From: Charlie Jenkins <charlie@rivosinc.com> To: Deepak Gupta <debug@rivosinc.com> Cc: paul.walmsley@sifive.com, rick.p.edgecombe@intel.com, broonie@kernel.org, Szabolcs.Nagy@arm.com, kito.cheng@sifive.com, keescook@chromium.org, ajones@ventanamicro.com, conor.dooley@microchip.com, cleger@rivosinc.com, atishp@atishpatra.org, alex@ghiti.fr, bjorn@rivosinc.com, alexghiti@rivosinc.com, samuel.holland@sifive.com, conor@kernel.org, linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, corbet@lwn.net, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, oleg@redhat.com, akpm@linux-foundation.org, arnd@arndb.de, ebiederm@xmission.com, Liam.Howlett@oracle.com, vbabka@suse.cz, lstoakes@gmail.com, shuah@kernel.org, brauner@kernel.org, andy.chiu@sifive.com, jerry.shih@sifive.com, hankuan.chen@sifive.com, greentime.hu@sifive.com, evan@rivosinc.com, xiao.w.wang@intel.com, apatel@ventanamicro.com, mchitale@ventanamicro.com, dbarboza@ventanamicro.com, sameo@rivosinc.com, shikemeng@huaweicloud.com, willy@infradead.org, vincent.chen@sifive.com, guoren@kernel.org, samitolvanen@google.com, songshuaishuai@tinylab.org, gerg@kernel.org, heiko@sntech.de, bhe@redhat.com, jeeheng.sia@starfivetech.com, cyy@cyyself.name, maskray@google.com, ancientmodern4@gmail.com, mathis.salmen@matsal.de, cuiyunhui@bytedance.com, bgray@linux.ibm.com, mpe@ellerman.id.au, baruch@tkos.co.il, alx@kernel.org, david@redhat.com, catalin.marinas@arm.com, revest@chromium.org, josh@joshtriplett.org, shr@devkernel.io, deller@gmx.de, omosnace@redhat.com, ojeda@kernel.org, jhubbard@nvidia.com Subject: Re: [PATCH v3 17/29] prctl: arch-agnostic prctl for indirect branch tracking Date: Fri, 10 May 2024 16:29:19 -0700 [thread overview] Message-ID: <Zj6tzxWFj4H+250p@ghost> (raw) In-Reply-To: <20240403234054.2020347-18-debug@rivosinc.com> On Wed, Apr 03, 2024 at 04:35:05PM -0700, Deepak Gupta wrote: > Three architectures (x86, aarch64, riscv) have support for indirect branch > tracking feature in a very similar fashion. On a very high level, indirect > branch tracking is a CPU feature where CPU tracks branches which uses > memory operand to perform control transfer in program. As part of this > tracking on indirect branches, CPU goes in a state where it expects a > landing pad instr on target and if not found then CPU raises some fault > (architecture dependent) > > x86 landing pad instr - `ENDBRANCH` > aarch64 landing pad instr - `BTI` > riscv landing instr - `lpad` > > Given that three major arches have support for indirect branch tracking, > This patch makes `prctl` for indirect branch tracking arch agnostic. > > To allow userspace to enable this feature for itself, following prtcls are > defined: > - PR_GET_INDIR_BR_LP_STATUS: Gets current configured status for indirect > branch tracking. > - PR_SET_INDIR_BR_LP_STATUS: Sets a configuration for indirect branch > tracking. > Following status options are allowed > - PR_INDIR_BR_LP_ENABLE: Enables indirect branch tracking on user > thread. > - PR_INDIR_BR_LP_DISABLE; Disables indirect branch tracking on user > thread. > - PR_LOCK_INDIR_BR_LP_STATUS: Locks configured status for indirect branch > tracking for user thread. > > Signed-off-by: Deepak Gupta <debug@rivosinc.com> > --- > include/uapi/linux/prctl.h | 27 +++++++++++++++++++++++++++ > kernel/sys.c | 30 ++++++++++++++++++++++++++++++ > 2 files changed, 57 insertions(+) > > diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h > index 3c66ed8f46d8..b7a8212a068e 100644 > --- a/include/uapi/linux/prctl.h > +++ b/include/uapi/linux/prctl.h > @@ -328,4 +328,31 @@ struct prctl_mm_map { > */ > #define PR_LOCK_SHADOW_STACK_STATUS 73 > > +/* > + * Get the current indirect branch tracking configuration for the current > + * thread, this will be the value configured via PR_SET_INDIR_BR_LP_STATUS. > + */ > +#define PR_GET_INDIR_BR_LP_STATUS 74 > + > +/* > + * Set the indirect branch tracking configuration. PR_INDIR_BR_LP_ENABLE will > + * enable cpu feature for user thread, to track all indirect branches and ensure > + * they land on arch defined landing pad instruction. > + * x86 - If enabled, an indirect branch must land on `ENDBRANCH` instruction. > + * arch64 - If enabled, an indirect branch must land on `BTI` instruction. > + * riscv - If enabled, an indirect branch must land on `lpad` instruction. > + * PR_INDIR_BR_LP_DISABLE will disable feature for user thread and indirect > + * branches will no more be tracked by cpu to land on arch defined landing pad > + * instruction. > + */ > +#define PR_SET_INDIR_BR_LP_STATUS 75 > +# define PR_INDIR_BR_LP_ENABLE (1UL << 0) > + > +/* > + * Prevent further changes to the specified indirect branch tracking > + * configuration. All bits may be locked via this call, including > + * undefined bits. > + */ > +#define PR_LOCK_INDIR_BR_LP_STATUS 76 > + > #endif /* _LINUX_PRCTL_H */ > diff --git a/kernel/sys.c b/kernel/sys.c > index 242e9f147791..c770060c3f06 100644 > --- a/kernel/sys.c > +++ b/kernel/sys.c > @@ -2330,6 +2330,21 @@ int __weak arch_lock_shadow_stack_status(struct task_struct *t, unsigned long st > return -EINVAL; > } > > +int __weak arch_get_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) > +{ > + return -EINVAL; > +} > + > +int __weak arch_set_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) > +{ > + return -EINVAL; > +} > + > +int __weak arch_lock_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) > +{ > + return -EINVAL; > +} > + These weak references each cause a warning: kernel/sys.c:2333:12: warning: no previous prototype for 'arch_get_indir_br_lp_status' [-Wmissing-prototypes] 2333 | int __weak arch_get_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sys.c:2338:12: warning: no previous prototype for 'arch_set_indir_br_lp_status' [-Wmissing-prototypes] 2338 | int __weak arch_set_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sys.c:2343:12: warning: no previous prototype for 'arch_lock_indir_br_lp_status' [-Wmissing-prototypes] 2343 | int __weak arch_lock_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) Can the definitions be added to include/linux/mm.h alongside the *_shadow_stack_status() definitions? - Charlie > #define PR_IO_FLUSHER (PF_MEMALLOC_NOIO | PF_LOCAL_THROTTLE) > > #ifdef CONFIG_ANON_VMA_NAME > @@ -2787,6 +2802,21 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, > return -EINVAL; > error = arch_lock_shadow_stack_status(me, arg2); > break; > + case PR_GET_INDIR_BR_LP_STATUS: > + if (arg3 || arg4 || arg5) > + return -EINVAL; > + error = arch_get_indir_br_lp_status(me, (unsigned long __user *) arg2); > + break; > + case PR_SET_INDIR_BR_LP_STATUS: > + if (arg3 || arg4 || arg5) > + return -EINVAL; > + error = arch_set_indir_br_lp_status(me, (unsigned long __user *) arg2); > + break; > + case PR_LOCK_INDIR_BR_LP_STATUS: > + if (arg3 || arg4 || arg5) > + return -EINVAL; > + error = arch_lock_indir_br_lp_status(me, (unsigned long __user *) arg2); > + break; > default: > error = -EINVAL; > break; > -- > 2.43.2 >
WARNING: multiple messages have this Message-ID (diff)
From: Charlie Jenkins <charlie@rivosinc.com> To: Deepak Gupta <debug@rivosinc.com> Cc: paul.walmsley@sifive.com, rick.p.edgecombe@intel.com, broonie@kernel.org, Szabolcs.Nagy@arm.com, kito.cheng@sifive.com, keescook@chromium.org, ajones@ventanamicro.com, conor.dooley@microchip.com, cleger@rivosinc.com, atishp@atishpatra.org, alex@ghiti.fr, bjorn@rivosinc.com, alexghiti@rivosinc.com, samuel.holland@sifive.com, conor@kernel.org, linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, corbet@lwn.net, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, oleg@redhat.com, akpm@linux-foundation.org, arnd@arndb.de, ebiederm@xmission.com, Liam.Howlett@oracle.com, vbabka@suse.cz, lstoakes@gmail.com, shuah@kernel.org, brauner@kernel.org, andy.chiu@sifive.com, jerry.shih@sifive.com, hankuan.chen@sifive.com, greentime.hu@sifive.com, evan@rivosinc.com, xiao.w.wang@intel.com, apatel@ventanamicro.com, mchitale@ventanamicro.com, dbarboza@ventanamicro.com, sameo@rivosinc.com, shikemeng@huaweicloud.com, willy@infradead.org, vincent.chen@sifive.com, guoren@kernel.org, samitolvanen@google.com, songshuaishuai@tinylab.org, gerg@kernel.org, heiko@sntech.de, bhe@redhat.com, jeeheng.sia@starfivetech.com, cyy@cyyself.name, maskray@google.com, ancientmodern4@gmail.com, mathis.salmen@matsal.de, cuiyunhui@bytedance.com, bgray@linux.ibm.com, mpe@ellerman.id.au, baruch@tkos.co.il, alx@kernel.org, david@redhat.com, catalin.marinas@arm.com, revest@chromium.org, josh@joshtriplett.org, shr@devkernel.io, deller@gmx.de, omosnace@redhat.com, ojeda@kernel.org, jhubbard@nvidia.com Subject: Re: [PATCH v3 17/29] prctl: arch-agnostic prctl for indirect branch tracking Date: Fri, 10 May 2024 16:29:19 -0700 [thread overview] Message-ID: <Zj6tzxWFj4H+250p@ghost> (raw) In-Reply-To: <20240403234054.2020347-18-debug@rivosinc.com> On Wed, Apr 03, 2024 at 04:35:05PM -0700, Deepak Gupta wrote: > Three architectures (x86, aarch64, riscv) have support for indirect branch > tracking feature in a very similar fashion. On a very high level, indirect > branch tracking is a CPU feature where CPU tracks branches which uses > memory operand to perform control transfer in program. As part of this > tracking on indirect branches, CPU goes in a state where it expects a > landing pad instr on target and if not found then CPU raises some fault > (architecture dependent) > > x86 landing pad instr - `ENDBRANCH` > aarch64 landing pad instr - `BTI` > riscv landing instr - `lpad` > > Given that three major arches have support for indirect branch tracking, > This patch makes `prctl` for indirect branch tracking arch agnostic. > > To allow userspace to enable this feature for itself, following prtcls are > defined: > - PR_GET_INDIR_BR_LP_STATUS: Gets current configured status for indirect > branch tracking. > - PR_SET_INDIR_BR_LP_STATUS: Sets a configuration for indirect branch > tracking. > Following status options are allowed > - PR_INDIR_BR_LP_ENABLE: Enables indirect branch tracking on user > thread. > - PR_INDIR_BR_LP_DISABLE; Disables indirect branch tracking on user > thread. > - PR_LOCK_INDIR_BR_LP_STATUS: Locks configured status for indirect branch > tracking for user thread. > > Signed-off-by: Deepak Gupta <debug@rivosinc.com> > --- > include/uapi/linux/prctl.h | 27 +++++++++++++++++++++++++++ > kernel/sys.c | 30 ++++++++++++++++++++++++++++++ > 2 files changed, 57 insertions(+) > > diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h > index 3c66ed8f46d8..b7a8212a068e 100644 > --- a/include/uapi/linux/prctl.h > +++ b/include/uapi/linux/prctl.h > @@ -328,4 +328,31 @@ struct prctl_mm_map { > */ > #define PR_LOCK_SHADOW_STACK_STATUS 73 > > +/* > + * Get the current indirect branch tracking configuration for the current > + * thread, this will be the value configured via PR_SET_INDIR_BR_LP_STATUS. > + */ > +#define PR_GET_INDIR_BR_LP_STATUS 74 > + > +/* > + * Set the indirect branch tracking configuration. PR_INDIR_BR_LP_ENABLE will > + * enable cpu feature for user thread, to track all indirect branches and ensure > + * they land on arch defined landing pad instruction. > + * x86 - If enabled, an indirect branch must land on `ENDBRANCH` instruction. > + * arch64 - If enabled, an indirect branch must land on `BTI` instruction. > + * riscv - If enabled, an indirect branch must land on `lpad` instruction. > + * PR_INDIR_BR_LP_DISABLE will disable feature for user thread and indirect > + * branches will no more be tracked by cpu to land on arch defined landing pad > + * instruction. > + */ > +#define PR_SET_INDIR_BR_LP_STATUS 75 > +# define PR_INDIR_BR_LP_ENABLE (1UL << 0) > + > +/* > + * Prevent further changes to the specified indirect branch tracking > + * configuration. All bits may be locked via this call, including > + * undefined bits. > + */ > +#define PR_LOCK_INDIR_BR_LP_STATUS 76 > + > #endif /* _LINUX_PRCTL_H */ > diff --git a/kernel/sys.c b/kernel/sys.c > index 242e9f147791..c770060c3f06 100644 > --- a/kernel/sys.c > +++ b/kernel/sys.c > @@ -2330,6 +2330,21 @@ int __weak arch_lock_shadow_stack_status(struct task_struct *t, unsigned long st > return -EINVAL; > } > > +int __weak arch_get_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) > +{ > + return -EINVAL; > +} > + > +int __weak arch_set_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) > +{ > + return -EINVAL; > +} > + > +int __weak arch_lock_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) > +{ > + return -EINVAL; > +} > + These weak references each cause a warning: kernel/sys.c:2333:12: warning: no previous prototype for 'arch_get_indir_br_lp_status' [-Wmissing-prototypes] 2333 | int __weak arch_get_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sys.c:2338:12: warning: no previous prototype for 'arch_set_indir_br_lp_status' [-Wmissing-prototypes] 2338 | int __weak arch_set_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sys.c:2343:12: warning: no previous prototype for 'arch_lock_indir_br_lp_status' [-Wmissing-prototypes] 2343 | int __weak arch_lock_indir_br_lp_status(struct task_struct *t, unsigned long __user *status) Can the definitions be added to include/linux/mm.h alongside the *_shadow_stack_status() definitions? - Charlie > #define PR_IO_FLUSHER (PF_MEMALLOC_NOIO | PF_LOCAL_THROTTLE) > > #ifdef CONFIG_ANON_VMA_NAME > @@ -2787,6 +2802,21 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, > return -EINVAL; > error = arch_lock_shadow_stack_status(me, arg2); > break; > + case PR_GET_INDIR_BR_LP_STATUS: > + if (arg3 || arg4 || arg5) > + return -EINVAL; > + error = arch_get_indir_br_lp_status(me, (unsigned long __user *) arg2); > + break; > + case PR_SET_INDIR_BR_LP_STATUS: > + if (arg3 || arg4 || arg5) > + return -EINVAL; > + error = arch_set_indir_br_lp_status(me, (unsigned long __user *) arg2); > + break; > + case PR_LOCK_INDIR_BR_LP_STATUS: > + if (arg3 || arg4 || arg5) > + return -EINVAL; > + error = arch_lock_indir_br_lp_status(me, (unsigned long __user *) arg2); > + break; > default: > error = -EINVAL; > break; > -- > 2.43.2 > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2024-05-10 23:29 UTC|newest] Thread overview: 164+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-03 23:34 [PATCH v3 00/29] riscv control-flow integrity for usermode Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 01/29] riscv: envcfg save and restore on task switching Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-09 0:10 ` Charlie Jenkins 2024-05-09 0:10 ` Charlie Jenkins 2024-05-09 19:00 ` Deepak Gupta 2024-05-09 19:00 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 02/29] riscv: define default value for envcfg for task Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-10 22:33 ` Charlie Jenkins 2024-05-10 22:33 ` Charlie Jenkins 2024-05-13 18:33 ` Deepak Gupta 2024-05-13 18:33 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 03/29] riscv/Kconfig: enable HAVE_EXIT_THREAD for riscv Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-10 22:36 ` Charlie Jenkins 2024-05-10 22:36 ` Charlie Jenkins 2024-04-03 23:34 ` [PATCH v3 04/29] riscv: zicfilp / zicfiss in dt-bindings (extensions.yaml) Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-04-10 11:58 ` Rob Herring 2024-04-10 11:58 ` Rob Herring 2024-04-10 21:37 ` Deepak Gupta 2024-04-10 21:37 ` Deepak Gupta 2024-04-15 19:41 ` Rob Herring 2024-04-15 19:41 ` Rob Herring 2024-04-16 15:44 ` Deepak Gupta 2024-04-16 15:44 ` Deepak Gupta 2024-05-09 18:14 ` Conor Dooley 2024-05-09 18:14 ` Conor Dooley 2024-05-09 18:46 ` Deepak Gupta 2024-05-09 18:46 ` Deepak Gupta 2024-05-09 20:32 ` Conor Dooley 2024-05-09 20:32 ` Conor Dooley 2024-05-09 23:26 ` Deepak Gupta 2024-05-09 23:26 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 05/29] riscv: zicfiss / zicfilp enumeration Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-09 0:00 ` Andy Chiu 2024-05-09 0:00 ` Andy Chiu 2024-05-09 0:07 ` Charlie Jenkins 2024-05-09 0:07 ` Charlie Jenkins 2024-04-03 23:34 ` [PATCH v3 06/29] riscv: zicfiss / zicfilp extension csr and bit definitions Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-10 22:37 ` Charlie Jenkins 2024-05-10 22:37 ` Charlie Jenkins 2024-04-03 23:34 ` [PATCH v3 07/29] riscv: usercfi state for task and save/restore of CSR_SSP on trap entry/exit Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-10 22:51 ` Charlie Jenkins 2024-05-10 22:51 ` Charlie Jenkins 2024-04-03 23:34 ` [PATCH v3 08/29] mm: Define VM_SHADOW_STACK for RISC-V Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-04-04 18:58 ` David Hildenbrand 2024-04-04 18:58 ` David Hildenbrand 2024-04-04 19:04 ` Mark Brown 2024-04-04 19:04 ` Mark Brown 2024-04-04 19:15 ` David Hildenbrand 2024-04-04 19:15 ` David Hildenbrand 2024-04-04 19:21 ` Deepak Gupta 2024-04-04 19:21 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 09/29] mm: abstract shadow stack vma behind `vma_is_shadow_stack` Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-04-04 19:02 ` David Hildenbrand 2024-04-04 19:02 ` David Hildenbrand 2024-04-04 21:39 ` Deepak Gupta 2024-04-04 21:39 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 10/29] riscv/mm : ensure PROT_WRITE leads to VM_READ | VM_WRITE Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-10 21:02 ` Charlie Jenkins 2024-05-10 21:02 ` Charlie Jenkins 2024-05-13 17:47 ` Deepak Gupta 2024-05-13 17:47 ` Deepak Gupta 2024-05-13 18:36 ` Charlie Jenkins 2024-05-13 18:36 ` Charlie Jenkins 2024-05-13 18:41 ` Deepak Gupta 2024-05-13 18:41 ` Deepak Gupta 2024-05-13 21:26 ` Charlie Jenkins 2024-05-13 21:26 ` Charlie Jenkins 2024-05-12 16:24 ` Alexandre Ghiti 2024-05-12 16:24 ` Alexandre Ghiti 2024-05-13 18:29 ` Deepak Gupta 2024-05-13 18:29 ` Deepak Gupta 2024-04-03 23:34 ` [PATCH v3 11/29] riscv mm: manufacture shadow stack pte Deepak Gupta 2024-04-03 23:34 ` Deepak Gupta 2024-05-12 16:26 ` Alexandre Ghiti 2024-05-12 16:26 ` Alexandre Ghiti 2024-04-03 23:35 ` [PATCH v3 12/29] riscv mmu: teach pte_mkwrite to manufacture shadow stack PTEs Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-12 16:28 ` Alexandre Ghiti 2024-05-12 16:28 ` Alexandre Ghiti 2024-05-13 17:33 ` Deepak Gupta 2024-05-13 17:33 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 13/29] riscv mmu: write protect and shadow stack Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-12 16:31 ` Alexandre Ghiti 2024-05-12 16:31 ` Alexandre Ghiti 2024-05-13 17:32 ` Deepak Gupta 2024-05-13 17:32 ` Deepak Gupta 2024-05-23 14:59 ` Alexandre Ghiti 2024-05-23 14:59 ` Alexandre Ghiti 2024-05-24 7:16 ` Deepak Gupta 2024-05-24 7:16 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 14/29] riscv/mm: Implement map_shadow_stack() syscall Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-12 16:50 ` Alexandre Ghiti 2024-05-12 16:50 ` Alexandre Ghiti 2024-05-13 17:25 ` Deepak Gupta 2024-05-13 17:25 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 15/29] riscv/shstk: If needed allocate a new shadow stack on clone Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-12 17:05 ` Alexandre Ghiti 2024-05-12 17:05 ` Alexandre Ghiti 2024-05-13 17:10 ` Deepak Gupta 2024-05-13 17:10 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 16/29] prctl: arch-agnostic prctl for shadow stack Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 17/29] prctl: arch-agnostic prctl for indirect branch tracking Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-10 23:29 ` Charlie Jenkins [this message] 2024-05-10 23:29 ` Charlie Jenkins 2024-05-13 18:31 ` Deepak Gupta 2024-05-13 18:31 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 18/29] riscv: Implements arch agnostic shadow stack prctls Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 19/29] riscv: Implements arch agnostic indirect branch tracking prctls Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 20/29] riscv/kernel: update __show_regs to print shadow stack register Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-12 17:10 ` Alexandre Ghiti 2024-05-12 17:10 ` Alexandre Ghiti 2024-04-03 23:35 ` [PATCH v3 21/29] riscv/traps: Introduce software check exception Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 22/29] riscv sigcontext: adding cfi state field in sigcontext Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-24 9:46 ` Andy Chiu 2024-05-24 9:46 ` Andy Chiu 2024-05-24 19:11 ` Deepak Gupta 2024-05-24 19:11 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 23/29] riscv signal: Save and restore of shadow stack for signal Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 24/29] riscv/ptrace: riscv cfi status and state via ptrace and in core files Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 25/29] riscv/hwprobe: zicfilp / zicfiss enumeration in hwprobe Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 26/29] riscv: create a config for shadow stack and landing pad instr support Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 27/29] riscv: Documentation for landing pad / indirect branch tracking Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-10 20:30 ` Charlie Jenkins 2024-05-10 20:30 ` Charlie Jenkins 2024-05-13 17:07 ` Deepak Gupta 2024-05-13 17:07 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 28/29] riscv: Documentation for shadow stack on riscv Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-04-03 23:35 ` [PATCH v3 29/29] kselftest/riscv: kselftest for user mode cfi Deepak Gupta 2024-04-03 23:35 ` Deepak Gupta 2024-05-09 18:21 ` Charlie Jenkins 2024-05-09 18:21 ` Charlie Jenkins 2024-05-09 19:16 ` Deepak Gupta 2024-05-09 19:16 ` Deepak Gupta 2024-05-10 1:20 ` Charlie Jenkins 2024-05-10 1:20 ` Charlie Jenkins 2024-05-09 0:33 ` [PATCH v3 00/29] riscv control-flow integrity for usermode Charlie Jenkins 2024-05-09 0:33 ` Charlie Jenkins
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