From: Zhi Wang <zhi.wang.linux@gmail.com>
To: Steven Price <steven.price@arm.com>
Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
James Morse <james.morse@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Joey Gouly <joey.gouly@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Fuad Tabba <tabba@google.com>,
linux-coco@lists.linux.dev
Subject: Re: [RFC PATCH 06/28] arm64: RME: ioctls to create and configure realms
Date: Mon, 6 Mar 2023 21:10:15 +0200 [thread overview]
Message-ID: <20230306211015.0000129d@gmail.com> (raw)
In-Reply-To: <20230127112932.38045-7-steven.price@arm.com>
On Fri, 27 Jan 2023 11:29:10 +0000
Steven Price <steven.price@arm.com> wrote:
> Add the KVM_CAP_ARM_RME_CREATE_FD ioctl to create a realm. This involves
> delegating pages to the RMM to hold the Realm Descriptor (RD) and for
> the base level of the Realm Translation Tables (RTT). A VMID also need
> to be picked, since the RMM has a separate VMID address space a
> dedicated allocator is added for this purpose.
>
> KVM_CAP_ARM_RME_CONFIG_REALM is provided to allow configuring the realm
> before it is created.
>
> Signed-off-by: Steven Price <steven.price@arm.com>
> ---
> arch/arm64/include/asm/kvm_rme.h | 14 ++
> arch/arm64/kvm/arm.c | 19 ++
> arch/arm64/kvm/mmu.c | 6 +
> arch/arm64/kvm/reset.c | 33 +++
> arch/arm64/kvm/rme.c | 357 +++++++++++++++++++++++++++++++
> 5 files changed, 429 insertions(+)
>
> diff --git a/arch/arm64/include/asm/kvm_rme.h b/arch/arm64/include/asm/kvm_rme.h
> index c26bc2c6770d..055a22accc08 100644
> --- a/arch/arm64/include/asm/kvm_rme.h
> +++ b/arch/arm64/include/asm/kvm_rme.h
> @@ -6,6 +6,8 @@
> #ifndef __ASM_KVM_RME_H
> #define __ASM_KVM_RME_H
>
> +#include <uapi/linux/kvm.h>
> +
> enum realm_state {
> REALM_STATE_NONE,
> REALM_STATE_NEW,
> @@ -15,8 +17,20 @@ enum realm_state {
>
> struct realm {
> enum realm_state state;
> +
> + void *rd;
> + struct realm_params *params;
> +
> + unsigned long num_aux;
> + unsigned int vmid;
> + unsigned int ia_bits;
> };
>
> int kvm_init_rme(void);
> +u32 kvm_realm_ipa_limit(void);
> +
> +int kvm_realm_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap);
> +int kvm_init_realm_vm(struct kvm *kvm);
> +void kvm_destroy_realm(struct kvm *kvm);
>
> #endif
> diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
> index d97b39d042ab..50f54a63732a 100644
> --- a/arch/arm64/kvm/arm.c
> +++ b/arch/arm64/kvm/arm.c
> @@ -103,6 +103,13 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
> r = 0;
> set_bit(KVM_ARCH_FLAG_SYSTEM_SUSPEND_ENABLED, &kvm->arch.flags);
> break;
> + case KVM_CAP_ARM_RME:
> + if (!static_branch_unlikely(&kvm_rme_is_available))
> + return -EINVAL;
> + mutex_lock(&kvm->lock);
> + r = kvm_realm_enable_cap(kvm, cap);
> + mutex_unlock(&kvm->lock);
> + break;
> default:
> r = -EINVAL;
> break;
> @@ -172,6 +179,13 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
> */
> kvm->arch.dfr0_pmuver.imp = kvm_arm_pmu_get_pmuver_limit();
>
> + /* Initialise the realm bits after the generic bits are enabled */
> + if (kvm_is_realm(kvm)) {
> + ret = kvm_init_realm_vm(kvm);
> + if (ret)
> + goto err_free_cpumask;
> + }
> +
> return 0;
>
> err_free_cpumask:
> @@ -204,6 +218,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
> kvm_destroy_vcpus(kvm);
>
> kvm_unshare_hyp(kvm, kvm + 1);
> +
> + kvm_destroy_realm(kvm);
> }
>
> int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
> @@ -300,6 +316,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
> case KVM_CAP_ARM_PTRAUTH_GENERIC:
> r = system_has_full_ptr_auth();
> break;
> + case KVM_CAP_ARM_RME:
> + r = static_key_enabled(&kvm_rme_is_available);
> + break;
> default:
> r = 0;
> }
> diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
> index 31d7fa4c7c14..d0f707767d05 100644
> --- a/arch/arm64/kvm/mmu.c
> +++ b/arch/arm64/kvm/mmu.c
> @@ -840,6 +840,12 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
> struct kvm_pgtable *pgt = NULL;
>
> write_lock(&kvm->mmu_lock);
> + if (kvm_is_realm(kvm) &&
> + kvm_realm_state(kvm) != REALM_STATE_DYING) {
> + /* TODO: teardown rtts */
> + write_unlock(&kvm->mmu_lock);
> + return;
> + }
> pgt = mmu->pgt;
> if (pgt) {
> mmu->pgd_phys = 0;
> diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
> index e0267f672b8a..c165df174737 100644
> --- a/arch/arm64/kvm/reset.c
> +++ b/arch/arm64/kvm/reset.c
> @@ -395,3 +395,36 @@ int kvm_set_ipa_limit(void)
>
> return 0;
> }
> +
The below function doesn't have an user in this patch. Also,
it looks like a part of copy from kvm_init_stage2_mmu()
in arch/arm64/kvm/mmu.c.
> +int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type)
> +{
> + u64 mmfr0, mmfr1;
> + u32 phys_shift;
> + u32 ipa_limit = kvm_ipa_limit;
> +
> + if (kvm_is_realm(kvm))
> + ipa_limit = kvm_realm_ipa_limit();
> +
> + if (type & ~KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
> + return -EINVAL;
> +
> + phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
> + if (phys_shift) {
> + if (phys_shift > ipa_limit ||
> + phys_shift < ARM64_MIN_PARANGE_BITS)
> + return -EINVAL;
> + } else {
> + phys_shift = KVM_PHYS_SHIFT;
> + if (phys_shift > ipa_limit) {
> + pr_warn_once("%s using unsupported default IPA limit, upgrade your VMM\n",
> + current->comm);
> + return -EINVAL;
> + }
> + }
> +
> + mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
> + mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
> + kvm->arch.vtcr = kvm_get_vtcr(mmfr0, mmfr1, phys_shift);
> +
> + return 0;
> +}
> diff --git a/arch/arm64/kvm/rme.c b/arch/arm64/kvm/rme.c
> index f6b587bc116e..9f8c5a91b8fc 100644
> --- a/arch/arm64/kvm/rme.c
> +++ b/arch/arm64/kvm/rme.c
> @@ -5,9 +5,49 @@
>
> #include <linux/kvm_host.h>
>
> +#include <asm/kvm_emulate.h>
> +#include <asm/kvm_mmu.h>
> #include <asm/rmi_cmds.h>
> #include <asm/virt.h>
>
> +/************ FIXME: Copied from kvm/hyp/pgtable.c **********/
> +#include <asm/kvm_pgtable.h>
> +
> +struct kvm_pgtable_walk_data {
> + struct kvm_pgtable *pgt;
> + struct kvm_pgtable_walker *walker;
> +
> + u64 addr;
> + u64 end;
> +};
> +
> +static u32 __kvm_pgd_page_idx(struct kvm_pgtable *pgt, u64 addr)
> +{
> + u64 shift = kvm_granule_shift(pgt->start_level - 1); /* May underflow */
> + u64 mask = BIT(pgt->ia_bits) - 1;
> +
> + return (addr & mask) >> shift;
> +}
> +
> +static u32 kvm_pgd_pages(u32 ia_bits, u32 start_level)
> +{
> + struct kvm_pgtable pgt = {
> + .ia_bits = ia_bits,
> + .start_level = start_level,
> + };
> +
> + return __kvm_pgd_page_idx(&pgt, -1ULL) + 1;
> +}
> +
> +/******************/
> +
> +static unsigned long rmm_feat_reg0;
> +
> +static bool rme_supports(unsigned long feature)
> +{
> + return !!u64_get_bits(rmm_feat_reg0, feature);
> +}
> +
> static int rmi_check_version(void)
> {
> struct arm_smccc_res res;
> @@ -33,8 +73,319 @@ static int rmi_check_version(void)
> return 0;
> }
>
> +static unsigned long create_realm_feat_reg0(struct kvm *kvm)
> +{
> + unsigned long ia_bits = VTCR_EL2_IPA(kvm->arch.vtcr);
> + u64 feat_reg0 = 0;
> +
> + int num_bps = u64_get_bits(rmm_feat_reg0,
> + RMI_FEATURE_REGISTER_0_NUM_BPS);
> + int num_wps = u64_get_bits(rmm_feat_reg0,
> + RMI_FEATURE_REGISTER_0_NUM_WPS);
> +
> + feat_reg0 |= u64_encode_bits(ia_bits, RMI_FEATURE_REGISTER_0_S2SZ);
> + feat_reg0 |= u64_encode_bits(num_bps, RMI_FEATURE_REGISTER_0_NUM_BPS);
> + feat_reg0 |= u64_encode_bits(num_wps, RMI_FEATURE_REGISTER_0_NUM_WPS);
> +
> + return feat_reg0;
> +}
> +
> +u32 kvm_realm_ipa_limit(void)
> +{
> + return u64_get_bits(rmm_feat_reg0, RMI_FEATURE_REGISTER_0_S2SZ);
> +}
> +
> +static u32 get_start_level(struct kvm *kvm)
> +{
> + long sl0 = FIELD_GET(VTCR_EL2_SL0_MASK, kvm->arch.vtcr);
> +
> + return VTCR_EL2_TGRAN_SL0_BASE - sl0;
> +}
> +
> +static int realm_create_rd(struct kvm *kvm)
> +{
> + struct realm *realm = &kvm->arch.realm;
> + struct realm_params *params = realm->params;
> + void *rd = NULL;
> + phys_addr_t rd_phys, params_phys;
> + struct kvm_pgtable *pgt = kvm->arch.mmu.pgt;
> + unsigned int pgd_sz;
> + int i, r;
> +
> + if (WARN_ON(realm->rd) || WARN_ON(!realm->params))
> + return -EEXIST;
> +
> + rd = (void *)__get_free_page(GFP_KERNEL);
> + if (!rd)
> + return -ENOMEM;
> +
> + rd_phys = virt_to_phys(rd);
> + if (rmi_granule_delegate(rd_phys)) {
> + r = -ENXIO;
> + goto out;
> + }
> +
> + pgd_sz = kvm_pgd_pages(pgt->ia_bits, pgt->start_level);
> + for (i = 0; i < pgd_sz; i++) {
> + phys_addr_t pgd_phys = kvm->arch.mmu.pgd_phys + i * PAGE_SIZE;
> +
> + if (rmi_granule_delegate(pgd_phys)) {
> + r = -ENXIO;
> + goto out_undelegate_tables;
> + }
> + }
> +
> + params->rtt_level_start = get_start_level(kvm);
> + params->rtt_num_start = pgd_sz;
> + params->rtt_base = kvm->arch.mmu.pgd_phys;
> + params->vmid = realm->vmid;
> +
> + params_phys = virt_to_phys(params);
> +
> + if (rmi_realm_create(rd_phys, params_phys)) {
> + r = -ENXIO;
> + goto out_undelegate_tables;
> + }
> +
> + realm->rd = rd;
> + realm->ia_bits = VTCR_EL2_IPA(kvm->arch.vtcr);
> +
> + if (WARN_ON(rmi_rec_aux_count(rd_phys, &realm->num_aux))) {
> + WARN_ON(rmi_realm_destroy(rd_phys));
> + goto out_undelegate_tables;
> + }
> +
> + return 0;
> +
> +out_undelegate_tables:
> + while (--i >= 0) {
> + phys_addr_t pgd_phys = kvm->arch.mmu.pgd_phys + i * PAGE_SIZE;
> +
> + WARN_ON(rmi_granule_undelegate(pgd_phys));
> + }
> + WARN_ON(rmi_granule_undelegate(rd_phys));
> +out:
> + free_page((unsigned long)rd);
> + return r;
> +}
> +
> +/* Protects access to rme_vmid_bitmap */
> +static DEFINE_SPINLOCK(rme_vmid_lock);
> +static unsigned long *rme_vmid_bitmap;
> +
> +static int rme_vmid_init(void)
> +{
> + unsigned int vmid_count = 1 << kvm_get_vmid_bits();
> +
> + rme_vmid_bitmap = bitmap_zalloc(vmid_count, GFP_KERNEL);
> + if (!rme_vmid_bitmap) {
> + kvm_err("%s: Couldn't allocate rme vmid bitmap\n", __func__);
> + return -ENOMEM;
> + }
> +
> + return 0;
> +}
> +
> +static int rme_vmid_reserve(void)
> +{
> + int ret;
> + unsigned int vmid_count = 1 << kvm_get_vmid_bits();
> +
> + spin_lock(&rme_vmid_lock);
> + ret = bitmap_find_free_region(rme_vmid_bitmap, vmid_count, 0);
> + spin_unlock(&rme_vmid_lock);
> +
> + return ret;
> +}
> +
> +static void rme_vmid_release(unsigned int vmid)
> +{
> + spin_lock(&rme_vmid_lock);
> + bitmap_release_region(rme_vmid_bitmap, vmid, 0);
> + spin_unlock(&rme_vmid_lock);
> +}
> +
> +static int kvm_create_realm(struct kvm *kvm)
> +{
> + struct realm *realm = &kvm->arch.realm;
> + int ret;
> +
> + if (!kvm_is_realm(kvm) || kvm_realm_state(kvm) != REALM_STATE_NONE)
> + return -EEXIST;
> +
> + ret = rme_vmid_reserve();
> + if (ret < 0)
> + return ret;
> + realm->vmid = ret;
> +
> + ret = realm_create_rd(kvm);
> + if (ret) {
> + rme_vmid_release(realm->vmid);
> + return ret;
> + }
> +
> + WRITE_ONCE(realm->state, REALM_STATE_NEW);
> +
> + /* The realm is up, free the parameters. */
> + free_page((unsigned long)realm->params);
> + realm->params = NULL;
> +
> + return 0;
> +}
> +
> +static int config_realm_hash_algo(struct realm *realm,
> + struct kvm_cap_arm_rme_config_item *cfg)
> +{
> + switch (cfg->hash_algo) {
> + case KVM_CAP_ARM_RME_MEASUREMENT_ALGO_SHA256:
> + if (!rme_supports(RMI_FEATURE_REGISTER_0_HASH_SHA_256))
> + return -EINVAL;
> + break;
> + case KVM_CAP_ARM_RME_MEASUREMENT_ALGO_SHA512:
> + if (!rme_supports(RMI_FEATURE_REGISTER_0_HASH_SHA_512))
> + return -EINVAL;
> + break;
> + default:
> + return -EINVAL;
> + }
> + realm->params->measurement_algo = cfg->hash_algo;
> + return 0;
> +}
> +
> +static int config_realm_sve(struct realm *realm,
> + struct kvm_cap_arm_rme_config_item *cfg)
> +{
> + u64 features_0 = realm->params->features_0;
> + int max_sve_vq = u64_get_bits(rmm_feat_reg0,
> + RMI_FEATURE_REGISTER_0_SVE_VL);
> +
> + if (!rme_supports(RMI_FEATURE_REGISTER_0_SVE_EN))
> + return -EINVAL;
> +
> + if (cfg->sve_vq > max_sve_vq)
> + return -EINVAL;
> +
> + features_0 &= ~(RMI_FEATURE_REGISTER_0_SVE_EN |
> + RMI_FEATURE_REGISTER_0_SVE_VL);
> + features_0 |= u64_encode_bits(1, RMI_FEATURE_REGISTER_0_SVE_EN);
> + features_0 |= u64_encode_bits(cfg->sve_vq,
> + RMI_FEATURE_REGISTER_0_SVE_VL);
> +
> + realm->params->features_0 = features_0;
> + return 0;
> +}
> +
> +static int kvm_rme_config_realm(struct kvm *kvm, struct kvm_enable_cap *cap)
> +{
> + struct kvm_cap_arm_rme_config_item cfg;
> + struct realm *realm = &kvm->arch.realm;
> + int r = 0;
> +
> + if (kvm_realm_state(kvm) != REALM_STATE_NONE)
> + return -EBUSY;
> +
> + if (copy_from_user(&cfg, (void __user *)cap->args[1], sizeof(cfg)))
> + return -EFAULT;
> +
> + switch (cfg.cfg) {
> + case KVM_CAP_ARM_RME_CFG_RPV:
> + memcpy(&realm->params->rpv, &cfg.rpv, sizeof(cfg.rpv));
> + break;
> + case KVM_CAP_ARM_RME_CFG_HASH_ALGO:
> + r = config_realm_hash_algo(realm, &cfg);
> + break;
> + case KVM_CAP_ARM_RME_CFG_SVE:
> + r = config_realm_sve(realm, &cfg);
> + break;
> + default:
> + r = -EINVAL;
> + }
> +
> + return r;
> +}
> +
> +int kvm_realm_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
> +{
> + int r = 0;
> +
> + switch (cap->args[0]) {
> + case KVM_CAP_ARM_RME_CONFIG_REALM:
> + r = kvm_rme_config_realm(kvm, cap);
> + break;
> + case KVM_CAP_ARM_RME_CREATE_RD:
> + if (kvm->created_vcpus) {
> + r = -EBUSY;
> + break;
> + }
> +
> + r = kvm_create_realm(kvm);
> + break;
> + default:
> + r = -EINVAL;
> + break;
> + }
> +
> + return r;
> +}
> +
> +void kvm_destroy_realm(struct kvm *kvm)
> +{
> + struct realm *realm = &kvm->arch.realm;
> + struct kvm_pgtable *pgt = kvm->arch.mmu.pgt;
> + unsigned int pgd_sz;
> + int i;
> +
> + if (realm->params) {
> + free_page((unsigned long)realm->params);
> + realm->params = NULL;
> + }
> +
> + if (kvm_realm_state(kvm) == REALM_STATE_NONE)
> + return;
> +
> + WRITE_ONCE(realm->state, REALM_STATE_DYING);
> +
> + rme_vmid_release(realm->vmid);
> +
> + if (realm->rd) {
> + phys_addr_t rd_phys = virt_to_phys(realm->rd);
> +
> + if (WARN_ON(rmi_realm_destroy(rd_phys)))
> + return;
> + if (WARN_ON(rmi_granule_undelegate(rd_phys)))
> + return;
> + free_page((unsigned long)realm->rd);
> + realm->rd = NULL;
> + }
> +
> + pgd_sz = kvm_pgd_pages(pgt->ia_bits, pgt->start_level);
> + for (i = 0; i < pgd_sz; i++) {
> + phys_addr_t pgd_phys = kvm->arch.mmu.pgd_phys + i * PAGE_SIZE;
> +
> + if (WARN_ON(rmi_granule_undelegate(pgd_phys)))
> + return;
> + }
> +
> + kvm_free_stage2_pgd(&kvm->arch.mmu);
> +}
> +
> +int kvm_init_realm_vm(struct kvm *kvm)
> +{
> + struct realm_params *params;
> +
> + params = (struct realm_params *)get_zeroed_page(GFP_KERNEL);
> + if (!params)
> + return -ENOMEM;
> +
> + params->features_0 = create_realm_feat_reg0(kvm);
> + kvm->arch.realm.params = params;
> + return 0;
> +}
> +
> int kvm_init_rme(void)
> {
> + int ret;
> +
> if (PAGE_SIZE != SZ_4K)
> /* Only 4k page size on the host is supported */
> return 0;
> @@ -43,6 +394,12 @@ int kvm_init_rme(void)
> /* Continue without realm support */
> return 0;
>
> + ret = rme_vmid_init();
> + if (ret)
> + return ret;
> +
> + WARN_ON(rmi_features(0, &rmm_feat_reg0));
> +
> /* Future patch will enable static branch kvm_rme_is_available */
>
> return 0;
next prev parent reply other threads:[~2023-03-06 19:10 UTC|newest]
Thread overview: 190+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-27 11:22 [RFC] Support for Arm CCA VMs on Linux Suzuki K Poulose
2023-01-27 11:27 ` [RFC PATCH 00/14] arm64: Support for running as a guest in Arm CCA Steven Price
2023-01-27 11:27 ` [RFC PATCH 01/14] arm64: remove redundant 'extern' Steven Price
2023-01-27 11:27 ` [RFC PATCH 02/14] arm64: rsi: Add RSI definitions Steven Price
2023-01-27 11:27 ` [RFC PATCH 03/14] arm64: Detect if in a realm and set RIPAS RAM Steven Price
2023-01-27 11:27 ` [RFC PATCH 04/14] arm64: realm: Query IPA size from the RMM Steven Price
2023-01-27 11:27 ` [RFC PATCH 05/14] arm64: Mark all I/O as non-secure shared Steven Price
2023-01-27 11:27 ` [RFC PATCH 06/14] fixmap: Allow architecture overriding set_fixmap_io Steven Price
2023-01-27 11:27 ` [RFC PATCH 07/14] arm64: Override set_fixmap_io Steven Price
2023-01-27 11:27 ` [RFC PATCH 08/14] arm64: Make the PHYS_MASK_SHIFT dynamic Steven Price
2023-01-27 11:27 ` [RFC PATCH 09/14] arm64: Enforce bounce buffers for realm DMA Steven Price
2023-01-27 11:27 ` [RFC PATCH 10/14] arm64: Enable memory encrypt for Realms Steven Price
2023-01-27 11:27 ` [RFC PATCH 11/14] arm64: Force device mappings to be non-secure shared Steven Price
2023-01-27 11:27 ` [RFC PATCH 12/14] efi: arm64: Map Device with Prot Shared Steven Price
2023-01-27 11:27 ` [RFC PATCH 13/14] arm64: realm: Support nonsecure ITS emulation shared Steven Price
2023-01-27 11:27 ` [RFC PATCH 14/14] HACK: Accept prototype RSI version Steven Price
2023-01-27 11:29 ` [RFC PATCH 00/28] arm64: Support for Arm CCA in KVM Steven Price
2023-01-27 11:29 ` [RFC PATCH 01/28] arm64: RME: Handle Granule Protection Faults (GPFs) Steven Price
2023-01-27 11:29 ` [RFC PATCH 02/28] arm64: RME: Add SMC definitions for calling the RMM Steven Price
2023-01-27 11:29 ` [RFC PATCH 03/28] arm64: RME: Add wrappers for RMI calls Steven Price
2023-02-13 16:43 ` Zhi Wang
2024-03-18 7:03 ` Ganapatrao Kulkarni
2024-03-18 11:22 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 04/28] arm64: RME: Check for RME support at KVM init Steven Price
2023-02-13 15:48 ` Zhi Wang
2023-02-13 15:59 ` Steven Price
2023-03-04 12:07 ` Zhi Wang
2023-02-13 15:55 ` Zhi Wang
2024-03-18 7:17 ` Ganapatrao Kulkarni
2024-03-18 11:22 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 05/28] arm64: RME: Define the user ABI Steven Price
2023-02-13 16:04 ` Zhi Wang
2023-03-01 11:54 ` Steven Price
2023-03-01 20:21 ` Zhi Wang
2023-01-27 11:29 ` [RFC PATCH 06/28] arm64: RME: ioctls to create and configure realms Steven Price
2023-02-07 12:25 ` Jean-Philippe Brucker
2023-02-07 12:55 ` Suzuki K Poulose
2023-02-13 16:10 ` Zhi Wang
2023-03-01 11:55 ` Steven Price
2023-03-01 20:33 ` Zhi Wang
2023-03-06 19:10 ` Zhi Wang [this message]
2023-03-10 15:47 ` Steven Price
2024-03-18 7:40 ` Ganapatrao Kulkarni
2024-03-18 11:22 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 07/28] arm64: kvm: Allow passing machine type in KVM creation Steven Price
2023-02-13 16:35 ` Zhi Wang
2023-03-01 11:55 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 08/28] arm64: RME: Keep a spare page delegated to the RMM Steven Price
2023-02-13 16:47 ` Zhi Wang
2023-03-01 11:55 ` Steven Price
2023-03-01 20:50 ` Zhi Wang
2023-01-27 11:29 ` [RFC PATCH 09/28] arm64: RME: RTT handling Steven Price
2023-02-13 17:44 ` Zhi Wang
2023-03-03 14:04 ` Steven Price
2023-03-04 12:32 ` Zhi Wang
2024-03-18 11:01 ` Ganapatrao Kulkarni
2024-03-18 11:25 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 10/28] arm64: RME: Allocate/free RECs to match vCPUs Steven Price
2023-02-13 18:08 ` Zhi Wang
2023-03-03 14:05 ` Steven Price
2023-03-04 12:46 ` Zhi Wang
2023-01-27 11:29 ` [RFC PATCH 11/28] arm64: RME: Support for the VGIC in realms Steven Price
2023-01-27 11:29 ` [RFC PATCH 12/28] KVM: arm64: Support timers in realm RECs Steven Price
2024-03-18 11:28 ` Ganapatrao Kulkarni
2024-03-18 14:14 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 13/28] arm64: RME: Allow VMM to set RIPAS Steven Price
2023-02-17 13:07 ` Zhi Wang
2023-03-03 14:05 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 14/28] arm64: RME: Handle realm enter/exit Steven Price
2023-01-27 11:29 ` [RFC PATCH 15/28] KVM: arm64: Handle realm MMIO emulation Steven Price
2023-03-06 15:37 ` Zhi Wang
2023-03-10 15:47 ` Steven Price
2023-03-14 15:44 ` Zhi Wang
2023-03-22 11:51 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 16/28] arm64: RME: Allow populating initial contents Steven Price
2023-03-06 17:34 ` Zhi Wang
2023-03-10 15:47 ` Steven Price
2023-03-14 15:31 ` Zhi Wang
2023-03-22 11:51 ` Steven Price
2023-01-27 11:29 ` [RFC PATCH 17/28] arm64: RME: Runtime faulting of memory Steven Price
2023-03-06 18:20 ` Zhi Wang
2023-03-10 15:47 ` Steven Price
2023-03-14 16:41 ` Zhi Wang
2023-01-27 11:29 ` [RFC PATCH 18/28] KVM: arm64: Handle realm VCPU load Steven Price
2023-01-27 11:29 ` [RFC PATCH 19/28] KVM: arm64: Validate register access for a Realm VM Steven Price
2023-01-27 11:29 ` [RFC PATCH 20/28] KVM: arm64: Handle Realm PSCI requests Steven Price
2023-01-27 11:29 ` [RFC PATCH 21/28] KVM: arm64: WARN on injected undef exceptions Steven Price
2023-01-27 11:29 ` [RFC PATCH 22/28] arm64: Don't expose stolen time for realm guests Steven Price
2023-01-27 11:29 ` [RFC PATCH 23/28] KVM: arm64: Allow activating realms Steven Price
2023-01-27 11:29 ` [RFC PATCH 24/28] arm64: rme: allow userspace to inject aborts Steven Price
2023-01-27 11:29 ` [RFC PATCH 25/28] arm64: rme: support RSI_HOST_CALL Steven Price
2023-01-27 11:29 ` [RFC PATCH 26/28] arm64: rme: Allow checking SVE on VM instance Steven Price
2023-01-27 11:29 ` [RFC PATCH 27/28] arm64: RME: Always use 4k pages for realms Steven Price
2023-01-27 11:29 ` [RFC PATCH 28/28] HACK: Accept prototype RMI versions Steven Price
2023-01-27 11:39 ` [RFC kvmtool 00/31] arm64: Support for Arm Confidential Compute Architecture Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 01/31] arm64: Disable MTE when CFI flash is emulated Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 02/31] script: update_headers: Ignore missing architectures Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 03/31] hw: cfi flash: Handle errors in memory transitions Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 04/31] Add --nocompat option to disable compat warnings Suzuki K Poulose
2023-01-27 12:19 ` Alexandru Elisei
2023-01-27 11:39 ` [RFC kvmtool 05/31] arm64: Check pvtime support against the KVM instance Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 06/31] arm64: Check SVE capability on the VM instance Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 07/31] arm64: Add option to disable SVE Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 08/31] linux: Update kernel headers for RME support Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 09/31] arm64: Add --realm command line option Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 10/31] arm64: Create a realm virtual machine Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 11/31] arm64: Lock realm RAM in memory Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 12/31] arm64: Create Realm Descriptor Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 13/31] arm64: Add --measurement-algo command line option for a realm Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 14/31] arm64: Add configuration step for Realms Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 15/31] arm64: Add support for Realm Personalisation Value Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 16/31] arm64: Add support for specifying the SVE vector length for Realm Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 17/31] arm: Add kernel size to VM context Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 18/31] arm64: Populate initial realm contents Suzuki K Poulose
2023-03-02 14:03 ` Piotr Sawicki
2023-03-02 14:06 ` Suzuki K Poulose
2023-10-02 9:28 ` Piotr Sawicki
2023-01-27 11:39 ` [RFC kvmtool 19/31] arm64: Don't try to set PSTATE for VCPUs belonging to a realm Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 20/31] arm64: Finalize realm VCPU after reset Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 21/31] init: Add last_{init, exit} list macros Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 22/31] arm64: Activate realm before the first VCPU is run Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 23/31] arm64: Specify SMC as the PSCI conduits for realms Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 24/31] arm64: Don't try to debug a realm Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 25/31] arm64: realm: Double the IPA space Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 26/31] virtio: Add a wrapper for get_host_features Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 27/31] virtio: Add arch specific hook for virtio host flags Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 28/31] arm64: realm: Enforce virtio F_ACCESS_PLATFORM flag Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 29/31] mmio: add arch hook for an unhandled MMIO access Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 30/31] arm64: realm: inject an abort on " Suzuki K Poulose
2023-01-27 11:39 ` [RFC kvmtool 31/31] arm64: Allow the user to create a realm Suzuki K Poulose
2023-10-02 9:45 ` [RFC kvmtool 00/31] arm64: Support for Arm Confidential Compute Architecture Piotr Sawicki
2023-01-27 11:40 ` [RFC kvm-unit-tests 00/27] " Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 01/27] lib/string: include stddef.h for size_t Joey Gouly
2023-01-31 14:43 ` Thomas Huth
2023-01-27 11:40 ` [RFC kvm-unit-tests 02/27] arm: Expand SMCCC arguments and return values Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 03/27] arm: realm: Add RSI interface header Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 04/27] arm: Make physical address mask dynamic Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 05/27] arm: Introduce NS_SHARED PTE attribute Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 06/27] arm: Move io_init after vm initialization Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 07/27] arm: realm: Make uart available before MMU is enabled Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 08/27] arm: realm: Realm initialisation Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 09/27] arm: realm: Add support for changing the state of memory Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 10/27] arm: realm: Set RIPAS state for RAM Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 11/27] arm: realm: Early memory setup Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 12/27] arm: realm: Add RSI version test Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 13/27] arm: selftest: realm: skip pabt test when running in a realm Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 14/27] arm: realm: add hvc and RSI_HOST_CALL tests Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 15/27] arm: realm: Add test for FPU/SIMD context save/restore Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 16/27] arm: realm: Add tests for in realm SEA Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 17/27] lib/alloc_page: Add shared page allocation support Joey Gouly
2023-01-27 11:40 ` [RFC kvm-unit-tests 18/27] arm: gic-v3-its: Use shared pages wherever needed Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 19/27] arm: realm: Enable memory encryption Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 20/27] qcbor: Add QCBOR as a submodule Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 21/27] arm: Add build steps for QCBOR library Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 22/27] arm: Add a library to verify tokens using the " Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 23/27] arm: realm: add RSI interface for attestation measurements Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 24/27] arm: realm: Add helpers to decode RSI return codes Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 25/27] arm: realm: Add Realm attestation tests Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 26/27] arm: realm: Add a test for shared memory Joey Gouly
2023-01-27 11:41 ` [RFC kvm-unit-tests 27/27] NOT-FOR-MERGING: add run-realm-tests Joey Gouly
2023-01-27 15:26 ` [RFC] Support for Arm CCA VMs on Linux Jean-Philippe Brucker
2023-02-28 23:35 ` Itaru Kitayama
2023-03-01 9:20 ` Jean-Philippe Brucker
2023-03-01 22:12 ` Itaru Kitayama
2023-03-02 9:18 ` Jean-Philippe Brucker
2023-03-03 9:46 ` Jean-Philippe Brucker
2023-03-03 9:54 ` Suzuki K Poulose
2023-03-03 11:39 ` Jean-Philippe Brucker
2023-03-03 12:08 ` Andrew Jones
2023-03-03 12:19 ` Suzuki K Poulose
2023-03-03 13:06 ` Cornelia Huck
2023-03-03 13:57 ` Jean-Philippe Brucker
2023-02-10 16:51 ` Ryan Roberts
2023-02-10 22:53 ` Itaru Kitayama
2023-02-17 8:02 ` Itaru Kitayama
2023-02-20 10:51 ` Ryan Roberts
2023-02-14 17:13 ` Dr. David Alan Gilbert
2023-03-01 9:58 ` Suzuki K Poulose
2023-03-02 16:46 ` Dr. David Alan Gilbert
2023-03-02 19:02 ` Suzuki K Poulose
2023-07-14 13:46 ` Jonathan Cameron
2023-07-14 15:03 ` Suzuki K Poulose
2023-07-14 16:28 ` Jonathan Cameron
2023-07-17 9:40 ` Suzuki K Poulose
2023-10-02 12:43 ` Suzuki K Poulose
2024-01-10 5:40 ` Itaru Kitayama
2024-01-10 11:41 ` Suzuki K Poulose
2024-01-10 13:44 ` Suzuki K Poulose
2024-01-19 1:26 ` Itaru Kitayama
2024-01-12 5:01 ` Itaru Kitayama
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