From b616a9a2e4a5c8e20ca308fb6e309583803cb19c Mon Sep 17 00:00:00 2001 From: neel Date: Mon, 28 Apr 2014 22:06:40 +0000 Subject: Allow a virtual machine to be forcibly reset or powered off. This is done by adding an argument to the VM_SUSPEND ioctl that specifies how the virtual machine should be suspended, viz. VM_SUSPEND_RESET or VM_SUSPEND_POWEROFF. The disposition of VM_SUSPEND is also made available to the exit handler via the 'u.suspended' member of 'struct vm_exit'. This capability is exposed via the '--force-reset' and '--force-poweroff' arguments to /usr/sbin/bhyvectl. Discussed with: grehan@ --- lib/libvmmapi/vmmapi.c | 7 +++++-- lib/libvmmapi/vmmapi.h | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'lib') diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c index 60d3105..4a7f852 100644 --- a/lib/libvmmapi/vmmapi.c +++ b/lib/libvmmapi/vmmapi.c @@ -343,10 +343,13 @@ vm_run(struct vmctx *ctx, int vcpu, uint64_t rip, struct vm_exit *vmexit) } int -vm_suspend(struct vmctx *ctx) +vm_suspend(struct vmctx *ctx, enum vm_suspend_how how) { + struct vm_suspend vmsuspend; - return (ioctl(ctx->fd, VM_SUSPEND, 0)); + bzero(&vmsuspend, sizeof(vmsuspend)); + vmsuspend.how = how; + return (ioctl(ctx->fd, VM_SUSPEND, &vmsuspend)); } static int diff --git a/lib/libvmmapi/vmmapi.h b/lib/libvmmapi/vmmapi.h index ed63fb2..2a2ca6b 100644 --- a/lib/libvmmapi/vmmapi.h +++ b/lib/libvmmapi/vmmapi.h @@ -61,7 +61,7 @@ int vm_set_register(struct vmctx *ctx, int vcpu, int reg, uint64_t val); int vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval); int vm_run(struct vmctx *ctx, int vcpu, uint64_t rip, struct vm_exit *ret_vmexit); -int vm_suspend(struct vmctx *ctx); +int vm_suspend(struct vmctx *ctx, enum vm_suspend_how how); int vm_apicid2vcpu(struct vmctx *ctx, int apicid); int vm_inject_exception(struct vmctx *ctx, int vcpu, int vec); int vm_inject_exception2(struct vmctx *ctx, int vcpu, int vec, int errcode); -- cgit v1.1