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2011-02-14Introduce log_start/log_stop in CPUPhysMemoryClientAnthony PERARD1-10/+0
In order to use log_start/log_stop with Xen as well in the vga code, this two operations have been put in CPUPhysMemoryClient. The two new functions cpu_physical_log_start,cpu_physical_log_stop are used in hw/vga.c and replace the kvm_log_start/stop. With this, vga does no longer depends on kvm header. [ Jan: rebasing and style fixlets ] Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-02-14kvm: Provide sigbus services arch-independentlyJan Kiszka1-0/+5
Provide arch-independent kvm_on_sigbus* stubs to remove the #ifdef'ery from cpus.c. This patch also fixes --disable-kvm build by providing the missing kvm_on_sigbus_vcpu kvm-stub. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-23kvm: Drop smp_cpus argument from init functionsJan Kiszka1-1/+1
No longer used. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-01-10kvm: test for ioeventfd support on old kernelsStefan Hajnoczi1-0/+5
There used to be a limit of 6 KVM io bus devices in the kernel. On such a kernel, we can't use many ioeventfds for host notification since the limit is reached too easily. Add an API to test for this condition. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-10-20MCE: Relay UCR MCE to guestMarcelo Tosatti1-0/+5
Port qemu-kvm's commit 4b62fff1101a7ad77553147717a8bd3bf79df7ef Author: Huang Ying <ying.huang@intel.com> Date: Mon Sep 21 10:43:25 2009 +0800 MCE: Relay UCR MCE to guest UCR (uncorrected recovery) MCE is supported in recent Intel CPUs, where some hardware error such as some memory error can be reported without PCC (processor context corrupted). To recover from such MCE, the corresponding memory will be unmapped, and all processes accessing the memory will be killed via SIGBUS. For KVM, if QEMU/KVM is killed, all guest processes will be killed too. So we relay SIGBUS from host OS to guest system via a UCR MCE injection. Then guest OS can isolate corresponding memory and kill necessary guest processes only. SIGBUS sent to main thread (not VCPU threads) will be broadcast to all VCPU threads as UCR MCE. aliguori: fix build Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-08-15Add kvm_set_ioeventfd_mmio_long definition for non-KVM systemsCam Macdonell1-0/+5
Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03remove exec-all.h inclusion from cpu.hPaolo Bonzini1-0/+1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-19provide a stub version of kvm-all.c if !CONFIG_KVMPaolo Bonzini1-0/+137
This allows limited use of kvm functions (which will return ENOSYS) even in once-compiled modules. The patch also improves a bit the error messages for KVM initialization. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [blauwirbel@gmail.com: fixed Win32 build] Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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