u-boot.git/board/emulation, branch v2021.01

riscv: enable SATA disk on QEMU RISC-V

2020-11-17T07:09:16Z

Allow attaching a virtual SATA disk to QEMU RISC-V by implying AHCI, AHCI_PCI, CMD_SCSI, DM_SCSI, PCI_INIT_R, SCSI, SCSI_AHCI. Signed-off-by: Heinrich Schuchardt Reviewed-by: Bin Meng

riscv: sort SPECIFIC_OPTIONS

2020-11-17T07:09:16Z

Sort implied options in BOARD_SPECIFIC_OPTIONS in the same sequence as in .config. Signed-off-by: Heinrich Schuchardt Reviewed-by: Bin Meng

x86: qemu: Remove dead code

2020-09-01T09:00:27Z

start.S does nothing and can be safely removed. Makefile is still being used by the build system, so simply replace the rule in it. We use stub C-file like it's done for other boards. Signed-off-by: Andy Shevchenko Reviewed-by: Simon Glass Reviewed-by: Bin Meng

arm: qemu: override flash accessors to use virtualizable instructions

2020-07-29T12:43:40Z

Some instructions in the ARM ISA have multiple output registers, such as ldrd/ldp (load pair), where two registers are loaded from memory, but also ldr with indexing, where the memory base register is incremented as well when the value is loaded to the destination register. MMIO emulation under KVM is based on using the architecturally defined syndrome information that is provided when an exception is taken to the hypervisor. This syndrome information describes whether the instruction that triggered the exception is a load or a store, what the faulting address was, and which register was the destination register. This syndrome information can only describe one destination register, and when the trapping instruction is one with multiple outputs, KVM throws an error like kvm [615929]: Data abort outside memslots with no valid syndrome info on the host and kills the QEMU process with the following error: U-Boot 2020.07-rc3-00208-g88bd5b179360-dirty (Jun 06 2020 - 11:59:22 +0200) DRAM: 1 GiB Flash: error: kvm run failed Function not implemented R00=00000001 R01=00000040 R02=7ee0ce20 R03=00000000 R04=7ffd9eec R05=00000004 R06=7ffda3f8 R07=00000055 R08=7ffd9eec R09=7ef0ded0 R10=7ee0ce20 R11=00000000 R12=00000004 R13=7ee0cdf8 R14=00000000 R15=7ff72d08 PSR=200001d3 --C- A svc32 QEMU: Terminated This means that, in order to run U-Boot in QEMU under KVM, we need to avoid such instructions when accessing emulated devices. For the flash in particular, which is a hybrid between a ROM (backed by a read-only KVM memslot) when in array mode, and an emulated MMIO device (when in write mode), we need to take care to only use instructions that KVM can deal with when they trap. So override the flash read accessors that are used when running on QEMU under KVM. Note that the the 64-bit wide read and write accessors have been omitted: they are never used when running under QEMU given that it does not emulate CFI flash that supports it. Signed-off-by: Ard Biesheuvel Reviewed-by: Andre Przywara

arm: qemu: implement enable_caches()

2020-07-29T12:43:40Z

Add an override for enable_caches to enable the I and D caches, along with the cached 1:1 mapping of all of DRAM. This is needed for running U-Boot under virtualization with QEMU/kvm. Signed-off-by: Ard Biesheuvel Reviewed-by: Heinrich Schuchardt Reviewed-by: Andre Przywara

riscv: qemu: Add syscon reboot and poweroff support

2020-07-24T06:55:55Z

This adds syscon reboot and poweroff support to QEMU RISC-V. Signed-off-by: Bin Meng Reviewed-by: Pragnesh Patel

common: Drop log.h from common header

2020-05-19T01:19:18Z

Move this header out of the common header. Signed-off-by: Simon Glass

common: Drop init.h from common header

2020-05-18T21:33:33Z

Move this uncommon header out of the common header. Signed-off-by: Simon Glass

common: Drop image.h from common header

2020-05-18T21:33:33Z

Move this uncommon header out of the common header. Signed-off-by: Simon Glass

Revert "riscv: qemu: clear kernel-start/-end in device tree as workaround for BBL"

2020-04-23T02:13:35Z

The commit was added as a workaround required in QEMU when using BBL as the supervisor binary interface (SBI) for Linux. We are now using OpenSBI to provide the SBI, the workaround is therefore not required anymore and can be removed. This reverts commit 897206c5cc5c6ac0dc2ab851044e42baada3785b. Signed-off-by: Lukas Auer Reviewed-by: Bin Meng