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* tcg: Fix compilation without TCGJuan Quintela2017-11-231-0/+8
| | | | | | | | | | | | Commit 27266271977c started to use tb_unlock() and tlb_set_dirty() on non TCG code. Add the functions as stubs, so that builds with TCG disabled continue to compile. Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> [PMM: tweaked commit message] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* kvm: check KVM_CAP_SYNC_MMU with kvm_vm_check_extension()Greg Kurz2017-10-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | On a server-class ppc host, this capability depends on the KVM type, ie, HV or PR. If both KVM are present in the kernel, we will always get the HV specific value, even if we explicitely requested PR on the command line. This can have an impact if we're using hugepages or a balloon device. Since we've already created the VM at the time any user calls kvm_has_sync_mmu(), switching to kvm_vm_check_extension() is enough to fix any potential issue. It is okay for the other archs that also implement KVM_CAP_SYNC_MMU, ie, mips, s390, x86 and arm, because they don't depend on the VM being created or not. While here, let's cache the state of this extension in a bool variable, since it has several users in the code, as suggested by Thomas Huth. Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <150600965332.30533.14702405809647835716.stgit@bahia.lan> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* accel/hax: move hax-stub.c to accel/stubs/Philippe Mathieu-Daudé2017-09-192-0/+35
| | | | | | | | | Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20170913221149.30382-1-f4bug@amsat.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
* ARM: KVM: Enable in-kernel timers with user space gicAlexander Graf2017-07-111-0/+5
| | | | | | | | | | | | | | | | | When running with KVM enabled, you can choose between emulating the gic in kernel or user space. If the kernel supports in-kernel virtualization of the interrupt controller, it will default to that. If not, if will default to user space emulation. Unfortunately when running in user mode gic emulation, we miss out on interrupt events which are only available from kernel space, such as the timer. This patch leverages the new kernel/user space pending line synchronization for timer events. It does not handle PMU events yet. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Andrew Jones <drjones@redhat.com> Message-id: 1498577737-130264-1-git-send-email-agraf@suse.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* tcg: add the tcg-stub.c file into accel/stubs/Yang Zhong2017-07-042-0/+23
| | | | | | | | | If tcg is disabled, the functions in tcg-stub.c file will be called. This file is target-independent file, do not include any platform related stub functions into this file. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* accel: move kvm related accelerator files into accel/Yang Zhong2017-06-152-0/+159
move kvm related accelerator files into accel/ subdirectory, also create one stub subdirectory, which will include accelerator's stub files. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <1496383606-18060-5-git-send-email-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>