Pawan Gupta e2a1256b17 x86/speculation: Restore speculation related MSRs during S3 resume ... After resuming from suspend-to-RAM, the MSRs that control CPU's speculative execution behavior are not being restored on the boot CPU. These MSRs are used to mitigate speculative execution vulnerabilities. Not restoring them correctly may leave the CPU vulnerable. Secondary CPU's MSRs are correctly being restored at S3 resume by identify_secondary_cpu(). During S3 resume, restore these MSRs for boot CPU when restoring its processor state. Fixes: 772439717d ("x86/bugs/intel: Set proper CPU features and setup RDS") Reported-by: Neelima Krishnan <neelima.krishnan@intel.com> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Tested-by: Neelima Krishnan <neelima.krishnan@intel.com> Acked-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2022-04-05 10:18:31 -07:00
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Makefile	clang-lto for v5.12-rc1 (part2)	2021-02-23 15:13:45 -08:00
cpu.c	x86/speculation: Restore speculation related MSRs during S3 resume	2022-04-05 10:18:31 -07:00
hibernate.c	PM: hibernate: x86: Use crc32 instead of md5 for hibernation e820 integrity check	2021-04-21 19:03:37 +02:00
hibernate_32.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
hibernate_64.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
hibernate_asm_32.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00
hibernate_asm_64.S	x86: Prepare asm files for straight-line-speculation	2021-12-08 12:25:37 +01:00