[Qemu-devel] [PATCH 2/2] hw/mips/mips_malta: don't make bios region 'nomigrate'

Peter Maydell posted 2 patches 7 years, 5 months ago
[Qemu-devel] [PATCH 2/2] hw/mips/mips_malta: don't make bios region 'nomigrate'
Posted by Peter Maydell 7 years, 5 months ago
Currently we use memory_region_init_rom_nomigrate() to create
the "bios.1fc" memory region, and we don't manually register
it with vmstate_register_ram(). This currently means that its
contents are migrated but as a ram block whose name is the empty
string; in future it may mean they are not migrated at all. Use
memory_region_init_ram() instead.

Note that this is a a cross-version migration compatibility break
for the "malta" machine.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/mips/mips_malta.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index af70ecffc0..927944899b 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -1153,7 +1153,7 @@ void mips_malta_init(MachineState *machine)
      * handled by an overlapping region as the resulting ROM code subpage
      * regions are not executable.
      */
-    memory_region_init_ram_nomigrate(bios_copy, NULL, "bios.1fc", BIOS_SIZE,
+    memory_region_init_ram(bios_copy, NULL, "bios.1fc", BIOS_SIZE,
                            &error_fatal);
     if (!rom_copy(memory_region_get_ram_ptr(bios_copy),
                   FLASH_ADDRESS, BIOS_SIZE)) {
-- 
2.17.1


Re: [Qemu-devel] [PATCH 2/2] hw/mips/mips_malta: don't make bios region 'nomigrate'
Posted by Cédric Le Goater 7 years, 5 months ago
On 06/04/2018 01:03 PM, Peter Maydell wrote:
> Currently we use memory_region_init_rom_nomigrate() to create
> the "bios.1fc" memory region, and we don't manually register
> it with vmstate_register_ram(). This currently means that its
> contents are migrated but as a ram block whose name is the empty
> string; in future it may mean they are not migrated at all. Use
> memory_region_init_ram() instead.
> 
> Note that this is a a cross-version migration compatibility break
> for the "malta" machine.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.

> ---
>  hw/mips/mips_malta.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index af70ecffc0..927944899b 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -1153,7 +1153,7 @@ void mips_malta_init(MachineState *machine)
>       * handled by an overlapping region as the resulting ROM code subpage
>       * regions are not executable.
>       */
> -    memory_region_init_ram_nomigrate(bios_copy, NULL, "bios.1fc", BIOS_SIZE,
> +    memory_region_init_ram(bios_copy, NULL, "bios.1fc", BIOS_SIZE,
>                             &error_fatal);
>      if (!rom_copy(memory_region_get_ram_ptr(bios_copy),
>                    FLASH_ADDRESS, BIOS_SIZE)) {
> 


Re: [Qemu-devel] [PATCH 2/2] hw/mips/mips_malta: don't make bios region 'nomigrate'
Posted by Philippe Mathieu-Daudé 7 years, 5 months ago
On 06/04/2018 08:03 AM, Peter Maydell wrote:
> Currently we use memory_region_init_rom_nomigrate() to create
> the "bios.1fc" memory region, and we don't manually register
> it with vmstate_register_ram(). This currently means that its
> contents are migrated but as a ram block whose name is the empty
> string; in future it may mean they are not migrated at all. Use
> memory_region_init_ram() instead.
> 
> Note that this is a a cross-version migration compatibility break
> for the "malta" machine.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> ---
>  hw/mips/mips_malta.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index af70ecffc0..927944899b 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -1153,7 +1153,7 @@ void mips_malta_init(MachineState *machine)
>       * handled by an overlapping region as the resulting ROM code subpage
>       * regions are not executable.
>       */
> -    memory_region_init_ram_nomigrate(bios_copy, NULL, "bios.1fc", BIOS_SIZE,
> +    memory_region_init_ram(bios_copy, NULL, "bios.1fc", BIOS_SIZE,
>                             &error_fatal);
>      if (!rom_copy(memory_region_get_ram_ptr(bios_copy),
>                    FLASH_ADDRESS, BIOS_SIZE)) {
>