From: Vincenzo Frascino <vincenzo.frascino@arm.com> To: Catalin Marinas <catalin.marinas@arm.com>, Andrey Konovalov <andreyknvl@google.com> Cc: Dmitry Vyukov <dvyukov@google.com>, kasan-dev@googlegroups.com, Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com>, Evgenii Stepanov <eugenis@google.com>, Elena Petrova <lenaptr@google.com>, Branislav Rankov <Branislav.Rankov@arm.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Will Deacon <will.deacon@arm.com>, Andrew Morton <akpm@linux-foundation.org>, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 24/35] arm64: mte: Switch GCR_EL1 in kernel entry and exit Date: Thu, 27 Aug 2020 11:56:49 +0100 [thread overview] Message-ID: <8affcfbe-b8b4-0914-1651-368f669ddf85@arm.com> (raw) In-Reply-To: <20200827103819.GE29264@gaia> On 8/27/20 11:38 AM, Catalin Marinas wrote: > On Fri, Aug 14, 2020 at 07:27:06PM +0200, Andrey Konovalov wrote: >> diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S >> index cde127508e38..a17fefb0571b 100644 >> --- a/arch/arm64/kernel/entry.S >> +++ b/arch/arm64/kernel/entry.S >> @@ -172,6 +172,29 @@ alternative_else_nop_endif >> #endif >> .endm >> >> + /* Note: tmp should always be a callee-saved register */ > > Why callee-saved? Do you preserve it anywhere here? > Aargh, this is an old comment, I forgot to remove it after the last refactor. Thank you for pointing this out. >> + .macro mte_restore_gcr, el, tsk, tmp, tmp2 >> +#ifdef CONFIG_ARM64_MTE >> +alternative_if_not ARM64_MTE >> + b 1f >> +alternative_else_nop_endif >> + .if \el == 0 >> + ldr \tmp, [\tsk, #THREAD_GCR_EL1_USER] >> + .else >> + ldr_l \tmp, gcr_kernel_excl >> + .endif >> + /* >> + * Calculate and set the exclude mask preserving >> + * the RRND (bit[16]) setting. >> + */ >> + mrs_s \tmp2, SYS_GCR_EL1 >> + bfi \tmp2, \tmp, #0, #16 >> + msr_s SYS_GCR_EL1, \tmp2 >> + isb >> +1: >> +#endif >> + .endm >> + >> .macro kernel_entry, el, regsize = 64 >> .if \regsize == 32 >> mov w0, w0 // zero upper 32 bits of x0 >> @@ -209,6 +232,8 @@ alternative_else_nop_endif >> >> ptrauth_keys_install_kernel tsk, x20, x22, x23 >> >> + mte_restore_gcr 1, tsk, x22, x23 >> + >> scs_load tsk, x20 >> .else >> add x21, sp, #S_FRAME_SIZE >> @@ -386,6 +411,8 @@ alternative_else_nop_endif >> /* No kernel C function calls after this as user keys are set. */ >> ptrauth_keys_install_user tsk, x0, x1, x2 >> >> + mte_restore_gcr 0, tsk, x0, x1 >> + >> apply_ssbd 0, x0, x1 >> .endif >> >> @@ -957,6 +984,7 @@ SYM_FUNC_START(cpu_switch_to) >> mov sp, x9 >> msr sp_el0, x1 >> ptrauth_keys_install_kernel x1, x8, x9, x10 >> + mte_restore_gcr 1, x1, x8, x9 >> scs_save x0, x8 >> scs_load x1, x8 >> ret > > Since we set GCR_EL1 on exception entry and return, why is this needed? > We don't have a per-kernel thread GCR_EL1, it's global to all threads, > so I think cpu_switch_to() should not be touched. > I agree, we can remove it. We only require the kernel entry and the kernel exit ones. >> diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c >> index 7717ea9bc2a7..cfac7d02f032 100644 >> --- a/arch/arm64/kernel/mte.c >> +++ b/arch/arm64/kernel/mte.c >> @@ -18,10 +18,14 @@ >> >> #include <asm/barrier.h> >> #include <asm/cpufeature.h> >> +#include <asm/kasan.h> >> +#include <asm/kprobes.h> >> #include <asm/mte.h> >> #include <asm/ptrace.h> >> #include <asm/sysreg.h> >> >> +u64 gcr_kernel_excl __read_mostly; > > Could we make this __ro_after_init? > Yes, it makes sense, it should be updated only once through mte_init_tags(). Something to consider though here is that this might not be the right approach if in future we want to add stack tagging. In such a case we need to know the kernel exclude mask before any C code is executed. Initializing the mask via mte_init_tags() it is too late. I was thinking to add a compilation define instead of having gcr_kernel_excl in place. This might not work if the kernel excl mask is meant to change during the execution. Thoughts? >> + >> static void mte_sync_page_tags(struct page *page, pte_t *ptep, bool check_swap) >> { >> pte_t old_pte = READ_ONCE(*ptep); >> @@ -115,6 +119,13 @@ void * __must_check mte_set_mem_tag_range(void *addr, size_t size, u8 tag) >> return ptr; >> } >> >> +void mte_init_tags(u64 max_tag) >> +{ >> + u64 incl = ((1ULL << ((max_tag & MTE_TAG_MAX) + 1)) - 1); > > I'd rather use GENMASK here, it is more readable. > Agree, we can change it. -- Regards, Vincenzo
WARNING: multiple messages have this Message-ID (diff)
From: Vincenzo Frascino <vincenzo.frascino@arm.com> To: Catalin Marinas <catalin.marinas@arm.com>, Andrey Konovalov <andreyknvl@google.com> Cc: linux-arm-kernel@lists.infradead.org, Marco Elver <elver@google.com>, Elena Petrova <lenaptr@google.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Will Deacon <will.deacon@arm.com>, Branislav Rankov <Branislav.Rankov@arm.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Andrew Morton <akpm@linux-foundation.org>, Evgenii Stepanov <eugenis@google.com> Subject: Re: [PATCH 24/35] arm64: mte: Switch GCR_EL1 in kernel entry and exit Date: Thu, 27 Aug 2020 11:56:49 +0100 [thread overview] Message-ID: <8affcfbe-b8b4-0914-1651-368f669ddf85@arm.com> (raw) In-Reply-To: <20200827103819.GE29264@gaia> On 8/27/20 11:38 AM, Catalin Marinas wrote: > On Fri, Aug 14, 2020 at 07:27:06PM +0200, Andrey Konovalov wrote: >> diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S >> index cde127508e38..a17fefb0571b 100644 >> --- a/arch/arm64/kernel/entry.S >> +++ b/arch/arm64/kernel/entry.S >> @@ -172,6 +172,29 @@ alternative_else_nop_endif >> #endif >> .endm >> >> + /* Note: tmp should always be a callee-saved register */ > > Why callee-saved? Do you preserve it anywhere here? > Aargh, this is an old comment, I forgot to remove it after the last refactor. Thank you for pointing this out. >> + .macro mte_restore_gcr, el, tsk, tmp, tmp2 >> +#ifdef CONFIG_ARM64_MTE >> +alternative_if_not ARM64_MTE >> + b 1f >> +alternative_else_nop_endif >> + .if \el == 0 >> + ldr \tmp, [\tsk, #THREAD_GCR_EL1_USER] >> + .else >> + ldr_l \tmp, gcr_kernel_excl >> + .endif >> + /* >> + * Calculate and set the exclude mask preserving >> + * the RRND (bit[16]) setting. >> + */ >> + mrs_s \tmp2, SYS_GCR_EL1 >> + bfi \tmp2, \tmp, #0, #16 >> + msr_s SYS_GCR_EL1, \tmp2 >> + isb >> +1: >> +#endif >> + .endm >> + >> .macro kernel_entry, el, regsize = 64 >> .if \regsize == 32 >> mov w0, w0 // zero upper 32 bits of x0 >> @@ -209,6 +232,8 @@ alternative_else_nop_endif >> >> ptrauth_keys_install_kernel tsk, x20, x22, x23 >> >> + mte_restore_gcr 1, tsk, x22, x23 >> + >> scs_load tsk, x20 >> .else >> add x21, sp, #S_FRAME_SIZE >> @@ -386,6 +411,8 @@ alternative_else_nop_endif >> /* No kernel C function calls after this as user keys are set. */ >> ptrauth_keys_install_user tsk, x0, x1, x2 >> >> + mte_restore_gcr 0, tsk, x0, x1 >> + >> apply_ssbd 0, x0, x1 >> .endif >> >> @@ -957,6 +984,7 @@ SYM_FUNC_START(cpu_switch_to) >> mov sp, x9 >> msr sp_el0, x1 >> ptrauth_keys_install_kernel x1, x8, x9, x10 >> + mte_restore_gcr 1, x1, x8, x9 >> scs_save x0, x8 >> scs_load x1, x8 >> ret > > Since we set GCR_EL1 on exception entry and return, why is this needed? > We don't have a per-kernel thread GCR_EL1, it's global to all threads, > so I think cpu_switch_to() should not be touched. > I agree, we can remove it. We only require the kernel entry and the kernel exit ones. >> diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c >> index 7717ea9bc2a7..cfac7d02f032 100644 >> --- a/arch/arm64/kernel/mte.c >> +++ b/arch/arm64/kernel/mte.c >> @@ -18,10 +18,14 @@ >> >> #include <asm/barrier.h> >> #include <asm/cpufeature.h> >> +#include <asm/kasan.h> >> +#include <asm/kprobes.h> >> #include <asm/mte.h> >> #include <asm/ptrace.h> >> #include <asm/sysreg.h> >> >> +u64 gcr_kernel_excl __read_mostly; > > Could we make this __ro_after_init? > Yes, it makes sense, it should be updated only once through mte_init_tags(). Something to consider though here is that this might not be the right approach if in future we want to add stack tagging. In such a case we need to know the kernel exclude mask before any C code is executed. Initializing the mask via mte_init_tags() it is too late. I was thinking to add a compilation define instead of having gcr_kernel_excl in place. This might not work if the kernel excl mask is meant to change during the execution. Thoughts? >> + >> static void mte_sync_page_tags(struct page *page, pte_t *ptep, bool check_swap) >> { >> pte_t old_pte = READ_ONCE(*ptep); >> @@ -115,6 +119,13 @@ void * __must_check mte_set_mem_tag_range(void *addr, size_t size, u8 tag) >> return ptr; >> } >> >> +void mte_init_tags(u64 max_tag) >> +{ >> + u64 incl = ((1ULL << ((max_tag & MTE_TAG_MAX) + 1)) - 1); > > I'd rather use GENMASK here, it is more readable. > Agree, we can change it. -- Regards, Vincenzo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-08-27 15:10 UTC|newest] Thread overview: 252+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-08-14 17:26 [PATCH 00/35] kasan: add hardware tag-based mode for arm64 Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 01/35] kasan: KASAN_VMALLOC depends on KASAN_GENERIC Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 02/35] kasan: group vmalloc code Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 03/35] kasan: shadow declarations only for software modes Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-09-18 14:55 ` Marco Elver 2020-09-18 14:55 ` Marco Elver 2020-09-18 14:56 ` Andrey Konovalov 2020-09-18 14:56 ` Andrey Konovalov 2020-09-18 14:56 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 04/35] kasan: rename (un)poison_shadow to (un)poison_memory Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 05/35] kasan: rename KASAN_SHADOW_* to KASAN_GRANULE_* Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 06/35] kasan: only build init.c for software modes Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 07/35] kasan: split out shadow.c from common.c Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 08/35] kasan: rename generic/tags_report.c files Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 09/35] kasan: don't duplicate config dependencies Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 10/35] kasan: hide invalid free check implementation Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 11/35] kasan: decode stack frame only with KASAN_STACK_ENABLE Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 12/35] kasan, arm64: only init shadow for software modes Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 13/35] kasan, arm64: only use kasan_depth " Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 14/35] kasan: rename addr_has_shadow to addr_has_metadata Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 15/35] kasan: rename print_shadow_for_address to print_memory_metadata Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 16/35] kasan: kasan_non_canonical_hook only for software modes Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` [PATCH 17/35] kasan: rename SHADOW layout macros to META Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:26 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 18/35] kasan: separate metadata_fetch_row for each mode Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 19/35] kasan: don't allow SW_TAGS with ARM64_MTE Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 8:04 ` Catalin Marinas 2020-08-27 8:04 ` Catalin Marinas 2020-08-27 9:54 ` Vincenzo Frascino 2020-08-27 9:54 ` Vincenzo Frascino 2020-08-27 12:02 ` Andrey Konovalov 2020-08-27 12:02 ` Andrey Konovalov 2020-08-27 12:02 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 20/35] arm64: mte: Add in-kernel MTE helpers Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 9:38 ` Catalin Marinas 2020-08-27 9:38 ` Catalin Marinas 2020-08-27 10:31 ` Vincenzo Frascino 2020-08-27 10:31 ` Vincenzo Frascino 2020-08-27 11:10 ` Catalin Marinas 2020-08-27 11:10 ` Catalin Marinas 2020-08-27 11:24 ` Vincenzo Frascino 2020-08-27 11:24 ` Vincenzo Frascino 2020-08-27 12:46 ` Andrey Konovalov 2020-08-27 12:46 ` Andrey Konovalov 2020-08-27 12:46 ` Andrey Konovalov 2020-09-08 13:23 ` Andrey Konovalov 2020-09-08 13:23 ` Andrey Konovalov 2020-09-08 13:23 ` Andrey Konovalov 2020-09-08 14:50 ` Catalin Marinas 2020-09-08 14:50 ` Catalin Marinas 2020-08-14 17:27 ` [PATCH 21/35] arm64: mte: Add in-kernel tag fault handler Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 9:54 ` Catalin Marinas 2020-08-27 9:54 ` Catalin Marinas 2020-08-27 10:44 ` Vincenzo Frascino 2020-08-27 10:44 ` Vincenzo Frascino 2020-08-27 12:31 ` Andrey Konovalov 2020-08-27 12:31 ` Andrey Konovalov 2020-08-27 12:31 ` Andrey Konovalov 2020-08-27 13:10 ` Catalin Marinas 2020-08-27 13:10 ` Catalin Marinas 2020-08-27 13:34 ` Andrey Konovalov 2020-08-27 13:34 ` Andrey Konovalov 2020-08-27 13:34 ` Andrey Konovalov 2020-08-27 14:56 ` Catalin Marinas 2020-08-27 14:56 ` Catalin Marinas 2020-08-27 19:14 ` Evgenii Stepanov 2020-08-27 19:14 ` Evgenii Stepanov 2020-08-27 19:14 ` Evgenii Stepanov 2020-08-28 9:56 ` Catalin Marinas 2020-08-28 9:56 ` Catalin Marinas 2020-08-14 17:27 ` [PATCH 22/35] arm64: mte: Enable in-kernel MTE Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 10:01 ` Catalin Marinas 2020-08-27 10:01 ` Catalin Marinas 2020-08-27 10:46 ` Vincenzo Frascino 2020-08-27 10:46 ` Vincenzo Frascino 2020-09-08 14:39 ` Andrey Konovalov 2020-09-08 14:39 ` Andrey Konovalov 2020-09-08 14:39 ` Andrey Konovalov 2020-09-08 14:52 ` Catalin Marinas 2020-09-08 14:52 ` Catalin Marinas 2020-08-14 17:27 ` [PATCH 23/35] arm64: mte: Convert gcr_user into an exclude mask Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 24/35] arm64: mte: Switch GCR_EL1 in kernel entry and exit Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 10:38 ` Catalin Marinas 2020-08-27 10:38 ` Catalin Marinas 2020-08-27 10:56 ` Vincenzo Frascino [this message] 2020-08-27 10:56 ` Vincenzo Frascino 2020-08-27 12:16 ` Catalin Marinas 2020-08-27 12:16 ` Catalin Marinas 2020-09-08 14:02 ` Andrey Konovalov 2020-09-08 14:02 ` Andrey Konovalov 2020-09-08 14:02 ` Andrey Konovalov 2020-09-08 14:53 ` Andrey Konovalov 2020-09-08 14:53 ` Andrey Konovalov 2020-09-08 14:53 ` Andrey Konovalov 2020-09-08 15:39 ` Catalin Marinas 2020-09-08 15:39 ` Catalin Marinas 2020-09-08 19:41 ` Derrick McKee 2020-09-08 19:41 ` Derrick McKee 2020-09-08 19:41 ` Derrick McKee 2020-09-08 13:58 ` Andrey Konovalov 2020-09-08 13:58 ` Andrey Konovalov 2020-09-08 13:58 ` Andrey Konovalov 2020-09-08 15:16 ` Catalin Marinas 2020-09-08 15:16 ` Catalin Marinas 2020-08-14 17:27 ` [PATCH 25/35] kasan: introduce CONFIG_KASAN_HW_TAGS Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 11:33 ` Vincenzo Frascino 2020-08-27 11:33 ` Vincenzo Frascino 2020-08-27 12:22 ` Andrey Konovalov 2020-08-27 12:22 ` Andrey Konovalov 2020-08-27 12:22 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 26/35] kasan, arm64: Enable TBI EL1 Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 10:40 ` Catalin Marinas 2020-08-27 10:40 ` Catalin Marinas 2020-08-27 11:05 ` Vincenzo Frascino 2020-08-27 11:05 ` Vincenzo Frascino 2020-08-27 11:13 ` Catalin Marinas 2020-08-27 11:13 ` Catalin Marinas 2020-08-27 11:17 ` Vincenzo Frascino 2020-08-27 11:17 ` Vincenzo Frascino 2020-08-27 12:43 ` Andrey Konovalov 2020-08-27 12:43 ` Andrey Konovalov 2020-08-27 12:43 ` Andrey Konovalov 2020-08-27 13:45 ` Vincenzo Frascino 2020-08-27 13:45 ` Vincenzo Frascino 2020-08-27 14:36 ` Andrey Konovalov 2020-08-27 14:36 ` Andrey Konovalov 2020-08-27 14:36 ` Andrey Konovalov 2020-09-08 13:18 ` Andrey Konovalov 2020-09-08 13:18 ` Andrey Konovalov 2020-09-08 13:18 ` Andrey Konovalov 2020-09-08 14:06 ` Catalin Marinas 2020-09-08 14:06 ` Catalin Marinas 2020-09-08 14:12 ` Andrey Konovalov 2020-09-08 14:12 ` Andrey Konovalov 2020-09-08 14:12 ` Andrey Konovalov 2020-09-08 14:41 ` Catalin Marinas 2020-09-08 14:41 ` Catalin Marinas 2020-08-14 17:27 ` [PATCH 27/35] kasan, arm64: align allocations for HW_TAGS Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 28/35] kasan: define KASAN_GRANULE_SIZE " Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 10:41 ` Catalin Marinas 2020-08-27 10:41 ` Catalin Marinas 2020-08-27 11:07 ` Vincenzo Frascino 2020-08-27 11:07 ` Vincenzo Frascino 2020-08-27 12:05 ` Andrey Konovalov 2020-08-27 12:05 ` Andrey Konovalov 2020-08-27 12:05 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 29/35] kasan, x86, s390: update undef CONFIG_KASAN Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 30/35] kasan, arm64: expand CONFIG_KASAN checks Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 31/35] kasan, arm64: implement HW_TAGS runtime Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 10:45 ` Catalin Marinas 2020-08-27 10:45 ` Catalin Marinas 2020-08-27 11:35 ` Vincenzo Frascino 2020-08-27 11:35 ` Vincenzo Frascino 2020-08-27 12:37 ` Andrey Konovalov 2020-08-27 12:37 ` Andrey Konovalov 2020-08-27 12:37 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 32/35] kasan, arm64: print report from tag fault handler Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-27 10:48 ` Catalin Marinas 2020-08-27 10:48 ` Catalin Marinas 2020-08-27 12:11 ` Vincenzo Frascino 2020-08-27 12:11 ` Vincenzo Frascino 2020-08-27 12:34 ` Andrey Konovalov 2020-08-27 12:34 ` Andrey Konovalov 2020-08-27 12:34 ` Andrey Konovalov 2020-08-27 14:21 ` Catalin Marinas 2020-08-27 14:21 ` Catalin Marinas 2020-08-14 17:27 ` [PATCH 33/35] kasan, slub: reset tags when accessing metadata Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 34/35] kasan, arm64: enable CONFIG_KASAN_HW_TAGS Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` [PATCH 35/35] kasan: add documentation for hardware tag-based mode Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-14 17:27 ` Andrey Konovalov 2020-08-28 11:12 ` Marco Elver 2020-08-28 11:12 ` Marco Elver 2020-08-28 12:28 ` Andrey Konovalov 2020-08-28 12:28 ` Andrey Konovalov 2020-08-28 12:28 ` Andrey Konovalov 2020-09-14 19:06 ` [PATCH 00/35] kasan: add hardware tag-based mode for arm64 Derrick McKee 2020-09-14 20:04 ` Andrey Konovalov 2020-09-14 21:36 ` Derrick McKee 2020-09-14 22:41 ` Derrick McKee 2020-09-14 22:50 ` Andrey Konovalov 2020-09-15 9:46 ` Derrick McKee 2020-09-15 17:51 ` Derrick McKee
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