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xen: pvblock: Add initial support for para-virtualized block driver

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Add initial infrastructure for Xen para-virtualized block device.
This includes compile-time configuration and the skeleton for
the future driver implementation.
Add new class UCLASS_PVBLOCK which is going to be a parent for
virtual block devices.
Add new interface type IF_TYPE_PVBLOCK.

Implement basic driver setup by reading XenStore configuration.

Signed-off-by: Andrii Anisov <andrii_anisov@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
This commit is contained in:
Anastasiia Lukianenko
2020-08-06 12:42:55 +03:00
committed by Tom Rini
parent c850674ff7
commit 722bc5b5d9
15 changed files with 223 additions and 0 deletions
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8
include/configs/xenguest_arm64.h
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@@ -41,4 +41,12 @@
#define CONFIG_CMDLINE_TAG 1
#define CONFIG_INITRD_TAG 1
#define CONFIG_CMD_RUN
#undef CONFIG_EXTRA_ENV_SETTINGS
#define CONFIG_EXTRA_ENV_SETTINGS \
"loadimage=ext4load pvblock 0 0x90000000 /boot/Image;\0" \
"pvblockboot=run loadimage;" \
"booti 0x90000000 - 0x88000000;\0"
#endif /* __XENGUEST_ARM64_H */