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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-03-28 12:19:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-03-28 12:19:16 -0700 |
| commit | 36a14638f7c06546717cc1316fcfee6da42b98cc (patch) | |
| tree | 21205e622f9d949e77197901abe23030ffa5d1ce | |
| parent | 47fbbc94dab61a1385f21a0a209c61b5d6b0a215 (diff) | |
| parent | 9fcb51c14da2953de585c5c6e50697b8a6e91a7b (diff) | |
| download | linux-36a14638f7c06546717cc1316fcfee6da42b98cc.tar.bz2 | |
Merge tag 'x86-urgent-2021-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Two fixes:
- Fix build failure on Ubuntu with new GCC packages that turn
on -fcf-protection
- Fix SME memory encryption PTE encoding bug - AFAICT the code
worked on 4K page sizes (level 1) but had the wrong shift at
higher page level orders (level 2 and higher)"
* tag 'x86-urgent-2021-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/build: Turn off -fcf-protection for realmode targets
x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc()
| -rw-r--r-- | arch/x86/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/mm/mem_encrypt.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 2d6d5a28c3bf..9a85eae37b17 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -27,7 +27,7 @@ endif REALMODE_CFLAGS := -m16 -g -Os -DDISABLE_BRANCH_PROFILING \ -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ - -mno-mmx -mno-sse + -mno-mmx -mno-sse $(call cc-option,-fcf-protection=none) REALMODE_CFLAGS += -ffreestanding REALMODE_CFLAGS += -fno-stack-protector diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c index 4b01f7dbaf30..ae78cef79980 100644 --- a/arch/x86/mm/mem_encrypt.c +++ b/arch/x86/mm/mem_encrypt.c @@ -262,7 +262,7 @@ static void __init __set_clr_pte_enc(pte_t *kpte, int level, bool enc) if (pgprot_val(old_prot) == pgprot_val(new_prot)) return; - pa = pfn << page_level_shift(level); + pa = pfn << PAGE_SHIFT; size = page_level_size(level); /* |