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hw/pc_sysfw: support system flash memory with pflash

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Flash can be enabled by calling pc_system_firmware_init
with the system_flash_enabled parameter being non-zero.
If system_flash_enabled is zero, then the older qemu
rom creation method will be used.

If flash is enabled and a pflash image is found, then
it is used for the system firmware image.

If flash is enabled and a pflash image is not initially
found, then a read-only pflash device is created using
the -bios filename.

KVM cannot execute from a pflash region currently.
Therefore, when KVM is enabled, the old rom based
initialization method is used.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jordan Justen 2012-02-21 23:18:53 -08:00 • committed by Anthony Liguori
parent 90ccf9f6bf
commit bd183c79b5
3 changed files with 129 additions and 2 deletions
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1
default-configs/i386-softmmu.mak
View file

@ -24,3 +24,4 @@ CONFIG_SOUND=y
CONFIG_HPET=y
CONFIG_APPLESMC=y
CONFIG_I8259=y
CONFIG_PFLASH_CFI01=y

1
default-configs/x86_64-softmmu.mak
View file

@ -24,3 +24,4 @@ CONFIG_SOUND=y
CONFIG_HPET=y
CONFIG_APPLESMC=y
CONFIG_I8259=y
CONFIG_PFLASH_CFI01=y