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 16/28] arm64: RME: Allow populating initial contents
Date: Tue, 14 Mar 2023 17:31:21 +0200 [thread overview]
Message-ID: <20230314173121.00006cfb@gmail.com> (raw)
In-Reply-To: <6c6ff608-2314-a49a-84ee-fac883c4e227@arm.com>
On Fri, 10 Mar 2023 15:47:16 +0000
Steven Price <steven.price@arm.com> wrote:
> On 06/03/2023 17:34, Zhi Wang wrote:
> > On Fri, 27 Jan 2023 11:29:20 +0000
> > Steven Price <steven.price@arm.com> wrote:
> >
> >> The VMM needs to populate the realm with some data before starting (e.g.
> >> a kernel and initrd). This is measured by the RMM and used as part of
> >> the attestation later on.
> >>
> >> Signed-off-by: Steven Price <steven.price@arm.com>
> >> ---
> >> arch/arm64/kvm/rme.c | 366 +++++++++++++++++++++++++++++++++++++++++++
> >> 1 file changed, 366 insertions(+)
> >>
> >> diff --git a/arch/arm64/kvm/rme.c b/arch/arm64/kvm/rme.c
> >> index 16e0bfea98b1..3405b43e1421 100644
> >> --- a/arch/arm64/kvm/rme.c
> >> +++ b/arch/arm64/kvm/rme.c
> >> @@ -4,6 +4,7 @@
> >> */
> >>
> >> #include <linux/kvm_host.h>
> >> +#include <linux/hugetlb.h>
> >>
> >> #include <asm/kvm_emulate.h>
> >> #include <asm/kvm_mmu.h>
> >> @@ -426,6 +427,359 @@ void kvm_realm_unmap_range(struct kvm *kvm, unsigned long ipa, u64 size)
> >> }
> >> }
> >>
> >> +static int realm_create_protected_data_page(struct realm *realm,
> >> + unsigned long ipa,
> >> + struct page *dst_page,
> >> + struct page *tmp_page)
> >> +{
> >> + phys_addr_t dst_phys, tmp_phys;
> >> + int ret;
> >> +
> >> + copy_page(page_address(tmp_page), page_address(dst_page));
> >> +
> >> + dst_phys = page_to_phys(dst_page);
> >> + tmp_phys = page_to_phys(tmp_page);
> >> +
> >> + if (rmi_granule_delegate(dst_phys))
> >> + return -ENXIO;
> >> +
> >> + ret = rmi_data_create(dst_phys, virt_to_phys(realm->rd), ipa, tmp_phys,
> >> + RMI_MEASURE_CONTENT);
> >> +
> >> + if (RMI_RETURN_STATUS(ret) == RMI_ERROR_RTT) {
> >> + /* Create missing RTTs and retry */
> >> + int level = RMI_RETURN_INDEX(ret);
> >> +
> >> + ret = realm_create_rtt_levels(realm, ipa, level,
> >> + RME_RTT_MAX_LEVEL, NULL);
> >> + if (ret)
> >> + goto err;
> >> +
> >> + ret = rmi_data_create(dst_phys, virt_to_phys(realm->rd), ipa,
> >> + tmp_phys, RMI_MEASURE_CONTENT);
> >> + }
> >> +
> >> + if (ret)
> >> + goto err;
> >> +
> >> + return 0;
> >> +
> >> +err:
> >> + if (WARN_ON(rmi_granule_undelegate(dst_phys))) {
> >> + /* Page can't be returned to NS world so is lost */
> >> + get_page(dst_page);
> >> + }
> >> + return -ENXIO;
> >> +}
> >> +
> >> +static int fold_rtt(phys_addr_t rd, unsigned long addr, int level,
> >> + struct realm *realm)
> >> +{
> >> + struct rtt_entry rtt;
> >> + phys_addr_t rtt_addr;
> >> +
> >> + if (rmi_rtt_read_entry(rd, addr, level, &rtt))
> >> + return -ENXIO;
> >> +
> >> + if (rtt.state != RMI_TABLE)
> >> + return -EINVAL;
> >> +
> >> + rtt_addr = rmi_rtt_get_phys(&rtt);
> >> + if (rmi_rtt_fold(rtt_addr, rd, addr, level + 1))
> >> + return -ENXIO;
> >> +
> >> + free_delegated_page(realm, rtt_addr);
> >> +
> >> + return 0;
> >> +}
> >> +
> >> +int realm_map_protected(struct realm *realm,
> >> + unsigned long hva,
> >> + unsigned long base_ipa,
> >> + struct page *dst_page,
> >> + unsigned long map_size,
> >> + struct kvm_mmu_memory_cache *memcache)
> >> +{
> >> + phys_addr_t dst_phys = page_to_phys(dst_page);
> >> + phys_addr_t rd = virt_to_phys(realm->rd);
> >> + unsigned long phys = dst_phys;
> >> + unsigned long ipa = base_ipa;
> >> + unsigned long size;
> >> + int map_level;
> >> + int ret = 0;
> >> +
> >> + if (WARN_ON(!IS_ALIGNED(ipa, map_size)))
> >> + return -EINVAL;
> >> +
> >> + switch (map_size) {
> >> + case PAGE_SIZE:
> >> + map_level = 3;
> >> + break;
> >> + case RME_L2_BLOCK_SIZE:
> >> + map_level = 2;
> >> + break;
> >> + default:
> >> + return -EINVAL;
> >> + }
> >> +
> >> + if (map_level < RME_RTT_MAX_LEVEL) {
> >> + /*
> >> + * A temporary RTT is needed during the map, precreate it,
> >> + * however if there is an error (e.g. missing parent tables)
> >> + * this will be handled below.
> >> + */
> >> + realm_create_rtt_levels(realm, ipa, map_level,
> >> + RME_RTT_MAX_LEVEL, memcache);
> >> + }
> >> +
> >> + for (size = 0; size < map_size; size += PAGE_SIZE) {
> >> + if (rmi_granule_delegate(phys)) {
> >> + struct rtt_entry rtt;
> >> +
> >> + /*
> >> + * It's possible we raced with another VCPU on the same
> >> + * fault. If the entry exists and matches then exit
> >> + * early and assume the other VCPU will handle the
> >> + * mapping.
> >> + */
> >> + if (rmi_rtt_read_entry(rd, ipa, RME_RTT_MAX_LEVEL, &rtt))
> >> + goto err;
> >> +
> >> + // FIXME: For a block mapping this could race at level
> >> + // 2 or 3...
> >> + if (WARN_ON((rtt.walk_level != RME_RTT_MAX_LEVEL ||
> >> + rtt.state != RMI_ASSIGNED ||
> >> + rtt.desc != phys))) {
> >> + goto err;
> >> + }
> >> +
> >> + return 0;
> >> + }
> >> +
> >> + ret = rmi_data_create_unknown(phys, rd, ipa);
> >> +
> >> + if (RMI_RETURN_STATUS(ret) == RMI_ERROR_RTT) {
> >> + /* Create missing RTTs and retry */
> >> + int level = RMI_RETURN_INDEX(ret);
> >> +
> >> + ret = realm_create_rtt_levels(realm, ipa, level,
> >> + RME_RTT_MAX_LEVEL,
> >> + memcache);
> >> + WARN_ON(ret);
> >> + if (ret)
> >> + goto err_undelegate;
> >> +
> >> + ret = rmi_data_create_unknown(phys, rd, ipa);
> >> + }
> >> + WARN_ON(ret);
> >> +
> >> + if (ret)
> >> + goto err_undelegate;
> >> +
> >> + phys += PAGE_SIZE;
> >> + ipa += PAGE_SIZE;
> >> + }
> >> +
> >> + if (map_size == RME_L2_BLOCK_SIZE)
> >> + ret = fold_rtt(rd, base_ipa, map_level, realm);
> >> + if (WARN_ON(ret))
> >> + goto err;
> >> +
> >> + return 0;
> >> +
> >> +err_undelegate:
> >> + if (WARN_ON(rmi_granule_undelegate(phys))) {
> >> + /* Page can't be returned to NS world so is lost */
> >> + get_page(phys_to_page(phys));
> >> + }
> >> +err:
> >> + while (size > 0) {
> >> + phys -= PAGE_SIZE;
> >> + size -= PAGE_SIZE;
> >> + ipa -= PAGE_SIZE;
> >> +
> >> + rmi_data_destroy(rd, ipa);
> >> +
> >> + if (WARN_ON(rmi_granule_undelegate(phys))) {
> >> + /* Page can't be returned to NS world so is lost */
> >> + get_page(phys_to_page(phys));
> >> + }
> >> + }
> >> + return -ENXIO;
> >> +}
> >> +
> >
> > There seems no caller to the function above. Better move it to the related
> > patch.
>
> Indeed this should really be in the next patch - will move as it's very
> confusing having it in this patch (sorry about that).
>
> >> +static int populate_par_region(struct kvm *kvm,
> >> + phys_addr_t ipa_base,
> >> + phys_addr_t ipa_end)
> >> +{
> >> + struct realm *realm = &kvm->arch.realm;
> >> + struct kvm_memory_slot *memslot;
> >> + gfn_t base_gfn, end_gfn;
> >> + int idx;
> >> + phys_addr_t ipa;
> >> + int ret = 0;
> >> + struct page *tmp_page;
> >> + phys_addr_t rd = virt_to_phys(realm->rd);
> >> +
> >> + base_gfn = gpa_to_gfn(ipa_base);
> >> + end_gfn = gpa_to_gfn(ipa_end);
> >> +
> >> + idx = srcu_read_lock(&kvm->srcu);
> >> + memslot = gfn_to_memslot(kvm, base_gfn);
> >> + if (!memslot) {
> >> + ret = -EFAULT;
> >> + goto out;
> >> + }
> >> +
> >> + /* We require the region to be contained within a single memslot */
> >> + if (memslot->base_gfn + memslot->npages < end_gfn) {
> >> + ret = -EINVAL;
> >> + goto out;
> >> + }
> >> +
> >> + tmp_page = alloc_page(GFP_KERNEL);
> >> + if (!tmp_page) {
> >> + ret = -ENOMEM;
> >> + goto out;
> >> + }
> >> +
> >> + mmap_read_lock(current->mm);
> >> +
> >> + ipa = ipa_base;
> >> +
> >> + while (ipa < ipa_end) {
> >> + struct vm_area_struct *vma;
> >> + unsigned long map_size;
> >> + unsigned int vma_shift;
> >> + unsigned long offset;
> >> + unsigned long hva;
> >> + struct page *page;
> >> + kvm_pfn_t pfn;
> >> + int level;
> >> +
> >> + hva = gfn_to_hva_memslot(memslot, gpa_to_gfn(ipa));
> >> + vma = vma_lookup(current->mm, hva);
> >> + if (!vma) {
> >> + ret = -EFAULT;
> >> + break;
> >> + }
> >> +
> >> + if (is_vm_hugetlb_page(vma))
> >> + vma_shift = huge_page_shift(hstate_vma(vma));
> >> + else
> >> + vma_shift = PAGE_SHIFT;
> >> +
> >> + map_size = 1 << vma_shift;
> >> +
> >> + /*
> >> + * FIXME: This causes over mapping, but there's no good
> >> + * solution here with the ABI as it stands
> >> + */
> >> + ipa = ALIGN_DOWN(ipa, map_size);
> >> +
> >> + switch (map_size) {
> >> + case RME_L2_BLOCK_SIZE:
> >> + level = 2;
> >> + break;
> >> + case PAGE_SIZE:
> >> + level = 3;
> >> + break;
> >> + default:
> >> + WARN_ONCE(1, "Unsupport vma_shift %d", vma_shift);
> >> + ret = -EFAULT;
> >> + break;
> >> + }
> >> +
> >> + pfn = gfn_to_pfn_memslot(memslot, gpa_to_gfn(ipa));
> >> +
> >> + if (is_error_pfn(pfn)) {
> >> + ret = -EFAULT;
> >> + break;
> >> + }
> >> +
> >> + ret = rmi_rtt_init_ripas(rd, ipa, level);
> >> + if (RMI_RETURN_STATUS(ret) == RMI_ERROR_RTT) {
> >> + ret = realm_create_rtt_levels(realm, ipa,
> >> + RMI_RETURN_INDEX(ret),
> >> + level, NULL);
> >> + if (ret)
> >> + break;
> >> + ret = rmi_rtt_init_ripas(rd, ipa, level);
> >> + if (ret) {
> >> + ret = -ENXIO;
> >> + break;
> >> + }
> >> + }
> >> +
> >> + if (level < RME_RTT_MAX_LEVEL) {
> >> + /*
> >> + * A temporary RTT is needed during the map, precreate
> >> + * it, however if there is an error (e.g. missing
> >> + * parent tables) this will be handled in the
> >> + * realm_create_protected_data_page() call.
> >> + */
> >> + realm_create_rtt_levels(realm, ipa, level,
> >> + RME_RTT_MAX_LEVEL, NULL);
> >> + }
> >> +
> >> + page = pfn_to_page(pfn);
> >> +
> >> + for (offset = 0; offset < map_size && !ret;
> >> + offset += PAGE_SIZE, page++) {
> >> + phys_addr_t page_ipa = ipa + offset;
> >> +
> >> + ret = realm_create_protected_data_page(realm, page_ipa,
> >> + page, tmp_page);
> >> + }
> >> + if (ret)
> >> + goto err_release_pfn;
> >> +
> >> + if (level == 2) {
> >> + ret = fold_rtt(rd, ipa, level, realm);
> >> + if (ret)
> >> + goto err_release_pfn;
> >> + }
> >> +
> >> + ipa += map_size;
> >
> >> + kvm_set_pfn_accessed(pfn);
> >> + kvm_set_pfn_dirty(pfn);
> >
> > kvm_release_pfn_dirty() has already called kvm_set_pfn_{accessed, dirty}().
>
> Will remove those calls.
>
> >> + kvm_release_pfn_dirty(pfn);
> >> +err_release_pfn:
> >> + if (ret) {
> >> + kvm_release_pfn_clean(pfn);
> >> + break;
> >> + }
> >> + }
> >> +
> >> + mmap_read_unlock(current->mm);
> >> + __free_page(tmp_page);
> >> +
> >> +out:
> >> + srcu_read_unlock(&kvm->srcu, idx);
> >> + return ret;
> >> +}
> >> +
> >> +static int kvm_populate_realm(struct kvm *kvm,
> >> + struct kvm_cap_arm_rme_populate_realm_args *args)
> >> +{
> >> + phys_addr_t ipa_base, ipa_end;
> >> +
> >
> > Check kvm_is_realm(kvm) here or in the kvm_realm_enable_cap().
>
> I'm going to update kvm_vm_ioctl_enable_cap() to check kvm_is_realm() so
> we won't get here.
>
> >> + if (kvm_realm_state(kvm) != REALM_STATE_NEW)
> >> + return -EBUSY;
> >
> > Maybe -EINVAL? The realm hasn't been created (RMI_REALM_CREATE is not called
> > yet). The userspace shouldn't reach this path.
>
> Well user space can attempt to populate in the ACTIVE state - which is
> where the idea of 'busy' comes from. Admittedly it's a little confusing
> when RMI_REALM_CREATE hasn't been called.
>
> I'm not particularly bothered about the return code, but it's useful to
> have a different code to -EINVAL as it's not an invalid argument, but
> calling at the wrong time. I can't immediately see a better error code
> though.
>
The reason why I feel -EBUSY is little bit off is EBUSY usually indicates
something is already initialized and currently running, then another
calling path wanna to operate it.
I took a look on the ioctls in arch/arm64/kvm/arm.c. It seems people have
different opinions for calling execution path at a wrong time:
For example:
long kvm_arch_vcpu_ioctl()
...
case KVM_GET_REG_LIST: {
struct kvm_reg_list __user *user_list = argp;
struct kvm_reg_list reg_list;
unsigned n;
r = -ENOEXEC;
if (unlikely(!kvm_vcpu_initialized(vcpu)))
break;
r = -EPERM;
if (!kvm_arm_vcpu_is_finalized(vcpu))
break;
If we have to choose one, I prefer -ENOEXEC as -EPERM is stranger. But
personally my vote goes to -EINVAL.
> Steve
>
> >> +
> >> + if (!IS_ALIGNED(args->populate_ipa_base, PAGE_SIZE) ||
> >> + !IS_ALIGNED(args->populate_ipa_size, PAGE_SIZE))
> >> + return -EINVAL;
> >> +
> >> + ipa_base = args->populate_ipa_base;
> >> + ipa_end = ipa_base + args->populate_ipa_size;
> >> +
> >> + if (ipa_end < ipa_base)
> >> + return -EINVAL;
> >> +
> >> + return populate_par_region(kvm, ipa_base, ipa_end);
> >> +}
> >> +
> >> static int set_ipa_state(struct kvm_vcpu *vcpu,
> >> unsigned long ipa,
> >> unsigned long end,
> >> @@ -748,6 +1102,18 @@ int kvm_realm_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
> >> r = kvm_init_ipa_range_realm(kvm, &args);
> >> break;
> >> }
> >> + case KVM_CAP_ARM_RME_POPULATE_REALM: {
> >> + struct kvm_cap_arm_rme_populate_realm_args args;
> >> + void __user *argp = u64_to_user_ptr(cap->args[1]);
> >> +
> >> + if (copy_from_user(&args, argp, sizeof(args))) {
> >> + r = -EFAULT;
> >> + break;
> >> + }
> >> +
> >> + r = kvm_populate_realm(kvm, &args);
> >> + break;
> >> + }
> >> default:
> >> r = -EINVAL;
> >> break;
> >
>
next prev parent reply other threads:[~2023-03-14 15:31 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
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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230314173121.00006cfb@gmail.com \
--to=zhi.wang.linux@gmail.com \
--cc=alexandru.elisei@arm.com \
--cc=catalin.marinas@arm.com \
--cc=christoffer.dall@arm.com \
--cc=james.morse@arm.com \
--cc=joey.gouly@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-coco@lists.linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=maz@kernel.org \
--cc=oliver.upton@linux.dev \
--cc=steven.price@arm.com \
--cc=suzuki.poulose@arm.com \
--cc=tabba@google.com \
--cc=will@kernel.org \
--cc=yuzenghui@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).