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-rw-r--r--arch/x86/boot/compressed/misc.h2
-rw-r--r--arch/x86/include/asm/cpufeature.h2
-rw-r--r--arch/x86/include/asm/kaiser.h12
-rw-r--r--arch/x86/include/asm/pgtable.h4
-rw-r--r--arch/x86/include/asm/pgtable_64.h4
-rw-r--r--arch/x86/include/asm/pgtable_types.h2
-rw-r--r--arch/x86/include/asm/tlbflush.h2
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_ds.c4
-rw-r--r--arch/x86/kernel/entry_64.S12
-rw-r--r--arch/x86/kernel/head_64.S2
-rw-r--r--arch/x86/mm/Makefile2
-rw-r--r--include/linux/kaiser.h6
-rw-r--r--include/linux/percpu-defs.h2
-rw-r--r--security/Kconfig2
14 files changed, 29 insertions, 29 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
diff --git a/include/linux/kaiser.h b/include/linux/kaiser.h
index 4a4d6d911a14..58c55b1589d0 100644
--- a/include/linux/kaiser.h
+++ b/include/linux/kaiser.h
@@ -1,7 +1,7 @@
#ifndef _LINUX_KAISER_H
#define _LINUX_KAISER_H
-#ifdef CONFIG_KAISER
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
#include <asm/kaiser.h>
static inline int kaiser_map_thread_stack(void *stack)
@@ -24,7 +24,7 @@ static inline void kaiser_unmap_thread_stack(void *stack)
#else
/*
- * These stubs are used whenever CONFIG_KAISER is off, which
+ * These stubs are used whenever CONFIG_PAGE_TABLE_ISOLATION is off, which
* includes architectures that support KAISER, but have it disabled.
*/
@@ -48,5 +48,5 @@ static inline void kaiser_unmap_thread_stack(void *stack)
{
}
-#endif /* !CONFIG_KAISER */
+#endif /* !CONFIG_PAGE_TABLE_ISOLATION */
#endif /* _LINUX_KAISER_H */
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 4eb4f90d211b..c2d267b53d40 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -1,7 +1,7 @@
#ifndef _LINUX_PERCPU_DEFS_H
#define _LINUX_PERCPU_DEFS_H
-#ifdef CONFIG_KAISER
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
#define USER_MAPPED_SECTION "..user_mapped"
#else
#define USER_MAPPED_SECTION ""
diff --git a/security/Kconfig b/security/Kconfig
index ff4e38f757f1..89e13fb728f5 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -30,7 +30,7 @@ config SECURITY
If you are unsure how to answer this question, answer N.
-config KAISER
+config PAGE_TABLE_ISOLATION
bool "Remove the kernel mapping in user mode"
default y
depends on X86_64 && SMP
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-25 21:11:51 +0000