Juergen Gross f1e5250094 x86/boot: Skip realmode init code when running as Xen PV guest ... When running as a Xen PV guest there is no need for setting up the realmode trampoline, as realmode isn't supported in this environment. Trying to setup the trampoline has been proven to be problematic in some cases, especially when trying to debug early boot problems with Xen requiring to keep the EFI boot-services memory mapped (some firmware variants seem to claim basically all memory below 1Mb for boot services). Introduce new x86_platform_ops operations for that purpose, which can be set to a NOP by the Xen PV specific kernel boot code. [ bp: s/call_init_real_mode/do_init_real_mode/ ] Fixes: 084ee1c641 ("x86, realmode: Relocator for realmode code") Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20221123114523.3467-1-jgross@suse.com		2022-11-25 12:05:22 +01:00
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rm	x86: kmsan: disable instrumentation of unsupported code	2022-10-03 14:03:24 -07:00
Makefile	x86, objtool: Dont exclude arch/x86/realmode/	2021-05-12 14:54:54 +02:00
init.c	x86/boot: Skip realmode init code when running as Xen PV guest	2022-11-25 12:05:22 +01:00
rmpiggy.S	x86/asm/realmode: Use SYM_DATA_* instead of GLOBAL	2019-10-18 11:28:47 +02:00