Markus Armbruster <arm...@redhat.com> writes:
> Philippe Mathieu-Daudé <phi...@redhat.com> writes:
>
>> Hi Markus,
>>
>> this is a rework of your 'mips_malta: Clean up definition of flash memory
>> size somewhat' patch:
>> https://lists.gnu.org/archive/html/qemu-devel/2019-02/msg07177.html
>
> Diff between my patch and your series:
>
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index 9ade9b194c..2827074e9b 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -1269,12 +1269,12 @@ void mips_malta_init(MachineState *machine)
> if (dinfo) {
> printf("Register parallel flash %d size " TARGET_FMT_lx " at "
> "addr %08llx '%s' %x\n",
> - fl_idx, FLASH_SIZE, FLASH_ADDRESS,
> + fl_idx, bios_size, FLASH_ADDRESS,
> blk_name(dinfo->bdrv), fl_sectors);
> }
> #endif
> fl = pflash_cfi01_register(FLASH_ADDRESS, NULL, "mips_malta.bios",
> - FLASH_SIZE,
> + BIOS_SIZE,
> dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
> 65536, fl_sectors,
> 4, 0x0000, 0x0000, 0x0000, 0x0000, be);
>
> We have in include/hw/mips/bios.h
>
> #define BIOS_SIZE (4 * MiB)
>
> and locally
>
> #define FLASH_SIZE 0x400000
>
> target_long bios_size = FLASH_SIZE;
>
> Three names for the same value. Therefore, there's no functional
> difference, just more cleanup. Good to know.
Wrong diff, sorry.
diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index 9ade9b194c..a5726edaa7 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -40,6 +40,7 @@
#include "hw/pci/pci.h"
#include "sysemu/sysemu.h"
#include "sysemu/arch_init.h"
+#include "sysemu/block-backend.h"
#include "qemu/log.h"
#include "hw/mips/bios.h"
#include "hw/ide.h"
@@ -1195,7 +1196,6 @@ void mips_malta_init(MachineState *machine)
MemoryRegion *ram_low_preio = g_new(MemoryRegion, 1);
MemoryRegion *ram_low_postio;
MemoryRegion *bios, *bios_copy = g_new(MemoryRegion, 1);
- target_long bios_size = FLASH_SIZE;
const size_t smbus_eeprom_size = 8 * 256;
uint8_t *smbus_eeprom_buf = g_malloc0(smbus_eeprom_size);
int64_t kernel_entry, bootloader_run_addr;
@@ -1205,10 +1205,10 @@ void mips_malta_init(MachineState *machine)
qemu_irq cbus_irq, i8259_irq;
int piix4_devfn;
I2CBus *smbus;
+ BlockBackend *pflash_blk = NULL;
DriveInfo *dinfo;
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
int fl_idx = 0;
- int fl_sectors = bios_size >> 16;
int be;
DeviceState *dev = qdev_create(NULL, TYPE_MIPS_MALTA);
@@ -1265,18 +1265,24 @@ void mips_malta_init(MachineState *machine)
/* Load firmware in flash / BIOS. */
dinfo = drive_get(IF_PFLASH, 0, fl_idx);
-#ifdef DEBUG_BOARD_INIT
if (dinfo) {
+ pflash_blk = blk_by_legacy_dinfo(dinfo);
+
+ if (blk_getlength(pflash_blk) != FLASH_SIZE) {
+ error_report("Malta CoreLV card expects a bios of 4MB");
+ exit(1);
+ }
+#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size " TARGET_FMT_lx " at "
- "addr %08llx '%s' %x\n",
- fl_idx, FLASH_SIZE, FLASH_ADDRESS,
- blk_name(dinfo->bdrv), fl_sectors);
- }
+ "addr %08llx '%s'\n",
+ fl_idx, blk_getlength(pflash_blk), FLASH_ADDRESS,
+ blk_name(pflash_blk));
#endif
+ }
fl = pflash_cfi01_register(FLASH_ADDRESS, NULL, "mips_malta.bios",
FLASH_SIZE,
- dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
- 65536, fl_sectors,
+ pflash_blk,
+ 65536, FLASH_SIZE >> 16,
4, 0x0000, 0x0000, 0x0000, 0x0000, be);
bios = pflash_cfi01_get_memory(fl);
fl_idx++;
@@ -1312,6 +1318,7 @@ void mips_malta_init(MachineState *machine)
bootloader_run_addr, kernel_entry);
}
} else {
+ target_long bios_size = FLASH_SIZE;
/* The flash region isn't executable from a KVM guest */
if (kvm_enabled()) {
error_report("KVM enabled but no -kernel argument was specified. "
