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* stand/efi: allow not exiting boot servicesRoger Pau Monné2021-02-161-2/+2
| | | | | | | | | | | | | | | | | | Xen requires that UEFI BootServices are enabled in order to boot, so introduce a new parameter to bi_load in order to select whether BS should be exited. No functional change introduced in this patch, as all current users of bi_load request BS to be exited. Further changes will make use of this functionality. Note the memory map is still appended to the kernel metadata, even when it could be modified by further calls to the Boot Services, as it will be used to detect if the kernel has been booted from UEFI. Sponsored by: Citrix Systems R&D Reviewed by: tsoome, imp Differential revision: https://reviews.freebsd.org/D28495
* loader: Ignore the .interp section on RISC-VJessica Clarke2020-12-141-0/+1
| | | | | | | | | | | | | | Without this we risk having the .interp section be placed earlier in the file and mess with section offsets; in particular it has been seen to be placed at the start of the file and cause the PE/COFF header to not be at address 0. This is the same fix as was done for arm64 in r365578. Reviewed by: mhorne, imp Approved by: mhorne, imp Differential Revision: https://reviews.freebsd.org/D27603 Notes: svn path=/head/; revision=368626
* loader: Avoid -Wpointer-to-int cast warnings for Arm and RISC-VJessica Clarke2020-07-261-1/+1
| | | | | | | | | | | | | | | | | On RISC-V, Clang warns with: cast to smaller integer type 'unsigned int' from 'void (*)(void *)' Instead, use %p as the standard format specifier for printing pointers. Whilst Arm's pointer size is the same as unsigned, it's still cleaner to use the right thing there too. Reviewed by: brooks (mentor), emaste Approved by: brooks (mentor), emaste Differential Revision: https://reviews.freebsd.org/D25718 Notes: svn path=/head/; revision=363572
* RISC-V boot1.efi and loader.efi supportMitchell Horne2020-07-064-0/+354
This implementation doesn't have any major deviations from the other EFI ports. I've copied the boilerplate from arm and arm64. I've tested this with the following boot flows: OpenSBI (M-mode) -> u-boot (S-mode) -> loader.efi -> FreeBSD OpenSBI (M-mode) -> u-boot (S-mode) -> boot1.efi -> loader.efi -> FreeBSD Due to the way that u-boot handles secondary CPUs, OpenSBI >= v0.7 is required, as the HSM extension is needed to bring them up explicitly. Because of this, using BBL as the SBI implementation will not be possible. Additionally, there are a few recent u-boot changes that are required as well, all of which will be present in the upcoming v2020.07 release. Looks good: emaste Differential Revision: https://reviews.freebsd.org/D25135 Notes: svn path=/head/; revision=362973