From: Jean-Philippe Brucker <jpb@kernel.org>
To: Mark Brown <broonie@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Will Deacon <will@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>,
Oliver Upton <oupton@kernel.org>,
Dave Martin <Dave.Martin@arm.com>, Fuad Tabba <tabba@google.com>,
Mark Rutland <mark.rutland@arm.com>,
Ben Horgan <ben.horgan@arm.com>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
Peter Maydell <peter.maydell@linaro.org>,
Eric Auger <eric.auger@redhat.com>
Subject: Re: [PATCH v10 10/30] KVM: arm64: Rename sve_state_reg_region
Date: Wed, 18 Mar 2026 17:46:14 +0000 [thread overview]
Message-ID: <20260318174614.GH2390801@myrica> (raw)
In-Reply-To: <20260306-kvm-arm64-sme-v10-10-43f7683a0fb7@kernel.org>
On Fri, Mar 06, 2026 at 05:01:02PM +0000, Mark Brown wrote:
> As for SVE we will need to pull parts of dynamically sized registers out of
> a block of memory for SME so we will use a similar code pattern for this.
> Rename the current struct sve_state_reg_region in preparation for this.
>
> No functional change.
>
> Reviewed-by: Fuad Tabba <tabba@google.com>
> Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Jean-Philippe Brucker <jpb@kernel.org>
> ---
> arch/arm64/kvm/guest.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
> index d15aa2da1891..8c3405b5d7b1 100644
> --- a/arch/arm64/kvm/guest.c
> +++ b/arch/arm64/kvm/guest.c
> @@ -404,9 +404,9 @@ static int set_sve_vls(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
> */
> #define vcpu_sve_slices(vcpu) 1
>
> -/* Bounds of a single SVE register slice within vcpu->arch.sve_state */
> -struct sve_state_reg_region {
> - unsigned int koffset; /* offset into sve_state in kernel memory */
> +/* Bounds of a single register slice within vcpu->arch.s[mv]e_state */
> +struct vec_state_reg_region {
> + unsigned int koffset; /* offset into s[mv]e_state in kernel memory */
> unsigned int klen; /* length in kernel memory */
> unsigned int upad; /* extra trailing padding in user memory */
> };
> @@ -415,7 +415,7 @@ struct sve_state_reg_region {
> * Validate SVE register ID and get sanitised bounds for user/kernel SVE
> * register copy
> */
> -static int sve_reg_to_region(struct sve_state_reg_region *region,
> +static int sve_reg_to_region(struct vec_state_reg_region *region,
> struct kvm_vcpu *vcpu,
> const struct kvm_one_reg *reg)
> {
> @@ -485,7 +485,7 @@ static int sve_reg_to_region(struct sve_state_reg_region *region,
> static int get_sve_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
> {
> int ret;
> - struct sve_state_reg_region region;
> + struct vec_state_reg_region region;
> char __user *uptr = (char __user *)reg->addr;
>
> /* Handle the KVM_REG_ARM64_SVE_VLS pseudo-reg as a special case: */
> @@ -511,7 +511,7 @@ static int get_sve_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
> static int set_sve_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
> {
> int ret;
> - struct sve_state_reg_region region;
> + struct vec_state_reg_region region;
> const char __user *uptr = (const char __user *)reg->addr;
>
> /* Handle the KVM_REG_ARM64_SVE_VLS pseudo-reg as a special case: */
>
> --
> 2.47.3
>
>
next prev parent reply other threads:[~2026-03-18 17:46 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-06 17:00 [PATCH v10 00/30] KVM: arm64: Implement support for SME Mark Brown
2026-03-06 17:00 ` [PATCH v10 01/30] arm64/sysreg: Update SMIDR_EL1 to DDI0601 2025-06 Mark Brown
2026-03-16 16:34 ` Catalin Marinas
2026-03-06 17:00 ` [PATCH v10 02/30] arm64/fpsimd: Update FA64 and ZT0 enables when loading SME state Mark Brown
2026-03-16 17:37 ` Catalin Marinas
2026-03-06 17:00 ` [PATCH v10 03/30] arm64/fpsimd: Decide to save ZT0 and streaming mode FFR at bind time Mark Brown
2026-03-16 17:42 ` Catalin Marinas
2026-03-06 17:00 ` [PATCH v10 04/30] arm64/fpsimd: Determine maximum virtualisable SME vector length Mark Brown
2026-03-16 17:44 ` Catalin Marinas
2026-03-18 17:29 ` Jean-Philippe Brucker
2026-03-06 17:00 ` [PATCH v10 05/30] KVM: arm64: Pay attention to FFR parameter in SVE save and load Mark Brown
2026-03-18 17:30 ` Jean-Philippe Brucker
2026-03-06 17:00 ` [PATCH v10 06/30] KVM: arm64: Pull ctxt_has_ helpers to start of sysreg-sr.h Mark Brown
2026-03-18 17:31 ` Jean-Philippe Brucker
2026-03-06 17:00 ` [PATCH v10 07/30] KVM: arm64: Move SVE state access macros after feature test macros Mark Brown
2026-03-18 17:32 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 08/30] KVM: arm64: Rename SVE finalization constants to be more general Mark Brown
2026-03-18 17:33 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 09/30] KVM: arm64: Define internal features for SME Mark Brown
2026-03-18 17:44 ` Jean-Philippe Brucker
2026-03-18 17:50 ` Mark Brown
2026-03-06 17:01 ` [PATCH v10 10/30] KVM: arm64: Rename sve_state_reg_region Mark Brown
2026-03-18 17:46 ` Jean-Philippe Brucker [this message]
2026-03-06 17:01 ` [PATCH v10 11/30] KVM: arm64: Store vector lengths in an array Mark Brown
2026-03-18 17:48 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 12/30] KVM: arm64: Factor SVE code out of fpsimd_lazy_switch_to_host() Mark Brown
2026-03-18 17:49 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 13/30] KVM: arm64: Document the KVM ABI for SME Mark Brown
2026-03-18 17:51 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 14/30] KVM: arm64: Implement SME vector length configuration Mark Brown
2026-03-18 17:53 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 15/30] KVM: arm64: Support SME control registers Mark Brown
2026-03-18 17:54 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 16/30] KVM: arm64: Support TPIDR2_EL0 Mark Brown
2026-03-18 17:55 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 17/30] KVM: arm64: Support SME identification registers for guests Mark Brown
2026-03-18 17:27 ` Jean-Philippe Brucker
2026-03-06 17:01 ` [PATCH v10 18/30] KVM: arm64: Support SME priority registers Mark Brown
2026-03-06 17:01 ` [PATCH v10 19/30] KVM: arm64: Provide assembly for SME register access Mark Brown
2026-03-06 17:01 ` [PATCH v10 20/30] KVM: arm64: Support userspace access to streaming mode Z and P registers Mark Brown
2026-03-06 17:01 ` [PATCH v10 21/30] KVM: arm64: Flush register state on writes to SVCR.SM and SVCR.ZA Mark Brown
2026-03-06 17:01 ` [PATCH v10 22/30] KVM: arm64: Expose SME specific state to userspace Mark Brown
2026-03-06 17:01 ` [PATCH v10 23/30] KVM: arm64: Context switch SME state for guests Mark Brown
2026-03-06 17:01 ` [PATCH v10 24/30] KVM: arm64: Handle SME exceptions Mark Brown
2026-03-06 17:01 ` [PATCH v10 25/30] KVM: arm64: Expose SME to nested guests Mark Brown
2026-03-06 17:01 ` [PATCH v10 26/30] KVM: arm64: Provide interface for configuring and enabling SME for guests Mark Brown
2026-03-06 17:01 ` [PATCH v10 27/30] KVM: arm64: selftests: Remove spurious check for single bit safe values Mark Brown
2026-03-06 17:01 ` [PATCH v10 28/30] KVM: arm64: selftests: Skip impossible invalid value tests Mark Brown
2026-03-24 14:54 ` Ben Horgan
2026-03-24 14:56 ` Mark Brown
2026-03-06 17:01 ` [PATCH v10 29/30] KVM: arm64: selftests: Add SME system registers to get-reg-list Mark Brown
2026-03-06 17:01 ` [PATCH v10 30/30] KVM: arm64: selftests: Add SME to set_id_regs test Mark Brown
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