From: Catalin Marinas <catalin.marinas@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
David Brazdil <dbrazdil@google.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Ard Biesheuvel <ardb@kernel.org>,
Jing Zhang <jingzhangos@google.com>,
Ajay Patil <pajay@qti.qualcomm.com>,
Prasad Sodagudi <psodagud@codeaurora.org>,
Srinivas Ramana <sramana@codeaurora.org>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
kernel-team@android.com
Subject: Re: [PATCH v4 10/21] arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding()
Date: Fri, 22 Jan 2021 18:53:45 +0000 [thread overview]
Message-ID: <20210122185344.GH8567@gaia> (raw)
In-Reply-To: <20210118094533.2874082-11-maz@kernel.org>
On Mon, Jan 18, 2021 at 09:45:22AM +0000, Marc Zyngier wrote:
> __read_sysreg_by_encoding() is used by a bunch of cpufeature helpers,
> which should take the feature override into account. Let's do that.
>
> For a good measure (and because we are likely to need to further
> down the line), make this helper available to the rest of the
> non-modular kernel.
>
> Code that needs to know the *real* features of a CPU can still
> use read_sysreg_s(), and find the bare, ugly truth.
>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/include/asm/cpufeature.h | 1 +
> arch/arm64/kernel/cpufeature.c | 15 +++++++++++++--
> 2 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
> index 465d2cb63bfc..fe0130d6c0ff 100644
> --- a/arch/arm64/include/asm/cpufeature.h
> +++ b/arch/arm64/include/asm/cpufeature.h
> @@ -602,6 +602,7 @@ void __init setup_cpu_features(void);
> void check_local_cpu_capabilities(void);
>
> u64 read_sanitised_ftr_reg(u32 id);
> +u64 __read_sysreg_by_encoding(u32 sys_id);
>
> static inline bool cpu_supports_mixed_endian_el0(void)
> {
> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> index aaa075c6f029..48a011935d8c 100644
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@ -1149,14 +1149,17 @@ u64 read_sanitised_ftr_reg(u32 id)
> EXPORT_SYMBOL_GPL(read_sanitised_ftr_reg);
>
> #define read_sysreg_case(r) \
> - case r: return read_sysreg_s(r)
> + case r: val = read_sysreg_s(r); break;
>
> /*
> * __read_sysreg_by_encoding() - Used by a STARTING cpu before cpuinfo is populated.
> * Read the system register on the current CPU
> */
> -static u64 __read_sysreg_by_encoding(u32 sys_id)
> +u64 __read_sysreg_by_encoding(u32 sys_id)
> {
> + struct arm64_ftr_reg *regp;
> + u64 val;
> +
> switch (sys_id) {
> read_sysreg_case(SYS_ID_PFR0_EL1);
> read_sysreg_case(SYS_ID_PFR1_EL1);
> @@ -1199,6 +1202,14 @@ static u64 __read_sysreg_by_encoding(u32 sys_id)
> BUG();
> return 0;
> }
> +
> + regp = get_arm64_ftr_reg(sys_id);
> + if (regp && regp->override_mask && regp->override_val) {
> + val &= ~*regp->override_mask;
> + val |= (*regp->override_val & *regp->override_mask);
> + }
> +
> + return val;
Ah, now the previous patch makes more sense. I don't particularly like
this but I can't tell how to work around it. I was hoping that the
overriding feature behaves more like a secondary CPU that limits all the
overridden features. However, this approach would fail for FTR_EXACT
cases (like PAC, though I wonder whether it fails already with your
previous patch since the boot CPU value won't match the override, hence
dropping to the safe one).
--
Catalin
WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: Prasad Sodagudi <psodagud@codeaurora.org>,
Srinivas Ramana <sramana@codeaurora.org>,
linux-kernel@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>,
Ajay Patil <pajay@qti.qualcomm.com>,
kernel-team@android.com, Will Deacon <will@kernel.org>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 10/21] arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding()
Date: Fri, 22 Jan 2021 18:53:45 +0000 [thread overview]
Message-ID: <20210122185344.GH8567@gaia> (raw)
In-Reply-To: <20210118094533.2874082-11-maz@kernel.org>
On Mon, Jan 18, 2021 at 09:45:22AM +0000, Marc Zyngier wrote:
> __read_sysreg_by_encoding() is used by a bunch of cpufeature helpers,
> which should take the feature override into account. Let's do that.
>
> For a good measure (and because we are likely to need to further
> down the line), make this helper available to the rest of the
> non-modular kernel.
>
> Code that needs to know the *real* features of a CPU can still
> use read_sysreg_s(), and find the bare, ugly truth.
>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/include/asm/cpufeature.h | 1 +
> arch/arm64/kernel/cpufeature.c | 15 +++++++++++++--
> 2 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
> index 465d2cb63bfc..fe0130d6c0ff 100644
> --- a/arch/arm64/include/asm/cpufeature.h
> +++ b/arch/arm64/include/asm/cpufeature.h
> @@ -602,6 +602,7 @@ void __init setup_cpu_features(void);
> void check_local_cpu_capabilities(void);
>
> u64 read_sanitised_ftr_reg(u32 id);
> +u64 __read_sysreg_by_encoding(u32 sys_id);
>
> static inline bool cpu_supports_mixed_endian_el0(void)
> {
> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> index aaa075c6f029..48a011935d8c 100644
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@ -1149,14 +1149,17 @@ u64 read_sanitised_ftr_reg(u32 id)
> EXPORT_SYMBOL_GPL(read_sanitised_ftr_reg);
>
> #define read_sysreg_case(r) \
> - case r: return read_sysreg_s(r)
> + case r: val = read_sysreg_s(r); break;
>
> /*
> * __read_sysreg_by_encoding() - Used by a STARTING cpu before cpuinfo is populated.
> * Read the system register on the current CPU
> */
> -static u64 __read_sysreg_by_encoding(u32 sys_id)
> +u64 __read_sysreg_by_encoding(u32 sys_id)
> {
> + struct arm64_ftr_reg *regp;
> + u64 val;
> +
> switch (sys_id) {
> read_sysreg_case(SYS_ID_PFR0_EL1);
> read_sysreg_case(SYS_ID_PFR1_EL1);
> @@ -1199,6 +1202,14 @@ static u64 __read_sysreg_by_encoding(u32 sys_id)
> BUG();
> return 0;
> }
> +
> + regp = get_arm64_ftr_reg(sys_id);
> + if (regp && regp->override_mask && regp->override_val) {
> + val &= ~*regp->override_mask;
> + val |= (*regp->override_val & *regp->override_mask);
> + }
> +
> + return val;
Ah, now the previous patch makes more sense. I don't particularly like
this but I can't tell how to work around it. I was hoping that the
overriding feature behaves more like a secondary CPU that limits all the
overridden features. However, this approach would fail for FTR_EXACT
cases (like PAC, though I wonder whether it fails already with your
previous patch since the boot CPU value won't match the override, hence
dropping to the safe one).
--
Catalin
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Marc Zyngier <maz@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Jing Zhang <jingzhangos@google.com>,
Prasad Sodagudi <psodagud@codeaurora.org>,
Srinivas Ramana <sramana@codeaurora.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
linux-kernel@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Ajay Patil <pajay@qti.qualcomm.com>,
kernel-team@android.com, David Brazdil <dbrazdil@google.com>,
Will Deacon <will@kernel.org>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 10/21] arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding()
Date: Fri, 22 Jan 2021 18:53:45 +0000 [thread overview]
Message-ID: <20210122185344.GH8567@gaia> (raw)
In-Reply-To: <20210118094533.2874082-11-maz@kernel.org>
On Mon, Jan 18, 2021 at 09:45:22AM +0000, Marc Zyngier wrote:
> __read_sysreg_by_encoding() is used by a bunch of cpufeature helpers,
> which should take the feature override into account. Let's do that.
>
> For a good measure (and because we are likely to need to further
> down the line), make this helper available to the rest of the
> non-modular kernel.
>
> Code that needs to know the *real* features of a CPU can still
> use read_sysreg_s(), and find the bare, ugly truth.
>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/include/asm/cpufeature.h | 1 +
> arch/arm64/kernel/cpufeature.c | 15 +++++++++++++--
> 2 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
> index 465d2cb63bfc..fe0130d6c0ff 100644
> --- a/arch/arm64/include/asm/cpufeature.h
> +++ b/arch/arm64/include/asm/cpufeature.h
> @@ -602,6 +602,7 @@ void __init setup_cpu_features(void);
> void check_local_cpu_capabilities(void);
>
> u64 read_sanitised_ftr_reg(u32 id);
> +u64 __read_sysreg_by_encoding(u32 sys_id);
>
> static inline bool cpu_supports_mixed_endian_el0(void)
> {
> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> index aaa075c6f029..48a011935d8c 100644
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@ -1149,14 +1149,17 @@ u64 read_sanitised_ftr_reg(u32 id)
> EXPORT_SYMBOL_GPL(read_sanitised_ftr_reg);
>
> #define read_sysreg_case(r) \
> - case r: return read_sysreg_s(r)
> + case r: val = read_sysreg_s(r); break;
>
> /*
> * __read_sysreg_by_encoding() - Used by a STARTING cpu before cpuinfo is populated.
> * Read the system register on the current CPU
> */
> -static u64 __read_sysreg_by_encoding(u32 sys_id)
> +u64 __read_sysreg_by_encoding(u32 sys_id)
> {
> + struct arm64_ftr_reg *regp;
> + u64 val;
> +
> switch (sys_id) {
> read_sysreg_case(SYS_ID_PFR0_EL1);
> read_sysreg_case(SYS_ID_PFR1_EL1);
> @@ -1199,6 +1202,14 @@ static u64 __read_sysreg_by_encoding(u32 sys_id)
> BUG();
> return 0;
> }
> +
> + regp = get_arm64_ftr_reg(sys_id);
> + if (regp && regp->override_mask && regp->override_val) {
> + val &= ~*regp->override_mask;
> + val |= (*regp->override_val & *regp->override_mask);
> + }
> +
> + return val;
Ah, now the previous patch makes more sense. I don't particularly like
this but I can't tell how to work around it. I was hoping that the
overriding feature behaves more like a secondary CPU that limits all the
overridden features. However, this approach would fail for FTR_EXACT
cases (like PAC, though I wonder whether it fails already with your
previous patch since the boot CPU value won't match the override, hence
dropping to the safe one).
--
Catalin
_______________________________________________
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:[~2021-01-22 19:35 UTC|newest]
Thread overview: 166+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 9:45 [PATCH v4 00/21] arm64: Early CPU feature override, and applications to VHE, BTI and PAuth Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 01/21] arm64: Fix labels in el2_setup macros Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 11:13 ` David Brazdil
2021-01-18 11:13 ` David Brazdil
2021-01-18 11:13 ` David Brazdil
2021-01-18 9:45 ` [PATCH v4 02/21] arm64: Fix outdated TCR setup comment Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-20 18:18 ` Catalin Marinas
2021-01-20 18:18 ` Catalin Marinas
2021-01-20 18:18 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 03/21] arm64: Turn the MMU-on sequence into a macro Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-20 18:18 ` Catalin Marinas
2021-01-20 18:18 ` Catalin Marinas
2021-01-20 18:18 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 04/21] arm64: Provide an 'upgrade to VHE' stub hypercall Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 11:25 ` David Brazdil
2021-01-18 11:25 ` David Brazdil
2021-01-18 11:25 ` David Brazdil
2021-01-24 18:44 ` Marc Zyngier
2021-01-24 18:44 ` Marc Zyngier
2021-01-24 18:44 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 05/21] arm64: Initialise as nVHE before switching to VHE Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 06/21] arm64: Move VHE-specific SPE setup to mutate_to_vhe() Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 07/21] arm64: Simplify init_el2_state to be non-VHE only Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 08/21] arm64: Move SCTLR_EL1 initialisation to EL-agnostic code Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-20 18:35 ` Catalin Marinas
2021-01-20 18:35 ` Catalin Marinas
2021-01-20 18:35 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 09/21] arm64: cpufeature: Add global feature override facility Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-22 18:41 ` Catalin Marinas
2021-01-22 18:41 ` Catalin Marinas
2021-01-22 18:41 ` Catalin Marinas
2021-01-23 15:59 ` Suzuki K Poulose
2021-01-23 15:59 ` Suzuki K Poulose
2021-01-23 15:59 ` Suzuki K Poulose
2021-01-18 9:45 ` [PATCH v4 10/21] arm64: cpufeature: Use IDreg override in __read_sysreg_by_encoding() Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-22 18:53 ` Catalin Marinas [this message]
2021-01-22 18:53 ` Catalin Marinas
2021-01-22 18:53 ` Catalin Marinas
2021-01-23 16:04 ` Suzuki K Poulose
2021-01-23 16:04 ` Suzuki K Poulose
2021-01-23 16:04 ` Suzuki K Poulose
2021-01-18 9:45 ` [PATCH v4 11/21] arm64: Extract early FDT mapping from kaslr_early_init() Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-22 18:55 ` Catalin Marinas
2021-01-22 18:55 ` Catalin Marinas
2021-01-22 18:55 ` Catalin Marinas
2021-01-23 13:25 ` Catalin Marinas
2021-01-23 13:25 ` Catalin Marinas
2021-01-23 13:25 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 12/21] arm64: cpufeature: Add an early command-line cpufeature override facility Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 13:07 ` David Brazdil
2021-01-18 13:07 ` David Brazdil
2021-01-18 13:07 ` David Brazdil
2021-01-23 13:23 ` Catalin Marinas
2021-01-23 13:23 ` Catalin Marinas
2021-01-23 13:23 ` Catalin Marinas
2021-01-23 13:43 ` Catalin Marinas
2021-01-23 13:43 ` Catalin Marinas
2021-01-23 13:43 ` Catalin Marinas
2021-01-24 16:21 ` Marc Zyngier
2021-01-24 16:21 ` Marc Zyngier
2021-01-24 16:21 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 13/21] arm64: Allow ID_AA64MMFR1_EL1.VH to be overridden from the command line Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-23 14:04 ` Catalin Marinas
2021-01-23 14:04 ` Catalin Marinas
2021-01-23 14:04 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 14/21] arm64: Honor VHE being disabled from the command-line Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 13:14 ` David Brazdil
2021-01-18 13:14 ` David Brazdil
2021-01-18 13:14 ` David Brazdil
2021-01-23 14:07 ` Catalin Marinas
2021-01-23 14:07 ` Catalin Marinas
2021-01-23 14:07 ` Catalin Marinas
2021-01-24 15:59 ` Marc Zyngier
2021-01-24 15:59 ` Marc Zyngier
2021-01-24 15:59 ` Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 15/21] arm64: Add an aliasing facility for the idreg override Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 13:18 ` David Brazdil
2021-01-18 13:18 ` David Brazdil
2021-01-18 13:18 ` David Brazdil
2021-01-24 19:01 ` Marc Zyngier
2021-01-24 19:01 ` Marc Zyngier
2021-01-24 19:01 ` Marc Zyngier
2021-01-23 14:12 ` Catalin Marinas
2021-01-23 14:12 ` Catalin Marinas
2021-01-23 14:12 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 16/21] arm64: Make kvm-arm.mode={nvhe,protected} an alias of id_aa64mmfr1.vh=0 Marc Zyngier
2021-01-18 9:45 ` [PATCH v4 16/21] arm64: Make kvm-arm.mode={nvhe, protected} " Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-23 14:15 ` [PATCH v4 16/21] arm64: Make kvm-arm.mode={nvhe,protected} " Catalin Marinas
2021-01-23 14:15 ` Catalin Marinas
2021-01-23 14:15 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 17/21] KVM: arm64: Document HVC_VHE_RESTART stub hypercall Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 13:29 ` David Brazdil
2021-01-18 13:29 ` David Brazdil
2021-01-18 13:29 ` David Brazdil
2021-01-18 9:45 ` [PATCH v4 18/21] arm64: Move "nokaslr" over to the early cpufeature infrastructure Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 14:46 ` David Brazdil
2021-01-18 14:46 ` David Brazdil
2021-01-18 14:46 ` David Brazdil
2021-01-24 18:41 ` Marc Zyngier
2021-01-24 18:41 ` Marc Zyngier
2021-01-24 18:41 ` Marc Zyngier
2021-01-23 14:19 ` Catalin Marinas
2021-01-23 14:19 ` Catalin Marinas
2021-01-23 14:19 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 19/21] arm64: cpufeatures: Allow disabling of BTI from the command-line Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-23 14:24 ` Catalin Marinas
2021-01-23 14:24 ` Catalin Marinas
2021-01-23 14:24 ` Catalin Marinas
2021-01-26 20:35 ` Srinivas Ramana
2021-01-26 20:35 ` Srinivas Ramana
2021-01-18 9:45 ` [PATCH v4 20/21] arm64: Defer enabling pointer authentication on boot core Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-23 14:26 ` Catalin Marinas
2021-01-23 14:26 ` Catalin Marinas
2021-01-23 14:26 ` Catalin Marinas
2021-01-18 9:45 ` [PATCH v4 21/21] arm64: cpufeatures: Allow disabling of Pointer Auth from the command-line Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-18 9:45 ` Marc Zyngier
2021-01-23 14:28 ` Catalin Marinas
2021-01-23 14:28 ` Catalin Marinas
2021-01-23 14:28 ` Catalin Marinas
2021-01-26 20:30 ` Srinivas Ramana
2021-01-26 20:30 ` Srinivas Ramana
2021-01-18 14:54 ` [PATCH v4 00/21] arm64: Early CPU feature override, and applications to VHE, BTI and PAuth David Brazdil
2021-01-18 14:54 ` David Brazdil
2021-01-18 14:54 ` David Brazdil
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