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| author | Joao Martins <joao.m.martins@oracle.com> | 2018-06-28 12:36:19 -0400 |
|---|---|---|
| committer | David Woodhouse <dwmw@amazon.co.uk> | 2023-03-01 08:22:50 +0000 |
| commit | 3b06f29b2497da8362ee25b729a727cb8463fd62 (patch) | |
| tree | 0077c5042b8847f73920a7dcf34c15c701f335ee /target/i386/kvm | |
| parent | 5092db87e4dd97ba66b2afe3c69a82507244134d (diff) | |
| download | qemu-3b06f29b2497da8362ee25b729a727cb8463fd62.zip qemu-3b06f29b2497da8362ee25b729a727cb8463fd62.tar.gz qemu-3b06f29b2497da8362ee25b729a727cb8463fd62.tar.bz2 | |
i386/xen: implement HYPERVISOR_event_channel_op
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
[dwmw2: Ditch event_channel_op_compat which was never available to HVM guests]
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Diffstat (limited to 'target/i386/kvm')
| -rw-r--r-- | target/i386/kvm/xen-emu.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index c0a8e4c..ac143c0 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -28,6 +28,7 @@ #include "hw/xen/interface/memory.h" #include "hw/xen/interface/hvm/hvm_op.h" #include "hw/xen/interface/vcpu.h" +#include "hw/xen/interface/event_channel.h" #include "xen-compat.h" @@ -588,6 +589,27 @@ static bool kvm_xen_hcall_vcpu_op(struct kvm_xen_exit *exit, X86CPU *cpu, return true; } +static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit, + int cmd, uint64_t arg) +{ + int err = -ENOSYS; + + switch (cmd) { + case EVTCHNOP_init_control: + case EVTCHNOP_expand_array: + case EVTCHNOP_set_priority: + /* We do not support FIFO channels at this point */ + err = -ENOSYS; + break; + + default: + return false; + } + + exit->u.hcall.result = err; + return true; +} + int kvm_xen_soft_reset(void) { CPUState *cpu; @@ -694,6 +716,9 @@ static bool do_kvm_xen_handle_exit(X86CPU *cpu, struct kvm_xen_exit *exit) case __HYPERVISOR_sched_op: return kvm_xen_hcall_sched_op(exit, cpu, exit->u.hcall.params[0], exit->u.hcall.params[1]); + case __HYPERVISOR_event_channel_op: + return kvm_xen_hcall_evtchn_op(exit, exit->u.hcall.params[0], + exit->u.hcall.params[1]); case __HYPERVISOR_vcpu_op: return kvm_xen_hcall_vcpu_op(exit, cpu, exit->u.hcall.params[0], |