+ int64_t size;
fd = open(filename, O_RDONLY | O_BINARY);
if (fd < 0)
return -1;
diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
index cf7c61c..3277626 100644
--- a/hw/hppa/machine.c
+++ b/hw/hppa/machine.c
@@ -189,7 +189,7 @@ static void machine_hppa_init(MachineState *machine)
if (initrd_filename) {
ram_addr_t initrd_base;
- long initrd_size;
+ int64_t initrd_size;
initrd_size = get_image_size(initrd_filename);
if (initrd_size < 0) {
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 0314845..cd5029c 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -838,7 +838,8 @@ static void load_linux(PCMachineState *pcms,
FWCfgState *fw_cfg)
{
uint16_t protocol;
- int setup_size, kernel_size, initrd_size = 0, cmdline_size;
+ int setup_size, kernel_size, cmdline_size;
+ int64_t initrd_size = 0;
int dtb_size, setup_data_offset;
uint32_t initrd_max;
uint8_t header[8192], *setup, *kernel, *initrd_data;
@@ -974,6 +975,10 @@ static void load_linux(PCMachineState *pcms,
fprintf(stderr, "qemu: error reading initrd %s: %s\n",
initrd_filename, strerror(errno));
exit(1);
+ } else if (initrd_size >= initrd_max) {
+ fprintf(stderr, "qemu: initrd is too large, cannot support."
+ "(max: %"PRIu32", need %"PRId64")\n", initrd_max,
initrd_size);
+ exit(1);
}
initrd_addr = (initrd_max-initrd_size) & ~4095;
diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
index c1694c8..ca88d28 100644
--- a/hw/mips/mips_fulong2e.c
+++ b/hw/mips/mips_fulong2e.c
@@ -104,9 +104,9 @@ static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t* prom_buf,
int index,
static int64_t load_kernel (CPUMIPSState *env)
{
- int64_t kernel_entry, kernel_low, kernel_high;
+ int64_t kernel_entry, kernel_low, kernel_highi, initrd_size;
int index = 0;
- long kernel_size, initrd_size;
+ long kernel_size;
ram_addr_t initrd_offset;
uint32_t *prom_buf;
long prom_size;
diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index 40041d5..64ab5d1 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -995,8 +995,8 @@ static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t* prom_buf,
int index,
/* Kernel */
static int64_t load_kernel (void)
{
- int64_t kernel_entry, kernel_high;
- long kernel_size, initrd_size;
+ int64_t kernel_entry, kernel_high, initrd_size;
+ long kernel_size;
ram_addr_t initrd_offset;
int big_endian;
uint32_t *prom_buf;
diff --git a/hw/mips/mips_mipssim.c b/hw/mips/mips_mipssim.c
index 241faa1..f665752 100644
--- a/hw/mips/mips_mipssim.c
+++ b/hw/mips/mips_mipssim.c
@@ -58,9 +58,8 @@ typedef struct ResetData {
static int64_t load_kernel(void)
{
- int64_t entry, kernel_high;
+ int64_t entry, kernel_high, initrd_size;
long kernel_size;
- long initrd_size;
ram_addr_t initrd_offset;
int big_endian;
diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c
index d5725d0..ef6b810 100644
--- a/hw/mips/mips_r4k.c
+++ b/hw/mips/mips_r4k.c
@@ -81,8 +81,8 @@ typedef struct ResetData {
static int64_t load_kernel(void)
{
const size_t params_size = 264;
- int64_t entry, kernel_high;
- long kernel_size, initrd_size;
+ int64_t entry, kernel_high, initrd_size;
+ long kernel_size;
ram_addr_t initrd_offset;
uint32_t *params_buf;
int big_endian;
diff --git a/hw/moxie/moxiesim.c b/hw/moxie/moxiesim.c
index d41247d..4b0ce09 100644
--- a/hw/moxie/moxiesim.c
+++ b/hw/moxie/moxiesim.c
@@ -54,8 +54,8 @@ typedef struct {
static void load_kernel(MoxieCPU *cpu, LoaderParams *loader_params)
{
uint64_t entry, kernel_low, kernel_high;
+ int64_t initrd_size;
long kernel_size;
- long initrd_size;
ram_addr_t initrd_offset;
kernel_size = load_elf(loader_params->kernel_filename, NULL, NULL,
diff --git a/include/hw/loader.h b/include/hw/loader.h
index 3c11297..67a0af8 100644
--- a/include/hw/loader.h
+++ b/include/hw/loader.h
@@ -10,7 +10,7 @@
* Returns the size of the image file on success, -1 otherwise.
* On error, errno is also set as appropriate.
*/
-int get_image_size(const char *filename);
+int64_t get_image_size(const char *filename);
int load_image(const char *filename, uint8_t *addr); /* deprecated */
ssize_t load_image_size(const char *filename, void *addr, size_t size);
--
2.7.4
