From 719d109b7fe153b0ec4dfeba2f303f864555d819 Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Wed, 24 Jun 2020 18:45:28 +0800 Subject: [PATCH] hw/mips: Implement the kvm_type() hook in MachineClass MIPS has two types of KVM: TE & VZ, and TE is the default type. Now we can't create a VZ guest in QEMU because it lacks the kvm_type() hook in MachineClass. This patch add the the kvm_type() hook to support both of the two types. [AM: Added "if defined" guards.] Reviewed-by: Aleksandar Markovic Signed-off-by: Aleksandar Markovic Signed-off-by: Huacai Chen Co-developed-by: Jiaxun Yang Message-Id: <1592995531-32600-2-git-send-email-chenhc@lemote.com> --- target/mips/kvm.c | 26 ++++++++++++++++++++++++++ target/mips/kvm_mips.h | 11 +++++++++++ 2 files changed, 37 insertions(+) diff --git a/target/mips/kvm.c b/target/mips/kvm.c index 96cfa10cf2..72637a1e02 100644 --- a/target/mips/kvm.c +++ b/target/mips/kvm.c @@ -21,10 +21,12 @@ #include "qemu/main-loop.h" #include "qemu/timer.h" #include "sysemu/kvm.h" +#include "sysemu/kvm_int.h" #include "sysemu/runstate.h" #include "sysemu/cpus.h" #include "kvm_mips.h" #include "exec/memattrs.h" +#include "hw/boards.h" #define DEBUG_KVM 0 @@ -1270,3 +1272,27 @@ int kvm_arch_msi_data_to_gsi(uint32_t data) { abort(); } + +int mips_kvm_type(MachineState *machine, const char *vm_type) +{ +#if defined(KVM_CAP_MIPS_VZ) || defined(KVM_CAP_MIPS_TE) + int r; + KVMState *s = KVM_STATE(machine->accelerator); +#endif + +#if defined(KVM_CAP_MIPS_VZ) + r = kvm_check_extension(s, KVM_CAP_MIPS_VZ); + if (r > 0) { + return KVM_VM_MIPS_VZ; + } +#endif + +#if defined(KVM_CAP_MIPS_TE) + r = kvm_check_extension(s, KVM_CAP_MIPS_TE); + if (r > 0) { + return KVM_VM_MIPS_TE; + } +#endif + + return -1; +} diff --git a/target/mips/kvm_mips.h b/target/mips/kvm_mips.h index 1e4014792d..171d53dbe1 100644 --- a/target/mips/kvm_mips.h +++ b/target/mips/kvm_mips.h @@ -12,6 +12,8 @@ #ifndef KVM_MIPS_H #define KVM_MIPS_H +#include "cpu.h" + /** * kvm_mips_reset_vcpu: * @cpu: MIPSCPU @@ -23,4 +25,13 @@ void kvm_mips_reset_vcpu(MIPSCPU *cpu); int kvm_mips_set_interrupt(MIPSCPU *cpu, int irq, int level); int kvm_mips_set_ipi_interrupt(MIPSCPU *cpu, int irq, int level); +#ifdef CONFIG_KVM +int mips_kvm_type(MachineState *machine, const char *vm_type); +#else +static inline int mips_kvm_type(MachineState *machine, const char *vm_type) +{ + return 0; +} +#endif + #endif /* KVM_MIPS_H */