Lines Matching refs:KVM

52 KVM negotiation
55 When the guest starts under KVM, the capabilities of the host kernel
57 kernel, KVM will advertise the XIVE capability to QEMU or not.
60 depend on the XIVE KVM capability of the host. On older kernels
61 without XIVE KVM support, QEMU will use the emulated XIVE device as a
62 fallback and on newer kernels (>=5.2), the KVM XIVE device.
64 XIVE native exploitation mode is not supported for KVM nested guests,
65 VMs running under a L1 hypervisor (KVM on pSeries). In that case, the
66 hypervisor will not advertise the KVM capability and QEMU will use the
67 emulated XIVE device, same as for older versions of KVM.
69 As a final refinement, the user can also switch the use of the KVM
73 XIVE support in KVM
77 kernels with XIVE KVM support are the following:
85 dual (default)  XIVE KVM       XIVE emul.     XIVE KVM
86 xive            XIVE KVM       XIVE emul.     XIVE KVM
87 xics            XICS KVM       XICS emul.     XICS KVM
99 dual (default)  XICS KVM       XICS emul.     XICS KVM
101 xics            XICS KVM       XICS emul.     XICS KVM
109 No XIVE support in KVM
113 kernels without XIVE KVM support are the following:
123 xics            XICS KVM       XICS emul.     XICS KVM
128     IRQ_XIVE capability must be present for KVM``
129     In some cases (old host kernels or KVM nested guests), one may hit a
130     QEMU/KVM incompatibility due to device destruction in reset. QEMU fails
131     with ``KVM is incompatible with ic-mode=dual,kernel-irqchip=on``
133     IRQ_XIVE capability must be present for KVM``
147 xics            XICS KVM       XICS emul.     XICS KVM
153 (4) QEMU/KVM incompatibility due to device destruction in reset. QEMU fails
154     with ``KVM is incompatible with ic-mode=dual,kernel-irqchip=on``