diff options
author | Kees Cook <keescook@chromium.org> | 2018-01-04 01:14:24 +0000 |
---|---|---|
committer | Ben Hutchings <ben@decadent.org.uk> | 2018-01-09 00:35:20 +0000 |
commit | 88c38c3fedd878e608e0eb6a90a74d3ee11ae696 (patch) | |
tree | b1f27920d113f0b4d37ace0e5fce27ddba9d2393 /arch | |
parent | c8c9f9fe74b2402c24221ebe7a3be3e48d500870 (diff) |
KPTI: Rename to PAGE_TABLE_ISOLATION
This renames CONFIG_KAISER to CONFIG_PAGE_TABLE_ISOLATION.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/boot/compressed/misc.h | 2 | ||||
-rw-r--r-- | arch/x86/include/asm/cpufeature.h | 2 | ||||
-rw-r--r-- | arch/x86/include/asm/kaiser.h | 12 | ||||
-rw-r--r-- | arch/x86/include/asm/pgtable.h | 4 | ||||
-rw-r--r-- | arch/x86/include/asm/pgtable_64.h | 4 | ||||
-rw-r--r-- | arch/x86/include/asm/pgtable_types.h | 2 | ||||
-rw-r--r-- | arch/x86/include/asm/tlbflush.h | 2 | ||||
-rw-r--r-- | arch/x86/kernel/cpu/perf_event_intel_ds.c | 4 | ||||
-rw-r--r-- | arch/x86/kernel/entry_64.S | 12 | ||||
-rw-r--r-- | arch/x86/kernel/head_64.S | 2 | ||||
-rw-r--r-- | arch/x86/mm/Makefile | 2 |
11 files changed, 24 insertions, 24 deletions
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index d616f0481331..d527b9b12dd4 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -9,7 +9,7 @@ */ #undef CONFIG_PARAVIRT #undef CONFIG_PARAVIRT_SPINLOCKS -#undef CONFIG_KAISER +#undef CONFIG_PAGE_TABLE_ISOLATION #include <linux/linkage.h> #include <linux/screen_info.h> diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 8987eafe406f..6b8fc931a973 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -189,7 +189,7 @@ #define X86_FEATURE_INVPCID_SINGLE (7*32+10) /* Effectively INVPCID && CR4.PCIDE=1 */ /* Because the ALTERNATIVE scheme is for members of the X86_FEATURE club... */ -#define X86_FEATURE_KAISER (7*32+31) /* "" CONFIG_KAISER w/o nokaiser */ +#define X86_FEATURE_KAISER (7*32+31) /* "" CONFIG_PAGE_TABLE_ISOLATION w/o nokaiser */ /* Virtualization flags: Linux defined, word 8 */ #define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ diff --git a/arch/x86/include/asm/kaiser.h b/arch/x86/include/asm/kaiser.h index b5e46aa683f4..802bbbdfe143 100644 --- a/arch/x86/include/asm/kaiser.h +++ b/arch/x86/include/asm/kaiser.h @@ -20,7 +20,7 @@ #define KAISER_SHADOW_PGD_OFFSET 0x1000 #ifdef __ASSEMBLY__ -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION .macro _SWITCH_TO_KERNEL_CR3 reg movq %cr3, \reg @@ -69,7 +69,7 @@ movq PER_CPU_VAR(unsafe_stack_register_backup), %rax 8: .endm -#else /* CONFIG_KAISER */ +#else /* CONFIG_PAGE_TABLE_ISOLATION */ .macro SWITCH_KERNEL_CR3 .endm @@ -78,11 +78,11 @@ movq PER_CPU_VAR(unsafe_stack_register_backup), %rax .macro SWITCH_KERNEL_CR3_NO_STACK .endm -#endif /* CONFIG_KAISER */ +#endif /* CONFIG_PAGE_TABLE_ISOLATION */ #else /* __ASSEMBLY__ */ -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* * Upon kernel/user mode switch, it may happen that the address * space has to be switched before the registers have been @@ -100,10 +100,10 @@ extern void __init kaiser_check_boottime_disable(void); #else #define kaiser_enabled 0 static inline void __init kaiser_check_boottime_disable(void) {} -#endif /* CONFIG_KAISER */ +#endif /* CONFIG_PAGE_TABLE_ISOLATION */ /* - * Kaiser function prototypes are needed even when CONFIG_KAISER is not set, + * Kaiser function prototypes are needed even when CONFIG_PAGE_TABLE_ISOLATION is not set, * so as to build with tests on kaiser_enabled instead of #ifdefs. */ diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 2f0235949949..1b5b34cba964 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -17,7 +17,7 @@ #ifndef __ASSEMBLY__ #include <asm/x86_init.h> -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION extern int kaiser_enabled; #else #define kaiser_enabled 0 @@ -860,7 +860,7 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) { memcpy(dst, src, count * sizeof(pgd_t)); -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION if (kaiser_enabled) { /* Clone the shadow pgd part as well */ memcpy(native_get_shadow_pgd(dst), diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h index 0ec41e1b03c7..ada2cb8adbc2 100644 --- a/arch/x86/include/asm/pgtable_64.h +++ b/arch/x86/include/asm/pgtable_64.h @@ -106,7 +106,7 @@ static inline void native_pud_clear(pud_t *pud) native_set_pud(pud, native_make_pud(0)); } -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION extern pgd_t kaiser_set_shadow_pgd(pgd_t *pgdp, pgd_t pgd); static inline pgd_t *native_get_shadow_pgd(pgd_t *pgdp) @@ -127,7 +127,7 @@ static inline pgd_t *native_get_shadow_pgd(pgd_t *pgdp) BUILD_BUG_ON(1); return NULL; } -#endif /* CONFIG_KAISER */ +#endif /* CONFIG_PAGE_TABLE_ISOLATION */ static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd) { diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 2044094b6c53..c5d7703dc591 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -136,7 +136,7 @@ #define X86_CR3_PCID_MASK (X86_CR3_PCID_NOFLUSH | X86_CR3_PCID_ASID_MASK) #define X86_CR3_PCID_ASID_KERN (_AC(0x0,UL)) -#if defined(CONFIG_KAISER) && defined(CONFIG_X86_64) +#if defined(CONFIG_PAGE_TABLE_ISOLATION) && defined(CONFIG_X86_64) /* Let X86_CR3_PCID_ASID_USER be usable for the X86_CR3_PCID_NOFLUSH bit */ #define X86_CR3_PCID_ASID_USER (_AC(0x80,UL)) diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index 6cc650716b89..bd10f6775dfd 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -105,7 +105,7 @@ static inline void cr4_set_bits_and_update_boot(unsigned long mask) * Declare a couple of kaiser interfaces here for convenience, * to avoid the need for asm/kaiser.h in unexpected places. */ -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION extern int kaiser_enabled; extern void kaiser_setup_pcid(void); extern void kaiser_flush_tlb_on_return_to_user(void); diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c index 6546ae2f3950..711135df29d2 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_ds.c +++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c @@ -262,7 +262,7 @@ static DEFINE_PER_CPU(void *, insn_buffer); static void *dsalloc(size_t size, gfp_t flags, int node) { -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION unsigned int order = get_order(size); struct page *page; unsigned long addr; @@ -283,7 +283,7 @@ static void *dsalloc(size_t size, gfp_t flags, int node) static void dsfree(const void *buffer, size_t size) { -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION if (!buffer) return; kaiser_remove_mapping((unsigned long)buffer, size); diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 65b0b0388520..5dc1043544ad 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -318,7 +318,7 @@ ENTRY(save_paranoid) SWAPGS xorl %ebx,%ebx 1: -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* * We might have come in between a swapgs and a SWITCH_KERNEL_CR3 * on entry, or between a SWITCH_USER_CR3 and a swapgs on exit. @@ -1351,7 +1351,7 @@ ENTRY(paranoid_exit) paranoid_kernel: movq %r12, %rbx /* restore after paranoid_userspace */ TRACE_IRQS_IRETQ_DEBUG 0 -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* No ALTERNATIVE for X86_FEATURE_KAISER: paranoid_entry sets %ebx */ testl $2, %ebx /* SWITCH_USER_CR3 needed? */ jz paranoid_exit_no_switch @@ -1599,7 +1599,7 @@ ENTRY(nmi) movq %rsp, %rdi movq $-1, %rsi -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* Unconditionally use kernel CR3 for do_nmi() */ /* %rax is saved above, so OK to clobber here */ ALTERNATIVE "jmp 2f", "movq %cr3, %rax", X86_FEATURE_KAISER @@ -1613,7 +1613,7 @@ ENTRY(nmi) #endif call do_nmi -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* * Unconditionally restore CR3. I know we return to * kernel code that needs user CR3, but do we ever return @@ -1869,7 +1869,7 @@ end_repeat_nmi: 1: movq %rsp,%rdi movq $-1,%rsi -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* Unconditionally use kernel CR3 for do_nmi() */ /* %rax is saved above, so OK to clobber here */ ALTERNATIVE "jmp 2f", "movq %cr3, %rax", X86_FEATURE_KAISER @@ -1886,7 +1886,7 @@ end_repeat_nmi: /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */ call do_nmi -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* * Unconditionally restore CR3. We might be returning to * kernel code that needs user CR3, like just just before diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 2f0f947a80da..8c3cdb9ba14b 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -441,7 +441,7 @@ early_idt_ripmsg: .balign PAGE_SIZE; \ GLOBAL(name) -#ifdef CONFIG_KAISER +#ifdef CONFIG_PAGE_TABLE_ISOLATION /* * Each PGD needs to be 8k long and 8k aligned. We do not * ever go out to userspace with these, so we do not diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index a488bf080a38..8a8ac114358f 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -29,4 +29,4 @@ obj-$(CONFIG_ACPI_NUMA) += srat.o obj-$(CONFIG_NUMA_EMU) += numa_emulation.o obj-$(CONFIG_MEMTEST) += memtest.o -obj-$(CONFIG_KAISER) += kaiser.o +obj-$(CONFIG_PAGE_TABLE_ISOLATION) += kaiser.o |