- 14 3月, 2018 2 次提交
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由 Brijesh Singh 提交于
When SEV is enabled, the hardware encryption engine uses a tweak such that the two identical plaintext at different location will have a different ciphertexts. So swapping or moving a ciphertexts of two guest pages will not result in plaintexts being swapped. Hence relocating a physical backing pages of the SEV guest will require some additional steps in KVM driver. The KVM_MEMORY_ENCRYPT_{UN,}REG_REGION ioctl can be used to register/unregister the guest memory region which may contain the encrypted data. KVM driver will internally handle the relocating physical backing pages of registered memory regions. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: NBrijesh Singh <brijesh.singh@amd.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Brijesh Singh 提交于
When memory encryption is enabled, KVM_SEV_INIT command is used to initialize the platform. The command loads the SEV related persistent data from non-volatile storage and initializes the platform context. This command should be first issued before invoking any other guest commands provided by the SEV firmware. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: NBrijesh Singh <brijesh.singh@amd.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 31 7月, 2017 1 次提交
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由 Philippe Mathieu-Daudé 提交于
With the move of some docs/ to docs/devel/ on ac06724a, no references were updated. Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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- 21 12月, 2016 1 次提交
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由 Thomas Huth 提交于
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [crisµblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: NThomas Huth <thuth@redhat.com>
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- 12 8月, 2016 1 次提交
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由 Laurent Vivier 提交于
Documentation is docs/tracing.txt instead of docs/trace-events.txt. find . -name trace-events -exec \ sed -i "s?See docs/trace-events.txt for syntax documentation.?See docs/tracing.txt for syntax documentation.?" \ {} \; Signed-off-by: NLaurent Vivier <lvivier@redhat.com> Message-id: 1470669081-17860-1-git-send-email-lvivier@redhat.com Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 22 7月, 2016 3 次提交
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由 Peter Xu 提交于
One more IEC notifier is added to let msi routes know about the IEC changes. When interrupt invalidation happens, all registered msi routes will be updated for all PCI devices. Since both vfio and vhost are possible gsi route consumers, this patch will go one step further to keep them safe in split irqchip mode and when irqfd is enabled. Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> [move trace-events lines into target-i386/trace-events] Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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由 Peter Xu 提交于
Adding two hooks to be notified when adding/removing msi routes. There are two kinds of MSI routes: - in kvm_irqchip_add_irq_route(): before assigning IRQFD. Used by vhost, vfio, etc. - in kvm_irqchip_send_msi(): when sending direct MSI message, if direct MSI not allowed, we will first create one MSI route entry in the kernel, then trigger it. This patch only hooks the first one (irqfd case). We do not need to take care for the 2nd one, since it's only used by QEMU userspace (kvm-apic) and the messages will always do in-time translation when triggered. While we need to note them down for the 1st one, so that we can notify the kernel when cache invalidation happens. Also, we do not hook IOAPIC msi routes (we have explicit notifier for IOAPIC to keep its cache updated). We only need to care about irqfd users. Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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由 Peter Xu 提交于
In split irqchip mode, IOAPIC is working in user space, only update kernel irq routes when entry changed. When IR is enabled, we directly update the kernel with translated messages. It works just like a kernel cache for the remapping entries. Since KVM irqfd is using kernel gsi routes to deliver interrupts, as long as we can support split irqchip, we will support irqfd as well. Also, since kernel gsi routes will cache translated interrupts, irqfd delivery will not suffer from any performance impact due to IR. And, since we supported irqfd, vhost devices will be able to work seamlessly with IR now. Logically this should contain both vhost-net and vhost-user case. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> [move trace-events lines into target-i386/trace-events] Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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