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Add the WHPX vcpu API

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Adds support for the Windows Hypervisor Platform accelerator (WHPX) stubs and
introduces the whpx.h sysemu API for managing the vcpu scheduling and
management.

Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>
Message-Id: <1516655269-1785-3-git-send-email-juterry@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Justin Terry (VM) 2018-01-22 13:07:47 -08:00 committed by Paolo Bonzini
parent d661d9a42b
commit 29b22c79bc
3 changed files with 93 additions and 4 deletions
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9
accel/stubs/Makefile.objs
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@ -1,4 +1,5 @@
obj-$(call lnot,$(CONFIG_HAX)) += hax-stub.o
obj-$(call lnot,$(CONFIG_HVF)) += hvf-stub.o
obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
obj-$(call lnot,$(CONFIG_TCG)) += tcg-stub.o
obj-$(call lnot,$(CONFIG_HAX)) += hax-stub.o
obj-$(call lnot,$(CONFIG_HVF)) += hvf-stub.o
obj-$(call lnot,$(CONFIG_WHPX)) += whpx-stub.o
obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
obj-$(call lnot,$(CONFIG_TCG)) += tcg-stub.o

48
accel/stubs/whpx-stub.c Normal file
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@ -0,0 +1,48 @@
/*
* QEMU Windows Hypervisor Platform accelerator (WHPX) stub
*
* Copyright Microsoft Corp. 2017
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "cpu.h"
#include "sysemu/whpx.h"
int whpx_init_vcpu(CPUState *cpu)
{
return -1;
}
int whpx_vcpu_exec(CPUState *cpu)
{
return -1;
}
void whpx_destroy_vcpu(CPUState *cpu)
{
}
void whpx_vcpu_kick(CPUState *cpu)
{
}
void whpx_cpu_synchronize_state(CPUState *cpu)
{
}
void whpx_cpu_synchronize_post_reset(CPUState *cpu)
{
}
void whpx_cpu_synchronize_post_init(CPUState *cpu)
{
}
void whpx_cpu_synchronize_pre_loadvm(CPUState *cpu)
{
}

40
include/sysemu/whpx.h Normal file
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@ -0,0 +1,40 @@
/*
* QEMU Windows Hypervisor Platform accelerator (WHPX) support
*
* Copyright Microsoft, Corp. 2017
*
* Authors:
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef QEMU_WHPX_H
#define QEMU_WHPX_H
#include "config-host.h"
#include "qemu-common.h"
int whpx_init_vcpu(CPUState *cpu);
int whpx_vcpu_exec(CPUState *cpu);
void whpx_destroy_vcpu(CPUState *cpu);
void whpx_vcpu_kick(CPUState *cpu);
void whpx_cpu_synchronize_state(CPUState *cpu);
void whpx_cpu_synchronize_post_reset(CPUState *cpu);
void whpx_cpu_synchronize_post_init(CPUState *cpu);
void whpx_cpu_synchronize_pre_loadvm(CPUState *cpu);
#ifdef CONFIG_WHPX
int whpx_enabled(void);
#else /* CONFIG_WHPX */
#define whpx_enabled() (0)
#endif /* CONFIG_WHPX */
#endif /* QEMU_WHPX_H */