From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: Kohei Enju <enju.kohei@fujitsu.com>
Cc: berrange@redhat.com, kchamart@redhat.com,
pierrick.bouvier@oss.qualcomm.com, peter.maydell@linaro.org,
mst@redhat.com, cohuck@redhat.com, pbonzini@redhat.com,
eblake@redhat.com, armbru@redhat.com,
lorenzo.pieralisi@linaro.org, gshan@redhat.com,
qemu-devel@nongnu.org, qemu-arm@nongnu.org, kvm@vger.kernel.org
Subject: Re: [RFC v4 07/24] target/arm/kvm: Create scratch Realm VM when requested
Date: Fri, 4 Sep 2026 10:25:37 -0600 [thread overview]
Message-ID: <aprxAYZzTOS9lPth@p14s> (raw)
In-Reply-To: <apo185JSe61bK3zm@FCCLS0092175.localdomain>
On Fri, Sep 04, 2026 at 12:09:32PM +0900, Kohei Enju wrote:
> On 09/03 13:35, Mathieu Poirier wrote:
> > From: Jean-Philippe Brucker <jean-philippe@linaro.org>
> >
> > When a Realm is requested, create a scratch Realm VM by setting bit 8
>
> nit:
> KVM_VM_TYPE_ARM_REALM is no longer defined as 1 << 8, so shouldn't this
> be updated as well?
This changes often - I'll look into it.
>
> > of the argument given to the KVM_CREATE_VM ioctl(). Bit 7-0 are reserved
> > for the guest PA size.
> >
> > Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
> > Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
next prev parent reply other threads:[~2026-09-04 16:25 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-03 19:35 [RFC v4 00/24] Add Realm support to QEMU-VMM Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 01/24] linux-headers: Add RME related definitions Mathieu Poirier
2026-09-04 6:07 ` Gavin Shan
2026-09-04 16:24 ` Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 02/24] target/arm/kvm: Return immediately on error in kvm_arch_init() Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 03/24] target/arm: Add confidential guest support Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 04/24] target/arm/kvm-rme: Add mechanic to initialize realms Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 05/24] target/arm/kvm: Split kvm_arch_get/put_registers Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 06/24] target/arm/kvm-rme: Initialize vCPU Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 07/24] target/arm/kvm: Create scratch Realm VM when requested Mathieu Poirier
2026-09-04 3:09 ` Kohei Enju
2026-09-04 16:25 ` Mathieu Poirier [this message]
2026-09-03 19:35 ` [RFC v4 08/24] target/arm/kvm: Use kvm_vm_check_extension() where necessary Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 09/24] hw/core/loader: Add a ROM loader notifier Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 10/24] target/arm/kvm-rme: Keep track of images loaded in Realm memory Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 11/24] target/arm/kvm-rme: Populate Realm with runtime images Mathieu Poirier
2026-09-03 19:35 ` [RFC v4 12/24] target/arm/cpu: Set number of breakpoints and watchpoints in KVM Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 13/24] target/arm/cpu: Set number of PMU counters " Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 14/24] target/arm/cpu: Don't read Realm registers Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 15/24] hw/arm/virt: Set proper conduit method for Realms Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 16/24] hw/arm/virt: Embed Realm VM type with IPA address space Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 17/24] hw/arm/virt: Reserve one bit of guest physical address for RME Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 18/24] hw/arm/virt: Disable DTB randomness for confidential VMs Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 19/24] hw/arm/virt: Move virt_flash_create() to machvirt_init() Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 20/24] hw/arm/virt: Use RAM instead of flash for confidential guest firmware Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 21/24] target/arm/kvm-rme: Add DMA remapping for the shared memory region Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 22/24] docs/interop/firmware.json: Add arm-rme firmware feature Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 23/24] hw/arm/boot: Load DTB as is for confidential VMs Mathieu Poirier
2026-09-03 19:36 ` [RFC v4 24/24] hw/arm/boot: Skip bootloader for confidential guests Mathieu Poirier
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