[libvirt PATCH v4 05/19] qemu: Query hvf capability on macOS

From: Roman Bolshakov <r.bolshakov(a)yadro.com&gt; There's no QMP command for querying if hvf is supported, therefore we use sysctl interface that tells if Hypervisor.framework works/available on the host. Signed-off-by: Roman Bolshakov <r.bolshakov(a)yadro.com&gt; Signed-off-by: Andrea Bolognani <abologna(a)redhat.com&gt; Reviewed-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- src/qemu/qemu_capabilities.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 6b7e295f68..56325d1762 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -56,6 +56,10 @@ #include <unistd.h> #include <stdarg.h> #include <sys/utsname.h> +#ifdef __APPLE__ +# include <sys/types.h> +# include <sys/sysctl.h> +#endif #define VIR_FROM_THIS VIR_FROM_QEMU @@ -3195,6 +3199,33 @@ virQEMUCapsProbeQMPKVMState(virQEMUCaps *qemuCaps, return 0; } +#ifdef __APPLE__ +static int +virQEMUCapsProbeHVF(virQEMUCaps *qemuCaps) +{ + int hv_support; + size_t len = sizeof(hv_support); + + if (sysctlbyname("kern.hv_support", &hv_support, &len, NULL, 0) < 0) + hv_support = 0; + + if (qemuCaps->version >= 2012000 && + (qemuCaps->arch == VIR_ARCH_X86_64 || + qemuCaps->arch == VIR_ARCH_AARCH64) && + hv_support) { + virQEMUCapsSet(qemuCaps, QEMU_CAPS_HVF); + } + + return 0; +} +#else +static int +virQEMUCapsProbeHVF(virQEMUCaps *qemuCaps G_GNUC_UNUSED) +{ + return 0; +} +#endif + struct virQEMUCapsCommandLineProps { const char *option; const char *param; @@ -5344,6 +5375,9 @@ virQEMUCapsInitQMPMonitor(virQEMUCaps *qemuCaps, if (virQEMUCapsProbeQMPKVMState(qemuCaps, mon) < 0) return -1; + if (virQEMUCapsProbeHVF(qemuCaps) < 0) + return -1; + type = virQEMUCapsGetVirtType(qemuCaps); accel = virQEMUCapsGetAccel(qemuCaps, type); -- 2.31.1